Tax Calculator – Sales Tax, US Income Tax & VAT, Free

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Tax Calculator

Three instant tax tools in one: sales tax for any rate worldwide, a US federal income tax estimator using official 2025 brackets, and a VAT add/remove flip tool. Live results, formulas shown, everything calculated privately in your browser.

✓ Sales Tax · ✓ US Income Estimator · ✓ VAT Flip · ✓ 100% Private

🔧 JS ⏳ · Input — · Result — · Engine ⏳

Price before tax ($)

Sales tax rate (%)

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Tax amount

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Pre-tax price

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Total

Formula: tax = price × rate ÷ 100 · total = price + tax. Works for any country's sales tax, GST or consumption rate.

🇺🇸 Estimator for US federal income tax, 2025 tax year, single filer — using official IRS brackets and the $15,000 standard deduction. It ignores state tax, credits, and itemized deductions, so treat it as a rough estimate only. Verify everything with the IRS or a tax professional.

Gross annual income ($)

Apply standard deduction ($15,000)

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Taxable income

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Effective rate

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Marginal bracket

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After-tax income

Bracket-by-bracket breakdown

Amount ($, €, £, ₹…)

VAT / GST (%)

Your amount includes… Price WITHOUT VAT — add it Price WITH VAT — remove it

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Net price

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VAT amount

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Gross price

Remove-VAT formula: net = gross ÷ (1 + rate ÷ 100). Used for UK VAT, EU MwSt, Indian GST, Australian GST and similar value-added systems.

How to Calculate Sales Tax

Tax = Price × Rate ÷ 100   ·   Total = Price + Tax

Example: a $100 purchase at an 8.5% sales tax rate owes $8.50 in tax, for a $108.50 total. Working backwards — if you only know the total, divide it by (1 + rate ÷ 100) to recover the pre-tax price; that is exactly what the VAT/Reverse tab does. Sales tax rates vary wildly: US rates are set state + county + city (0% to around 10%), while VAT/GST countries build the rate into listed prices, which is why the same "tax calculator" query needs different tools per country.

How US Federal Income Tax Brackets Work

The US uses marginal brackets — each rate applies only to the slice of income within that bracket, not your whole income. For 2025, single filers: 10% on the first $11,925; 12% to $48,475; 22% to $103,350; 24% to $197,300; 32% to $250,525; 35% to $626,350; 37% above. The standard deduction ($15,000 single, 2025) is subtracted first, so only taxable income is taxed.

Example — $65,000 gross, single, standard deduction: taxable income = $50,000. Tax = 10% × 11,925 ($1,192.50) + 12% × 36,550 ($4,386) + 22% × 1,525 ($335.50) = $5,914. Your marginal rate (22%) is the tax on your next dollar; your effective rate ($5,914 ÷ $65,000 ≈ 9.1%) is what you actually pay overall — always lower than the marginal bracket. That distinction is the single most misunderstood idea in tax conversations.

⚠️ This estimator deliberately simplifies: it excludes state income tax, Social Security and Medicare payroll taxes, tax credits (Child Tax Credit, EITC), capital gains rates, and itemized deductions. Real liabilities are usually lower with credits and higher with state tax. Use it to understand the mechanism — use a professional or IRS Free File for your actual return.

Why Use This Tax Calculator?

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Any-Rate Sales Tax

Enter your local rate — works for every US jurisdiction and every country's consumption tax.

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Real 2025 Brackets

The US estimator uses official IRS marginal brackets and the standard deduction — not a flat-rate guess.

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VAT Both Directions

Add VAT to a net price or strip it out of a gross price — for UK, EU, Indian and Australian users.

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Bracket-by-Bracket

The US estimator shows each marginal slice and its tax — you see exactly how the math builds.

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100% Private

Income figures and prices never leave your browser — nothing sent, stored, or logged.

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Instant & Offline

Pure browser math on every keystroke — no account, no limits, no internet needed.

Popular Use Cases

• 🛒 Price an item with your local sales tax before reaching the register
• 💵 Estimate US federal tax on a salary, freelance income or raise
• 🔄 Strip VAT out of a European receipt to see the true net price
• 🧾 Add GST/VAT to an invoice line for international clients
• 📈 Model how a raise changes your marginal bracket and after-tax income
• 🎓 Learn marginal-vs-effective rates with the bracket breakdown

Pro Tips for Tax Math

• Marginal ≠ effective: landing in the 22% bracket does not mean 22% of your income is taxed — only the slice above the last threshold. The estimator shows both rates side by side so the difference is visible.
• A raise can't cost you money: because brackets are marginal, moving up never reduces after-tax income. The folklore about "losing money to a higher bracket" confuses marginal with effective rates.
• Sales tax stacking: US rates often stack state + county + city. Enter the combined rate here rather than computing layers separately — the result is identical and faster.
• VAT-inclusive pricing: when a receipt shows one gross number, the remove-VAT direction recovers both the net price and the tax portion — essential for expense claims and B2B invoicing.
• Everything here estimates: bracket thresholds change annually, states differ, credits apply per person. Confirm real figures with your tax authority or a qualified professional.

Frequently Asked Questions

Multiply the price by the tax rate and divide by 100 — a $100 item at 8.5% owes $8.50, totaling $108.50. Enter your local rate in the Sales Tax tab and both figures appear instantly.

For US federal tax, enter your gross income in the Income Tax tab — it subtracts the $15,000 standard deduction, applies each 2025 marginal bracket to its slice, and reports the total, your effective rate, and after-tax income. State tax and credits are excluded, so treat the result as an estimate.

Divide the gross price by (1 + VAT rate ÷ 100). A $120 total at 20% VAT hides a $100 net price and $20 VAT. Set the VAT tab to "Price WITH VAT — remove it" and enter your rate; all three figures appear.

Your marginal rate is the tax on your next dollar earned — the bracket your top income slice lands in. Your effective rate is total tax divided by total income, which is always lower. A single filer earning $65,000 has a 22% marginal rate but roughly a 9% effective federal rate.

No — by design. State income taxes, payroll taxes, tax credits and itemized deductions vary too much to combine honestly in one simple tool. The estimator covers federal brackets plus the standard deduction only, and says so clearly rather than guessing.

Anywhere — you supply the rate. That includes all US state and local rates, Canadian GST/PST combos (enter the total), UK VAT, EU MwSt/TVA, Indian GST, Australian GST and more. The math is universal; only the rate changes.

No. Every calculation runs in your browser with JavaScript. Your income, prices and rates are never transmitted or stored — refreshing the page clears everything.

No. This is an educational estimator using published 2025 US federal brackets and general sales/VAT math. It cannot know your full situation. For filing decisions, use the IRS tools, official software, or a qualified tax professional.