Add $100K+ of runway ✦ back to your SaaS. Every year.
Section41 is the AI-powered, CPA-attested execution of 26 U.S.C. §41 — the federal research credit, purpose-built for US SaaS. We claim it, file it, and defend it for life. You keep shipping.
Your R&D credit snapshot
Trusted by companies like
The R&D credit trap most SaaS founders fall into
You think you don't qualify
If you employ US engineers building software under technical uncertainty — you almost certainly do.
Your CPA isn't an R&D specialist
Generalist CPAs skip §41 because it's complex. You leave six to seven figures on the table every year.
§174 made it worse, 2022–2024
The old capitalization rule buried credits under confusion. You may be owed a retroactive refund. July 6, 2026 is the deadline.
Everything you need to claim your credit, defensibly
AI + CPA pipeline, not one or the other
We read your engineering artifacts — commits, PRs, Linear tickets. A licensed CPA reviews and signs every claim. No shortcuts.
Every activity mapped to §41's four-part test
Permitted purpose, technological in nature, elimination of uncertainty, process of experimentation — line-by-line, with citation trail.
The Section41 Promise — lifetime audit defense
If the IRS questions your claim, we respond at our cost — for the life of the return. Built into the 20%, no carve-outs.
- Written into your engagement
- No additional fees, ever
- Zero audits lost to date
How we get your credit signed, filed, and defended
Connect your data
Read-only access to GitHub, Linear, and payroll. We ingest only what's needed to substantiate your claim.
AI drafts the claim
Our pipeline maps your engineering activities to §41's four-part test and drafts the Form 6765 package.
CPA signs and files
A licensed CPA reviews every claim, applies their signature, and delivers the return-ready package.
We defend, for life
If the IRS asks questions — this year or ten years from now — we respond. Built into the 20%.
Built for US SaaS companies at every stage
The 2022–2024 §174 lookback
The One Big Beautiful Bill Act (July 2025) opened a one-time window to amend three past tax years. Most SaaS companies qualify for six to seven figures in retroactive cash. Deadline July 6, 2026.
Seed & Series A startups with first-time R&D claims
First-time filings, payroll tax offset setup (up to $500K/year in cash), and a clean substantiation baseline that scales as you grow.
Series B+ teams scaling the credit
Growing credit sizes mean growing audit exposure. We tighten documentation, map new engineering headcount, and coordinate with your in-house tax team.
Bootstrapped & indie founders who want it simple
You're building, not filing paperwork. We handle everything end-to-end so you can focus on your product. 20% contingency — no retainer, no minimums.
Works with the tools your team already uses
Simple pricing. 20% of what we save you.
Estimate
Find out what you qualify for
$0Free
Get my estimateWhat's Included
- ✦AI-assisted credit estimate
- ✦Four-part test pre-screen
- ✦State credit eligibility check
- ✦No obligation to engage
Full executionMost Popular
We file, you get the credit
20% contingency
Engage Section41What's Included
- ✦AI + CPA-signed Form 6765
- ✦Substantiation memo and workbook
- ✦Federal + all eligible state credits
- ✦Lifetime audit defense included
Multi-year
Ongoing credit capture
12% contingency
Talk to usWhat's Included
- ✦Everything in Full execution
- ✦Quarterly payroll offset filings
- ✦Lookback for open tax years
- ✦Dedicated CPA relationship lead
Built for SaaS founders, by tax specialists
Section41 turned our 2023 return into a $240K refund we didn't know we could claim. Their CPA signed every line — no anxiety, no back-and-forth.
Sample Customer
Founder & CEO, Sample SaaS
We'd been filing R&D credits through our bookkeeper for years. Section41 found twice the credit on the same year's data and caught a §174 issue we missed.
Sample Customer
Co-founder, Sample Startup
Read-only GitHub access, a clean four-part test memo, and the whole thing done in eleven days. Exactly what I wanted my CFO to see.
Sample Customer
CTO, Sample Series B
The lifetime audit defense was the closer. Having someone on the hook for the return is a level of accountability no fintech provides.
Sample Customer
CFO, Sample SaaS
Ready to see what 2022–2024 is worth to you?
The §174 lookback window closes July 6, 2026. Most SaaS companies qualify for six to seven figures in retroactive credit — but only until the deadline.