Eight tools, most of them with a posted price, that turn a client's 1040 into a plan the client can see the savings in. Holistiplan's OCR reads the return into a tax report for $749 a year on the Basic Tax tier; Tax Planner Pro, built by a CPA for solo CPAs and advisors, starts at $19 a month with Nova, its AI planning agent, on the $49 Max AI plan; TaxPlanIQ's jAIne flags strategies from bulk-uploaded returns at $397 a month; Instead's platform is free with AI agent credits from $30; and Intuit Tax Advisor comes at no additional cost with ProConnect Tax or Lacerte. CCH Axcess iQ predicts which clients a tax-law change affects and drafts the letter.
Two tools cover a narrower job well: TaxRock monitors clients' IRS accounts, decodes notices and lets Rocky, its AI assistant, explain what to do, priced per taxpayer for professionals; TaxTrex documents R&D credit claims for Swanson Reed review, free for accountants. Planning is seasonal, so each listing's note says what you get before year-end and what carries into the return.
Quick answers
How much does AI tax planning tool software cost for an accounting firm?
6 of the 8 tools post a price; 2 are quote-based (priced to your business after a demo). Among the 2 with a flat monthly price, the range runs from $19/mo (Tax Planner Pro) to $397/mo (TaxPlanIQ). Priced differently: Holistiplan $749/yr; Instead free plan; Intuit Tax Advisor free plan, then $210/user/yr; TaxTrex free plan, then $375/mo.
Which tax planning and projection tools offer a free trial or a free plan?
Free trial: Holistiplan and Tax Planner Pro. Free plan: Instead and TaxRock. The other 4 start with a demo or a quick signup.
Which tax planning and projection tools fit a solo practitioner?
Holistiplan, Instead, Intuit Tax Advisor, Tax Planner Pro, TaxPlanIQ and TaxRock are listed as a fit for a solo practitioner. The other 2 are built for small and mid-size firms.
Who do these tax planning and projection tools serve: solo practitioners, small CPA firms, bookkeepers, tax offices or CAS practices?
Tools that name the segment on their own site: Solo practitioners 7; Small CPA firms 8; Bookkeeping practices 1; Tax offices 7.
Which tax planning and projection tools work with QuickBooks Online, Xero, Drake, Lacerte, UltraTax, CCH Axcess or your practice software?
Listings that name an integration or platform: CCH Axcess iQ (CCH AnswerConnect); Holistiplan (Jump, Asset-Map); Instead (Google Drive, OneDrive, Box, Dropbox, SmartVault, Karbon); Intuit Tax Advisor (Lacerte); TaxRock (TaxRock API). Integrations change often; confirm with the vendor before you buy.
When were these listings last checked?
On Oct 29, 2026, against each vendor's own site and pricing page. Vendors change plans often; anything a reader or vendor flags is fixed, usually the same day. Corrections: support@aiforaccountingpractices.com.