Find ways to reduce your tax burden
💡 Why This Matters Your standard deduction is automatic — everyone gets it. This tool shows the additional tax savings you get specifically from your own retirement contributions (401k/IRA), on top of that.
Because U.S. tax brackets are marginal, moving into a "higher bracket" never lowers your take-home pay overall — only the income above each threshold is taxed at the higher rate, not your entire income.
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Tax optimization is the strategic process of minimizing your tax liability through legal means. By understanding tax brackets, deductions, credits, and investment strategies, you can keep more of what you earn and grow your wealth faster.
The US uses progressive tax brackets, meaning different portions of your income are taxed at different rates. Understanding your marginal tax rate (the rate on your last dollar of income) helps you make smarter decisions about additional income, deductions, and retirement contributions.
Standard Deduction: For 2025 (filed in 2026), $15,750 for single filers and $31,500 for married filing jointly. Itemizing only makes sense if your deductions exceed this amount.
Retirement Accounts: 401(k) contributions reduce taxable income now; Roth accounts grow tax-free. Traditional IRA contributions may be deductible.
Home Office: If self-employed, you may deduct a portion of your home expenses.
Business Expenses: Deductible if ordinary and necessary for your trade.
Municipal Bonds: Interest is federally tax-free and often state tax-free.
Health Savings Account (HSA): Triple tax advantage—contributions, growth, and withdrawals for medical expenses are all tax-free.
Qualified Dividends: Taxed at lower capital gains rates rather than ordinary income rates.
Use this tool to estimate potential tax savings from different strategies. Remember that tax laws are complex and change frequently. For personalized advice, consult a qualified tax professional who understands your specific situation.
Example: Say you're single with $75,000 income and contribute $5,000 to a 401(k). Tax before deductions: roughly $12,317 on $75,000 using 2025 brackets. Taxable income after: $75,000 − $15,750 (standard deduction) − $5,000 (retirement) = $54,250, taxing to roughly $6,948. Estimated savings ≈ $5,369 from the standard deduction plus retirement contribution combined.
No — this tool only estimates federal income tax. State tax rules vary widely, from no income tax at all in some states to their own progressive bracket systems in others, so your total tax picture will differ from this federal-only estimate.
Traditional 401(k) and IRA contributions reduce your taxable income dollar-for-dollar in the year you contribute, which can lower how much of your income is taxed at your highest marginal rate. Roth contributions don't reduce current taxable income but grow tax-free instead.
No. Your marginal rate is what you pay on your last dollar of income — the bracket you're technically "in." Your effective rate is your total tax divided by your total income, which is always lower than your marginal rate because of how progressive brackets work.