IRS Form 6765

Last reviewed October 12, 2026

IRS Form 6765, Credit for Increasing Research Activities, is the tax form used to claim the federal R&D tax credit under IRC Section 41. It is filed as an attachment to your federal income tax return.

What the form does

Form 6765 calculates your R&D tax credit by reporting your qualified research expenses (QREs) and applying one of two credit computation methods. It also handles elections such as the reduced credit election and the qualified small business payroll tax offset.

Sections of the form

Section A — Regular Research Credit

This section computes the credit using the Regular Research Credit (RRC) method under IRC Section 41(a). It requires:

• Current-year qualified research expenses (wages, supplies, contract research)
• A base amount derived from the taxpayer's fixed-base percentage and average gross receipts
• The credit rate applied to the excess of current QREs over the base amount

The Regular Credit method can produce a larger credit for companies with extensive historical records showing a low ratio of R&D spending to gross receipts.

Section B — Alternative Simplified Credit

This section computes the credit using the Alternative Simplified Credit (ASC) method under IRC Section 41(c)(5). It requires:

• Current-year qualified research expenses
• Average QREs for the three preceding tax years
• The applicable ASC rate

The ASC method is generally simpler and is often used by companies that lack detailed records for the Regular Credit's fixed-base percentage calculation.

Section C — Current year credit

This section combines the results of Section A or B with any adjustments, elections, and carryforward amounts to determine the current-year credit available.

Section D — Qualified small business payroll tax election

Companies meeting the qualified small business criteria under IRC Section 41(h) use this section to elect the payroll tax offset, applying the credit against employer payroll taxes instead of income taxes. See Payroll Tax Offset for eligibility details.

Section G — Business component detail

Section G requires project-level information for each business component claimed. For each project, the form asks for:

• A description of the business component and the research activity performed
• The type of information sought to be discovered (new or improved function, performance, reliability, or quality)
• Whether uncertainty existed about capability, method, or design
• Whether a process of experimentation was conducted
• The total qualified employee wage expenses, supply expenses, and contract research expenses allocable to that business component

This section formalizes information that IRS examiners previously requested separately during audits. It must be completed for each business component for which the credit is claimed.

TaxCredit4U populates Section G automatically from the project and expense data you enter during the claim process.

What TaxCredit4U produces

When you complete a claim through TaxCredit4U, the platform generates a pre-filled Form 6765 with:

• All QRE line items populated from your entered data
• Both credit methods calculated, with the larger credit identified
• Applicable elections marked based on your situation

The form is generated as a PDF ready to provide to your accountant or tax preparer for inclusion with your federal return.

Important notes

• Form 6765 does not stand alone — it must be attached to your income tax return (Form 1120, 1120-S, 1065, or 1040 Schedule C, depending on your entity type)
• The form and its instructions are updated periodically by the IRS — always verify you are using the version applicable to your tax year
• TaxCredit4U generates the form for informational purposes; your tax preparer is responsible for reviewing and filing it

Frequently asked questions

What is Form 6765?

Form 6765, Credit for Increasing Research Activities, is the IRS form used to calculate and claim the federal R&D tax credit. It is filed as part of your annual income tax return.

Do I need to file Form 6765 every year?

You need to file Form 6765 for each tax year in which you are claiming the R&D credit. If you are amending prior-year returns to claim missed credits, you file a Form 6765 for each amended year.

Does TaxCredit4U generate Form 6765?

Yes. TaxCredit4U generates a pre-filled Form 6765 with all line items calculated based on your qualified research expenses. The form is ready to include with your tax return filing.