Income Tax Calculator exists for one moment: you got a raise, you’re comparing job offers, or you’re just curious what a number on a paycheck actually means once the federal government takes its share. Installing an app for that is overkill. So we built TaxLens, a free federal tax estimator that runs right here in your browser. Type an income, pick a filing status, and the tax owed, effective rate, and marginal rate update instantly.
Estimate your federal income tax
It opens with a working example already loaded: $65,000 income, filing single, standard deduction applied. Change any input and every number moves with it.
How to use it
Drag the income slider or type an exact figure. Switch between single and married filing jointly, which swaps in a different bracket schedule and standard deduction amount. Toggle the standard deduction off if you want to see the tax on gross income with no deduction applied at all.
There’s no “calculate” button. Every change recomputes the result immediately: the big number is your estimated federal tax, and below it sit your taxable income, effective rate, and marginal rate. The bar chart shows how your taxable income spreads across each bracket, with the bracket you’re currently in highlighted. Your inputs stay saved on your device between visits. Nothing leaves your browser.
How it compares to Income Tax Calculator
TaxLens answers one question well: roughly how much federal tax will this income generate, and at what rate. The full Income Tax Calculator app goes further, with detailed breakdowns for allowances, deductions, and tax slabs tuned to specific situations, plus the kind of line-item detail a real filing needs.
Neither TaxLens nor the app it’s inspired by actually files anything. A real filing season also involves state income tax, itemized deductions instead of the standard one, credits (child tax credit, earned income credit, education credits), self-employment tax if you freelance, and the paperwork of e-filing with the IRS or a state agency. None of that lives here.
We kept the core loop: change the numbers, watch the tax and the bracket chart move. We dropped every deduction and credit beyond the standard one, state taxes entirely, and any filing mechanism, on purpose, because a browser page you land on mid-search should give you a usable estimate in ten seconds, not a tax return. Use TaxLens to sanity-check a raise or compare take-home pay between two job offers. Use a real tax-prep service or a licensed preparer once you’re actually filing, especially if you have deductions, credits, or income beyond a single paycheck.
Get the full app
Income Tax Calculator is a free Android app built for quick, India-market-friendly tax estimation with more detailed slab and allowance options than a browser tool can offer.
Frequently asked questions
Is this an official tax calculator?
No. TaxLens is an original tool we built, using a standard progressive federal bracket schedule to produce an illustrative estimate. It is not affiliated with, endorsed by, or connected to the IRS, any state tax authority, or the makers of Income Tax Calculator. Treat the number it gives you as a starting point, not a filing figure.
Does this file my taxes?
No. TaxLens only estimates what you might owe based on the income, filing status, and deduction choice you enter. It doesn’t collect personal information, connect to any tax authority, or submit anything on your behalf. Filing still requires a tax-prep service, licensed preparer, or the IRS’s own e-filing system.
Is it free?
Yes. TaxLens has no signup, no paywall, and no ads. It runs entirely in your browser and works the same on a phone or a laptop.
Does it work offline?
Yes, once the page has loaded. All the calculation happens locally in your browser using JavaScript, and your inputs are saved in local storage on your device only. Nothing is sent to a server.
How accurate is this income tax estimate?
It’s a simplified illustration, not a substitute for real tax software. It applies a standard progressive bracket schedule and the standard deduction, but it skips state taxes, itemized deductions, tax credits, and self-employment tax, all of which can change your actual bill significantly. For an exact figure, use a tax-prep service or a preparer who can account for your full financial picture.
