Software/Corporate Tax/
Longview Tax
Longview Tax
Corporate Tax
Vetted by Audit Friendly
Updated 8 days ago · next refresh 14d

Longview Tax Review

Longview Tax is insightsoftware's income tax provision and reporting platform for corporate tax departments at multinationals, calculating current and deferred tax under ASC 740 or IAS 12 with ETR forecasting, state-level provision, Pillar Two and country-by-country reporting.

The short version
Supports ASC 740 and IAS 12 with national, regional and multi-regional (state) provisions, per the Longview 26 documentation (checked 10 October 2026).|Quote only. The agreement dated 15 June 2026 renews automatically unless cancelled 60 days ahead and allows annual fee changes on 60 days' notice.|No MCP server. A documented REST API reads and writes data; Lineos AI assistants reached the Excel add-in in release 26.3 (July 2026) as a paid entitlement.|29 live Audit Friendly job postings named Longview Tax on 4 October 2026, a small but real pool of employers running it.
Demo video
Watch the
Longview Tax
 demo
Score
73
Price
Quote only
Time to live
6 to 8 weeks (vendor)
Best fit
Multinationals on IFRS or US GAAP
How it's priced
Quote only: named-user licenses plus licensed modules
In market
1994
Audit Friendly Score
73
/ 100

Independently scored, one dimension at a time. Every dimension is sourced, and we say whether a claim is published, reported, or estimated.

The lowest-scoring dimension is the weak point. Read that one first.
Tax content & coverage
83
+

The documentation supports both ASC 740 and IAS 12, with interim ETR, return-to-provision, uncertain tax position inputs, regional apportionment factors and deferred tax netting. The Global Transparency module covers Pillar Two (GloBE income, covered taxes, QDMTT, UTPR, safe harbours and GIR-aligned data) and CbCR with an HMRC-format XML export and, since release 26.3, EU and Australian public CbCR. Release 26.2 added Canadian EIFEL calculations. It prepares no income tax returns, and the guides describe customers importing and updating tax rates themselves, with no rate content feed documented.

Compliance depth
80
+

insightsoftware's trust center lists a Longview SOC 1 Type 2 audit report and a Longview SOC 2 Type 2 audit report for 2025, October 2026 bridge letters and a 2026 Longview penetration test report (checked 10 October 2026). The documentation covers workflow statuses through Submitted for Approval and Approved, data locks, an Effective User Authorization report and a native SSO service. The weak point is the data audit trail: the server configuration reference shows it cleared by default, and the audit article says journal entry changes and server-calculated values are left out.

Scalability
78
+

The platform runs national, regional and multi-regional provisions with currency translation, and release 26.2 (April 2026) reorganized FX and deferred tax calculations for systems with many dimensions and currencies. Longview reported 700 enterprise customers and more than 100,000 users when insightsoftware acquired it in February 2020, a platform-wide figure that includes Close and Plan. IHG said in May 2023 that it had run its tax close on Longview Tax for more than 10 years. No public limits on entities or users are documented, and on-premises scale depends on the customer's own Windows Server and SQL Server or Oracle estate.

Integrations & data flow
76
+

The product page names Oracle E-Business Suite, Microsoft Dynamics, NetSuite, SAP, Infor, Workday and PeopleSoft as integration examples, and release 24.4 added a live SAP S/4HANA Public Cloud connection for new cloud customers. The integration guide documents ODBC imports, calls to third-party REST APIs, SOAP web services, an ODS extract and a REST API of its own, and the Excel add-in writes data back. insightsoftware's webinar page for releases 25.3 and 25.4 announces Deloitte, KPMG and Orbitax connectors for Pillar Two, while the public release notes describe a generic CSV extract. No packaged export to a named US return package is documented.

Implementation
73
+

insightsoftware says an out-of-the-box implementation normally takes six to eight weeks across six stages, in a blog dated 22 January 2021. The Vanderlande case study shows a November 2020 kickoff, testing finished by mid-February 2021 and a March 2021 deadline met with partner Taxvibes, on time and on budget according to the customer. The implementer guide lists import templates for hierarchies, tax rates, FX rates, beginning balances and users. Custom journal entry output and ERP feeds add work, and the administrator clients are Windows applications.

Support
70
+

The Support Policy dated September 2026 sets service hours of 3 am to 8 pm Eastern on weekdays, three named support contacts at no charge and Priority 1 acknowledgement within one regional business hour. It commits to 99.5 percent monthly SaaS availability, with service credits starting in the second consecutive month missed. The policy lists no 24x7 option for Longview, and versions more than 18 months old fall out of support. Instructor-led Longview Tax courses for analysts, administrators and implementers are listed with CPE credit.

AI / agent readiness
50
+

No first-party MCP server appears in the public MCP registry or on GitHub (checked 10 October 2026). The Longview help center, as read on 10 October 2026, documents a REST API with GET and PUT on data plus hierarchy and attribute endpoints, a framework for custom endpoints and, per the 26.1 release notes, Organization API Keys as service accounts. In-product AI is assistive: Lineos Data Assist, Text Assist and Report Assist in the Excel add-in from release 26.3 under a separate entitlement, plus a documentation chatbot; the vendor's webinar page for releases 26.1 and 26.2 also lists natural-language data queries, report templates and Excel formula help.

Pricing transparency
32
+

There is no list price; the product and demo pages lead to a pricing request form (checked 10 October 2026). The only public benchmark is Vendr's company-wide insightsoftware median of $47,000 a year (reported; page last updated February 2026), which spans every insightsoftware product. The documentation shows Task Management and the Lineos AI features need a separate license or entitlement, and the June 2026 agreement allows annual fee changes on 60 days' notice.

Expand all
Click any dimension to read the reasoning behind the number.
The verdict

A flexible provision platform for global groups, with opaque pricing, dated admin tools and no return filing.

Written by the Audit Friendly research team. No vendor edits, no sponsored placement.

Longview Tax is a provision and tax reporting database built on the Longview performance management platform, which insightsoftware bought in February 2020. It calculates current and deferred tax by legal entity and jurisdiction under ASC 740 or IAS 12, drafts the income tax disclosure, forecasts the effective tax rate and runs state-level provisions through its regional and multi-regional processes. The same data set feeds Pillar Two, QDMTT and country-by-country reporting, and versions 26.1, 26.2 and 26.3 shipped in January, April and July 2026. The pitch is control by the tax team: a tax administrator configures it, and an Excel add-in writes back to the database.

The catch is scope and transparency. The product stops at reporting, with no return preparation or e-filing, so a US group still needs a compliance package and a way to carry provision data into it. Pricing is quote only, licensing defaults to named users, and Task Management and the Lineos AI assistants need their own license or entitlement. The published agreement lets insightsoftware change fees every year on 60 days' notice. The administrator tools are Windows clients, tax rates are loaded by the customer, and the server configuration reference shows the data audit trail off by default.

Before signing, get a written quote that names every module, user type and AI entitlement, with a multi-year cap on fee changes. Confirm that the data audit trail and workflow approvals will be enabled from day one, and ask for the Longview SOC 1 Type 2 and SOC 2 Type 2 reports listed in the trust center. Have the implementation plan state who builds the ERP feed and the journal entry output. Ask how the 15-day window to request data after a SaaS term ends will apply to your contract.

Best for
  • A multinational reporting under IFRS or US GAAP that wants provision, ETR forecasting, CbCR and Pillar Two estimates on one data set
  • A tax department with a capable in-house administrator that wants to own configuration without leaning on IT or consultants
  • A Canadian or US group that needs state-by-state provision or the EIFEL interest limitation inside the provision workflow
Not for
  • A US tax department that wants provision and Form 1120 compliance in one system, which Longview Tax does not offer
  • A small domestic team that needs a list price or a self-serve trial before it will start a sales cycle
  • A buyer who wants AI agents operating the provision today: the shipped AI assists inside Excel and no MCP server exists
What it solves for finance

The jobs a tax team actually hires Longview Tax for

Jobs, mapped to how finance teams actually buy.

Provision

Close the quarterly and annual provision under ASC 740 or IAS 12

Once the trial balance and permanent and temporary differences are in, Tax Provision calculates current and deferred tax by legal entity and jurisdiction and drafts the income tax disclosure with supporting schedules. Separate input apps and user guides exist for each standard, so an IFRS parent and a US GAAP subsidiary group can sit on the same platform. Interim and actual processes are both covered.

State tax

Run a state-by-state provision in place of a blended rate

The regional and multi-regional processes hold state tax rates, apportionment factors and regional temporary differences, and the regional provision flows into the national current provision as a deduction. Release 26.2 (April 2026) added National Transfer Exceptions, which stop national temporary differences flowing to regions where they do not apply. The customer maintains the state rates and factors.

Pillar Two

Estimate Pillar Two and QDMTT top-up tax during the close

The Global Transparency module fills GloBE temporary differences from provision balances, populates GloBE income and covered taxes through configured automations, and calculates the jurisdictional ETR and top-up tax. Releases through 26.1 added QDMTT additional top-up tax, UTPR allocation, transitional safe harbour thresholds and a GIR-aligned account structure. Full local filings go through a partner tool: insightsoftware announced an Orbitax integration on 29 July 2025.

Transparency

Produce country-by-country reports and filing files

CbCR data is collected by entity, reviewed and exported as a CSV for a third-party filing tool, an HMRC-format XML file or an Australian public CbC XML file. Release 26.3 added multi-currency entry with translation to the group currency. BiC, in the vendor's case study, went looking for a tool when it had to implement CbC reporting in 2017.

Forecasting

Forecast the effective tax rate before year end

Forecast scenarios and interim ETR calculations reuse the provision model, so the tax team can see the likely year-end rate while there is still time to act. Vanderlande's tax assurance specialist told insightsoftware that most users reported 25 to 50 percent less time on corporate income tax reporting after go-live, a self-reported figure the vendor publishes. No independent study backs a typical saving.

Canada

Calculate the Canadian EIFEL interest limitation inside the provision

Release 26.2 computes interest and financing expenses and revenues, adjusted taxable income, excess and absorbed capacity and the group ratio election, with automation from trial balance accounts. The unused capacity carryforward then flows into deferred tax. insightsoftware claims Longview Tax is the only tax platform with native EIFEL functionality, a vendor claim that no independent source confirms.

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More demos
Clips · agent-checked monthly
0:38
Overview
Would You Ask a Chef To Cut With a Bending Blade? | Longview Tax
A 38-second official Longview Tax advert built on an analogy about a chef handed the wrong knife, according to its description. It shows how insightsoftware positions the product in 2026: purpose-built tools for the tax team in place of workarounds. Posted 2 July 2026 with about 80 views; it is an advert, so expect no product detail. Transcript not read.
insightsoftware on YouTube (official)
https://www.youtube.com/watch?v=KEPWL8YN4QI
5:20
Feature
What is SSO? How to use and setup Longview SSO Service?
A 5:20 official guide to the Longview SSO service, covering SAML, OpenID and OAuth sign-in flows and setup, per its description. It matters to IT and security reviewers who need to know how users will authenticate. Posted 18 October 2024 with about 220 views; it is platform-level and says nothing about provision functionality. Transcript not read.
insightsoftware on YouTube (official)
https://www.youtube.com/watch?v=KAfv4bURUz8
3:53
Feature
Introducing Longview's Multidimensional System
A 3:53 official explainer of the Longview data model: dimensions, hierarchies and how the chart of accounts sits inside them, per its description. Worth watching for whoever will administer the system, because every provision report and import is built on these structures. Posted 14 October 2024 with about 280 views; it is a concept video for the whole Longview platform and shows no tax calculation. Transcript not read.
insightsoftware on YouTube (official)
https://www.youtube.com/watch?v=HfyJYZ1CTNk
30:42
Webinar
BDO Webinar Series: Tax Automation and Innovation - Part 6: Tax Provision
A 30:42 BDO LLP webcast in which a BDO partner and an insightsoftware product manager look at how Longview Tax Provision automates manual provision work, per its description. It is the only long-form walkthrough found on YouTube, so it is the closest thing to an outside view of the product. Posted 4 May 2023 with about 1,500 views; BDO advises on tax technology and the co-presenter works for the vendor, and the video is more than three years old. Transcript not read.
BDO LLP on YouTube
https://www.youtube.com/watch?v=fj9hQnM9cPw
2:18
Feature
Introducing insightsoftware's Longview AI Doc Assist!
A 2:18 official clip introducing AI Doc Assist, which per its description answers questions such as how to enter tax rates and manage entities in Longview Tax. It shows a buyer what the documentation chatbot does and that it is a help tool. Posted 27 September 2024 with about 200 views by the vendor; it does not cover the Lineos assistants added to the Excel add-in in 2026. Transcript not read.
insightsoftware on YouTube (official)
https://www.youtube.com/watch?v=JzaQ9QRBu7k
2:17
Workflow demo
Longview Tax: BEPS Pillar 2 Demo
A 2:17 official demo of the Pillar Two capability in Longview Tax, framed around the BEPS 2.0 rules. A tax director can use it to check how GloBE calculations sit beside the provision. Posted 14 May 2024 with about 760 views; it is vendor marketing and predates the QDMTT, UTPR and GIR work in the 2025 and 2026 releases. Transcript not read.
insightsoftware on YouTube (official)
https://www.youtube.com/watch?v=XeVXSjguKe8
1:01
Overview
Longview Tax from insightsoftware - Product Overview
A 61-second official overview of Longview Tax that, per its description, pitches unifying tax data, automating tasks and reducing risk. It gives a head of tax the vendor's positioning in about a minute. Posted 24 September 2025 on insightsoftware's channel with about 190 views; the vendor made it to sell the product, and at this length it cannot show a full provision cycle. Transcript not read.
insightsoftware on YouTube (official)
https://www.youtube.com/watch?v=zV_gH0mogtc
0:32
Real-user
The Tax Exchange: What Challenges Are Multinational Companies Facing Today?
A 32-second official Short on the pressures facing multinational tax teams, naming tariffs, transfer pricing, Pillar Two and ERP integration in its description. It is useful as a quick read on the problems insightsoftware says Longview Tax is built for. Posted 6 November 2025 with about 100 views; it is vendor thought leadership with no product walkthrough. Transcript not read.
insightsoftware on YouTube (official)
https://www.youtube.com/shorts/GMLGcncobhM
0:32
Real-user
The Tax Exchange Series
A 32-second official Short introducing The Tax Exchange, insightsoftware's series of practitioner conversations on transfer pricing, global regulation, AI and ERP realities, according to its description. A head of tax can use it to see what the vendor's tax team talks about in public. Posted 27 February 2026 with about 100 views; the vendor made it as a trailer, and it shows no product. Transcript not read.
insightsoftware on YouTube (official)
https://www.youtube.com/shorts/1wg-yBXKPak
Side by side

Compare on what matters

Dimension
Longview Tax
73
/100
This page
ONESOURCE Tax Provision
76
Pick a tool
Compliance depth
Trust center lists Longview SOC 1 and SOC 2 Type 2 reports (2025) and October 2026 bridge letters; the docs show the data audit trail cleared by default.
SOC 1 and SOC 2 reports dated June 2026 on Thomson Reuters' Whistic profile; an audit trail of all entries; preparer plus six reviewer sign-off roles.
CSC says users drill from summary results to transaction-level detail with a complete audit trail, with provision and compliance on one connected platform.
Scalability
Runs national, regional and multi-regional provisions across entities and currencies; Longview counted 700 enterprise customers when acquired in 2020.
Positioned for upper-mid-sized corporations through multinationals; models dozens of legal entities and multiple currencies with configurable hierarchies.
CSC reports 1,000 corporate clients in 100 countries, including 50 percent of the Fortune 500, with one-click global calculations.
AI / agent readiness
No MCP server. Public docs cover a REST API that reads and writes data; licensed Lineos AI assistants reached the Excel add-in in release 26.3.
No Thomson Reuters MCP server for it in the public MCP registry (checked 10 October 2026); Tax Provision Modern APIs are listed on the TR Developer Portal.
No MCP server; a Corptax connector on Microsoft Learn gives Power Automate and Copilot Studio 15 actions, throttled at 100 calls per 60 seconds.
Support
Policy hours are weekdays 3 am to 8 pm Eastern, with three named contacts included and Priority 1 acknowledged within one business hour; no 24x7 option listed.
US phone support runs Monday to Friday, 7 am to 7 pm Central, per the Thomson Reuters help page; the product page links to training and support.
24x7 access to help and extended busy-season weekend hours; Silver plan included, Gold and Platinum paid; CSC cites a 99 percent satisfaction rating.
Implementation
Vendor says six to eight weeks out of the box across six stages; Vanderlande ran from a November 2020 kickoff to a March 2021 deadline with partner Taxvibes.
Thomson Reuters publishes no typical go-live timeline on the product page; the product connects to an existing ERP and Excel workpapers.
Corptax Professional Services offers guided-to-full implementation help; CSC publishes no typical timeline on the Corptax overview page.
Pricing transparency
Quote only. Pages route to a pricing request form, licensing defaults to named users with separately licensed modules, and no benchmark isolates the product.
Quote only: the product page offers a free demo request and a sales line, with no list price (checked 10 October 2026).
Quote only. Vendr shows an $82,547 median on a very small sample, and Gold and Platinum support plans are paid upgrades.
Tax content & coverage
ASC 740 and IAS 12 provision, interim ETR, state-level regional provision, Pillar Two, CbCR with HMRC XML and Canadian EIFEL. No return preparation.
Generates tax reports, footnotes and journal entries automatically, with hundreds of standard reports; sold alongside ONESOURCE State Apportionment.
GAAP and IFRS provision plus US and international compliance; its GMT module calculates top-up taxes and prepares the GloBE Information Return.
Integrations & data flow
Excel add-in with write-back, ODBC and REST imports, an SAP S/4HANA Public Cloud connector, and announced Deloitte, KPMG and Orbitax Pillar Two connectors.
Integrates directly with ERP systems and Excel workpapers, syncing data across jurisdictional levels, per the Thomson Reuters product page.
Delivers ERP-ready journal entries from the provision; a Power Platform connector imports and exports data through pre-defined Corptax packages.
Pricing intelligence

What it actually costs

Here's what it really costs: published rates where a vendor lists them, aggregated quote data where they don't, plus a path to your own number.

AF Score
73/100
Audit Friendly score for Longview Tax across eight dimensions, 11 October 2026.
Job postings
29
Live Audit Friendly job postings naming Longview Tax, counted 4 October 2026.
Vendor go-live estimate
6 to 8 weeks
insightsoftware's stated time for an out-of-the-box implementation, from a blog dated 22 January 2021 (checked 10 October 2026).
Longview Tax (Tax Provision)
Quote only

Current and deferred provision under ASC 740 or IAS 12, ETR, forecasting and state-level regional provision. No list price is published; the default licensing model is Named User.

Global Transparency (Pillar Two and CbCR)
Quote only

Pillar Two, QDMTT and country-by-country reporting. insightsoftware said in May 2023 that Pillar Two is also sold as a standalone offering.

Task Management
Quote only

Tracks tax tasks, due dates and documents. The Longview help center, as read on 10 October 2026, says it is purchased under a separate license.

Lineos AI (Data, Text and Report Assist)
Quote only

AI assistants in the Excel add-in from release 26.3. The Longview help center, as read on 10 October 2026, says they require a valid AI entitlement and are off by default.

Longview Transfer Pricing
Quote only

Operational transfer pricing is a separate Longview product on the same platform, with its own demo and pricing request.

Implementation, training and consulting
Quote only

Quoted by insightsoftware services or a partner; the training page says an expert follows up on scheduling and pricing.

Standard support
Included

Up to three named support contacts at no charge under the Support Policy; additional contacts may carry a fee.

Audit Friendly pricing intel
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Longview Tax
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Implementation reality

What it actually takes to go live

Difficulty
Medium
3
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Weeks 1 to 2
Project organization and system setup
Week 3
Design
Weeks 4 to 5
Configuration
Weeks 6 to 7
Testing
Plan for the vendor's six stages: project organization, system setup, design, configuration, testing and roll-out, ending in a parallel run. insightsoftware puts an out-of-the-box rollout at six to eight weeks; the one dated customer account, Vanderlande, ran about four months from kickoff to its March 2021 deadline with a partner. The heavy lifts are the trial balance feed, mapping accounts to permanent and temporary differences, loading beginning deferred balances and any custom journal entry format.
Who you need on the project
Head of tax and a provision manager, a named Longview tax administrator, the controller for the close calendar and journal entries, IT or the ERP team for trial balance feeds and SSO, insightsoftware services or a partner such as Taxvibes, and the external auditor for the parallel run.
Things to watch for
01
Contract
Fees can change every year on 60 days' notice

Section 8.1.2 of the Software and Services Agreement, last updated 15 June 2026, says insightsoftware may modify fees annually during the term with at least 60 days' written notice, unless the purchase document states otherwise. Section 7.1 renews licenses automatically for a period equal to the initial term unless either party gives 60 days' written notice, and section 8.3 makes payment obligations non-cancelable. The agreement sets no percentage cap. Write a cap and the renewal term into the order form (checked 10 October 2026).

01
Controls
The data audit trail is off by default

The Server Configuration reference in the Longview 26 help center, as read on 10 October 2026, lists the Data audit trail setting as cleared by default. The Reviewing Data Audit article, read the same day, adds that the feature is only available when enabled, that changes made by journal entry are excluded, and that server-calculated values such as translated currencies have no audit rows. That is the documented server default, so ask insightsoftware how a cloud-hosted system is set at handover. For a SOX-relevant provision, confirm in the design phase that the audit trail, workflow approvals and locks are all enabled, and test what your auditor will be shown.

01
Scope
It calculates and reports, and stops short of returns

The product pages and documentation describe provision, forecasting, disclosure, CbCR and Pillar Two, and list no US or other income tax return forms and no e-filing (checked 10 October 2026). CbCR leaves the system as a CSV or XML file for filing elsewhere, and insightsoftware's 29 July 2025 release pairs Longview Tax with Orbitax for local Pillar Two compliance and filing. A US group will keep a compliance package and should ask how provision data reaches it. ONESOURCE and Corptax both pair provision with their own return products.

01
Pricing
Task tracking and AI are licensed separately

The Task Management overview in the documentation says the module is purchased under a separate license. The Lineos AI assistants added in release 26.3 require a valid AI entitlement, and the environment setting is cleared by default, per the Server Configuration and user administration articles. Pillar Two was launched in May 2023 as part of the product and as a standalone offering. Ask for a quote that lists each module and entitlement as its own line (checked 10 October 2026).

01
Migration
Windows clients and a rolling upgrade clock

The Longview 26 help center, as read on 10 October 2026, describes Application Administrator and Server Manager as Windows-based clients. On-premises installs need Windows Server 2022 or 2025 with SQL Server (Oracle 19c is listed for Windows Server 2022), and Windows Server 2019 support ended after version 26.1. The Support Policy dated September 2026 says insightsoftware is not obliged to support versions more than 18 months old. The live SAP S/4HANA Public Cloud connection in release 24.4 was introduced for new cloud customers, so existing installs should ask what applies to them.

01
Contract
Fifteen days to ask for your data back

The standard SaaS support terms in the Support Policy dated September 2026 give a customer 15 calendar days after termination or expiry to request its data in an insightsoftware-approved exportable format, with delivery within 15 calendar days of the request. The master agreement itself says access rights cease immediately on termination. Export provision history, rollforwards and supporting schedules before the term ends, and negotiate a longer window if year-end falls close to renewal (checked 10 October 2026).

How Claude & agents work with it
2
/ 5
Agent readiness

Scored on what an outside agent can actually reach: the documented API, how it authenticates, and whether the vendor ships an MCP server.

No MCP server. A documented REST API reads and writes data, and the Excel add-in gained licensed Lineos AI assistants in July 2026.
ONESOURCE Tax Provision
CSC Corptax

Exists: No first-party MCP server exists for Longview Tax. The public MCP registry returns only an unrelated City of Longview, Texas mapping server for 'longview' and nothing for 'insightsoftware', and a GitHub search for an insightsoftware MCP repository returns no results (checked 10 October 2026). insightsoftware's separate Simba Intelligence product markets governed API and MCP access to enterprise data, and its page does not name Longview Tax as a source.

Scope: The reachable surface is the Longview REST API, documented in the public Longview 26 help center (read 10 October 2026). Standard endpoints return and update data (GET and PUT on /solutions/data), read and update hierarchies and read attribute values. The Application Framework also lets a developer expose any procedure as a custom REST endpoint, and the docs give posting a calculated tax provision journal entry from Longview Tax to Longview Close as an example. Calls need a session and the Connect to Application Framework authorization, and the base URL is the customer's own Longview web server. The 26.1 release notes (January 2026), as read on the same date, describe Organization API Keys as service accounts for customers on the insightsoftware Platform; the vendor's webinar page for that release does not list them, so confirm availability with insightsoftware.

Turnkey: Nothing is turnkey. An administrator has to create the service account or API key and grant authorizations, an implementer usually has to write Application Framework procedures for anything beyond the standard endpoints, and someone has to build a custom MCP wrapper or script before Claude can call it. The Software and Services Agreement updated 15 June 2026 defines Authorized Users as humans and states that bots are never Authorized Users, so ask in writing how agent access is licensed.

In-product AI: The 26.3 release notes, as read in the Longview help center on 10 October 2026 and dated July 2026, add Lineos AI to the Longview Add-In for Office. Data Assist analyzes selected worksheet data, Text Assist summarizes or rewrites text, and Report Assist summarizes Longview reports. The docs say these need a valid AI entitlement, are switched off by default at the environment level and are granted to individual users or user groups. insightsoftware's webinar page for releases 26.1 and 26.2 (January and April 2026) also lists Longview AI features that query data in natural language, generate report templates and help with Excel formulas; ask which of these are generally available and how they are licensed. AI Doc Assist, a chatbot that answers how-to questions from the documentation with links to source articles, arrived with release 24.3 in 2024 for systems on the insightsoftware Platform. None of these runs or reviews the provision calculation.

Claude can
With a customer-built wrapper around the REST API, Claude could read provision data, hierarchies and attributes, write values back through PUT /solutions/data within the service account's permissions, and call any custom procedure an implementer has exposed.
Claude can't
Claude cannot connect out of the box and has no first-party MCP server to use. No standard endpoint approves a workflow step or signs off a provision, so anything beyond data, hierarchy and attribute calls needs custom Application Framework code.
What's new · agent-updated every 2 weeks

Longview Tax, kept current

September 16, 2026
News
insightsoftware reorganizes into Lineos, Certent and Simba brands

insightsoftware launched three brands on 16 September 2026. Longview Tax remains listed as a standalone insightsoftware product, and the company says it will keep selling and supporting insightsoftware products.

July 15, 2026
Feature
Longview 26.3 adds Lineos AI to the Excel add-in and public CbCR

The release notes, read in the Longview help center on 10 October 2026 and dated 15 July 2026, add Report Assist, Data Assist and Text Assist under license, EU and Australian public CbCR, multi-currency CbCR entry and self-service scheduling for cloud-hosted customers.

June 15, 2026
Pricing
Software and Services Agreement updated

The master agreement was last updated 15 June 2026. It keeps automatic renewal with 60 days' notice and an annual right to modify fees on 60 days' notice.

April 15, 2026
Feature
Longview 26.2 adds Canadian EIFEL calculations and faster FX

The release notes, read in the Longview help center on 10 October 2026 and dated 15 April 2026, add EIFEL interest limitation calculations, National Transfer Exceptions for multi-regional provision and faster FX and deferred tax processing. Windows Server 2019 is no longer supported.

January 13, 2026
Feature
Longview 26.1 adds QDMTT additional top-up tax and SBIE automation

The release notes, read in the Longview help center on 10 October 2026 and dated 13 January 2026, add QDMTT prior-year adjustments, SBIE automation, a GIR-ordered GloBE income hierarchy and schedule locking from Excel. insightsoftware's webinar page for releases 26.1 and 26.2 gives the same January timing.

July 29, 2025
Connector
Orbitax partnership links provision to Pillar Two compliance

insightsoftware and Orbitax announced an integration on 29 July 2025 that passes Longview Tax provision data into Orbitax's Pillar Two solution for jurisdiction-specific calculation, reporting and filing.

Questions buyers ask

Longview Tax FAQ

What does Longview Tax cost for a typical corporate tax department?
−

There is no published price. The product, demo and pricing pages lead to a request form, and insightsoftware quotes each deal (checked 10 October 2026). The agreement's default licensing model is Named User, and the documentation shows Task Management and the Lineos AI assistants as separately licensed.

The only public benchmark is Vendr's company-wide figure for insightsoftware: a median of $47,000 a year, with the middle 80 percent of Vendr's reported deals between $19,957 and $103,563 (reported; page last updated February 2026, checked 11 October 2026). Those figures cover every insightsoftware product, so they do not tell you what a multi-entity provision deal with Pillar Two costs.

Budget separately for implementation and training, which the services team quotes. Ask for a written proposal that prices users by type, each module and the services hours, with a cap on annual fee changes.

What are the contract terms, and how do you get your data and history out?
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The Software and Services Agreement last updated 15 June 2026 renews automatically for a term equal to the initial term unless either party gives 60 days' written notice. It lets insightsoftware modify fees annually on 60 days' notice unless the order form says otherwise, and payment obligations are non-cancelable.

For cloud customers, the Support Policy dated September 2026 gives 15 calendar days after the term ends to request data in an approved exportable format, delivered within 15 days of the request. During the term you can pull data yourself through the Excel add-in, CSV exports, the REST API and the ODS extract described in the integration guide.

On-premises customers hold the database on their own SQL Server or Oracle instance. Perpetual on-premises licenses are described in the agreement as available to existing customers only, so a new buyer should expect a fixed-term license.

How long does implementation take, and who does the work?
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insightsoftware says an out-of-the-box implementation normally takes six to eight weeks, in a blog dated 22 January 2021 that sets out six stages: project organization, system setup, design, configuration, testing, and final preparation and roll-out. The last stage includes a parallel run before sign-off.

The one dated customer account is longer. Vanderlande kicked off in November 2020, finished testing by mid-February 2021 and met a March 2021 deadline with implementation partner Taxvibes, on time and on budget according to the customer.

The vendor says a tax manager can do much of the configuration, with an IT contact for data integration. In practice you need a named tax administrator, someone who owns the trial balance feed, and insightsoftware services or a partner for custom calculations and journal entry formats.

Can Claude or another AI agent operate Longview Tax?
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There is no turnkey route today. No first-party MCP server exists in the public MCP registry or on GitHub (checked 10 October 2026).

A developer can build one on the REST API documented in the Longview help center (read 10 October 2026). Standard endpoints read and update data and hierarchies and read attribute values, and custom endpoints can run any Application Framework procedure. The 26.1 release notes describe Organization API Keys as service accounts for insightsoftware Platform customers, so ask insightsoftware to confirm they are available on your deployment. Check licensing first: the June 2026 agreement says bots are never Authorized Users.

Inside the product, the Lineos assistants in the Excel add-in analyze selected data, summarize text and summarize reports, under a separate AI entitlement. They do not calculate, review or approve the provision.

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What does it actually cost?
How long does implementation take?
Can Claude connect to it?
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Ready to get a real number?
Longview Tax is priced only by quote, so ask insightsoftware for a written proposal that lists users by type, each module (Tax Provision, Global Transparency, Task Management, Lineos AI) and services hours, with a cap on annual fee changes. Ask for the Longview SOC 1 Type 2 and SOC 2 Type 2 reports, a dated implementation plan and a reference customer on your accounting standard.