What deductions can a self-employed person take in 2026?
Self-employed workers can deduct home office, health insurance premiums, SE tax (half), business mileage, retirement contributions, meals (50%), software, equipment, and QBI up to 20% of net income.
The foundation for self-employed deductions is IRS guidance on deducting business expenses: an expense must be both ordinary (common in your trade or industry) and necessary (helpful and appropriate for your business). Schedule C (Profit or Loss from Business) is where most deductions are reported. Key categories include advertising, office supplies, professional fees, business insurance, and the cost of business-related software and subscriptions.
Beyond direct Schedule C expenses, self-employed workers also get several above-the-line adjustments on Form 1040: the deduction for one-half of self-employment tax, health insurance premium deduction, and retirement plan contributions (up to $69,000 for a SEP-IRA or $23,500 plus catch-up for a Solo 401(k) in 2026). The Section 199A Qualified Business Income deduction — up to 20% of net business income for qualifying taxpayers — is also taken on Form 1040 and can dramatically reduce the effective tax rate for freelancers and sole proprietors. The SBA's small business tax guide provides a useful overview of how these deductions interact when planning quarterly tax payments.
How does the home office deduction work for freelancers?
Freelancers deduct $5 per square foot (simplified, max 300 sq ft) or actual home costs × office percentage. The space must be used exclusively and regularly for business.
The home office deduction is one of the most valuable — and most misunderstood — deductions available to self-employed workers. According to the IRS home office deduction rules, the space must be used regularly and exclusively for business — meaning a dedicated room or clearly partitioned area, not a kitchen table where you also eat meals. The two calculation methods are the simplified method ($5 per square foot, maximum $1,500) and the regular method (actual expenses multiplied by the percentage of your home used for business).
The regular method often produces a larger deduction for homeowners because it allows you to claim mortgage interest, real estate taxes, homeowner's insurance, utilities, and depreciation on the business-use portion of the home. Renters can apply their rent proportionally. If your home office deduction exceeds your net business income for the year, the excess carries forward to future tax years rather than creating a loss. The regular method requires filing Form 8829; the simplified method is reported directly on Schedule C, line 30. Whichever method you choose, keeping photos and floor plans of your workspace will support your deduction if the IRS ever questions it.
Can I deduct health insurance premiums as self-employed?
Yes — self-employed individuals not eligible for employer coverage can deduct 100% of health, dental, and vision premiums for themselves and family on Form 1040, reducing AGI without itemizing.
The self-employed health insurance deduction is an adjustment to income rather than a Schedule C deduction, which makes it particularly powerful — it reduces your adjusted gross income (AGI) and lowers the income used to calculate various phase-outs. Medical, dental, and vision premiums all qualify. Long-term care insurance premiums qualify up to IRS age-based limits (ranging from $470 to $5,880 in 2026 depending on age). The deduction is capped at your net self-employment profit for the year and cannot create a loss.
The eligibility limitation is important: if you were eligible for coverage under any employer plan — including a spouse's employer plan — for any month during the year, you cannot claim the deduction for that month, even if you chose not to enroll. Note also that health insurance premiums are not deductible from self-employment tax under the SSA self-employment tax rules; only the one-half SE tax deduction reduces the SE tax base. Freelancers enrolled in ACA marketplace plans should also check how the premium tax credit interacts with the self-employed health insurance deduction, since claiming both requires a coordination calculation.
What's the difference between Schedule C deductions and the QBI deduction?
Schedule C deductions cut business profit — reducing both income and SE tax. The QBI deduction (up to 20% of net income) is separate on Form 1040, cutting income tax only, not SE tax.
Schedule C deductions are expenses directly incurred in running your business. Every dollar you deduct on Schedule C reduces your net profit, which reduces both federal income tax and self-employment tax (15.3% on the first $176,100 of net SE income in 2026). This double reduction makes Schedule C deductions especially valuable. Common examples include advertising costs, business insurance, contract labor, office supplies, professional development, and the home office deduction.
The Qualified Business Income (QBI) deduction under IRS Section 199A guidance works differently. It is calculated as up to 20% of your qualified business income after Schedule C and taken as a separate deduction on Form 1040 (Form 8995). It reduces federal income tax but not self-employment tax. The Tax Foundation's analysis of the QBI deduction notes that it primarily benefits pass-through business owners in lower-to-middle income brackets. Phase-outs apply for specified service businesses (law, accounting, consulting, financial services) with taxable income above $197,300 (single filers) in 2026. Other sole proprietors can generally claim the full 20% deduction up to the wage-and-capital limitation.
When are self-employed estimated tax payments due in 2026?
2026 estimated tax due dates: April 15, June 16 (Q2 — note Sunday shift), September 15, and January 15, 2027. Missing a deadline triggers an IRS underpayment penalty.
The IRS estimated tax rules require self-employed individuals to pay taxes as they earn income throughout the year. If you expect to owe $1,000 or more in federal tax for 2026 after subtracting withholding and credits, quarterly estimated payments are required. The four payment periods for 2026 are: Q1 income (January 1–March 31) due April 15, 2026; Q2 income (April 1–May 31) due June 16, 2026 — because June 15 falls on Sunday, the deadline shifts to Monday; Q3 income (June 1–August 31) due September 15, 2026; and Q4 income (September 1–December 31) due January 15, 2027.
To avoid the underpayment penalty, you must pay either 90% of your 2026 tax liability across the four installments, or 100% of your 2025 tax liability (110% if your 2025 AGI exceeded $150,000). This is known as the “safe harbor” rule. Use IRS Form 1040-ES to calculate your estimated payment for each quarter and pay electronically through IRS Direct Pay or the Electronic Federal Tax Payment System (EFTPS). Payments made even one day late accrue a penalty for the late period. If your income is uneven across the year — common for freelancers with seasonal clients — the annualized income installment method on Form 2210 can help you avoid penalties even if your payments are uneven.
How do I track deductions throughout the year?
Track deductions by opening a dedicated business bank account, using accounting software, capturing digital receipts in real time, and logging business mileage every trip.
The single most effective habit for self-employed tax tracking is keeping business and personal finances completely separate. Open a dedicated business checking account and a business credit card — every business purchase flows through those accounts, creating a clean paper trail. Use bookkeeping software (even a simple spreadsheet) to categorize expenses monthly rather than reconstructing them at tax time. For mileage, the IRS requires a contemporaneous log — apps like MileIQ or a simple phone note with date, destination, and business purpose satisfy this requirement. For meals, note who you met with and the business purpose on the receipt immediately; a receipt alone without context may not survive an IRS audit. Capturing receipts with a phone camera at the point of purchase ensures you never lose documentation.
What records does the IRS require for self-employed deductions?
The IRS requires receipts, bank statements, mileage logs, and canceled checks for 3–7 years. Records must show amount, date, payee, and business purpose for each expense.
IRS Publication 583 outlines recordkeeping requirements for small businesses and self-employed individuals. You must retain supporting records for at least three years from the date you filed your return — or two years from when you paid the tax, whichever is later. However, if you underreport income by more than 25%, the statute of limitations extends to six years; in cases of fraud, there is no statute of limitations. For property (including home office depreciation), keep records for as long as you own the asset plus three years. For each business expense, your documentation should show the amount, date, payee, and specific business purpose. Electronic records — scanned receipts, bank export files, cloud accounting software data — are fully acceptable to the IRS as long as they are legible and reproducible. Back up your records in at least two locations (cloud plus local drive) to guard against data loss.