Our tools
Self-Employment Tax Calculator
Estimate your 2025 Social Security + Medicare tax and federal income tax on 1099 income, with filing-status and standard-deduction handling.
Open calculator →Quarterly Estimated Tax Calculator
Split your estimated annual tax into four quarterly payments and see the 2026 IRS due dates, plus the safe-harbor rule that avoids penalties.
Open calculator →Mileage Deduction Calculator
Drivers: turn business miles into a 2026 tax deduction using the real IRS standard mileage rates ($0.725 / $0.76 per mile).
Open calculator →Invoice Generator
Create a clean, professional invoice in seconds and download it as a PDF. Great for freelancers billing clients.
Open tool →True Hourly Wage Calculator
Your app says $25/hr — but after gas, fees, and taxes? Find out what you really earn per hour.
Open calculator →Why GigFinance Tools?
Built for 1099 life
Generic tax calculators assume a W-2 salary. Ours start from how gig workers actually get paid: net self-employment earnings, deductible business miles, and quarterly payments — the things that surprise first-time freelancers every April.
Private by design
Every calculation runs entirely in your browser. We don't ask for your name, email, or income details, and nothing you type is sent to our servers — because there is no account system at all.
Free, no signup
All tools are free to use, unlimited, with no account and no paywall. We keep the lights on with ads, which is why you'll never be asked to "upgrade" to see a result.
Plain-language guides
Each calculator comes with a short guide explaining how the math works and what to watch out for — written for people filing as self-employed for the first time.
Frequently asked questions
Are these calculators really free?
Yes. Every tool on this site is free with no usage limits and no account required. The site is supported by advertising.
Is my financial data sent anywhere?
No. All calculations happen locally in your browser using JavaScript. We don't have user accounts, and the numbers you enter are never transmitted to us or anyone else.
Are the results tax advice?
No. The calculators produce good-faith estimates based on published 2025/2026 IRS figures (tax brackets, standard deductions, mileage rates). Everyone's situation is different — for decisions that matter, talk to a qualified tax professional or CPA.
Which tax year do the calculators use?
The self-employment and quarterly calculators use 2025 federal brackets and standard deductions (the return you'd file in 2026). The mileage calculator uses the 2026 IRS standard mileage rates, split between January–June and July–December as the IRS announced them.
Do I need to create an account or download anything?
No. Everything works right in your browser on phone, tablet, or desktop. The invoice generator's "Download PDF" button simply uses your browser's built-in print-to-PDF feature.
I'm new to self-employment. Where should I start?
Start with the Self-Employment Tax Calculator to see roughly what you'll owe, then check the Quarterly Estimated Tax Calculator — most 1099 workers are supposed to pay the IRS four times a year, not once in April.