Direct answers, no mystery about the what.
What Blanc Tax prepares, how the deterministic engine treats your data, and how to start. For the deep trust story, see Security.
What is Blanc Tax?
Blanc Tax is corporate income tax return preparation for accounting firms. Your general ledger, workbooks, and final trial balance go in; a filing-ready Form 1120, 1120-S, or 1065 comes out, with every schedule, the Schedule M-1 and M-3 book-to-tax reconciliation, Schedule L, and the workpapers behind every figure.
Who is Blanc Tax for?
CPA and accounting firms preparing corporate and partnership returns. One reviewer gets the throughput of a team: the engine computes, a qualified professional reviews and signs.
Which forms does Blanc Tax prepare?
Form 1120 for C corporations, Form 1120-S for S corporations, and Form 1065 for partnerships, each with its supporting schedules, the book-to-tax reconciliation, and workpapers.
Is it accurate? Does AI do the tax math?
The tax math is deterministic: there is no LLM in it, so the same trial balance always produces the same return, and nothing can hallucinate a number. Every figure traces to a journal entry and a workpaper, defensible under IRS examination.
What happens to my clients' data?
Zero data is sent to third-party LLMs and zero data trains any model, ours or anyone else's. Client books are encrypted and isolated. The full posture is on the security page.
Do I have to migrate off Excel?
No. Blanc Tax is Excel-native: the workbooks and trial balance your firm already maintains are the input. Fully integrated, nothing new to learn.
Does Blanc Tax replace my current tax stack?
It consolidates the patchwork: trial-balance software, workpaper apps, reconciliation tools, and the spreadsheets in between. One platform from trial balance to filing-ready return, no re-keying.
Does it file returns automatically?
No. Nothing files itself. Blanc Tax prepares a filing-ready return; a qualified preparer reviews, approves, and signs every one.
How do I get started or see pricing?
Book a demo. We will run the engine on your own data, show the return and workpapers it produces, and cover pricing for your firm's volume.
Deeper guides: AI tax software, Form 1120 software, 1120-S software, trial balance to Form 1120, Schedule M-1 and M-3, and tax workpaper software.
The fastest answer is a demo on your own data.
Bring a trial balance. Leave with a return and its workpapers.