Small Business Tax Strategies for 2026: What Has Changed and What to Do Before December 31
2026 is one of the most significant years for small business tax strategy in recent memory. Several key provisions that were set to expire have been made permanent, contribution limits have increased, and depreciation rules have been reset in ways that create real planning opportunities for business owners who act before year end.
This guide covers what has changed for 2026, what it means for your business specifically, and the actions worth taking before December 31. Tax strategy only works when it is implemented early enough to matter. Reading this in January is interesting. Reading it in October and acting on it is profitable.
01 — The Biggest Change
The 20% Small Business Deduction Is Now Permanent
The most significant tax development for small business owners in 2026 is the permanent extension of the Section 199A Qualified Business Income deduction under the One Big Beautiful Bill Act signed into law in 2025. This provision, previously set to expire, had created significant uncertainty for long-term business planning. That uncertainty is now resolved.
Section 199A allows eligible pass-through business owners — sole proprietors, single-member LLCs, partnerships, and S-Corps — to deduct up to 20% of their qualifying business income from their taxable income. It does not reduce your business profit. It reduces the amount of that profit you pay income tax on.
Example: A business owner with $180,000 in qualifying business income can potentially deduct $36,000 under Section 199A. At a 24% federal income tax rate that is $8,640 in tax savings from a single deduction, without changing anything about how the business operates.
Who Qualifies and Who Does Not
Eligibility is not universal. The deduction phases out for higher-income owners in certain service industries including law, accounting, financial services, consulting, and health. For 2026 the phase-out begins at $197,300 for single filers and $394,600 for married filing jointly. Above those thresholds the deduction is reduced and eventually eliminated for specified service businesses.
For business owners above the threshold, two strategies can restore or preserve the deduction:
- Increasing W-2 wages paid through the business, since the deduction for higher earners is limited to 50% of W-2 wages or 25% of wages plus 2.5% of qualified property
- Reducing taxable income below the threshold through retirement contributions, which are deducted before the 199A calculation is applied
The first step is confirming with your accountant whether your business type qualifies and whether your income level affects the calculation. Do this before year end while there is still time to act.
02 — Depreciation
Bonus Depreciation Is Back at 100% and Section 179 Has Expanded
Two of the most powerful tools for reducing business tax in the year of a major purchase have both been significantly strengthened for 2026.
Bonus Depreciation: Restored to 100%
Bonus depreciation had been phasing down since 2023, reaching 60% in 2024 and 40% in 2025. The One Big Beautiful Bill Act restored it to 100% for qualifying property placed in service in 2026. This means a piece of equipment, technology, or other qualifying asset purchased and put into use before December 31, 2026 can be fully deducted in the current tax year rather than depreciated over its useful life.
Section 179: Limit Increased to $2.56 Million
Section 179 allows businesses to elect to deduct the full cost of qualifying assets in the year of purchase. For 2026 the deduction limit has increased to $2.56 million, up from $1.25 million in 2025. The phase-out threshold, above which the deduction begins to reduce dollar for dollar, is $3.21 million in total asset purchases.
| Provision | 2025 | 2026 | Change |
|---|---|---|---|
| Bonus Depreciation | 40% | 100% | Restored in full |
| Section 179 Limit | $1.25M | $2.56M | +$1.31M |
| 199A Deduction | Temporary | Permanent | No longer expiring |
What Qualifies for Both Provisions
- Business equipment, machinery, and tools
- Computers, software, and technology infrastructure
- Business vehicles over 6,000 lbs gross vehicle weight
- Office furniture and fixtures used exclusively for business
- Qualified improvement property such as interior improvements to non-residential buildings
Timing matters: Assets must be placed in service before December 31 to qualify for the 2026 deduction. Ordered but not yet received and in use does not count. If you are planning a significant purchase, confirming delivery and installation timelines now is part of the tax strategy.
03 — Retirement
2026 Retirement Contribution Limits: What Has Increased
Retirement contributions are one of the most straightforward tax reduction strategies available. Every dollar contributed to a qualifying plan reduces your taxable income in the year of contribution. For 2026, several limits have increased.
| Plan Type | 2026 Limit | Best For |
|---|---|---|
| Solo 401(k) | $72,000 total ($80,000 ages 60–63) | Solo operators, no employees |
| SEP-IRA | 25% of compensation | Variable income, simple setup |
| SIMPLE IRA | $17,000 | Small teams, lower admin |
| Traditional/Roth IRA | $7,500 ($8,600 age 50+) | All business owners, on top of above |
For a business owner in the 32% federal tax bracket, the maximum Solo 401(k) contribution of $72,000 reduces the current year federal tax bill by $23,040. That is a return on a tax planning decision that is both immediate and guaranteed, before any investment returns are considered.
The SECURE Act 2.0 Catch-Up Enhancement
Business owners between the ages of 60 and 63 are eligible for an enhanced catch-up contribution of $11,250 on top of the standard $72,000 Solo 401(k) limit, bringing their total potential contribution to $83,250 for 2026. This provision was introduced under SECURE Act 2.0 and applies specifically to this age window, not to all owners over 50.
If you fall in this age range and have not maximised your retirement contributions, this is the highest-leverage tax action available to you in 2026.
04 — Entity Structure
The S-Corp Election: Still the Most Underused Tax Strategy
Despite being widely discussed, the S-Corp election remains underused. The IRS does not notify business owners when the election would benefit them. Owners stay in default LLC or sole proprietor status year after year, paying self-employment tax on 100% of their profit, simply because no one prompted the change.
For 2026 the self-employment tax rate remains 15.3% on the first $176,100 of net profit, with the 2.9% Medicare portion continuing above that threshold. An S-Corp election removes distributions from self-employment tax entirely, applying it only to the W-2 salary portion of the owner’s income.
The Deadline for 2026 Elections
To elect S-Corp status effective for the 2026 tax year, existing entities must file Form 2553 by March 15, 2026. New entities have 2 months and 15 days from their formation date. If you are reading this after March 15, the election applies to your 2027 tax year and the planning conversation should start now to ensure the March 2027 deadline is not missed.
05 — Compensation
Owner Compensation Strategies That Reduce Tax
Accountable Plan Reimbursements
An accountable plan allows the business to reimburse the owner for legitimate business expenses, including home office, vehicle use, and business-related technology, without those reimbursements counting as taxable wages. The reimbursements are deductible by the business and tax-free to the owner. For S-Corp owners this is particularly valuable because it reduces the taxable income on which both corporate taxes and personal income tax apply.
Health Insurance Premium Deduction
Self-employed business owners who pay for their own health insurance can deduct 100% of the premiums as an above-the-line deduction on their personal return, regardless of whether they itemize. For S-Corp owners the company must pay or reimburse the premiums and include them in W-2 wages for the deduction to apply correctly. This is one of the most frequently mishandled deductions for S-Corp owners and worth reviewing with your accountant to confirm it is being taken correctly.
06 — Year-End Checklist
What to Do Before December 31, 2026
Tax strategy only works when it is implemented before the year closes. Here is the priority order for actions between now and December 31:
- Confirm your 199A eligibility and calculate the actual deduction for your income level. If you are near the phase-out threshold, model the impact of additional retirement contributions on bringing taxable income below the limit.
- Review planned capital purchases. Any equipment, technology, or qualifying property you were planning to buy in early 2027 is worth moving into 2026 to capture the full bonus depreciation deduction this tax year.
- Calculate your retirement contribution headroom. How much can you still contribute to your Solo 401(k) or SEP-IRA for 2026? Maximising this before year end is one of the highest-return decisions available.
- Schedule a mid-year tax review with your accountant. Bring your year-to-date P&L and ask specifically about 199A eligibility, retirement contribution headroom, and whether any planned purchases should be moved into this tax year. One meeting held early enough to act on is worth far more than any last-minute filing scramble.
- Review your entity structure against your current net profit level. If profit has crossed $50,000 to $60,000 consistently and you are still in default LLC status, the S-Corp election conversation is overdue.
The most expensive tax mistake: Waiting until April to think about last year’s taxes. Every strategy in this guide requires action before December 31. After that date, your options narrow significantly and the best decisions you could have made are no longer available.
The Bottom Line on 2026 Tax Strategy
2026 offers a genuinely strong environment for small business tax planning. The permanence of the 199A deduction removes uncertainty. The restoration of 100% bonus depreciation creates immediate opportunities for business owners planning capital expenditure. The increased retirement limits allow more income to be sheltered than in previous years.
None of these benefits are automatic. They require deliberate decisions, made early enough to implement before year end. The business owners who capture the most value from these provisions are not the ones with the most sophisticated advisors. They are the ones who had the conversation early enough to act.
Book the tax review. Run the numbers. Make the decisions before December 31.
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Subscribe from $79/year →This article is for educational purposes only and does not constitute tax, legal, or financial advice. Tax laws change frequently and individual circumstances vary. Please consult a qualified tax professional regarding your specific situation before making any tax-related decisions.