US Tax Estimator

Track your gig income and estimate your U.S. federal taxes in seconds — no account, no ads, no data collection, works fully offline.

NOT A GOVERNMENT APP: US Tax Estimator is published by LYU LLC, a private company. It is not affiliated with, endorsed by, or operated by the IRS, SSA, FinCEN, or any other U.S. government agency. Every source used in the app is listed under OFFICIAL DATA SOURCES below.

GIG LEDGER (NEW)
• Log income, expenses, and business mileage as you go
• Running year-to-date totals with your net profit and estimated federal tax — income tax + self-employment tax — updated on every entry
• See your next quarterly estimated payment and its due date
• Year-end CSV export for your CPA, plus a shareable summary
• Optional voice/dictation quick-entry — just say "twenty dollars for gas"
• 100% on your device — no account, no upload, no cloud sync

FEDERAL INCOME TAX
• 2025 and 2026 tax year brackets — switch years with one tap
• All four filing statuses: Single, Married Filing Jointly, Married Filing Separately, Head of Household
• Standard deduction (post-2025 law) or your own itemized amount
• Child tax credit with income phase-out
• See taxable income, tax owed, marginal rate, effective rate, and a bracket-by-bracket breakdown

SELF-EMPLOYMENT TAX
• Schedule C net profit → SE tax in one step
• Social Security wage-base coordination with your W-2 wages
• Medicare and Additional Medicare (0.9%) handling
• Shows the deductible half of SE tax

DEADLINES
• Key 2026 federal deadlines: quarterly estimated payments, individual and business return due dates, and extension dates
• Optional local reminders before each deadline — notifications are scheduled on your device only

CROSS-BORDER TOOLS
• Quick checker for common foreign-asset filings: FBAR (FinCEN 114), Form 8938, and Form 3520 foreign-gift reporting
• Answers a simple question: based on your numbers, do these filings likely apply to you?

PRIVATE BY DESIGN
• No internet access, no account, nothing leaves your phone
• Your ledger is stored only on your device — no cloud sync, no server, ever
• The only permission is notifications, used solely for the optional deadline reminders

Available in English, 简体中文, 繁體中文 and Español.

OFFICIAL DATA SOURCES
Complete list of sources for all government information in the app (also linked in-app: More tab → Official sources):
• 2025 tax brackets & inflation adjustments — IRS Rev. Proc. 2024-40: https://www.irs.gov/pub/irs-drop/rp-24-40.pdf
• 2026 tax brackets, standard deduction, child tax credit — IRS Rev. Proc. 2025-32: https://www.irs.gov/pub/irs-drop/rp-25-32.pdf
• 2025 standard mileage rate — IRS Notice 2025-05: https://www.irs.gov/pub/irs-drop/n-25-05.pdf
• 2026 standard mileage rate — IRS Notice 2026-10: https://www.irs.gov/pub/irs-drop/n-26-10.pdf
• Social Security wage base & payroll tax rates — IRS Topic 751: https://www.irs.gov/taxtopics/tc751
• Self-employment tax rates — IRS: https://www.irs.gov/businesses/small-businesses-self-employed/self-employment-tax-social-security-and-medicare-taxes
• Additional Medicare Tax (0.9%) — IRS Topic 560: https://www.irs.gov/taxtopics/tc560
• Quarterly estimated payments & due dates — IRS Form 1040-ES: https://www.irs.gov/forms-pubs/about-form-1040-es
• Filing & extension deadlines — IRS Publication 509: https://www.irs.gov/publications/p509
• Corporate deadlines & estimated tax — IRS Form 1120 instructions: https://www.irs.gov/instructions/i1120
• FBAR (FinCEN Form 114) — FinCEN: https://www.fincen.gov/report-foreign-bank-and-financial-accounts
• Form 8938 reporting thresholds — IRS: https://www.irs.gov/instructions/i8938
• Form 3520 foreign gifts — IRS: https://www.irs.gov/businesses/gifts-from-foreign-person

DISCLAIMER: Estimates use simplified rules and cover federal taxes only — not tax advice. For personal guidance, consult a professional.

Published by LYU LLC · yz-cpa.com