1040 Tax Calculator (Tax Year 2013)
Use this 1040 tax calculator to help estimate your tax bill using the 2013 tax year's rates and rules.
How the 1040 tax calculator (tax year 2013) works
For 2013 it deducts adjustments, the greater of itemized or the $6,100 standard deduction, and exemptions, then runs taxable income through the 2013 brackets — the first year the 39.6% top rate returned — and compares to withholding.
Worked example: with gross income of $75,000, adjustments (401k, hsa, etc.) of $6,000 and number of exemptions of 1, the 1040 tax calculator (tax year 2013) shows estimated balance due of $1,679.
- Taxable income
- $59,000
- Federal tax
- $10,679
- Effective rate
- 14.2%
- You owe
- -$1,679
The formula
Taxable income = income − adjustments − max(itemized, $6,100) − exemptions; 2013 tax from the brackets; refund = withholding − tax.
Results are estimates for educational purposes and are not financial advice. Confirm exact figures with your lender, plan administrator or advisor.
Questions about the 1040 tax calculator (tax year 2013)
What changed for 2013?
The top marginal rate rose to 39.6% on high incomes, and new Medicare surtaxes began. The 2013 single standard deduction was $6,100; each exemption was $3,900.
How accurate is the estimate?
It is a solid federal approximation using the 2013 brackets and deductions, but excludes credits, AMT, surtaxes and state tax.
Can I use this to amend a 2013 return?
As a check, yes — but file amendments using the official IRS forms and instructions for that year, ideally with a tax professional.
Is the 1040 Tax Calculator (Tax Year 2013) free to use?
Yes. Every calculator on FinCalculators is completely free, with no sign-up, login or paywall. You can run as many scenarios as you like.