R&D deduction & credit recovery

You may be able to recover three years of R&D tax savings.

From 2022 through 2024, the tax code required businesses to spread their R&D deductions over five years instead of taking them the year the money was spent — cash held up for exactly the work R&D incentives are supposed to reward. Full same-year expensing is back for 2025. What got missed in 2022–2024 can often still be claimed on an amended return, one tax year at a time, until that year's window closes.

Where the clock actually stands

There's no single program deadline. Each tax year gets its own window to amend, and it closes on its own schedule — generally three years from when that year's return was filed.

For most calendar-year businesses, the 3-year window to amend a 2022 return is closing around now. If it was filed by the original due date, that window has often already closed — if it was filed on extension, there may still be a bit of time left.

A rule of thumb, not a ruling on your own return — the exact date depends on when your specific return was filed and any extensions.

What changed, in real numbers

Enter a rough income and R&D spend to see the deduction-timing swing between the two rules.

2022–2024 rules

Amortized over 5 years

R&D deduction (year 1)
$40,000
Taxable income
$460,000
Estimated tax
$96,600
2025+ rules

Full expensing, same year

R&D deduction
$400,000
Taxable income
$100,000
Estimated tax
$21,000

At these numbers, full expensing lowers the estimated federal tax bill by about $75,600 in the year the R&D is spent — from deduction timing alone.

Simplified illustration at a flat 21% federal corporate rate — ignores state tax, your actual bracket, and the R&D credit itself, which applies separately under both sets of rules.

More businesses qualify than most owners assume

Any US business resolving a real technical uncertainty — building or improving a product, process, software, or technique through trial and testing — can qualify. That includes work that mostly just looks like doing the job.

Software

Building or meaningfully improving an app, platform, or internal tool.

Manufacturing

Developing a new process, material, or product design through real trial and testing.

Engineering

Solving a technical problem where the outcome wasn't a given going in.

Product design

Iterating on a new product where more than one approach had to be tested.

How recovery works

Part of our team started at Ardius, an R&D credit company, before Gusto acquired it.

We look at what you missed, file the amendment with real study documentation behind it, and stay on the IRS side of it — alongside your existing CPA if you have one, or start to finish if you don't.

1
We look at what you missed.

A review of your 2022–2024 returns against the years still open, before anything gets filed.

2
We file the amendment.

With real study documentation behind it — alongside your existing CPA, or start to finish.

3
We stay on the IRS side of it.

Correspondence and timing, so it's not one more thing sitting on your desk.

See what your open years are actually worth.

Add your revenue and website for a full review, or talk to us directly.

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