OBBBA tax credits: the small-business owner's guide

The One Big Beautiful Bill Act, signed last summer and rolling in over three tax years, is the most consequential rewrite of small-business tax credits since 2017. It is also the one most owners have not read, because it arrived in the middle of a slow news cycle and has been quietly absorbed into IRS guidance one bulletin at a time.

Most of what we are telling clients fits on a single page. The rest is in this guide.

What actually changed

Three buckets of credits and deductions saw real adjustments under OBBBA: the R&D credit treatment (with a partial reversal of the 2022 amortization mandate for small filers), Section 179 limits (raised to keep pace with inflation and to favor service-economy assets), and clean-energy credits for vehicle and HVAC purchases (extended through 2030 but with new domestic-content thresholds).

There were also two cleanups. The 1099-K reporting threshold was finalized at $5,000 for this year, dropping to $2,500 next year and $600 the year after — a phased landing that gives platform users time to clean up their accounting. And the long-running ambiguity around partnership tax-basis reporting got a definitive rule, which most CPAs welcomed and a few quietly cursed.

The unlock isn’t the new credits. It’s the credits that were already on the books that owners simply did not know to claim.

Who benefits — and who loses

Service businesses and software shops are the clearest winners. The R&D fix alone means a developer-led LLC can again deduct qualified research expenses in the year incurred, rather than amortizing them over five years — a cash-flow swing that runs into five figures for any team building real product.

Capital-intensive small businesses — manufacturers, restaurants, contractors — gain meaningfully from the Section 179 update. The cap is now $1.31M for qualifying assets, indexed annually, with the phase-out beginning at $3.28M. Most operators we work with will never touch the ceiling. The point is they no longer have to triangulate around it.

The losers, if there are any, are owners who built tax plans around the lower 1099-K threshold and were quietly relieved when enforcement was delayed. That door is closing. If your contractor base routes through Stripe, Venmo, PayPal or a marketplace platform, the issuer will report it. Plan your bookkeeping accordingly.

Four things to do before your next return

One — re-run your last two years through the new R&D rules. If you booked amortized research costs, you may be entitled to a method change. The window is shorter than people think.

Two — reconcile your 1099-K-reportable income against your books before April. Mismatches are now the single most common driver of CP2000 notices, and the IRS has moved to issuing them within 90 days of the return.

Three — re-evaluate any deferred vehicle or equipment purchase. Section 179 plus bonus depreciation, taken together, can shift the after-tax cost of a $90,000 truck by close to a third. The math is rarely as scary as the price tag.

Four — talk to your CPA about the QBI clean-up. The 20% pass-through deduction survived OBBBA, but the specified-service-trade-or-business phase-outs got tightened. If your AGI floats around the threshold, the difference between claiming and not claiming QBI can be the difference between a refund and a check.

What we tell clients

Most owners are sitting on between $4,000 and $18,000 in legitimate credits they have never claimed. The bigger number is the result of layered planning over multiple years; the smaller number is just attention. We do free reviews of the last three returns when we onboard new clients, and we find at least one missed credit on most of them.

If you want to walk through how OBBBA touches your specific stack of returns — federal, state, owner 1040 — book a 30-minute call and we’ll put a one-pager in your inbox before you hang up.