Paying less tax when you’re self-employed comes down to shrinking the number your taxes are calculated on. Every deductible expense, retirement contribution, and structural election reduces either your federal income tax, the 15.3% self-employment tax, or both. The self-employment tax covers Social Security (12.4% on the first $184,500 of net earnings in 2026) and Medicare (2.9% with no cap), and federal income tax stacks on top.1Social Security Administration. Contribution and Benefit Base The strategies below work together, and most of them can save thousands each year.
Deduct Every Legitimate Business Expense
This is the highest-leverage move you have, because business deductions reduce both your income tax and your self-employment tax. Both are calculated on your net profit from Schedule C. The tax code allows deductions for expenses that are ordinary and necessary for your trade or business: “ordinary” meaning common in your line of work, “necessary” meaning helpful and appropriate.2Office of the Law Revision Counsel. 26 U.S. Code 162 – Trade or Business Expenses
Vehicle Mileage
The business mileage rate for 2026 is 72.5 cents per mile, which bundles gas, insurance, depreciation, and maintenance into a single figure.3Internal Revenue Service. IRS Sets 2026 Business Standard Mileage Rate at 72.5 Cents Per Mile, Up 2.5 Cents Drive 15,000 business miles and you have a $10,875 deduction without a single gas receipt. You can instead deduct actual vehicle expenses, but once you pick the standard rate the first year you use a car for business, you’re generally locked in for that vehicle.
Home Office
If you use part of your home regularly and exclusively for business, you can deduct the associated costs. The simplified method allows $5 per square foot up to 300 square feet, for a maximum deduction of $1,500 with no recordkeeping.4Internal Revenue Service. Simplified Option for Home Office Deduction The regular method calculates the actual percentage of your home used for business and typically produces a larger deduction when housing costs are high, but it requires more paperwork.
Meals
Business meals with clients, partners, or colleagues are 50% deductible when you or an employee are present and the meal isn’t extravagant.5Internal Revenue Service. Tax Cuts and Jobs Act – Businesses The temporary 100% deduction for restaurant meals expired after 2022. Log who attended, the business purpose, and the amount.
Everything Else
Office supplies, software subscriptions, professional development, marketing, professional fees for accountants and attorneys, and business insurance premiums are all deductible when used exclusively for business.
Keep receipts, bank statements, and mileage logs. The IRS can generally audit returns filed within the past three years, so keep documentation at least that long, and six years if you might have underreported income by more than 25%.6Internal Revenue Service. How Long Should I Keep Records Contemporaneous logs for meals and travel carry far more weight than reconstructed ones.
Write Off Equipment in the Year You Buy It
When you buy equipment, furniture, computers, or vehicles for the business, you don’t have to spread the deduction over years of depreciation. Two provisions let you deduct the full cost right away.
Section 179 Expensing
Section 179 lets you deduct the full purchase price of qualifying business property in the year you place it in service.7Office of the Law Revision Counsel. 26 USC 179 – Election to Expense Certain Depreciable Business Assets The base deduction limit is $2,500,000 starting in 2026, with phase-out beginning around $4,000,000 of purchases. Most self-employed people won’t come close to those ceilings, so in practice you can expense virtually any equipment purchase in full.
One catch: the Section 179 deduction can’t exceed your business’s taxable income for the year. Buy $50,000 of equipment on $30,000 of net profit and you deduct $30,000 now, with the remaining $20,000 carrying forward. Heavy SUVs have a separate $25,000 cap.
Bonus Depreciation
The One Big Beautiful Bill Act permanently restored 100% bonus depreciation for qualified business property acquired after January 19, 2025.8Internal Revenue Service. Treasury, IRS Issue Guidance on the Additional First Year Depreciation Deduction Amended as Part of the One Big Beautiful Bill Unlike Section 179, bonus depreciation has no annual dollar cap and can create a net operating loss that offsets other income. For a large purchase like a work truck or specialized machinery, it often gives more flexibility than Section 179 alone.
Deduct Your Health Insurance Premiums
Self-employed individuals can deduct 100% of what they pay for health, dental, and vision insurance for themselves, their spouse, and their dependents. Qualifying long-term care premiums are deductible up to age-based limits. This is an above-the-line deduction, so it reduces your adjusted gross income whether or not you itemize.9Internal Revenue Service. Instructions for Form 7206
Two eligibility rules matter. You need a net profit from the business, because the deduction can’t exceed your net self-employment income. And you can’t claim it for any month in which you were eligible to participate in a subsidized health plan through your own employer, your spouse’s employer, or a parent’s plan. The disqualification works month by month: if your spouse’s employer coverage ended in June, you can still claim the deduction for July through December.
For sole proprietors, the policy can be in either the business name or your personal name. Partners and S-corporation shareholders who own more than 2% of the company have additional reporting requirements involving reimbursement through the entity.
Max Out a Retirement Plan
Retirement contributions cut your taxable income now and grow tax-deferred until withdrawal. Two plans work particularly well for self-employed people, and the right choice depends on your income.
SEP IRA
A Simplified Employee Pension IRA lets you contribute up to 25% of your net self-employment earnings, capped at $72,000 for 2026.10Internal Revenue Service. SEP Contribution Limits (Including Grandfathered SARSEPs) Setup is simple, contributions are flexible year to year, and you have until your tax filing deadline (including extensions) to fund the prior year. Downsides: no catch-up contribution for older workers, and if you have employees, you generally must contribute the same percentage for them.
Solo 401(k)
A Solo 401(k) works for business owners with no full-time employees other than a spouse. You contribute in two capacities: as the employee (up to $24,500 in elective deferrals for 2026) and as the employer (up to 25% of net self-employment earnings). Combined, the total can’t exceed $72,000.11Office of the Law Revision Counsel. 26 USC 401 – Qualified Pension, Profit-Sharing, and Stock Bonus Plans
The Solo 401(k) shines at lower income levels. On $60,000 of net earnings, a SEP caps your contribution at $15,000 (25%). A Solo 401(k) allows $24,500 as the employee plus roughly $15,000 as the employer, approaching $39,500. That’s a dramatically larger deduction on the same income.
Workers 50 and older can add $8,000 in catch-up contributions. SECURE 2.0 introduced a higher $11,250 catch-up for ages 60 to 63, raising the potential total to $83,250 if the plan allows.
Take the 20% Qualified Business Income Deduction
The QBI deduction under Section 199A lets eligible self-employed individuals deduct up to 20% of their qualified business income from their taxable income.12Office of the Law Revision Counsel. 26 U.S. Code 199A – Qualified Business Income Earn $100,000 in qualified business income and this removes $20,000 from taxable income before federal income tax is calculated. Originally scheduled to expire after 2025, it was made permanent by the One Big Beautiful Bill Act.
It reduces income tax only, not self-employment tax. Capital gains, interest, and dividends aren’t qualified business income, so those need to be separated in your accounting.13Internal Revenue Service. Qualified Business Income Deduction
Income thresholds determine whether you get the full deduction. For 2026, single filers under roughly $201,750 and joint filers under roughly $403,500 generally qualify for the full 20%. Above those levels, limitations based on wages paid and property held by the business start to apply. Owners of specified service businesses (law, consulting, health care, financial services) face the strictest phase-outs, with the deduction disappearing entirely as income climbs above roughly $276,750 single and $553,500 joint.
Consider Electing S-Corporation Status
Not every self-employed person should elect S-corp status, but when the numbers work it’s one of the most effective ways to reduce self-employment tax. Normally, all your net profit is subject to the 15.3% self-employment tax. An S-corporation splits that profit into two buckets: a salary you pay yourself (subject to payroll taxes) and distributions of remaining profit (generally not subject to self-employment or payroll taxes).14Internal Revenue Service. S Corporations
The math is straightforward. Say your business nets $150,000. As a sole proprietor, you owe self-employment tax on the full amount. As an S-corp, you might pay yourself a $90,000 salary and take the remaining $60,000 as a distribution. You’d save roughly $9,180 in self-employment tax on that $60,000. The income tax bill stays the same either way, since both salary and distribution are taxed as income.
The IRS requires your salary to be “reasonable” for the work you perform. Setting it artificially low to dodge payroll taxes is the fastest way to draw an audit and have distributions reclassified as wages, with penalties and interest. The IRS looks at your training and experience, your duties, the time you devote, and what comparable businesses pay for similar roles. The last factor tends to carry the most weight.
To elect, file IRS Form 2553 no more than two months and 15 days after the beginning of the tax year, or any time during the preceding year.15Internal Revenue Service. Instructions for Form 2553 Your entity must be a corporation or LLC first. Once elected, you’ll run payroll for yourself, file a separate corporate return (Form 1120-S), and maintain basic corporate formalities like a separate bank account. The added compliance cost generally makes the election worthwhile only when net profit reliably exceeds $50,000 to $60,000 a year.
Pay Quarterly Estimates to Avoid Penalties
Missing estimated payments doesn’t save you money. It just adds penalties. Self-employed workers pay in quarterly using Form 1040-ES.16Internal Revenue Service. Estimated Tax for Individuals The 2026 deadlines:
- First quarter: April 15, 2026
- Second quarter: June 15, 2026
- Third quarter: September 15, 2026
- Fourth quarter: January 15, 2027
You can skip the January 15 payment if you file your full 2026 return and pay any balance due by February 1, 2027. IRS Direct Pay transfers funds from a bank account at no charge, and the Electronic Federal Tax Payment System lets you schedule payments in advance.
You avoid an underpayment penalty if your payments and withholding cover at least 90% of your current-year tax liability, or 100% of last year’s tax, whichever is less. If last year’s adjusted gross income exceeded $150,000 ($75,000 if married filing separately), the prior-year threshold rises to 110%.17Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty You also avoid penalties if you owe less than $1,000 when you file.
For income that swings across the year, the annualized income installment method on Form 2210 matches each quarterly payment to income actually earned in that period, which can reduce or eliminate penalties for seasonal businesses or freelancers who land a big contract midway through the year. The underpayment penalty rate for early 2026 is 7%, dropping to 6% starting in April, and it adjusts quarterly.18Internal Revenue Service. Quarterly Interest Rates
The Automatic Deduction You Already Get
One savings works without any planning: you can deduct half of your self-employment tax from your gross income. It’s above-the-line, so you get it whether you itemize or take the standard deduction.19Office of the Law Revision Counsel. 26 U.S. Code 164 – Taxes On $100,000 of net earnings, self-employment tax runs roughly $14,130, and about $7,065 comes right off your adjusted gross income. It’s calculated automatically when you complete Schedule SE and claimed on Schedule 1. Nothing extra to file, but worth knowing about because it makes the effective cost of self-employment tax lower than the 15.3% headline suggests.