AI TAX PREPARATION

AI tax preparation, customized to your firm

Generic AI tax tools assume a standard 1040 workflow. CPA firms and corporate tax departments don't work that way. Clarista lets you build AI tax prep that fits your client mix, your review workflow, and your jurisdiction expertise.

What "AI tax preparation" on Clarista actually means

Why generic AI tax tools fall short

Tools like TaxGPT, Blue J, and CCH ProSystem fx AI features are built around standard tax forms. They handle 80% of cases competently. The remaining 20% — multi-state returns with apportionment, K-1 flowdowns, R&D credit calculations, international compliance — is where firms make their money and where generic AI breaks down.

Clarista lets you encode your firm's tax expertise into a custom AI. Your senior partner's review checklist, your jurisdiction-specific knowledge, your client-specific quirks — captured and applied automatically.

What you can build

An AI assistant that reads source documents (W-2s, 1099s, K-1s, brokerage statements), extracts the relevant data, drafts the return, and surfaces the items most likely to need partner review. A tax research assistant trained on your prior years' positions, your jurisdiction's recent guidance, and your firm's risk tolerance.

Everything runs on your data. Client information never leaves your perimeter. Every AI decision is logged and traceable for audit defense.

Key capabilities

1

Source-doc extraction

Reads W-2, 1099, K-1, brokerage, partnership returns. Outputs clean structured data.

2

Return drafting

Drafts federal + state returns with line-item explanations. Reviewer sees AI's reasoning.

3

Multi-jurisdiction

Handles apportionment, throwback rules, jurisdiction-specific credits.

4

Audit defense trail

Every position taken is logged with citation and reasoning. Defensible to auditors.

5

Your tax library

Trained on your firm's prior returns, positions, and senior reviewer feedback.

6

Compliance attestation

SOC 2, IRS Pub. 4557 alignment, state Board of Accountancy requirements supported.

What teams build with Clarista for ai tax preparation

Individual tax prep (1040)

Source documents in, draft return out. Partner reviews exceptions only.

Corporate tax (1120, 1120-S)

Book-to-tax adjustments, M-1/M-3 reconciliation, multi-state apportionment.

Partnership returns (1065)

K-1 generation with capital account tracking, special allocations.

R&D tax credit calculation

Identifies qualifying expenses from project documents and time tracking.

How AI tax preparation on Clarista compares

Versus traditional approaches — off-the-shelf SaaS, AI development agencies, and in-house builds.

FactorOff-the-shelf SaaSCustom build (agency)Clarista platform
Multi-state apportionmentGeneric rules onlyCustom per engagementCodified into platform
Time to first return draftedHours (with manual setup)N/AMinutes once setup done
Client data residencyVendor cloudVariableYour firm's cloud
Cost per return$5-20 SaaSHours of human timeMarginal — platform-included

Build AI tax prep that matches your firm's depth

20-minute demo for tax partners. Bring a sample return or your most painful client scenario. We'll show how it'd run.

Book a demo →

Frequently asked questions

Will AI tax preparation replace tax preparers?

Not in 2026. AI handles the document extraction, line-item drafting, and routine review — partners and senior staff handle judgment calls, complex positions, and client communication. Firms typically see 40-60% productivity gain on routine returns, freeing capacity for higher-margin advisory work.

Can AI tax software handle complex situations like multi-state or international?

On Clarista yes, because you encode the rules your firm uses. Generic AI tax tools struggle here because the rules are jurisdiction- and firm-specific. Your AI is trained on your prior years' multi-state returns and your senior reviewers' positions.

Is client data secure?

Yes. SOC 2 Type II, deploy on your firm's cloud, BYO LLM so model traffic stays in your contracted Anthropic/OpenAI/Bedrock account. No client data flows through Clarista's infrastructure.

How long to set up?

Initial deployment: 1-2 weeks. First return drafted: same day after setup. Full integration with your existing tax software (CCH, Thomson Reuters, Drake) takes 3-6 weeks depending on complexity.