Upload a tax return, P&L, or bank statement. Get a defensible SDE, red-flag screening, and source-cited findings — in under 10 minutes. $149 per deal, not $15,000.
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Saved per deal
Manual due diligence on a single SMB acquisition typically takes 30–80 hours of spreadsheet work. Duey collapses the first pass to under 10 minutes.
Pre-QoE screening cost
A formal Quality of Earnings report runs $5K–$35K and you order it post-LOI. Use Duey to know which deals deserve a QoE — and which to kill in screening.
Red-flag rules
Revenue declines, customer concentration, bank-vs-revenue variance, addback supportability, owner-comp ratios. Every flag links back to its source line.
Three steps. Source citations on every number.
Drop a 1120, 1120-S, 1065, P&L, balance sheet, or bank statement. Scanned PDFs work too — Duey OCRs them with Claude Vision.
Duey extracts every line item, computes SDE with standard and discretionary add-backs, and flags risks against 25+ detection rules. Each finding cites the page and line.
Get a screening memo you can defend to your lender, your investors, or yourself. Override anything you disagree with — you're always the analyst, Duey is the partner.
Different tools for different stages. Use Duey to filter. Use a QoE firm to close.
Duey | Traditional QoE | |
|---|---|---|
| Cost per deal | $149 | $5,000–$35,000 |
| Turnaround | Under 10 minutes | 2–4 weeks |
| When to use | Every deal you screen | Post-LOI, on the deal you intend to close |
| SDE calculation | ||
| Source citations | ||
| CPA accountability | ||
| Bank reconciliation | ||
| Use on every deal |
Stop ordering $15K QoE reports for deals you should have killed in screening.
Tax returns contain SSNs. Bank statements contain account numbers. Duey treats your documents the way you'd treat them yourself.
Duey is a Concentric Lab product. Our founder evaluates SMB acquisitions himself — Duey was the tool he wanted before he built it.
No. Duey is a pre-QoE screening tool. Use it to filter deals before you commit to a $15K QoE on the one you intend to close. The strongest signal we hear from searchers is the cost of QoE on deals they should have killed earlier — Duey solves that.
Every line links to the source page in the document. You can override any value, accept or reject any add-back, and dismiss any red flag. Duey is a partner, not a replacement for your judgment. We tune for high recall on red flags (better to surface a non-issue than miss a real one).
Form 1120, 1120-S, 1065 (with K-1s and 1125-E), Schedule C, P&L statements, balance sheets, bank statements, AR/AP aging reports, contracts, leases, and CIMs. PDFs (native or scanned), Excel, and CSV. Up to 50MB per file.
$149 per deal analysis, or $199–$699/month for unlimited deals depending on tier. Annual plans get 15% off. Every plan starts with a 14-day free pilot — no credit card required.
Yes. Documents are encrypted at rest and in transit, stored behind row-level security so only you can access them, served via signed URLs that expire, and never used to train public models. Disclose responsibly — these are sensitive financials.
Self-funded searchers evaluating $1M–$10M SMB acquisitions. Business brokers screening listings. SBA lenders running underwriting. Advisors and CPAs supporting buy-side clients. If you've ever opened a 1120-S and felt the dread of 60 hours of manual work, Duey is for you.