OZ OwedZero
Free 2026 quarterly tax calculator · No bank login

Know your quarterly tax number in 60 seconds.

Type your income, answer four questions, and get your safe set-aside percentage and your next IRS 1040-ES payment — safe-harbor aware, W-2 blending included.

Get my number — free Android app

Built for the sub-$100K solo earner

DoorDash, Uber, Etsy, Upwork, freelance design, consulting — if income shows up without withholding, OwedZero tells you what April already knows.

Safe set-aside %

Your true marginal rate per 1099 dollar — SE tax, federal brackets, QBI, and your state — not a guess.

Safe-harbor quarterly engine

Computes both IRS methods (90% current-year vs 100/110% prior-year) and recommends the smaller, penalty-free.

Set-aside envelope

Log a payment, move the tax slice to your own savings, mark it done. Your money never touches ours.

Receipts → Schedule C

Snap a receipt; it lands on an IRS line with the 50% meals rule applied. Year-end preparer export included.

Mileage at 72.5¢/mi

2026 IRS rate with the date-miles-purpose log the IRS expects. Every 100 miles ≈ $72.50 off taxable income.

Every number shows its math

Tap any figure for the plain-English 1040-ES worksheet with your numbers. Deterministic engine, no AI in the math.

Freelancer tax questions, answered

The five questions every 1099 earner asks — same answers that power the calculator.

How much should I set aside for taxes as a 1099 freelancer?

Most US freelancers land between 20% and 35% of gross 1099 income. OwedZero computes your personal percentage from the 2026 IRS worksheet: self-employment tax (15.3% on 92.35% of net profit), federal income tax after the standard deduction and the 20% QBI deduction, plus a state estimate.

When are quarterly estimated taxes due in 2026?

April 15, June 15, and September 15, 2026, and January 15, 2027 for Q4. OwedZero counts down to each deadline and re-spreads what you owe across remaining quarters if you start mid-year.

What is the safe harbor rule for estimated taxes?

You avoid underpayment penalties by paying either 90% of this year's tax or 100% of last year's total tax (110% if last year's AGI was over $150,000) — whichever is smaller. OwedZero computes both and recommends the lower automatically.

Do I need to connect my bank account?

No — never. You log income in two taps and your data stays on your device.

What is the IRS mileage rate for 2026?

72.5 cents per business mile. OwedZero logs trips in the format the IRS expects and adds the deduction automatically.

Estimates for planning only — OwedZero is not a tax preparer and does not provide tax, legal, or accounting advice. Verify your situation with a qualified professional.