What is the self-employment tax rate?

The self-employment tax rate is 15.3% (12.4% Social Security + 2.9% Medicare) on 92.35% of net self-employment earnings. You can deduct half of this amount as an above-the-line deduction.

What is the best retirement plan for self-employed?

For most solo self-employed individuals, the Solo 401(k) offers the highest contribution limits ($23,500 employee deferral plus up to 25% of compensation as employer contribution in 2025, with a $70,000 combined maximum under age 50) along with Roth options.

Can I deduct health insurance as self-employed?

Yes. Self-employed individuals can deduct 100% of health insurance premiums for themselves, their spouse, and dependents as an above-the-line deduction, as long as they are not eligible for an employer-sponsored plan.

business Audience: self employed 5 min read

Self-Employed Tax Saving Strategies

A practical checklist for freelancers and small business owners to reduce taxes.

Last updated on March 16, 2026

Self-employed filers have unique opportunities and responsibilities. This checklist focuses on the highest-impact ways to reduce taxes while staying compliant.

Key Takeaways

Track deductible expenses and separate business finances.
Optimize retirement contributions (Solo 401(k), SEP, SIMPLE).
Plan for quarterly estimated taxes.

High-Impact Strategies

1. Maximize Retirement Contributions

Retirement contributions are one of the most powerful ways to reduce self-employment income:

Plan	2025 Employee Deferral	2025 Max Total	Best For
Solo 401(k)	$23,500	$70,000	Solo operators, highest limits
SEP IRA	N/A (employer only)	$70,000 (25% of comp)	Simple setup, no employees
SIMPLE IRA	$16,500	Varies with match	Small businesses with employees

See the SEP IRA vs SIMPLE IRA comparison for help choosing.

2. Deduct a Home Office

If you use a space regularly and exclusively for business, you can deduct it:

Simplified method: $5/sq ft, up to 300 sq ft ($1,500 max)
Actual expense method: Percentage of rent/mortgage, utilities, insurance, repairs

See our home office deduction guide for details.

3. Track Mileage and Business Expenses

The standard mileage rate is $0.70/mile for 2025. If you drive 10,000 business miles, that is a $7,000 deduction. Use an app to log trips in real time.

4. Consider S-Corp Status When Income Grows

Once your net profit consistently exceeds a reasonable salary, an S-corp election can reduce the 15.3% self-employment tax on distributions above your salary.

5. Time Income and Expenses

If you use cash-basis accounting (most sole proprietors do), you can:

Defer income by delaying invoices into the next year
Accelerate expenses by prepaying subscriptions or buying equipment before year-end

6. Deduct Health Insurance Premiums

Self-employed individuals can deduct 100% of health, dental, and vision premiums for themselves and their family. This is an above-the-line deduction, meaning it reduces AGI even if you do not itemize. Pair this with an HSA if you have a high-deductible health plan — the triple tax advantage makes it one of the most powerful savings vehicles available. See our HSA vs. FSA comparison to choose the right account.

7. Maximize the QBI Deduction

The Qualified Business Income (QBI) deduction lets eligible self-employed filers deduct up to 20% of qualified business income. The rules get complex at higher income levels — your AGI, type of business, and W-2 wages all factor in. If you run an S-Corp, see our QBI optimization guide for salary-distribution balancing strategies.

8. Tax Loss Harvesting on Investments

If you have investment accounts alongside your business, tax loss harvesting can offset capital gains and up to $3,000 of ordinary income per year. Be mindful of the wash sale rule when repurchasing similar securities.

9. Charitable Giving Strategies

Self-employed filers with variable income can benefit from charitable bunching — concentrating donations in high-income years to clear the standard deduction threshold and itemize. A donor-advised fund makes this easy to implement.

Understanding Self-Employment Tax

Self-employment tax is the self-employed equivalent of FICA payroll taxes:

Component	Rate	2025 Wage Base
Social Security	12.4%	$176,100
Medicare	2.9%	No limit
Additional Medicare (over $200k/$250k)	0.9%	No limit

You can deduct half of the SE tax as an above-the-line deduction on your 1040.

Forms You Will See

Schedule C for business income and expenses
Schedule SE for self-employment tax
Form 8829 if you claim a home office deduction
Form 1040-ES for quarterly estimated payments

Solo 401(k): Solo 401(k) strategy
SEP IRA vs. SIMPLE IRA: Which retirement plan fits?
Estimated taxes: Estimated tax payments guide
S-Corp strategies: S-Corp tax strategies
S-Corp reasonable compensation: Setting the right salary
S-Corp vs. LLC: Side-by-side tax comparison
LLC taxes: LLC taxes explained
Best business structure: Which entity type saves the most?
QBI deduction: Section 199A guide
Payroll taxes: FICA and payroll tax basics
Accountable plan: Tax-free reimbursements
Gig economy: Taxes for gig workers
Independent contractors: 1099 contractor tax guide
Effective tax rate: Calculate your true rate
Marginal vs. effective rates: Understanding the difference

How sharper.tax Helps

When you upload your tax return to sharper.tax, our platform analyzes your Schedule C income, identifies retirement contribution gaps, estimates self-employment tax savings from available strategies, and flags deductions you may be missing. Whether it is an S-corp election, a Solo 401(k), or a home office deduction, we surface the opportunities with the highest dollar impact for your situation. Sophisticated tax planning used to require a high-end CPA --- we make it available for free.

Sources

The information above is educational and not tax advice.