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Form 6765 Research Credit: What You Must Know Before Filing for TY 2025 and TY 2026
Section G of Form 6765 will be optional for 2025 but required for many filers in 2026—while IRS extends feedback period to March 2026. Here's how to prepare so you can claim your research credit without headaches.
By NomadicTax Research Team • 5-8 min read • November 19, 2025
## Overview of recent developments
The IRS is extending the comment period for **draft instructions for Form 6765**, the Credit for Increasing Research Activities. This includes delaying the mandatory requirement for Section G reporting for certain filers until **tax year 2026 (processing year 2027)**. ([irs.gov](https://www.irs.gov/newsroom/irs-extends-the-period-for-feedback-on-form-6765?utm_source=openai))
### What’s happening for 2025
- Section G is optional **for all filers** in tax year 2025. ([irs.gov](https://www.irs.gov/newsroom/irs-extends-the-period-for-feedback-on-form-6765?utm_source=openai))
- IRS extended feedback period for the draft instructions to **March 31, 2026** to accommodate stakeholder input. ([irs.gov](https://www.irs.gov/newsroom/irs-extends-the-period-for-feedback-on-form-6765?utm_source=openai))
- A **transition period** allows taxpayers until **January 10, 2027** to perfect research credit claims for refund, when claim submission requirements are met. ([irs.gov](https://www.irs.gov/newsroom/irs-extends-the-period-for-feedback-on-form-6765?utm_source=openai))
### What will change in 2026 and beyond
- Section G becomes mandatory for filers who exceed certain thresholds: qualified small businesses, or those with more than **$1.5 million in qualified research expenses (QREs)** and **$50 million in gross receipts** under control-group rules. ([irs.gov](https://www.irs.gov/newsroom/irs-extends-the-period-for-feedback-on-form-6765?utm_source=openai))
## How to use this period effectively
### For research-intensive businesses or labs
- Prepare your tracking systems now for business component detail and research component separation—these will matter under Section G.
- Assess whether you will exceed thresholds in TY 2026 so you can begin capturing required data.
### For smaller businesses / startups
- If your QREs or gross receipts are below threshold, you’ll likely remain optional in 2026, but capturing extra documentation now creates optionality later.
- Consider consulting with a tax professional to ensure transition deadlines and refund claims are properly handled.
### What makes a “perfected” claim under the transition period
To take advantage of the claim amendment/refund window, you must:
- Identify all business components tied to research activities;
- Detail research activities per component;
- Provide totals for qualified wages, supplies, contract research expenses.
- Use Form 6765 or equivalent documentation. ([irs.gov](https://www.irs.gov/newsroom/irs-extends-the-period-for-feedback-on-form-6765?utm_source=openai))
## Practical example
ThermoTech, a startup, anticipates exceeding $1.8 million in research expenses in 2026. They’ve historically lumped all R&D together. Using the 2025 optional period, they begin tracking costs by project and department (business components). This lets them be ready for the mandatory Section G in 2026. Meanwhile, a smaller firm, GreenFarms, spends about $800,000 on R&D. For them, Section G will remain optional in 2026—but documenting whether they exceed thresholds remains valuable.
## Summary of actionable steps
- Begin capturing business component details now—even before they’re required;
- Take advantage of the extended feedback period (submit comments by March 31, 2026);
- Make sure your internal reporting aligns with IRS instructions once finalized.
- Use the transition period to correct or amend research credit claims by January 10, 2027, if necessary.
Understanding these developments puts you ahead—so when the mandatory reporting kicks in, you’re ready without scrambling.