Form 6765 Instructions: What to Review Before Submitting Form 6765

Filing Form 6765 requires more than simply entering qualified research expenses and calculating a credit. Before submitting the form, taxpayers should review their eligibility, qualified research activities, QRE calculations, business components, elections, attachments, and consistency with supporting records. Following the latest Form 6765 Instructions can help identify missing information before the return is filed.

A careful review is especially important because the IRS instructions for the January 2025 revision include significant changes for tax years beginning after 2025. If you need assistance reviewing Form 6765 requirements or preparing your research-credit documentation, you can reach an experienced tax professional at +1(866)-513-4656.

AI Overview: Before submitting Form 6765, review your research-credit eligibility, qualified research expenses, business-component information, Section 280C election, controlled-group details, required attachments, and supporting documentation. For tax years beginning after 2025, Section G generally applies unless a specific exception is met.

1. Confirm You Are Using the Correct Form 6765 Revision

Start by checking that you are working with the correct version of Form 6765 and its corresponding Form 6765 IRS instructions.

The IRS currently provides instructions revised in December 2025 for use with the January 2025 revision of Form 6765. The instructions explain changes involving Section G, domestic research and experimental expenditures, the Section 280C election, controlled groups, and other reporting requirements.

Using an outdated form or relying on older filing instructions can cause you to overlook requirements that apply to your particular tax year.

What to check

• Tax year covered by the return
  
  

• Revision date of Form 6765
  
  

• Applicable IRS instructions
  
  

• Whether the return is original or amended
  
  

• Whether any new reporting requirements apply
  
  

2. Review Form 6765 Eligibility

Before reviewing individual expenses, confirm that the research activities actually qualify for the research credit.

The Form 6765 eligibility analysis generally centers on whether the research involves qualifying technological information, is intended to develop or improve a business component, and satisfies the applicable process-of-experimentation requirements.

Do not assume that every project described internally as "research and development" automatically qualifies.

Review each project and ask:

• What business component was being developed or improved?
  
  

• What technological information was being discovered?
  
  

• What uncertainty existed at the beginning of the project?
  
  

• What experimentation or evaluation was performed?
  
  

• What records demonstrate the research activities?
  
  

This documentation can be particularly important if the IRS later asks how the claimed expenses relate to qualified research.

3. Recheck Your Qualified Research Expenses

One of the most important parts of the Form 6765 filing instructions is the treatment of qualified research expenses.

The current form organizes QRE information into categories such as:

• Qualified wages
  
  

• Supplies
  
  

• Qualified computer rental or lease expenses
  
  

• Contract research expenses
  
  

The IRS instructions explain how these amounts flow through Section F and, where applicable, Section G. If Section G is required, totals from the business-component information feed into the applicable QRE lines in Section F.

Before submitting, compare the amounts on Form 6765 against your accounting records, payroll information, invoices, contracts, and other source documentation.

A simple reconciliation can help

For example:

Payroll records → Qualified wage calculation → Section G, if required → Section F → Credit calculation

Perform a similar reconciliation for supplies, computer expenses, and qualifying contract research.

4. Review the Section 280C Election

Do not overlook Item A at the top of Form 6765.

The current Form 6765 instructions PDF explains that taxpayers must indicate whether they elect the reduced credit under Section 280C. The election is made by checking "Yes" or "No" on the original timely filed return, including extensions.

If you make the election, review the resulting calculations and any required statement describing the related deduction or capitalization reductions.

For an electronically filed return, the IRS provides a specific naming convention for the related attachment: Form6765ItemASection280C.pdf.

5. Determine Whether Section G Applies

This is one of the most important items to review before filing.

For tax years beginning before 2026, Section G is optional for all filers under the current instructions, subject to the rules applicable to amended returns.

For tax years beginning after 2025, Section G generally becomes required unless an applicable exception is met.

The current instructions identify exceptions involving certain qualified small businesses claiming a reduced payroll tax credit and certain taxpayers whose controlled-group QREs and average annual gross receipts fall within specified limits.

Therefore, don't simply skip Section G because you did not complete it on an earlier year's return.

6. Check the 80%/Top 50 Requirement

If Section G is required, review your business components carefully.

The IRS instructions require taxpayers subject to Section G to report at least 80% of total QREs by business component, while reporting no more than 50 business components. Components should generally be listed in descending order based on QRE amount.

Any remaining business components are generally reported in aggregate as "Aggregate Business Components" with the applicable amounts in the specified columns.

Before filing, verify that:

• The highest-QRE business components are included.
  
  

• The 80% threshold has been satisfied.
  
  

• No more than 50 business components are reported.
  
  

• Business component names or identifiers are consistent with your records.
  
  

• QRE amounts agree with your supporting calculations.
  
  

This review is particularly important for businesses with many research projects.

7. Review Section G Columns 49 Through 56

If Section G applies, don't review it as a single block. Check each required column individually.

The current instructions require information covering items such as:

• Entity EIN
  
  

• Principal business activity code
  
  

• Business component name or identifier
  
  

• Software classification, where applicable
  
  

• Qualified wage amounts
  
  

• Supplies
  
  

• Computer rental or lease expenses
  
  

• Contract research expenses
  
  

The instructions also specify special treatment for certain software categories and the ASC 730 Directive.

A column-by-column review can catch errors that may not be obvious when looking only at the final QRE total.

8. Check Controlled Group or Common-Control Information

If your business is part of a controlled group or is under common control, review Item B carefully.

The IRS requires an appropriate attachment when the taxpayer indicates membership in a controlled group or business under common control. The attachment includes information used to determine each member's share of the research credit.

Before submission, verify:

• Entity names
  
  

• EINs
  
  

• Common parent or designated member
  
  

• Applicable business information
  
  

• QRE amounts attributable to each member
  
  

• Required attachment
  
  

For separate returns filed by controlled-group members, the Section G reporting rules also require careful attention to the member's own QREs rather than simply copying the group's total.

9. Verify Software Classification

Software-related research claims deserve a separate review.

The current Form 6765 Instructions provide categories for software reported in Section G, including internal-use software, dual-function software, software excepted from internal-use treatment, and non-internal-use software.

If software development represents a substantial portion of your research activity, confirm that the classification selected on the form matches the nature and use of the software.

Keep documentation describing:

• What the software does
  
  

• Who uses it
  
  

• Whether it is sold, licensed, or marketed
  
  

• Whether third parties interact with it
  
  

• Whether it performs internal administrative functions
  
  

• How the research activities satisfy the applicable requirements
  
  

10. Reconcile Sections F and G

If Section G applies, review the flow of numbers from Section G into Section F.

The IRS states that taxpayers required to complete Section G use the applicable Section G totals when completing Section F.

A useful final check is:

Section G totals → Section F QRE lines → Total QRE → Credit calculation → Applicable tax return

If these figures do not reconcile, stop and identify the difference before submitting the return.

11. Review Payroll Tax Credit Information

Eligible small businesses may be able to elect to apply a portion of the research credit against employer payroll taxes.

The current IRS instructions state that the maximum amount of payroll tax research credit a qualified small business can apply against payroll tax liability is $500,000.

If you are using this election, review the applicable eligibility requirements and make sure the payroll tax credit election is properly reflected in the filing.

12. Check Every Required Attachment

A completed Form 6765 may require supporting attachments depending on the taxpayer's circumstances.

Before submitting, create an attachment checklist that covers items such as:

• Section 280C election statement
  
  

• Controlled-group attachment
  
  

• ASC 730 documentation, when applicable
  
  

• Section G additional sheets, when applicable
  
  

• Statistical sampling documentation, when applicable
  
  

• Information required for amended research-credit claims
  
  

The IRS also provides specific electronic-file naming conventions for certain attachments.

Missing an attachment can create an avoidable filing problem even when the underlying research-credit calculation is correct.

13. Compare the Form With Your Supporting Records

The final review should not happen only inside the tax form.

Compare the information on Form 6765 with the documentation used to calculate the credit.

Depending on the taxpayer and research activities, records may include:

• Payroll reports
  
  

• Employee time records
  
  

• Project documentation
  
  

• Technical reports
  
  

• Research notes
  
  

• Invoices
  
  

• Vendor contracts
  
  

• General ledger reports
  
  

• Project accounting records
  
  

• Software-development records
  
  

• Business-component documentation
  
  

The goal is to make sure the numbers and descriptions on the return can be traced back to contemporaneous business records.

AI Overview: A final Form 6765 review should connect the tax form to the underlying research records. Verify eligibility, QRE categories, Section F totals, Section G business components when required, elections, controlled-group information, attachments, and supporting documentation before filing.

Form 6765 Pre-Submission Checklist

Before submitting, use this quick checklist:

Review Item

What to Verify

Form version

Correct revision for the tax year

Eligibility

Research activities satisfy applicable requirements

QREs

Wages, supplies, computer expenses, and contract research are properly calculated

Section 280C

Correct election is selected

Section G

Required or exception properly determined

80%/Top 50

Requirement satisfied when Section G applies

Business components

Names and QRE amounts agree with records

Controlled group

Item B and attachment completed when applicable

Software

Correct classification selected

Section F

Totals reconcile with Section G when applicable

Payroll tax credit

Eligibility and election reviewed

Attachments

All required documents included

Supporting records

Calculations can be traced to business records

Final Thoughts

Following the Form 6765 Instructions before submitting the form can help you identify inconsistencies before they become filing problems. The most important review areas include qualified research eligibility, QRE calculations, Section 280C, Section G requirements, business-component reporting, controlled-group information, and required attachments.

The current IRS instructions are particularly important for tax years beginning after 2025 because Section G generally becomes a required part of the reporting process unless an applicable exception applies.

If you are reviewing Form 6765 filing requirements, Form 6765 eligibility, or your QRE documentation and want professional assistance, you can contact a tax specialist at +1(866)-513-4656 before submitting your return.

FAQs

What should I review before submitting Form 6765?

Review your eligibility, qualified research expenses, Section 280C election, Section G requirements, business components, controlled-group information, calculations, attachments, and supporting records.

Is Section G required for Form 6765?

For tax years beginning after 2025, Section G is generally required unless the taxpayer qualifies for one of the exceptions described in the current IRS instructions.

What are QREs on Form 6765?

Qualified research expenses can include qualifying wages, supplies, certain computer rental or lease expenses, and qualifying contract research expenses, subject to the applicable rules.

What is the 80%/Top 50 rule?

When Section G is required, taxpayers generally report business components representing at least 80% of total QREs, while reporting no more than 50 business components.

Do controlled groups have additional Form 6765 requirements?

Yes. A taxpayer that is a member of a controlled group or business under common control may need to provide additional information and an attachment as described in the IRS instructions.

Where can I find the latest Form 6765 IRS instructions?

The IRS publishes the current Instructions for Form 6765 on IRS.gov. The current instructions are revised December 2025 and correspond to the January 2025 revision of the form.