Short answer. It depends on the claim. A small, clean claim with good records can be reasonable to document in-house. A larger claim, a first-time claim, or a contractor-heavy one is where a provider usually pays off, especially now that Form 6765 Section G requires per-component detail starting tax year 2026. Match the effort to the risk.
In-house versus hiring out
The tradeoff is time and risk, not just cost.
| Factor | Doing it in-house | Hiring a provider |
|---|---|---|
| Cost | No fee, but real staff time, often from the engineers themselves | A fee, but the documentation burden moves off your team |
| Best fit | A small, clear claim with good records | Larger or first-time claims, and audit defense |
| Risk | You carry the substantiation risk if the records are thin | Quality varies, so check the substantiation rigor |
| Winner / best for | Small, clean, low-risk claims | Larger, first-time, or contractor-heavy claims, especially under Section G |
What Section G changed
The mandatory schedule raised the bar for everyone.
Starting tax year 2026, Form 6765 Section G requires per-business-component detail that a loose, spreadsheet-and-estimate study does not produce. The documentation bar is higher than it was, in-house or not.
That shift is why more companies that used to do it in-house now want a real audit trail behind each component.
Matching effort to risk
There is no single right answer, only a right fit.
A small claim with clean records and low audit exposure can be reasonable to do in-house. A six-figure claim, a first claim, or a contractor-heavy one is where rigor and an outside perspective earn their keep.
Whichever way you go, the test is the same: would the documentation hold up if an examiner asked? If you are not sure, that is the signal to get help.
Related references
What a defensible study has to produce either way:
Sources
Every claim on this page traces to a primary authority. Each source below is independent and verifiable.
- Treas. Reg. § 1.41-4, recordkeeping and substantiation of qualified research - Cornell Law School, Legal Information Institute
- 26 U.S.C. § 41(d), the four-part test the documentation supports - Cornell Law School, Legal Information Institute
- IRS, Instructions for Form 6765 - Internal Revenue Service
Get documentation built to survive an exam
R&D Binder is one kind of provider: documentation-only, GitHub-derived, fixed-fee. It is not the only option, and for a small claim, in-house may be fine. The point is to match the effort to the risk.