TaxFlow: 1099 Tax Calculator

Know exactly what you owe — before the IRS tells you. TaxFlow is a simple quarterly tax estimator for freelancers, contractors, gig workers and anyone paid on a 1099. Log your income and business expenses, and TaxFlow instantly calculates your self-employment tax, federal income tax and the amount to pay each quarter. KNOW WHAT YOU OWE • Real-time estimate of your total tax for the year • Self-employment tax (15.3%) with the deductible half applied • Federal income tax using the current brackets and standard deduction • Your effective tax rate, so you know how much of each payment to set aside NEVER MISS A DEADLINE • All four IRS estimated tax due dates (Form 1040-ES) • Countdown to your next payment • Mark payments as paid and track what's left EVERY LINE EXPLAINED • See every line of the calculation, from gross income to total tax owed • IRS safe harbor guidance to help you avoid underpayment penalties TRACK INCOME & WRITE-OFFS • Add income from every client, platform or gig in seconds • Track deductions: home office, equipment, travel, meals, software, marketing and more US & UK SUPPORT • United States: federal + self-employment tax, tax years 2024–2026 • United Kingdom: Self Assessment Income Tax + Class 4 National Insurance, payments on account TAXFLOW PRO Unlock unlimited entries, every payment date and PDF export of your tax summary. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel any time in your App Store account settings. Privacy Policy: https://sites.google.com/view/taxflow/privacy-policy Terms of Use: https://sites.google.com/view/taxflow/terms-of-use TaxFlow provides estimates for planning purposes only and is not tax, legal or financial advice. Consult a qualified tax professional for your specific situation.