This tool is intended to help you determine how much federal income tax you would owe given the data you provide. Unlike a program for doing your taxes, which performs many more calculations, this tool just computes the amount of the tax given the values you enter. This allows you to experiment with different values to see the effect on your taxes. In addition, this makes it very easy to enter information and get an immediate answer.
The blue fields are computed from the information you provide. The green fields are where you enter information. The first column shows where the information can be found in the tax return. Click this link for more help with this tool.
The tax formula below describes, at a high level, how the tax is calculated. The value of each item in the tax formula is shown in the Estimated Tax Calculation. You can see a brief description of any of the items by moving the mouse over the calculated value in the Estimated Tax Calculation.
Total Income
= Income from all sources - Non-taxable Income
Adjusted Gross Income
= Total Income - Adjustments
Taxable Income
= Adjusted Gross Income - Deductions
Total Tax
= Tax on Taxable Income + Other Taxes - Non-refundable Credits
Refund / Amount Due
= Total Tax - Payments - Refundable Credits
Estimated Quarterly Tax Payments
= Amount due + Estimated Payments / 4
Taxpayer's Name
Version
Filing Status
Today's Date
0
Taxpayer's Birthday
Taxpayer's Age
0
Spouse's Birthday
Spouse's Age
0
1040, line 9
Total Income
0
1040, line 10
Adjustments
0
1040, line 11
Adjusted Gross Income
0
1040, line 12
Deductions
0
1040, line 15
Taxable Income
0
1040, line 16
Tax on Taxable Income
0
1040, line 23
Other Taxes
0
1040, line 20
Non-refundable Credits
0
1040, line 24
Total Tax
0
1040, line 32
Refundable Credits
0
1040, line 25, 26
Payments
0
1040, line 34, 37
Refund(-) / Amount Due(+)
0
1040-ES
Estimated Quarterly Tax Payments
0
1040, line 1z
Wages
1040, line 2a
Tax-exempt Interest
1040, line 2b
Taxable Interest
1040, line 3a
Qualified Dividends
1040, line 3b
Ordinary Dividends
1040, line 4b-5b
Retirement Accounts, Pensions, Annuities (taxable amount only)
1040, line 6a
Social Security (total amount received: SSA-1099, box 5)
1040, line 7
Capital Gains
1040, line 7
Self-employment Income
1040, line 8
Other Income
1040 S2, line 4
Self-employment Tax
1040 S2, line 8
Early Withdrawal Tax
1040, line 23
Other Taxes
1040 S1, line 11
Educator Expenses
1040 S1, line 13
Health Savings Account Contributions
1040 S1, line 15
Self-employment Tax Adjustment
1040 S1, line 17
Self-employed Health Insurance
1040 S1, line 18
Early Withdrawal Penalty
1040 S1, line 19
Alimony Paid
1040 S1, line 20
IRA Contributions
1040 S1, line 21
Student Loan Interest
1040 S1, line 25
Other Adjustments
1040, line 13a
Qualified Business Income Deduction
1040 S1-A, line 13
Qualified Tips Deduction
1040 S1-A, line 21
Qualified Overtime Deduction
1040 S1-A, line 30
Car Loan Interest Deduction
1040 S1-A, line 37
Enhanced Deduction for Seniors
Schedule A, line 1
Medical Insurance
Schedule A, line 1
Doctor Visits
Schedule A, line 1
Prescription Medication
Schedule A, line 1
Medical Aids
Schedule A, line 1
Long Term Care Insurance (taxpayer)
Schedule A, line 1
Long Term Care Insurance (spouse)
Schedule A, line 1
Medical Miles
Schedule A, line 1
Other Medical Expenses
Schedule A, line 5a
State Income Tax
Schedule A, line 5a
Sales Tax
Schedule A, line 5b
Real Estate Property Tax
Schedule A, line 5c
Personal Property Tax
Schedule A, line 10
Mortgage Interest
Schedule A, line 11
Cash Gifts to Charity
1040 S1-A, line 10
Non-cash Gifts to Charity
Qualified Charitable Distribution
Schedule 3, line 1
Foreign Tax Credit
Schedule 3, line 2
Credit for Child and Dependent Care Expenses
Schedule 3, line 3
Education Credit
Schedule 3, line 4
Retirement Savings Contribution Credit
Schedule 3, line 5
Residential Energy Credit
Schedule 3, line 6
Other Non-refundable Credits
Schedule 3, line 9
Premium Tax Credit
1040, line 19
Child Tax Credit, Credit for Other Dependents
1040, line 27
Earned Income Credit
Schedule 3, line 13
Other Refundable Credits
1040, line 25d
Withholding
1040, line 26
Estimated Taxes Paid