h1 { font-size: 13pt; font-weight: bold; } [Skip to Content] 1040 Tax Calculator Now updated for the One Big Beautiful Bill. Enter your filing status, income, deductions and credits, and the tool will estimate your total taxes. Based on your projected tax withholding for the year, the tool also estimates your tax refund or the amount you may owe the IRS. Javascript is required for this calculator. If you are using Internet Explorer, you may need to select to 'Allow Blocked Content' to view this
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