Small Business Tax Planning: 10 Strategies You Should Implement Before Year-End

Tax planning is not something that should happen in April. The most effective tax strategies are implemented months before year-end. With updated IRS thresholds for 2026 and the return of 100% bonus depreciation, there are meaningful opportunities on the table.

  1. Maximize Retirement Contributions

For 2026: 401(k) deferrals up to $23,500. SEP IRA up to $72,000. IRA $7,500. SIMPLE IRA $17,000. Every dollar contributed reduces your taxable income.

  1. Review Your Entity Structure

For business owners earning above $60,000-$80,000 in net profit, the S-Corp structure can generate significant savings on self-employment taxes. The deadline to file an S-Corp election is March 15.

  1. Accelerate Deductions

Prepay rent, insurance premiums, or annual software subscriptions before December 31 to shift deductions into the current tax year.

  1. Defer Income When Possible

If you expect to be in a lower tax bracket next year, consider delaying invoices or collections until January. Never sacrifice cash flow health for a tax benefit.

  1. Section 179 and Bonus Depreciation

Maximum Section 179 deduction: $2,560,000 for 2026. Phase-out begins at $4,090,000. 100% bonus depreciation reinstated under the One Big Beautiful Bill. SUV cap: $32,000.

  1. Review Estimated Tax Payments

2026 deadlines: Q1 April 15, Q2 June 16, Q3 September 15, Q4 January 15, 2027. Adjust your Q4 payment based on actual income.

  1. Charitable Giving Strategies

Donate appreciated assets to deduct fair market value while avoiding capital gains tax. Use donor-advised funds for larger donations.

  1. Health Insurance Deductions

Self-employed individuals can deduct 100% of health insurance premiums for themselves, spouse, and dependents.

  1. Plan for Capital Gains

Harvest losses to offset gains. Time asset sales across tax years. Explore opportunity zone investments.

  1. Document Everything

The IRS requires substantiation for every deduction. Do a year-end records audit. A clean, well-documented set of books is your first line of defense.

Put These Strategies to Work

Tax planning is one of the highest-return activities a small business owner can invest time in. The difference between reactive tax filing and proactive tax planning can be tens of thousands of dollars in savings every year.

Clear Books Advisory helps small business owners build the financial foundation that makes smart tax planning possible. Schedule a consultation at www.clearbooksadvisory.net

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