Filed
AI tax software that reads source documents and catches errors in returns
About Filed
Filed runs a second-pass AI audit over completed corporate tax returns, reading source documents against the finished return to catch missed reliefs before you file. It does not prepare the return from scratch. Feed it the financials and the draft, and it flags unclaimed R&D tax credits, overlooked capital allowances, and sector-specific reliefs that got missed during preparation. It connects directly to QuickBooks, Xero, Sage, and Excel, so pulling in the underlying data does not require manual re-entry. The tool earns its keep at mid-size firms handling clients in manufacturing, technology, or any sector with genuine R&D or capital-intensive expenditure. If your book of business runs mostly on straightforward corporate filings or individual 1040s with standard deductions, Filed adds little. The AI needs complexity to find savings, and simple returns offer none. Pricing is tied to identified savings, which aligns incentives but creates real cost unpredictability. If Filed surfaces a £50,000 R&D credit your preparer missed, the platform fee on that finding can be substantial. Budget accordingly before onboarding clients with large potential reliefs. Data quality also constrains performance — incomplete or inconsistent underlying records produce weaker output regardless of what the AI is capable of.
Best for
Tax professionals wanting AI to review returns against source documents for errors and savings
Key Features
- AI-powered tax optimization identifies missed deductions and credits
- R&D tax credit calculation and optimization
- Capital allowance identification and maximization
- Automated tax return review and error detection
Pros & Cons
Pros
- Catches missed R&D tax credits by cross-referencing expenditure patterns in source documents against the draft return, not just running keyword checks.
- Capital allowance identification is systematic — it reviews asset schedules and invoices rather than relying on the preparer to flag qualifying items.
- Direct integrations with QuickBooks, Xero, Sage, and Excel mean source data pulls without manual re-entry or formatting work.
- Runs as a review layer on top of your existing preparation workflow, so firms do not have to replace current software or retrain staff on a new primary tool.
- Reduces exposure to preparer knowledge gaps on sector-specific reliefs — the AI applies consistent rules regardless of who prepared the original return.
- Value-based pricing means zero cost on returns where Filed finds nothing, so low-complexity clients do not inflate your subscription overhead.
Cons
- Percentage-of-savings pricing gets expensive fast when Filed finds a large credit — the cost structure rewards success but can make individual engagements unpredictable to quote.
- Adds no value on straightforward returns; firms whose clients are mostly small businesses with standard deductions will rarely recover the time cost of running the review.
- Not a primary preparation tool — firms still need existing tax prep software, so Filed is an additional line item rather than a replacement.
- Output quality degrades with incomplete source data; clients who provide partial records or inconsistent bookkeeping will see weaker results regardless of the AI's capability.
- No support for individual 1040 preparation workflows — the tool is built for corporate complexity, which limits its usefulness at practices with a heavy consumer tax client base.
- Custom pricing with no published rate card means you cannot estimate cost per engagement without a sales conversation.
Ledger Brief Take
Filed essentially runs a second-pass AI audit over completed tax returns to catch relief opportunities that preparers missed — think of it as spell-check for tax optimization rather than a primary preparation tool. The focus on R&D credits and capital allowances suggests this is built for corporate returns with genuine complexity, not the bread-and-butter individual filings that make up most practices. The value-based pricing model is clever but means you're essentially paying a percentage of what the AI finds, which works great when it discovers a £50k R&D credit but gets expensive fast.
Frequently Asked Questions
Common questions accountants ask about Filed.
How does Filed's pricing actually work?
Filed charges based on a percentage of the tax savings it identifies, not a flat monthly fee. There is no published rate card — pricing is agreed during onboarding. A free trial is available. This model works in your favour on low-complexity returns where Filed finds nothing, but plan for significant fees on returns with large unclaimed R&D credits or capital allowances.
Does Filed integrate with QuickBooks and Xero?
Yes. Filed connects natively to QuickBooks, Xero, Sage, and Excel. The integration pulls source financial data directly into the review workflow without manual re-entry. Data must be reasonably complete in those systems — gaps in the source records produce weaker analysis.
Is Filed a replacement for existing tax preparation software?
No. Filed reviews completed draft returns rather than preparing them from scratch. Your firm still needs its existing tax prep tool. Filed sits on top of that workflow as a second-pass audit layer, checking the finished return against source documents before you file.
What firm size and client type does Filed suit best?
Filed fits mid-size accounting firms whose clients include manufacturers, technology companies, or other capital-intensive businesses with genuine R&D activity. Practices focused on individual returns or small businesses with standard deductions will find limited value — the AI needs complex relief opportunities to justify the review.
How does Filed compare to a manual senior preparer review?
Filed applies consistent rules across every return it reviews and does not get stretched thin during filing season. A senior preparer brings judgment and client context that the AI lacks. The practical use case is running Filed in addition to internal review, not instead of it — particularly for R&D and capital allowance claims where rule sets are detailed and errors are costly.
How does Filed handle data security for client financial records?
Filed does not publish detailed security documentation publicly. Before onboarding, request their data processing agreement, confirm where client data is stored, and verify SOC 2 or equivalent certification. This is non-negotiable for firms with clients in regulated industries or those subject to strict data handling obligations.