This calculator is designed to compute the federal income tax from one’s income over time. You can set the parameters for the income you make on a year to year basis. Then you can input your filing status and associated data, as well as any deductions, and get your federal income tax. The graph will also display your net income after the federal income tax.
Right now, this calculator is optimized for tax year 2025, and assumes that the current values, brackets and ratios will roughly hold steady throughout time. For more information about tax year 2025 changes, you can see the IRS tax inflation adjustments for 2025 for year-by-year adjustments as well as this IRS fact sheet and the Summit Tax Planning LinkedIn for information about how the One Big Beautiful Bill Act (OBBB) will affect future taxes.
Our financial calculator system is built around the idea that you should be in control of your finances and your financial future. Our calculator lets you create your own graphs of how your finances will change over time, giving you control of the calculation process so you can see what works best for you. Because of this customizable approach, you can build and save your own templates for any calculations you may need. Our modular system means that any types of calculations we offer can be built into larger financial models and arranged for more unique types of operations.
Once you have a graph of the data you want, you can go and head to the bottom of the page. Here you can export your data as a spreadsheet for later use or save your income tax calculator for later. Your calculator is saved as a link, which means you can share your calculator link with others too! Clicking on the link you save will restore the calculator you were working with instantly.
If you are looking for financial calculators other than our income tax calculator, you can find our full library of calculators here.