Small Business Tax Changes 2026: OBBBA Guide | Swift Accountant

Small Business Tax Changes 2026: What the One Big Beautiful Bill Act Means for You

If you own a small business in the US, 2026 isn’t just “another filing year.” The 2025 One Big Beautiful Bill Act (OBBBA) is the largest tax overhaul since the 2017 Tax Cuts and Jobs Act, and it permanently reshapes several rules small business owners have been planning around for years. Understanding these small business tax changes for 2026 now — rather than at filing time — is the difference between capturing real savings and leaving money on the table.

Bonus Depreciation Is Back to 100%, Permanently

One of the most significant shifts is the permanent restoration of 100% bonus depreciation. Businesses can now deduct the full cost of qualifying machinery, equipment, and computers in the year they’re placed in service — including used property, not just new purchases. That means a business buying pre-owned equipment can still claim full first-year expensing, and there’s no more juggling multi-year depreciation schedules for eligible assets.

What this means for you: if you’re planning a major equipment purchase, timing it correctly in 2026 can meaningfully improve your cash flow and reduce this year’s taxable income.

Section 179 Expensing Limits Have Increased

The Section 179 deduction limit has risen to $2.5 million, with the phase-out threshold now starting well above $3.6 million in total equipment purchases. For most small and mid-sized businesses, this puts nearly all reasonable annual equipment spending fully within reach of immediate expensing — a meaningful upgrade from prior-year limits.

The QBI (Section 199A) Deduction Is Now Permanent

This is a big one for pass-through business owners. The 20% Qualified Business Income deduction — available to sole proprietors, partnerships, S-corps, and some trusts — was previously set to expire after 2025. OBBBA made it permanent, removing the expiration date entirely. On top of that, a new minimum deduction of $400 now applies to taxpayers with at least $1,000 in aggregate qualified business income who materially participate in the business, and the income phase-in ranges have been widened, meaning more business owners now qualify for a full or partial deduction than before.

What this means for you: if QBI planning felt like a moving target in past years, it’s now a stable, long-term piece of your tax strategy — worth building into multi-year planning rather than re-evaluating annually.

Other Changes Worth Watching

• No tax on qualifying tips and overtime for eligible employees — but only if payroll is set up correctly to track and report it.
• Increased SALT deduction cap, which affects many pass-through owners who itemize.
• Continued scrutiny on bookkeeping accuracy — IRS guidance increasingly expects your books to clearly support what’s reported on your return, with mismatches more likely to trigger notices or audits.

What Small Business Owners Should Do Now

1. Revisit your entity structure. With QBI now permanent and phase-in ranges wider, some businesses may benefit from restructuring in ways that weren’t worth the effort under prior, expiring rules.
2. Time major purchases deliberately. With 100% bonus depreciation and higher Section 179 limits, aligning equipment purchases with your income projections can meaningfully change your tax bill.
3. Tighten your bookkeeping now, not at filing time. Clean, accurate books are no longer just good practice — they’re your first line of defense against IRS mismatches.
4. Get a tax planning session on the calendar before year-end, not after. Most of these benefits require action during the year to fully capture.

Frequently Asked Questions

Is the QBI deduction still available in 2026? Yes — OBBBA made the 20% QBI deduction permanent, removing its previous expiration date, and added a guaranteed minimum $400 deduction for qualifying taxpayers.

What is the Section 179 deduction limit for 2026? The Section 179 expensing limit has increased to $2.5 million, with the phase-out threshold starting above $3.6 million in total equipment purchases.

Does bonus depreciation still phase out in 2026? No — OBBBA permanently restored 100% first-year bonus depreciation for qualifying property placed in service in 2026, including used equipment.

Do I need a tax advisor to take advantage of these changes? While not legally required, most of these provisions require proactive planning — timing purchases, structuring entities, and setting up payroll correctly — which is where professional tax planning adds real value.

The Bottom Line

2026 tax law changes are broadly business-friendly, but “business-friendly” doesn’t mean “automatic.” Every one of these benefits — bonus depreciation, Section 179, QBI — requires deliberate planning to capture fully. If your bookkeeping and tax strategy haven’t been reviewed against these new rules yet, that’s exactly the gap Swift Accountant helps small business owners close.

This article is for general informational purposes and doesn’t constitute tax advice.