What Is Form 6765, and What Changed for 2026?

TL;DR

Form 6765 is the form that carries the federal R&D tax credit onto your return. For tax years beginning after 2025, a section of it called Section G stops being optional. Section G makes you report the credit project by project instead of as one company-wide number. Almost everything it asks for is either written down while the work happens or reconstructed badly two years later.

Key Takeaways

• Section G is optional for tax years beginning before 2026 and required for tax years beginning after 2025. For a calendar-year business, that is the return filed in 2027 for the work being done right now.
• Two exemptions exist. The second one carries three conditions, not two, and one of them is that you are filing an original return.
• You list business components in descending order by expense until you have covered at least 80% of total qualified research expenses, or until you hit 50 components. Whatever falls outside that gets reported in aggregate, not dropped.
• Wages get split three ways on every component: direct research, direct supervision, and direct support.
• The one field everybody dreads, describing what you were trying to find out, is required on amended refund claims and not on timely-filed original returns.

What is Form 6765?

Form 6765, "Credit for Increasing Research Activities," is how the federal R&D tax credit reaches your return.

It does four jobs. It figures the credit under either the regular method or the alternative simplified credit. It carries the Section 280C election if you want a reduced credit instead of a reduced deduction. It lets a qualified small business elect to apply up to $500,000 of the credit against payroll taxes rather than income tax. And, as of the December 2025 instructions, it asks you to show your work.

That last part is new, and it is the whole story.

For most of the form's life you reported qualified research expenses as totals. Wages in one box, supplies in another, contract research in a third, all of it summed across the company. Section G takes those totals apart.

What is Section G, and when does it become required?

Section G makes you report the credit at the business component level.

A business component is the specific thing you were building: a product, a process, software, a technique, a formula, or an invention. The credit has always lived there. Section 41 has always tested each component on its own. The form simply never made you prove it, so plenty of credits got figured as a percentage of engineering payroll and nobody had to explain the arithmetic.

The instructions set the timing plainly. "For tax years beginning before 2026, Section G will be optional for all filers." And then: "For tax years beginning after 2025, Section G will be required," subject to the guidelines the instructions lay out under the Business Component Information heading.

For a calendar-year filer that means your first mandatory Section G rides on the 2026 return, filed in 2027. Which sounds comfortably distant until you notice that everything Section G asks about is happening in your shop this year, being done by people who will not remember the details in eighteen months.

Who is exempt from Section G?

Two groups. The instructions say Section G is required unless:

You are a qualified small business, as defined under section 41(h)(3), and you checked the box to claim a reduced payroll tax credit; or

Your total QREs determined at the controlled group level on line 48 are equal to or less than $1.5 million; your average annual gross receipts for the prior three tax years are equal to or less than $50 million, as determined under section 448(c)(3) (without regard to subparagraph 448(c)(3)(A) thereof); and you are reporting a research credit on an original return.

The short summaries circulating about that second exemption get it wrong in three places.

The $1.5 million is measured at the controlled group level. Run four LLCs under common control and you add them up.

The $50 million is not a single year. It is a three-year average of gross receipts, which means one great year does not disqualify you by itself, and one thin year will not rescue you either.

Then there is the condition almost nobody quotes. The exemption applies only on an original return. File an amended claim and you are in Section G regardless of size.

What does Section G ask for on each component?

Twelve columns, in this order.

The first two identify who did the work: the EIN of the controlled group member that conducted the research on that component, and that member's principal business activity code.

Then the component itself. Its name or a unique alphanumeric identifier. Its type, which the form limits to Product, Process, or All Others. If software is involved, a software designation, and the choices there are internal use software, dual function software, non-internal use software, or excepted from internal use software treatment. Software does not get its own component type, which surprises people. It lands under All Others and gets described in the software column.

Then the sentence everybody is worried about: "Describe the information sought to be discovered."

Then the money, in seven columns. Direct research wages. Direct supervision wages. Direct support wages. Total qualified wages. Cost of supplies. Rental or lease cost of computers. The applicable amount of contract research expenses.

That three-way wage split is the part that will hurt if your time tracking is a single bucket called "engineering." The form wants to know how much of a component's labor was people doing the research, how much was people directing it, and how much was people supporting it. Those are three different answers and you cannot derive them from a payroll register after the fact.

One piece of relief worth knowing. That "information sought to be discovered" field is not required on a timely-filed original return. It is required on amended refund claims. If you file on time, you describe the component and report the expenses, and you do not have to write the narrative. That distinction is real and it is not widely reported, so if an advisor tells you every 2026 return needs a written research narrative, ask them to show you where.

How many components do you actually have to list?

Not all of them, usually. The instructions set a floor and a ceiling.

You report "a minimum of 80% of total QREs or a maximum of 50 business components," and "business components should be listed in descending order by QRE amount." So you sort by cost, start at the top, and keep going until you have covered 80% of your total qualified research expenses or you have written down 50 components, whichever comes first.

What happens to the tail matters more than most summaries admit. The leftovers do not vanish. The instructions say any remaining components "will be reported in aggregate by entering 'Aggregate Business Components' in column 49(c) and the applicable aggregate amounts for columns 50 through 56," leaving the other columns blank.

Two more requirements sit just outside Section G and catch people. Line 37 asks for your total business component count, meaning all of them, not the ones you listed. And line 38 asks for officers' wages included in the credit.

What this means for the work you are doing right now

Filling out the form takes an afternoon. Having the answers to fill in takes a year.

Section G is, functionally, the outline of an information document request moved to the front of the process. It asks at filing for roughly what an examiner would have asked for later. That is a real change in posture even though the underlying law did not move: the four-part test in Section 41 is the same test it was, and which activities qualify in the first place has not changed.

What changed is that the credit now arrives at the IRS already itemized. If you want a sense of what an examiner does with that documentation, the short version is that they test each component separately, which is exactly the shape Section G puts your return in.

There is also a long tail here that people miss. Credits get examined in the year they are used, not only the year they are earned, so credits you cannot use this year keep their documentation obligations alive for as long as the carryforward runs. Section G records built in 2026 are still doing work in 2031.

If you want the fuller conversation on how the credit actually applies to businesses that do not look like laboratories, I covered it with Brian Broussard on this episode of the podcast.

What to change before your 2026 year closes

Four things, in rough order of how much they will save you.

Start tracking labor by project, and split it three ways. Direct research, direct supervision, direct support. Even a rough weekly allocation beats a reconstruction. This is the single input Section G needs that almost nobody currently produces.

Name your components and keep the names stable. Section G wants a name or a unique identifier per component and it wants your list sorted by cost. If engineering calls a project one thing and accounting calls it another, somebody spends a week reconciling before anything gets filed.

Capture the technical question at the start of each project. You may not have to write the narrative on a timely-filed original return, but you will want it if you ever amend, and you will want it if the return is examined. A paragraph written the week the work started is worth more than a page written three years later.

Check whether the exemption actually covers you. Controlled group totals, three-year average gross receipts, original return only. Businesses that assume they are under the line and are not tend to find out late.

Frequently Asked Questions

When does Section G of Form 6765 become mandatory?

Section G is optional for tax years beginning before 2026 and required for tax years beginning after 2025. For a calendar-year business, the first mandatory Section G is on the 2026 return.

Am I exempt from Section G if my business is small?

Possibly. Section G is not required if you are a qualified small business under section 41(h)(3) that checked the box for the reduced payroll tax credit. It is also not required if your total qualified research expenses at the controlled group level are $1.5 million or less, your average annual gross receipts for the prior three tax years are $50 million or less under section 448(c)(3), and you are reporting the credit on an original return. All three conditions in that second test have to be met.

Do I have to list every project on Section G?

No. You list business components in descending order by qualified research expense until you have covered at least 80% of total qualified research expenses or reached 50 components, whichever comes first. Anything remaining is reported in aggregate rather than left off.

Does Section G require me to write a narrative for every project?

Not on a timely-filed original return. The column that asks you to describe the information sought to be discovered is required on amended refund claims, not on returns filed on time.

How do wages get reported on Section G?

Wages are split three ways for each business component: direct research wages, direct supervision wages, and direct support wages, with a total qualified wages column alongside them. Supplies, computer rental or lease costs, and contract research expenses are reported in separate columns.

Does Section G change whether my work qualifies for the credit?

No. The four-part test under Section 41 is unchanged. Section G changes how you report a credit you already qualify for, not whether you qualify.

Let's look at your situation

The question is not whether Section G applies to you. It is whether the records your team is creating this year will answer it.

I offer a no-cost analysis, delivered through CSSI. No obligation, no pitch, and nothing to gather before we talk. If a study will not pay for itself, I will tell you that on the call.

Grab a time at calendly.com/david-wiener/cs, or call 770-224-8504 and press option two. If you would rather read first, the R&D credit study page lays out what the engagement involves.

Sources

• IRS, Instructions for Form 6765, Credit for Increasing Research Activities (Rev. December 2025). irs.gov/pub/irs-pdf/i6765.pdf
• IRS, Form 6765, Credit for Increasing Research Activities (Rev. December 2024). irs.gov/pub/irs-pdf/f6765.pdf
• Internal Revenue Code sections 41(d) (four-part test), 41(h)(3) (qualified small business), 280C (reduced credit election), and 448(c)(3) (gross receipts test).

This article is educational and is not tax advice. Your situation needs a professional who can look at your actual returns.