⚙ R&D Expense Deduction — Restored

R&D expenses are fully deductible again in 2025 — and you can amend prior returns to recover taxes you overpaid

The short answer: For several years, a change in the tax law forced companies to amortize R&D expenses over 5 years instead of deducting them immediately. This caused startups and tech companies to pay significant taxes even when their cash was going out the door for salaries and hardware. The One Big Beautiful Act restores full immediate deductibility for R&D expenses — and critically, allows companies to amend prior returns to recover the taxes they overpaid during the amortization period.

⚡ Can amend 2022, 2023, 2024 returns to recover overpaid taxes — time-sensitive opportunity

Watch: Romeo Razi, CPA explains the One Big Beautiful Act

9 tax changes explained by a former IRS auditor who actually read the bill. Watch on YouTube →

What changed and why it was a problem

Before 2022, companies could deduct research and development expenses in the year they were incurred — just like any other business expense. If you paid $500,000 in programmer salaries and hardware costs for a software project, you deducted $500,000.

A provision in the Tax Cuts and Jobs Act changed this starting in 2022: R&D expenses had to be amortized over 5 years (10 years for foreign R&D). That meant the same $500,000 could only be deducted at $100,000 per year over 5 years. The cash was out the door, but the deduction was spread forward.

Romeo Razi, CPA — Explaining the One Big Beautiful Act

"A bunch of startup people were complaining that they had no money and they kept paying money to the government in taxes. Because all the cash would go out for the programmers and the hardware, but then they had to amortize R&D over 5 years — so they'd end up paying tax on what was basically a paper profit. This was a big deal for both Republicans and Democrats. So they fixed it. And not only that — they made it so if you did amortize it over the last few years, you can go back and amend your tax return and get your tax dollars back."

The amendment opportunity — recovering prior overpayments

This is the part that's genuinely time-sensitive. If your company had significant R&D expenses in 2022, 2023, or 2024 that you were required to amortize, you may have overpaid federal income taxes during those years. The One Big Beautiful Act lets you amend those returns to take the full immediate deduction retroactively and recover the overpayments.

2022
Can Amend
If you amortized R&D in 2022 instead of deducting fully, amend your 2022 return to claim the full deduction and receive a refund of the difference.
2023
Can Amend
Same as 2022. The 3-year statute of limitations for claiming refunds typically runs from the original filing date, so time matters.
2024
Can Amend
Most recent year of amortization — also amendable. If you filed on extension, your 3-year window runs from the extended deadline.

⚠ The statute of limitations for claiming a refund is generally 3 years from the original return due date (or the date the return was filed, if later). For 2022 returns, the window may be closing depending on when you filed. Act soon if you have significant R&D expenses from that year.

What qualifies as R&D for this deduction

The IRS definition of research and experimentation (R&E) expenses under IRC §174 is broader than most people expect. It includes costs paid or incurred in connection with the taxpayer's trade or business that represent research or experimentation in the experimental or laboratory sense. Common qualifying costs:

Costs that don't qualify include routine quality control, market research, advertising, and management studies.

Frequently asked questions about R&D deductions

How do I identify which expenses qualify as R&D for §174?
The definition under §174 is technical, and the IRS has published regulations and guidance on what qualifies. Generally, if the expenditure is related to discovering information that is technological in nature and applies to the development of a new or improved business component (including software), it likely qualifies. Documentation of the experimental nature of the work and the uncertainty involved in the process is important.
I'm a startup that had losses anyway — does the R&D deduction change matter for me?
The immediate deduction may not change your cash tax situation if you already had losses exceeding your income. However, the larger deduction can increase your net operating loss (NOL), which can be carried forward to offset future income. For startups expecting to become profitable, this can be significant. Also check whether you've been paying estimated taxes or alternative minimum tax that the amendment could recover.
Does the R&D tax credit (§41) interact with the §174 deduction?
Yes — the R&D tax credit (a separate and valuable credit under §41) is available for qualifying research expenses. There are specific rules about the interaction between the §41 credit and the §174 deduction, including a reduction of the §174 deduction by the amount of the §41 credit claimed. A CPA familiar with both provisions should coordinate the two for maximum benefit.
Romeo Razi, CPA
Former IRS Tax Examiner · CPA · Featured in MarketWatch, U.S. News & World Report
Romeo spent years inside the IRS as an auditor before founding Taxed Right LLC. He now helps taxpayers and business owners use the same insider knowledge to pay the least legally possible. Watch his IRS insider interview →

Had R&D expenses in 2022, 2023, or 2024? You may have a refund waiting.

Romeo can identify whether your prior R&D expenses qualify, calculate the potential refund from amended returns, and handle the amendment process to recover what you overpaid.

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