A 1099 is the IRS form clients use to report payments made to non-employees — most commonly the 1099-NEC for contractor compensation and the 1099-MISC for other types of income. Receiving one means your client did not withhold any taxes, did not pay the employer share of FICA, and did not contribute to unemployment insurance on your behalf. Every dollar of that responsibility is now yours.
The 1099 Tax Calculator is designed exactly for this scenario. Enter your gross 1099 income, business expenses, state, and filing status, and it returns an estimate of federal income tax, state income tax, and self-employment tax — separately so you can see where the money actually goes. It supports all 50 states and all four federal filing statuses.
What 1099 contractors actually owe
Three taxes stack on contractor income. Self-employment tax (15.3% on 92.35% of net earnings up to the SS wage base, then 2.9% above it) covers Social Security and Medicare. Federal income tax follows the standard progressive brackets, applied to your taxable income after the standard or itemized deduction and the QBI deduction. State income tax depends entirely on where you live — it ranges from zero in states like Texas, Florida, and Washington to over 13% in California. The calculator handles all three layers.
When you receive a 1099 vs. when you don't
Clients are required to issue a 1099-NEC if they paid you $600 or more during the year. But you owe tax on every dollar of self-employment income whether or not a 1099 shows up — under-the-table cash, PayPal/Venmo business payments, app-based work, and small clients all count. Underreporting because "they didn't send a form" is a common audit trigger.
Deductions every 1099 contractor should track
Business expenses come straight off your gross income before tax is calculated, so a tracked $1 deduction saves roughly $0.30-0.45 in combined tax for most freelancers. The big categories: home office (simplified method = $5/sq ft up to 300 sq ft), business mileage (rate updated yearly by the IRS), health insurance premiums (above-the-line for self-employed), retirement contributions (SEP-IRA up to 25% of net SE income), software/subscriptions, professional development, and the half of SE tax that is deductible. The Self-Employment Tax Guide covers the mechanics in depth.
Quarterly estimated payments are not optional
If you expect to owe $1,000+ in total tax, the IRS expects four estimated payments at roughly April 15, June 16, September 15, and January 15, 2027 (2026 tax year). Skip them and you owe an underpayment penalty even if you pay your full balance in April. The simplest safe harbor: pay 100% of last year's tax (110% if your prior-year AGI was over $150k), divided into four equal payments. Plug your numbers into the 1099 Tax Calculator to get a quarterly target.
Setting your rates with taxes in mind
A $50/hour W-2 job and a $50/hour 1099 contract are not the same thing — the contractor nets significantly less after SE tax, missing benefits, and unbilled overhead. The Freelance Rate Calculator does the conversion for you, including 2026 federal brackets and SE tax, so you can quote rates that actually pay your tax bill.
Invoicing and income records
Every 1099 payment starts with an invoice. The total you invoice across the year is your gross self-employment income — the number on Schedule C line 1. Accurate invoicing means accurate tax records. Use the Free Invoice Generator to create professional PDF invoices in your browser: no signup, no watermark, and your client data never leaves your device.