Tax Estimate Calculator

Formatting only. This does not change the calculation.
Wages plus other ordinary income, before deductions.
Used only when the deduction type is itemized.
Above-the-line items such as deductible retirement contributions, HSA and student loan interest.
Non-refundable and refundable credits applied after tax is computed.
Taxed at the preferential 0/15/20% rates rather than the ordinary brackets.
Net profit from a business or a farm, entered separately from the gross income above. It is added to income, carries self-employment tax, and one half of that tax is deducted above the line.
W-2 wages use up part of the Social Security wage base before self-employment earnings reach it.
Form 1040 line 2a. Added back for MAGI under 26 U.S.C. 36B(d)(2)(B).
Amounts excluded under section 911. Added back for MAGI.
The part of benefits not included in gross income. Added back for MAGI.
Applies that state's own published rate schedule on top of the federal result.
A flat effective rate, used when no state is selected above.
Form 1040 total tax for the previous year. Sets the safe harbour for estimated payments.
Above $150,000 ($75,000 if married filing separately) the prior-year safe harbour rises to 110%.
Tax after credits
10,149
US Federal Income Tax Calculator
Taxable income
69,250
Adjusted gross income (AGI)
85,000
Modified adjusted gross income (MAGI)
85,000
Federal income tax
10,149
Self-employment tax
0
Long-term capital gains tax
0
Total tax
10,149
Refund (positive) or amount due (negative)
-10,149
Effective tax rate
11.94 %
Marginal tax rate
22 %
Deduction applied
15,750
Income after federal tax
74,851
Tax bracket
22% bracket (taxable income $48,475 to $103,350)
State income tax
0
Federal and state tax combined
10,149
Combined effective tax rate
11.94 %
Required annual estimated payment
9,134.1
Estimated payment per instalment
2,283.53
Tax filing jointly
5,943
Tax as two single filers
10,149
Marriage bonus (positive) or penalty (negative)
4,206
Tax year
2025 (Rate tables: IRS Rev. Proc. 2024-40, section 2.01. Standard deduction: IRS Rev. Proc. 2025-32, section 3.01 (post-OBBBA, IRC 63(c)(7) as amended by P.L. 119-21), which removed Rev. Proc. 2024-40 section 2.15(1).)
State basis
no state tax applied
Worked out from IRS Revenue Procedure 2024-40, inflation-adjusted items for tax year 2025 and 8 other sources.
Without last year's total tax the safe harbour falls back to the current-year percentage alone; entering the prior-year figure usually lowers the required payment.
An estimate based on published IRS rate tables. It does not model every credit, phase-out, AMT, or state tax. Confirm with a tax professional or IRS guidance before relying on it.

How this is worked out

7 steps
  1. Adjusted gross income = 85000 - 0 adjustments = 85000
  2. Less the standard deduction of 15750 gives taxable income 69250
  3. 10% on 11925 (from 0 to 11925) = 1192.5
  4. 12% on 36550 (from 11925 to 48475) = 4386
  5. 22% on 20775 (from 48475 to 103350) = 4570.5
  6. That puts the last dollar in the 22% bracket (taxable income $48,475 to $103,350).
  7. Required annual payment (26 U.S.C. 6654) = lesser of 90% of this year's 10149 (9134.1) = 9134.1; less 0 withheld, over 4 instalment(s) = 2283.53 each.
Tax by brackettable
ratefromtotaxableAmounttax
10%011,92511,9251,192.5
12%11,92548,47536,5504,386
22%48,475103,35020,7754,570.5

Results are general information, not financial, tax, legal, medical or engineering advice.