US Tax Estimator

[IMPORTANT GOVERNMENT DISCLAIMER]
• US Tax Estimator is an INDEPENDENT educational, planning, and estimation tool.
• This app DOES NOT represent, and is NOT affiliated with, authorized, sponsored, or endorsed by the Internal Revenue Service (IRS) or any other government entity.
• Official US tax forms, instructions, and official tax calculators can be found directly on the official IRS website: https://www.irs.gov

Take complete control of your paycheck and stop guessing your tax return! US Tax Estimator is a powerful, privacy-first tax calculator and W-4 optimizer designed to give you mathematically perfect projections without the high price tag of traditional tax software.

Whether you are a W-2 employee, a 1099 freelancer, or an active investor, this app helps you estimate how the federal tax code applies to your income and helps you make smart financial decisions in real-time.

WHY USE US Tax Estimator?
• 100% Free & No Ads: No paywalls, no locked features, and no annoying upsells. Just robust tax planning tools at zero cost.
• Privacy-First (No Servers!): Your financial data is nobody’s business but your own. We do not have backend servers. All your information is encrypted and stored locally right on your device.
• Mid-Year W-4 Sync: Punch in your latest YTD paystub info, and our smart engine will show you exactly how to adjust your W-4 Form to avoid a massive tax bill in April.
• Advanced Capital Gains Logic: Unlike simple calculators, we handle investment gains and losses correctly. The app calculates short-term vs. long-term rates and applies the IRS $3,000 net loss limit properly.
• Ready for the 2026 TCJA Sunset: The tax code is changing dramatically in 2026. US Tax Estimator is already built to handle both 2025 rules and the upcoming post-TCJA Sunset standard deductions, SALT limits, and mortgage interest rules.
CORE FEATURES:
• Interactive Income Dashboard: Add W-2 salaries, 1099 self-employment, pensions, Social Security, dividends, and interest.
• Smart Deduction Choice: We automatically compare the Standard Deduction against your Itemized Deductions (mortgage interest, charity, SALT, medical bills) and pick the one that saves you the most money.
• Tax Credit Tracking: Easily account for the Child Tax Credit and other key credits that lower your tax liability dollar-for-dollar.
• Estimated Payments: Keep track of the quarterly estimated tax payments you've made directly to the IRS.
Note: Currently, the app calculates Federal Income Taxes only. State tax calculations and an Excel export tool are actively in development

We are currently in active Open Beta. If you find a bug, have a feature suggestion, or want to share feedback, please leave a review. Your input helps us build the ultimate tax companion!

OFFICIAL GOVERNMENT INFORMATION SOURCES:
All tax formulas, brackets, and rules implemented in this independent calculation engine are derived from official public documents published by the Internal Revenue Service (IRS). You can verify these rules and access official services using the links below:

Official IRS Website:
https://www.irs.gov

IRS Tax Brackets and Rates (Revenue Procedure 2024-40 for 2025 Tax Year):
https://www.irs.gov/pub/irs-drop/rp-24-40.pdf

Official IRS Tax Withholding Estimator (Source for W-4 logic and calculations):
https://apps.irs.gov/app/tax-withholding-estimator

IRS About Form W-4 (Employee's Withholding Certificate):
https://www.irs.gov/forms-pubs/about-form-w-4

IMPORTANT USER DISCLAIMER:
• The tax estimations and W-4 projections provided by this app are for illustrative and educational purposes only. They do not constitute official tax, legal, or financial advice.
• While we strive to implement the tax code as accurately as possible, tax laws are highly complex and subject to change. Your actual tax liability may vary.
• Always consult with a licensed Certified Public Accountant (CPA) or professional tax advisor before filing your official tax return or making financial decisions.