Best Tax Provision Software in 2026
Updated
In short: OneStream is ranked #1 of 19 as of 4 October 2026, ahead of Kleos and Flowie. The best-ranked option with a free plan is Flowie. The lowest first paid tier on this page is Flowie at €12/mo.
Tax provision software supports the work of calculating, reviewing, and reporting tax provisions. Compare provision scope and accounting standards, then look at rate reconciliation, tax forecasting, and provision-to-return capabilities. Excel workflow and jurisdiction limits may also matter, along with free-plan and paid-from details. Kleos appears first in the ranking, followed by Flowie and CSC Corptax; Lucasys Tax Provision is also among the first entries. Consider which standards, jurisdictions, and provision processes your organization needs to cover when reviewing the listed features.
19 tax provision software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Recognised 40% · Phone app 26% · Documented 20% · Free plan 14% of the score
- 1 OneStream iPhone + Android RecognisedPhone appDocumentedFree plan 7.4
- 2 Kleos iPhone + Android RecognisedPhone appDocumentedFree plan 7.1
- 3 Flowie No phone app RecognisedPhone appDocumentedFree plan 6.3€12/mo
- 4 CSC Corptax No phone app RecognisedPhone appDocumentedFree plan 5.9 Accounting standards: asc 740Provision scope: current and deferredTax forecasting: Yes
- 5 Lucasys Tax Provision No phone app RecognisedPhone appDocumentedFree plan 5.8 Accounting standards: asc 740Provision scope: current and deferredTax forecasting: Yes
- 6 PowerPlan Tax Provision No phone app RecognisedPhone appDocumentedFree plan 5.8 Accounting standards: asc 740Tax forecasting: Yes
- 7 Tax Series No phone app RecognisedPhone appDocumentedFree plan 5.8
- 8 TaxLab Nucleus No phone app RecognisedPhone appDocumentedFree plan 5.8 Provision scope: current and deferredTax forecasting: Yes
- 9 TaxProvision.net No phone app RecognisedPhone appDocumentedFree plan 5.8 Accounting standards: asc 740Provision scope: current and deferred
- 10 Bloomberg Tax No phone app RecognisedPhone appDocumentedFree plan 5.6
- 11 ONESOURCE Certificate Manager No phone app RecognisedPhone appDocumentedFree plan 5.6 Accounting standards: bothProvision scope: current and deferred
- 12 Vena No phone app RecognisedPhone appDocumentedFree plan 5.6
- 13 Oracle PeopleSoft Campus Solutions Financial Aid No phone app RecognisedPhone appDocumentedFree plan 5.5 Accounting standards: bothProvision scope: current and deferredTax forecasting: Yes
- 14 CCH Tagetik No phone app RecognisedPhone appDocumentedFree plan 5.4
- 15 ONESOURCE Tax Provision No phone app RecognisedPhone appDocumentedFree plan 5.3 Accounting standards: bothProvision scope: current and deferred
- 16 Oracle Cloud EPM Tax Reporting No phone app RecognisedPhone appDocumentedFree plan 5.2 Accounting standards: bothProvision scope: current and deferredTax forecasting: Yes
- 17 Oracle Hyperion Tax Provision No phone app RecognisedPhone appDocumentedFree plan 5.2 Accounting standards: bothProvision scope: current and deferredTax forecasting: Yes
- 18 CCH Integrator Indirect Tax No phone app RecognisedPhone appDocumentedFree plan 5.1
- 19 Taxstream ProVision No phone app RecognisedPhone appDocumentedFree plan 4.9
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which tax provision software is ranked first on Samsung Mobile US Press?
OneStream is ranked #1 of 19 with a score of 7.4. Kleos is second and Flowie third.
How many of these have a free plan?
1 of the 19 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Flowie has the lowest first paid tier we found: €12/mo.
How is this list ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation. Paid placements never change a rank.