Explore federal income and filing tools for AGI, taxable income, filing status, refunds, payments, deductions, tax rates, and estimates.
Federal Income & Filing
Estimate total income, adjusted gross income, and taxable income from common Form 1040 income components, above-the-line adjustments, and the supplied standard or itemized deduction.
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Estimate how a proposed federal amended return changes the balance due or refund after comparing original and corrected tax, payments, credits, and any prior...
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Dependent Tax Impact Calculator. Estimate a user-supplied dependent-related credit after a phaseout assumption and the portion that can reduce current federal tax liability. Use...
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Estimated Tax Underpayment Penalty Calculator. Estimate an annual safe-harbor payment target, underpayment, remaining balance, and a simplified penalty estimate using entered tax, payments, rate,...
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Federal Income Tax Calculator. Estimate a transparent federal individual-income planning result for a selected tax year from gross income, adjustments, deduction, credits, other tax,...
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Filing Status Comparison Calculator. A taxpayer enters shared income, adjustments, deduction, and separate effective-rate assumptions to compare two filing-status estimates. Use it after a...
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Marginal and Effective Tax Rate Calculator. A taxpayer enters taxable income, tax paid, and a marginal-rate assumption to estimate effective rate and the tax...
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Standard vs Itemized Deduction Calculator. A taxpayer enters standard deduction, SALT, mortgage interest, charity, medical expenses, AGI, other itemized deductions, and rate to compare...
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Tax Refund or Tax Owed Calculator. A taxpayer enters tax before credits, nonrefundable and refundable credits, withholding, estimated payments, and other payments to estimate...
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Taxable Social Security Benefits Calculator. A retiree enters Social Security benefits, tax-exempt interest, other income, thresholds, inclusion rate, and tax rate to estimate provisional...
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