AI agents built specifically for CPA firms. Contra handles production work — preparing, reconciling, classifying, and documenting — so CPAs shift from preparers to reviewers and advisors.
Get in TouchThe pipeline of new CPAs has collapsed. Firms are turning away work — not because demand is soft, but because they don’t have the staff to do it.
Entity tax is getting harder, not simpler. Provisions like §163(j), §199A, and §704(b)/(c) require genuine reasoning — not templates and lookups.
Existing software automates data entry, not judgment. The hard part of accounting — analysis, determinations, documentation — is still manual.
Source documents — K-1s, 1099s, spreadsheets, multi-hundred-page statements — are parsed, classified, and structured automatically. Missing information is flagged immediately.
AI agents apply tax code provisions with explicit reasoning chains. Every determination is grounded in statute, traceable to source documents, and validated against structured schemas.
Workbooks with live formulas are generated — not static numbers. Carry-forwards, limitations, and phase-outs are computed with dollar-level precision.
Automated quality checks run before a human sees the output. Exceptions are flagged with structured rationale. Partners review in a dedicated layer — not the production workspace.
Assumption memos, audit trails, and sign-off records are generated automatically. Every output is IRS Pub 583 compliant and ready for examination.
An adaptive orchestrator coordinates specialized agents across bounded phases. Each agent receives only the context it needs, operates within strict guardrails, and produces validated structured output. The orchestrator decides which phases to run, when to escalate, and how to recover from errors — automatically.
The partner who signs off on the return is the economic buyer. Contra separates production from review with a dedicated layer — partners see only work ready for judgment, with structured exception flags, annotation tools, and sign-off trails. No digging through workpapers to find what needs attention.
Every correction a CPA makes feeds back into versioned, forkable procedures. The platform gets smarter with every engagement — not just for one firm, but across the procedure graph. This is the proprietary dataset that compounds over time.
Every determination, every document reference, every reasoning chain is persisted with structured rationale. Designed for IRS Pub 583 compliance from day one — not retrofitted. When the IRS asks why, the answer is already documented.
Every architectural decision is falsifiable against curated test cases with dollar-level tolerances. We don’t ship features — we ship accuracy.
Organized by client, governed by engagement. Mirrors how firms actually think about their work — not how software engineers think about databases.
Extended thinking produces audit-grade reasoning chains. Every determination shows its work — grounded in statute, traceable to source documents.
Claude Opus for complex reasoning, Sonnet for structured extraction, prompt caching for 10x cost savings. Purpose-matched models at every phase.
Every correction improves the next engagement. Versioned procedures create a proprietary quality dataset that grows with usage.
Starting with the hardest problems — §163(j), §199A, §704(b)/(c) — where reasoning quality matters most and no competitor has proven accuracy.