Yes. Driving for Amazon Flex is self-employment for tax purposes. Amazon’s contractor agreement classifies you as an independent contractor, the IRS treats you the same way, and the practical result is that you owe both income tax and self-employment tax on your net earnings, with nothing withheld along the way. The self-employment tax alone runs 15.3% of your net earnings before income tax even enters the picture, so understanding how this classification works is the difference between a manageable tax bill and an unpleasant surprise in April.
Why Flex Drivers Are Self-Employed
Two things line up here, and they rarely do so cleanly.
First, the contract. Before you accept your first delivery block, Amazon requires you to agree to the Amazon Flex Independent Contractor Terms of Service. The agreement states plainly that the relationship is not employment, that you provide your own vehicle, phone, and equipment, and that Amazon will not withhold income taxes, Social Security, or Medicare from your pay. No health insurance, no paid leave, no retirement contribution. Every dollar Amazon deposits is gross pay.
Second, the IRS test. A contract alone doesn’t settle worker classification; the IRS looks at how the relationship actually functions across three areas: behavioral control, financial control, and the nature of the relationship.1Internal Revenue Service. Independent Contractor or Employee Flex drivers pick their own blocks and set their own schedules. They supply the car, pay for gas, maintenance, and insurance, and absorb the wear and tear. There’s no promised ongoing work and no benefits structure. All three factors point in the same direction, which is why the self-employment classification is well-settled for Flex work.
What You Owe and How You Report It
You report your Flex earnings and business expenses on Schedule C (Profit or Loss from Business), which files with your personal Form 1040.2Internal Revenue Service. About Schedule C (Form 1040), Profit or Loss from Business (Sole Proprietorship) The net profit from Schedule C feeds two separate calculations: regular income tax and self-employment tax.
If Amazon pays you $600 or more in a year, you’ll receive a Form 1099-NEC showing your total earnings.3Internal Revenue Service. Instructions for Forms 1099-MISC and 1099-NEC The trap: the tax is owed whether or not you get a 1099. Self-employment tax kicks in once your net earnings hit $400 for the year, and income from Flex is taxable from the first dollar regardless of what forms show up in the mail.4Internal Revenue Service. What to Do with Form 1099-K
Self-Employment Tax
W-2 employees split Social Security and Medicare taxes with their employer, each side paying half. As a self-employed driver, you cover both halves. The rate is 15.3%, made up of 12.4% for Social Security and 2.9% for Medicare, and it applies to 92.35% of your net earnings.5Internal Revenue Service. Topic No. 554, Self-Employment Tax
The Social Security portion applies only to earnings up to $184,500 in 2026.6Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet The Medicare portion has no cap. If your total self-employment earnings pass $200,000 (or $250,000 married filing jointly), an additional 0.9% Medicare tax applies to the amount above the threshold.7Internal Revenue Service. Topic No. 560, Additional Medicare Tax
One built-in break: you can deduct half of your self-employment tax when calculating your adjusted gross income. This deduction goes on Schedule 1 and reduces the income subject to regular income tax, though it doesn’t reduce the self-employment tax itself.8Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes)
Quarterly Estimated Payments
Because nothing is withheld from your Flex pay, the IRS expects you to pay as you earn through quarterly estimated tax payments that cover both income tax and self-employment tax. The due dates are:9Internal Revenue Service. When to Pay Estimated Tax – Individuals
- April 15, for income earned January through March
- June 15, for income earned April through May
- September 15, for income earned June through August
- January 15, for income earned September through December of the prior year
You calculate the payments using Form 1040-ES.10Internal Revenue Service. Estimated Taxes Skipping quarterly estimates isn’t just deferring a bill. The IRS charges an underpayment penalty even if you’re ultimately owed a refund. If you’re new to Flex and unsure what to set aside, a common starting point is 25 to 30% of each deposit, adjusted as you track your actual deductions.
Deductions That Lower the Bill
Deductions are the practical upside of self-employment. Every legitimate business expense you claim on Schedule C reduces your taxable income, which lowers both your income tax and your self-employment tax. The catch: you need records, not memory.
Vehicle Expenses
Your car is your biggest business tool, and vehicle costs are usually the largest deduction Flex drivers take. You have two methods, and you pick whichever produces the bigger deduction.11Internal Revenue Service. Topic No. 510, Business Use of Car
The standard mileage rate lets you deduct 72.5 cents for every business mile driven in 2026.12Internal Revenue Service. IRS Sets 2026 Business Standard Mileage Rate at 72.5 Cents per Mile This rate covers gas, depreciation, insurance, repairs, everything. It’s simpler to track because you only need a mileage log. A driver who puts 15,000 business miles on the car in a year would deduct $10,875.
The actual expense method involves totaling every vehicle-related cost (gas, oil changes, tires, repairs, insurance, registration, depreciation) and deducting the percentage used for business.13Internal Revenue Service. Publication 463, Travel, Gift, and Car Expenses If 60% of your driving is deliveries, you deduct 60% of those costs. It takes more record-keeping, but it can produce a bigger deduction, especially for older cars needing frequent repairs or vehicles with heavy fuel use.
Whichever method you pick, start logging miles from your first block. A mileage tracking app running in the background is the easiest approach, and the app itself is deductible.
Other Business Expenses
Beyond the vehicle, several other costs qualify:
- Cell phone, for the portion of your monthly bill used for the Flex app, navigation, and delivery communication. If roughly 40% of your phone use is business, you deduct 40% of the bill.
- Supplies and equipment: phone mounts, car chargers, insulated delivery bags, flashlights.
- Parking and tolls paid during delivery blocks.
- Software and subscriptions: mileage trackers, bookkeeping apps, other tools tied directly to the work.
A separate bank account or credit card for business expenses makes tax time dramatically easier. When everything runs through one account, you spend hours picking through twelve months of personal transactions to find deductible purchases.
Health Insurance Premiums
If you pay your own health insurance and show net profit on Schedule C, you can deduct premiums for medical, dental, and vision coverage for yourself, your spouse, and your dependents. It goes on Schedule 1 and reduces your adjusted gross income directly; you don’t have to itemize.14Internal Revenue Service. Instructions for Form 7206
The main limitation: you can’t claim the deduction for any month you were eligible for a subsidized plan through an employer, your spouse’s employer, or a parent’s employer if you’re under 27. Eligibility alone disqualifies you, even if you never enrolled.
Retirement Accounts Built for Self-Employment
Losing an employer 401(k) doesn’t mean losing tax-advantaged retirement saving. Two accounts fit Flex drivers well.
A Solo 401(k) lets you contribute in two roles. As the employee, you can defer up to $24,500 in 2026, with higher catch-up amounts if you’re 50 or older. As the employer, you can add up to 25% of net self-employment earnings after deducting half your self-employment tax. The combined total is capped at $72,000 in 2026, not counting catch-up contributions.15Internal Revenue Service. 2026 Amounts Relating to Retirement Plans and IRAs
A SEP IRA is simpler to set up. You can contribute up to 25% of net self-employment compensation, capped at $72,000 in 2026.16Internal Revenue Service. SEP Contribution Limits (Including Grandfathered SARSEPs) There’s no employee deferral piece, so at lower income levels a Solo 401(k) shelters more. Both are pre-tax and reduce your taxable income in the year you contribute.
One Deduction Worth Checking Before You File
Through the 2025 tax year, self-employed sole proprietors could deduct up to 20% of qualified business income under Section 199A, created by the 2017 tax overhaul.17Internal Revenue Service. Qualified Business Income Deduction For a Flex driver with $30,000 in net profit, that was worth up to $6,000 off taxable income.
The provision expired on December 31, 2025. Whether it’s available for 2026 depends on whether Congress extended it. Check the IRS site or ask a tax professional before filing your 2026 return, because if the QBI deduction was renewed, leaving it off is an expensive miss.