Can You Take the Standard Deduction and Deduct Business Expenses?

Yes — if you’re self-employed, you can take the standard deduction and deduct business expenses on the same return. The two operate at different stages of the tax calculation and never force a choice. Your business expenses come off your revenue on Schedule C to reduce your adjusted gross income (AGI), and the standard deduction ($16,100 for single filers, $32,200 for married couples filing jointly in 2026) is subtracted afterward from whatever AGI is left.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026

Why the Two Deductions Don’t Compete

Federal tax law separates deductions that happen before AGI is set from deductions that happen after. Business expenses sit above that line. The standard deduction sits below it.

Section 62 of the Internal Revenue Code defines AGI as gross income minus specific adjustments, and trade or business deductions for non-employees are listed right at the top.2Office of the Law Revision Counsel. 26 USC 62 – Adjusted Gross Income Defined Every legitimate expense you put on Schedule C is subtracted from your revenue before you reach the line where personal deductions matter. The IRS puts it plainly: “Your AGI is calculated before you take your standard or itemized deduction.”3Internal Revenue Service. Definition of Adjusted Gross Income

Once AGI is set, Section 63 applies the standard deduction (or itemized deductions if you choose Schedule A) to get to taxable income.4Office of the Law Revision Counsel. 26 USC 63 – Taxable Income Defined A freelancer who spent $30,000 on legitimate business costs and a salaried worker who spent nothing both get the same standard deduction. The freelancer simply arrives at AGI with a much lower number.

The choice between the standard deduction and itemized deductions has nothing to do with your Schedule C. Itemizing means claiming personal expenses (mortgage interest, state and local taxes, charitable gifts, medical costs above the threshold) instead of the flat standard amount. Business expenses are neither. They live on their own form and reduce income before either option is even on the table.

What Counts as a Business Expense

Section 162 requires an expense to be both ordinary (common in your field) and necessary (helpful and appropriate for the work) to qualify.5Office of the Law Revision Counsel. 26 USC 162 – Trade or Business Expenses Software for a graphic designer? Ordinary and necessary. A boat to “brainstorm on the water”? The IRS will have questions.

The activity also needs a profit motive. If the IRS decides you’re running a hobby rather than a business, you lose the ability to deduct expenses against the income it produces. Earning a profit in at least three of the past five tax years raises a presumption that you’re operating a real business.6IRS.gov. Is Your Hobby a For-Profit Endeavor? Falling short doesn’t automatically disqualify you, but it invites closer scrutiny.

Mixed-use assets get split. A car driven 60% for client meetings and 40% for personal errands yields a deduction only on that 60%.7Internal Revenue Service. Publication 946 (2024), How To Depreciate Property A home office must be used regularly and exclusively for business, so a spare bedroom that doubles as a guest room won’t pass.8Internal Revenue Service. Publication 587 (2025), Business Use of Your Home

Vehicle Costs

You can use either the standard mileage rate or actual expenses, but not both in the same year on the same vehicle. The 2026 standard mileage rate is 72.5 cents per business mile.9Internal Revenue Service. IRS Sets 2026 Business Standard Mileage Rate at 72.5 Cents per Mile If you own the car, you must elect the standard rate in the first year the vehicle is available for business. If you lease, you’re locked into the standard rate for the whole lease. Driving between home and a regular workplace is commuting, not business mileage.

Home Office

The simplified method allows $5 per square foot of dedicated space, capped at 300 square feet ($1,500).10Internal Revenue Service. Simplified Option for Home Office Deduction The regular method uses the actual business-use percentage of your home applied to real costs like mortgage interest, utilities, insurance, and depreciation. More recordkeeping, often a larger deduction.

Startup Costs

New businesses can deduct up to $5,000 of startup expenses in the year the business begins operating. That allowance shrinks dollar-for-dollar once total startup costs exceed $50,000 and disappears at $55,000. Anything left over is amortized over 180 months.11Office of the Law Revision Counsel. 26 USC 195 – Start-Up Expenditures Market research, pre-opening advertising, and travel to scout locations all count.

Other Deductions That Also Stack with the Standard Deduction

Schedule C isn’t the only place a self-employed filer trims AGI before the standard deduction ever applies. Two more adjustments live on Schedule 1 and work exactly the same way: they lower AGI, and you still get the full standard deduction on top.

Half of self-employment tax. Schedule C net profit is hit with self-employment tax at a combined 15.3% rate — 12.4% Social Security plus 2.9% Medicare.12Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes) For 2026, the Social Security portion applies to the first $184,500 of combined wages and self-employment earnings; Medicare has no cap, and an additional 0.9% Medicare tax applies above $200,000 ($250,000 for joint filers). You can deduct half of the self-employment tax when calculating AGI.13Internal Revenue Service. Topic No. 554, Self-Employment Tax

Self-employed health insurance. Premiums you pay for yourself, your spouse, and your dependents are generally deductible as an above-the-line adjustment on Schedule 1, not on Schedule C.14IRS.gov. Form 7206 – Self-Employed Health Insurance Deduction (2025) Because it’s above the line, it reduces AGI even if you take the standard deduction. You can’t claim the same premiums here and again as a medical expense on Schedule A.

The Qualified Business Income Deduction

There’s a third deduction that stacks on top of both Schedule C expenses and the standard deduction: the qualified business income (QBI) deduction under Section 199A. Eligible sole proprietors can deduct up to 20% of qualified business income, and this deduction is available whether you itemize or take the standard deduction.15Internal Revenue Service. Qualified Business Income Deduction

Originally scheduled to expire after 2025, the QBI deduction was made permanent by the One Big Beautiful Bill Act. Income-based limits phase in above certain thresholds, and some service businesses (law, accounting, consulting) face further restrictions at higher incomes. QBI is calculated on Form 8995 or 8995-A and reduces taxable income after AGI. It sits alongside the standard deduction, not in place of it.

How It Flows Through the Forms

Seeing the sequence makes clear why nothing overlaps:

  • Schedule C: Report business income and expenses. The bottom line is net profit or loss. Most sole proprietors use the cash method.16Internal Revenue Service. Instructions for Schedule C (Form 1040) (2025)
  • Schedule SE: Calculates self-employment tax on that net profit.
  • Schedule 1: Schedule C net profit flows to line 3 and feeds Form 1040 line 8. The deductible half of self-employment tax and the self-employed health insurance deduction also land here as adjustments.17IRS.gov. Schedule 1 (Form 1040) 2025
  • Form 1040: After Schedule 1 adjustments you have AGI. Subtract the standard deduction, apply QBI if eligible, and you have taxable income.4Office of the Law Revision Counsel. 26 USC 63 – Taxable Income Defined

Business expenses come out on Schedule C. The standard deduction comes out on Form 1040. They don’t share a slot.

A 2026 Example That Shows the Stacking

Take a single sole proprietor with $80,000 in revenue and $25,000 in legitimate business expenses. Schedule C net profit is $55,000. That $55,000 flows to Schedule 1, where the deductible half of self-employment tax (and health insurance premiums, if any) further trims AGI. On Form 1040, the 2026 standard deduction of $16,100 comes off next. If the filer qualifies, the QBI deduction knocks off another slice.

The 2026 standard deduction amounts:1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026

  • Single or married filing separately: $16,100
  • Married filing jointly or surviving spouse: $32,200
  • Head of household: $24,150

Every legitimate business expense reduces income before this number is subtracted. The two deductions stack rather than compete, and taking the standard deduction never costs a self-employed taxpayer a single dollar of Schedule C write-offs.