Latest R&D Tax Credit News: Major Changes from 2025 OBBBA and 2026 Updates

• Understanding Recent R&D Tax Credit Changes
• Understanding the 2025 OBBBA Legislative Changes
• Recent IRS Guidance and Form Updates
• Current Filing Options and Strategic Considerations
• Industry Impact and Market Developments
• Common Implementation Challenges and Solutions
• Conclusion and Next Steps
• Frequently Asked Questions

Understanding Recent R&D Tax Credit Changes

The R&D tax credit landscape shifted dramatically in 2025 with the passage of the One Big Beautiful Bill Act (OBBBA), delivering what many businesses consider a major win for American innovation incentives and broader tax reform efforts designed to incentivize companies investing in domestic research. As we enter 2026, companies must now navigate restored immediate expensing rules, updated IRS reporting requirements, and critical filing deadlines that will directly impact their cash flow, federal revenues, and tax liability for multiple years.

This guide covers the legislative changes enacted through OBBBA, IRS guidance updates including Form 6765 revisions, and strategic filing options for tax years 2022 through 2026. The content targets business owners, tax professionals, and R&D-focused companies seeking clarity on how recent developments affect their qualified research expenditures and overall tax treatment under evolving tax policy standards.

The most significant R&D tax credit news from the past 18 months: The OBBBA restored immediate deduction of domestic research and development expenses, reversing the burdensome five year amortization requirement imposed by the Tax Cuts and Jobs Act. These key changes allow small businesses meeting gross receipts thresholds to retroactively amend returns for 2022-2024, while all taxpayers benefit from immediate expensing starting with tax years beginning after December 31, 2024.

Understanding the 2025 OBBBA Legislative Changes

The One Big Beautiful Bill Act, enacted July 4, 2025, as Public Law 119-21, created Internal Revenue Code Section 174A to restore immediate expensing of domestic research and development expenses. This legislation represents one of the most consequential changes to the tax code affecting American businesses conducting qualified research activities since the original Tax Cuts and Jobs Act modifications in 2017.

Restoration of Immediate R&D Expense Deduction

Section 174A now permits businesses to fully deduct domestic research costs in the same year they are paid or incurred, eliminating the five year amortization requirement that had created significant cash flow challenges for many businesses. Under the previous TCJA rules, companies were forced to capitalize and amortize domestic R&D expenses over five years, effectively delaying tax benefits that had historically been available immediately.

The restored immediate deduction applies to all qualified research expenditures classified as domestic under the Internal Revenue Code. This change allows most businesses to immediately deduct wages, supplies, and contract research expenses related to qualified research activities conducted within the United States. Foreign R&D expenses, however, remain subject to 15-year amortization under the amended Section 174 framework, often creating additional expenses for multinational businesses.

Retroactive Relief for Small Businesses

Qualified small businesses meeting specific criteria can elect to retroactively apply Section 174A to domestic R&D expenditures for tax years 2022 through 2024. Eligibility requires average annual gross receipts of $31 million or less, calculated using the three taxable years preceding the election year. Additionally, businesses must not qualify as tax shelters under IRC Section 448(d)(3), meaning they cannot allocate more than 35% of losses to passive owners.

Eligible small businesses must file amended returns or make required accounting method changes by July 6, 2026, or the applicable refund claim deadline for each respective tax year, whichever comes earlier. This retroactive relief allows qualifying companies to recover deductions previously spread across multiple years under the TCJA amortization requirement, potentially generating substantial refundable credits or reduced income tax liability that may be carried forward where applicable.

These legislative changes established the framework that IRS guidance now implements through updated forms and procedures.

Recent IRS Guidance and Form Updates

Following the OBBBA’s passage, the IRS released comprehensive guidance throughout 2025 and into 2026 to clarify implementation of the new research expense rules. These updates affect how businesses document, calculate, and report their R&D tax credit claims.

Form 6765 Updates for 2025 Tax Year

The IRS released a revised Form 6765 (December 2024 revision) introducing Section G – Business Component Information, which requires detailed breakdowns of research costs by business component. This new section captures specific data on qualified employee wages, supplies, contract research expenses, and officer wages associated with each existing business component or development activity.

For tax year 2025 returns, Section G remains optional for all filers, providing businesses time to establish documentation systems before mandatory reporting requirements begin. However, taxpayers claiming the R D tax credit must still complete all other sections accurately, including proper identification of qualified research activities and calculation of credit amounts using either the regular credit method or alternative simplified credit approach.

Extended Deadlines and Transition Periods

Revenue Procedure Updates Through 2025

Revenue Procedure 2025-28, issued in late August 2025, provides detailed guidance on elections and implementation mechanics under Section 174A. This guidance addresses accounting method changes, treatment of remaining unamortized domestic R&D costs from 2022-2024, and procedures for making or revoking the reduced credit election under Section 280C(c).

Key takeaways from recent IRS guidance include clarity on coordination between immediate deduction and the research credit, proper election procedures for small businesses seeking retroactive relief, and documentation standards that will become increasingly important as Section G reporting becomes mandatory.

Current Filing Options and Strategic Considerations

With the OBBBA framework established and IRS guidance clarifying implementation, businesses now face important decisions about how to handle accumulated research and development expenses from the TCJA amortization period.

Three Primary Approaches for 2022-2024 R&D Expenses

Businesses should evaluate their circumstances against multiple filing strategies, each carrying distinct advantages and administrative burden levels:

Option 1: Amend returns for full retroactive deduction Available exclusively to eligible small businesses with average annual gross receipts under $31 million, this approach requires filing amended returns for 2022, 2023, and 2024 to immediately deduct previously capitalized domestic R&D expenses. While potentially generating the largest refundable credits, this option requires gathering historical documentation and meeting the July 6, 2026 deadline.

Option 2: 1-year accelerated deduction in 2025 All taxpayers may claim remaining unamortized domestic research expenses fully in their 2025 tax year return. This catch-up approach eliminates the need for amended filings while providing immediate cash flow benefits for businesses with sufficient taxable income to absorb the deduction.

Option 3: 2-year accelerated deduction across 2025-2026 Taxpayers may spread remaining unamortized domestic R&D from 2022-2024 ratably over 2025 and 2026 tax years. This approach smooths the deduction’s impact on taxable income and may benefit businesses concerned about creating excessive losses or triggering other tax code limitations.

Option 4: Standard amortization continuation Businesses may elect to continue amortizing under previous methods or choose the Section 174A(c) capitalization election for new costs. The Section 59(e) election permits 10-year ratable deduction. These options may benefit taxpayers in states that haven’t conformed to OBBBA changes or those managing specific tax planning considerations.

Cash Flow and Tax Planning Implications

Factor	Amended Returns	1-Year Catch-up	2-Year Spread	Continue Amortization
Immediate Cash Benefit	Highest (refunds)	High	Moderate	Lowest
Administrative Burden	Significant	Low	Low	Minimal
Small Business Only	Yes	No	No	No
Deadline Pressure	July 2026	2025 Filing	2025-2026 Filing	None
NOL Risk	Moderate	Higher	Lower	Lowest

Businesses should model their specific circumstances carefully. Companies with substantial taxable income in 2025 may prefer accelerated deductions, while those managing net operating losses, interest limitations, or alternative minimum tax exposure may benefit from spreading deductions across multiple years. The reduced credit election under Section 280C(c) versus claiming the full R D credit requires separate analysis based on relative value of deductions versus credit amounts.

Industry Impact and Market Developments

The OBBBA changes and IRS implementation have created measurable effects across American businesses engaged in research and development activities.

Small Business Relief Outcomes

Many businesses qualifying for retroactive relief have already begun filing amended returns to recover previously deferred deductions. Companies that had delayed R&D investments due to cash flow constraints from five year amortization are now reconsidering expansion of qualified research activities. The restored immediate expensing particularly benefits medium sized businesses and startups that rely heavily on research and development expenses as core business expenses.

Tax professionals report significant interest from clients in software development, manufacturing, and engineering sectors seeking to maximize both immediate deduction benefits and the ongoing R D tax credit. The payroll tax credit option remains available for eligible small businesses, allowing qualified small businesses with limited income tax liability to offset payroll taxes including Medicare taxes.

State-Level Developments

Michigan enacted significant state-level tax incentives through January 2025 legislation. Governor Whitmer signed House Bills 5100 and 5101, establishing both a Michigan R&D tax credit and an Innovation Fund with $60 million allocation. The credit structure provides 3% on expenses up to base amounts and 10-15% for expenses exceeding base amounts, with caps of $2 million for larger businesses and $250,000 for companies with fewer than 250 employees. An additional 5% bonus credit applies for collaboration with Michigan research universities, capped at $200,000.

Other states have updated their R&D incentive programs, with varying conformity approaches to federal changes. Some states maintain rolling conformity to the Internal Revenue Code and will automatically adopt Section 174A changes, while others require specific legislative action or have explicitly decoupled from federal treatment. Businesses operating across multiple jurisdictions must track state conformity status carefully to avoid unexpected state tax liabilities.

Common Implementation Challenges and Solutions

Businesses navigating recent changes face several practical hurdles requiring careful attention to detail and proper planning.

Documentation and Record-Keeping Under New Rules

Enhanced documentation requirements for Form 6765 Section G compliance demand that businesses maintain detailed records by business component. Required documentation includes total qualified employee wages, supply expenses, and contract research expenses broken down by research activity. Companies should implement systems now to capture this information contemporaneously, as retroactive documentation gathering creates significant administrative burden and audit risk.

Solution: Establish project-level tracking systems that identify each business component, log time and expenses by qualified research activity, and segregate costs by category. Engage tax consultants early in the planning process to ensure documentation meets evolving IRS standards.

Determining Domestic vs. International R&D Classification

Under OBBBA, only domestic research expenses qualify for immediate expensing under Section 174A, while foreign R&D must be capitalized and amortized over 15 years. Companies with global research operations must carefully classify where qualified research activities occur and allocate expenses accordingly. Computer software development conducted by offshore teams, for example, may not qualify for domestic treatment.

Solution: Review research activity locations systematically, document the physical location where substantially all research occurs, and maintain clear separation between domestic and international development expenses in accounting systems.

Coordination Between R&D Credit and Expense Deduction

The Section 41 research credit now requires that qualified research expenditures be treated as domestic R&D under Section 174A. Claiming the full research credit requires reducing the deduction by the credit amount. Alternatively, the reduced credit election under Section 280C(c) preserves the full deduction but reduces the credit amount.

Solution: Model both approaches based on current and projected taxable income, marginal tax rates, and credit utilization capacity. For many businesses, the full credit with reduced deduction provides greater total tax benefits, but circumstances vary significantly based on company-specific factors.

Conclusion and Next Steps

The 2025-2026 R&D tax credit environment reflects the most significant legislative changes to research expense treatment in nearly a decade. The OBBBA restored immediate deduction of domestic research costs, provided retroactive relief for qualifying small businesses, and set the stage for enhanced IRS reporting through Form 6765 updates.

Immediate action items:

1. Determine eligibility for small business retroactive relief by calculating average annual gross receipts against the $31 million threshold
2. Track the July 6, 2026 deadline for amended return filings if retroactive elections apply
3. Review current documentation systems against Section G requirements before mandatory reporting begins in 2026
4. Model filing options for 2022-2024 capitalized research costs to optimize cash flow and tax liability outcomes
5. Assess state conformity status for all operating jurisdictions to identify potential book-tax differences

Looking ahead, the IRS will release revised Form 6765 instructions in January 2026, with the public comment period closing March 31, 2026. Section G becomes mandatory for most filers starting with 2026 tax year returns. Ongoing monitoring of IRS guidance, state conformity developments, and potential additional legislative changes remains essential for businesses maximizing their R&D tax benefits, especially as the Senate Finance Committee, the joint committee on taxation, and policymakers connected to President Trump continue discussing future innovation incentives and broader economic legislation inspired by the Protecting Americans framework.

CTA can help your business navigate the latest R&D tax credit developments, filing requirements, and Section 174A compliance updates. Visit the CTA website today to explore expert guidance for maximizing research tax benefits and managing evolving IRS requirements.

Frequently Asked Questions

When do the OBBBA R&D tax changes take effect and what are key deadlines?

The OBBBA changes apply to tax years beginning after December 31, 2024. This makes the 2025 tax year the first year allowing full expensing of domestic R&D expenses under Section 174A. Key deadlines include July 6, 2026 for small business retroactive elections. The research credit claim perfection transition period ends January 10, 2027. Section G also becomes mandatory for most filers beginning with 2026 tax year returns.

Can my business retroactively amend 2022-2024 returns under the new law?

Only businesses meeting the small business definition may retroactively amend returns. Eligibility requires average gross receipts of $31 million or less for the three preceding tax years and not qualifying as a tax shelter under Section 448(d)(3). Larger businesses cannot amend prior returns but may claim remaining unamortized domestic R&D costs through accelerated deduction in 2025 or spread over 2025-2026.

What documentation is required under the new Form 6765 Section G requirements?

Section G requires businesses to identify all business components related to the research credit. Businesses must also report research activities, qualified employee wages, supply expenses, and contract research expenses for each component. While optional for 2025 tax year returns, these requirements become mandatory for most filers in 2026.

How do I determine if R&D expenses qualify as domestic versus international?

Domestic R&D expenses are those related to qualified research activities performed substantially within the United States. Classification depends on where the research occurs, not where the business is headquartered. Activities performed by foreign contractors or at international facilities count as foreign R&D. Those activities remain subject to 15-year amortization rather than immediate expensing.

Can startups still use the R&D credit to offset payroll taxes under current rules?

Yes. Qualified small businesses may elect to apply up to $500,000 of the R D credit against payroll tax liability rather than income tax liability. Eligibility requires gross receipts under $5 million. Businesses also cannot report gross receipts for any tax year preceding the five-year period ending with the current year. This payroll tax credit option remains valuable for startups with limited taxable income.

What is the best filing approach for businesses with 2022-2024 capitalized R&D expenses?

The optimal approach depends on business size, current taxable income, and administrative capacity. Small businesses meeting the $31 million gross receipts threshold should evaluate retroactive amendment for maximum refunds. Larger businesses should compare 1-year versus 2-year accelerated deduction based on income levels, NOL limitations, and cash flow needs. Businesses with state tax complexity may benefit from continued amortization to avoid conformity mismatches.