Trump Tax (US)
Estimate your US federal tax under the TCJA (Trump-era tax cuts). Enter taxable income and effective rate to instantly compute tax owed, net income, and gross total with charts.
About This Calculator
The Trump Tax (US) calculator helps you estimate your US federal income tax liability under the Tax Cuts and Jobs Act (TCJA) of 2017 — commonly called the Trump tax cuts. Enter your taxable income and expected effective tax rate to instantly compute your tax amount, net income after tax, and gross total including tax.
Your effective tax rate represents the average percentage of income you pay in federal taxes after accounting for deductions, credits, exemptions, and progressive tax brackets. Unlike your marginal tax rate — the rate on your last dollar earned — the effective rate gives you a holistic view of your overall tax burden. For example, a single filer earning $100,000 in 2025 with the $15,000 standard deduction would have roughly a 13-15% effective rate, far lower than their 22% marginal rate.
The calculation uses the formula: Tax = Taxable Income x Effective Tax Rate / 100. To find your effective rate, divide your total federal tax paid (from your tax return) by your total taxable income. This calculator is ideal for US taxpayers who want a quick, back-of-envelope estimate without navigating complex progressive bracket calculations.
Who Should Use This Calculator
The Trump Tax (US) calculator is useful for: salaried employees estimating their annual tax bill, freelancers projecting quarterly estimated tax payments, retirees planning Roth conversions or capital gains harvesting, and anyone evaluating how changes to their income might affect their overall tax burden under the TCJA framework. The results help with budgeting, withholding adjustments on Form W-4, and comparing different tax scenarios.
Regional Notes
United States (US): The TCJA, signed into law in December 2017, lowered individual income tax rates across all brackets, nearly doubled the standard deduction to $15,000 for single filers in 2025, increased the child tax credit to $2,000 per qualifying child, and limited state and local tax (SALT) deductions to $10,000. Many TCJA provisions are scheduled to sunset after 2025 unless extended by Congress. For 2025, single filers face seven brackets: 10%, 12%, 22%, 24%, 32%, 35%, and 37%. Married couples filing jointly have brackets at twice the single thresholds. This calculator focuses on federal income tax only and does not account for FICA (Social Security and Medicare), state income tax, or self-employment tax.
Frequently Asked Questions
How does the Trump Tax calculator work?
Enter your taxable income and the effective tax rate you expect to pay. The calculator computes the tax amount owed and your net total (income minus tax) instantly using the formula: Tax = Income x Rate / 100.
What is the Trump-era tax framework?
The Tax Cuts and Jobs Act (TCJA) of 2017, commonly called the Trump tax cuts, lowered federal income tax rates, nearly doubled the standard deduction, and made other changes to US tax brackets and deductions. Many provisions are set to expire after 2025.
What is the effective tax rate vs marginal tax rate?
Your marginal tax rate is the rate you pay on the last dollar of income (your highest bracket). Your effective tax rate is the average rate you pay across all income -- total tax divided by total income. This calculator uses the effective rate to give a quick estimate.
Is this calculator free to use?
Yes, the Trump Tax (US) calculator is completely free to use with no registration or account required.
Can I share my calculation results?
Yes. All input values are saved in the URL, so you can copy the page URL and share it with anyone. When they open the link, the calculator will restore your inputs and show the same results.
What are the 2025 US federal income tax brackets?
For 2025, the US federal income tax brackets for single filers are: 10% ($0-$11,925), 12% ($11,926-$48,475), 22% ($48,476-$103,350), 24% ($103,351-$197,300), 32% ($197,301-$250,525), 35% ($250,526-$626,350), and 37% ($626,351+). These are the TCJA brackets adjusted for inflation.
How do I find my effective tax rate?
Your effective tax rate is your total federal income tax divided by your total taxable income. You can find this from your most recent tax return: look at line 24 of Form 1040 (total tax) and divide by line 15 (taxable income). Multiply by 100 to get a percentage.
What is the difference between taxable income and gross income?
Gross income is your total income before any deductions. Taxable income is your gross income minus the standard deduction or itemized deductions and other adjustments. For 2025, the standard deduction is $15,000 for single filers and $30,000 for married couples filing jointly. You pay tax on your taxable income, not your gross income.