How much do I have to earn before I owe self-employment tax?

You generally owe self-employment tax once your net earnings from self-employment reach $400, per IRS Tax Topic 554. That is $400 of profit after business expenses, not $400 of gross platform pay, and it applies whether or not any platform sends you a form.

Why is self-employment tax calculated on 92.35% of my profit?

The IRS states that generally the amount subject to self-employment tax is 92.35% of net earnings from self-employment (Tax Topic 554). The 7.65% haircut mirrors the employer share a W-2 worker never pays tax on. Combined, 92.35% times 15.3% works out to about 14.13% of Schedule C net profit.

Can I deduct half of my self-employment tax?

Yes. The IRS allows you to deduct one-half of your self-employment tax when figuring adjusted gross income on Form 1040. It reduces income tax only - it does not reduce the self-employment tax itself, and you take it whether or not you itemize.

Is there a cap on self-employment tax?

The 12.4% Social Security portion applies only up to the annual wage base, which is $184,500 for 2026 per the Social Security Administration, counting any W-2 wages first. The 2.9% Medicare portion has no cap, and an Additional Medicare Tax of 0.9% applies above $200,000 for single filers and $250,000 for joint filers.

When do gig drivers pay self-employment tax?

It is settled on your annual return via Schedule SE, but it is meant to be prepaid through quarterly estimated payments. For 2026 income the due dates are April 15, June 15 and September 15, 2026, and January 15, 2027, per Form 1040-ES.

Do I owe self-employment tax if I never received a 1099?

Yes. Forms report income; they do not create the tax. For 2026 the 1099-K threshold is $20,000 and 200 transactions and the 1099-NEC threshold rises to $2,000, so many drivers receive no form at all - the profit is still reportable and still subject to self-employment tax.

Self-Employment Tax for Gig Drivers, Explained

Q: What is self-employment tax for gig drivers?

It is Social Security and Medicare tax paid by people without an employer. The rate is 15.3% - 12.4% for Social Security and 2.9% for Medicare, per IRS Tax Topic 554. It is charged in addition to income tax, and delivery and rideshare platforms withhold none of it.

Q: Does the mileage deduction reduce self-employment tax?

Yes. The standard mileage deduction is a business expense on Schedule C, so it lowers net profit before self-employment tax is figured. Each $1,000 of mileage deduction cuts self-employment tax by roughly $141, and cuts income tax on top of that.

GigOdo Team · Published August 15, 2026 · Every figure sourced to the IRS or SSA unless noted

TL;DR

Self-employment tax is 15.3%: 12.4% Social Security plus 2.9% Medicare (IRS Tax Topic 554).
It applies to 92.35% of your net profit, not your gross platform pay - about 14.13% of profit in practice.
It kicks in at $400 of net earnings, with or without a 1099.
Every deductible mile cuts self-employment tax and income tax.
Half the self-employment tax comes back as an above-the-line deduction.

What self-employment tax actually is

Self-employment tax is Social Security and Medicare for people who have no employer. The rate is 15.3%, made up of 12.4% for Social Security and 2.9% for Medicare, per IRS Tax Topic 554. A W-2 worker pays half and their employer pays the other half. Driving for an app, you are both halves.

This is the line item that produces most April surprises. It is charged on top of income tax, not instead of it, and no delivery or rideshare platform withholds a cent of it. A driver who mentally taxes their gig income at "my bracket" is under-reserving by roughly 14 cents on every dollar of profit.

Two separate taxes land on the same Form 1040: income tax on your taxable income, and self-employment tax computed on Schedule SE from your Schedule C net profit. Understanding which one a deduction touches is the whole game, and we come back to it below.

Who owes it, and the $400 line

You generally must pay self-employment tax if you had net earnings from self-employment of $400 or more, per Tax Topic 554. Read that as $400 of profit after business expenses, not $400 of gross fares. A driver who grossed $6,000 and deducted $5,800 in miles and supplies is under the line for that year.

The threshold has nothing to do with paperwork. Forms report income; they do not create the tax. In 2026 the 1099-K threshold sits at $20,000 and 200 transactions (IR-2025-107), and the 1099-NEC threshold rises from $600 to $2,000 for payments made in 2026 under OBBBA Sec. 70433. Plenty of part-time drivers will now finish a year with taxable profit and no form in the mail at all.

The 92.35% step nobody explains

Self-employment tax is not 15.3% of your profit. The IRS states that generally the amount subject to the tax is 92.35% of your net earnings from self-employment. You multiply Schedule C net profit by 0.9235 first, then apply 15.3% to what is left.

That 7.65% haircut exists because an employee never pays tax on the employer's half of payroll tax, and the IRS levels the field. The practical shortcut: 0.9235 times 0.153 is about 14.13%. Every $1,000 of net profit carries roughly $141 of self-employment tax, and every $1,000 of legitimate deduction removes it.

A worked year: $20,000 gross, 14,000 business miles

Numbers make this concrete. Take a part-time delivery driver in 2026 with $20,000 in gross platform earnings, 14,000 logged business miles split evenly across the year, and $400 of other business expenses such as the business share of a phone plan and insulated bags.

Line	Amount
Gross platform earnings	$20,000
Mileage: 7,000 mi Jan-Jun at 72.5¢	-$5,075
Mileage: 7,000 mi Jul-Dec at 76¢	-$5,320
Other business expenses	-$400
Schedule C net profit	$9,205
Net earnings subject to SE tax (× 92.35%)	$8,501
Self-employment tax at 15.3%	$1,301
Deduction for one-half of SE tax	$650

Mileage rates: 72.5 cents for January 1 - June 30 (Notice 2026-10) and 76 cents for July 1 - December 31 (Announcement 2026-11). Self-employment math per Tax Topic 554. Figures rounded to the dollar.

Note what the mileage deduction did here. It converted $20,000 of gross into $9,205 of profit, and the tax follows the profit. Run your own split-rate math with the 2026 mileage deduction calculator before you trust any round-number estimate.

What that driver actually owes in total

Self-employment tax is only half the answer. If those deliveries are the driver's only income, adjusted gross income is $9,205 minus the $650 half-SE-tax deduction, or $8,555 - below the 2026 standard deduction of $16,100 for a single filer (Rev. Proc. 2025-32). Federal income tax: zero. Self-employment tax: still $1,301.

That is the shape of the surprise. A driver can owe over a thousand dollars while owing no income tax whatsoever, because Social Security and Medicare do not care about your standard deduction.

Change one fact and the total moves. If the same $9,205 of gig profit stacks on top of a day job that already fills the 12% bracket, the driver adds roughly $1,027 of income tax to the $1,301 - about $2,328 on $20,000 of gross, or 11.6 cents per gross dollar. Gig income is taxed at your marginal rate, not your average one.

Why deductions cut two taxes at once

A Schedule C deduction is worth more to a driver than to a W-2 employee because it lands ahead of both taxes. It reduces net profit, which reduces the 92.35% figure, which reduces self-employment tax - and it reduces adjusted gross income, which reduces income tax. One expense, two savings.

Run the same driver without a mileage log. Profit becomes $19,600, net earnings subject to the tax become $18,101, and self-employment tax jumps to $2,769. The log is worth $1,468 in self-employment tax alone, before a dollar of income tax savings. That is the honest case for tracking every mile, and why the 2026 standard mileage rate matters more to drivers than any other number in the tax code.

The same logic applies to the smaller stuff. Phone plan percentage, hot bags, tolls and parking, roadside coverage: each one shaves both taxes. Our list of gig driver deductions beyond mileage walks through what qualifies and what does not.

The half you get back

You may deduct one-half of your self-employment tax when figuring adjusted gross income on Form 1040, per Tax Topic 554. In the worked example that is $650. It is an above-the-line deduction, so you take it whether or not you itemize, and Schedule SE calculates it for you.

One limit worth knowing: the half-deduction reduces income tax only. It does not reduce the self-employment tax itself, so do not budget as though the bill were 7.65%. Two other above-the-line items stack in the same place for many drivers - the self-employed health insurance deduction and, further down the form, the qualified business income deduction, which also leaves self-employment tax untouched.

The Social Security cap and the 0.9% add-on

The 12.4% Social Security portion stops at an annual ceiling. For 2026 the Social Security wage base is $184,500, per the Social Security Administration, up from $176,100 in 2025. Any W-2 wages you earn count against that ceiling first, which matters for drivers with a day job.

The 2.9% Medicare portion has no ceiling at all - it applies to every dollar of net earnings. Above $200,000 for single filers, $250,000 for married filing jointly and $125,000 for married filing separately, an Additional Medicare Tax of 0.9% applies as well. Very few full-time drivers reach these lines, but a driver with a high-earning spouse and a joint return can.

How you are supposed to pay it

Self-employment tax is settled on your annual return, but the IRS expects it prepaid during the year. For 2026 income the estimated tax due dates are April 15, June 15 and September 15, 2026, and January 15, 2027, per Form 1040-ES. Miss them and underpayment penalties accrue even if you pay in full by April.

A workable reserve for most drivers is 25% to 30% of net profit, covering the roughly 14.13% self-employment component plus a bracket's worth of income tax. It is a planning rule, not a calculation - the right percentage depends on your other income, filing status and state. Our guide to quarterly taxes for gig drivers sets out the safe-harbor rules, and if you are already behind, the missed estimated payment catch-up playbook covers the penalty math.

What to track so the number is right

Everything above depends on one input: an accurate net profit. Gross earnings come from platform statements. Deductions come from your own records, and the largest of them - mileage - is the one no platform documents for you in a form the IRS accepts.

The standard is a contemporaneous record showing date, miles, destination and business purpose for each business use. That is the same log that defends the deduction if anyone asks, as covered in the mileage log that survives an IRS audit. Reconstructing it in April is exactly what the rule excludes.

GigOdo detects drives automatically, timestamps them, and totals your deduction at both 2026 rate bands as the year runs, so the profit figure your self-employment tax depends on is a record rather than a guess. The free tier has no trip cap.

Bottom line

Self-employment tax is 15.3% on 92.35% of your profit, about 14.13% all in, owed from $400 of net earnings and invisible until it lands. It is not avoidable, but it is proportional to profit, and profit is the number your records control. Every documented mile is worth about 14 cents in self-employment tax before income tax even starts. Explore the rest of the gig driver tax guides to put the whole return together.

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FAQ

What is self-employment tax for gig drivers?

Social Security and Medicare tax for people without an employer: 15.3% total, made up of 12.4% Social Security and 2.9% Medicare (IRS Tax Topic 554). It is charged on top of income tax, and platforms withhold none of it.

How much do I have to earn before I owe it?

$400 of net earnings from self-employment - profit after expenses, not gross pay (Tax Topic 554). It applies whether or not a platform sends you a form.

Why 92.35% of my profit?

The IRS taxes 92.35% of net earnings from self-employment, mirroring the employer share an employee never pays tax on. Combined with the 15.3% rate, the effective bite is about 14.13% of net profit.

Does the mileage deduction reduce self-employment tax?

Yes. It is a Schedule C expense, so it lowers profit before the tax is figured. Roughly $141 of self-employment tax saved per $1,000 of mileage deduction, plus income tax on top.

Can I deduct half of the tax?

Yes - one-half of your self-employment tax is deductible in figuring adjusted gross income, itemizing or not. It reduces income tax only, never the self-employment tax itself.

Is there a cap?

The 12.4% Social Security portion stops at the 2026 wage base of $184,500 (SSA), counting W-2 wages first. The 2.9% Medicare portion has no cap, and 0.9% Additional Medicare Tax applies above $200,000 single or $250,000 joint.

When do I pay it?

Through quarterly estimates during the year, then settled on Schedule SE with your return. For 2026 income: April 15, June 15 and September 15, 2026, and January 15, 2027 (Form 1040-ES).

Do I owe it with no 1099?

Yes. With the 2026 thresholds at $20,000/200 transactions for 1099-K and $2,000 for 1099-NEC, many drivers get no form - the profit is still reportable and still subject to the tax.

Sources: IRS Tax Topic 554, Self-employment tax; IRS, Self-employment tax (Social Security and Medicare taxes); SSA contribution and benefit base, 2026; IRS Notice 2026-10; IRS Announcement 2026-11 (IRB 2026-29); IRS tax year 2026 inflation adjustments (Rev. Proc. 2025-32); IRS Form 1040-ES; IRS news release IR-2025-107 (1099-K threshold); OBBBA Sec. 70433 (1099-NEC threshold). This article is general information, not tax advice.