2020 Tax Calculator & Planner (for 2021 filing)

At Simpleplanning.com we take the headache out of tax planning and filing with our easy to use and easy to understand Income Tax Calculator spreadsheet that works right in Microsoft Excel.

The Excel Tax Calculator Spreadsheet:

Estimate your 2020
Federal income tax in seconds!
Tax Estimator spreadsheet
Find out how much you owe,
or how much the IRS owes you!
Detailed Tax spreadsheet
Itemize your deductions
quickly and easily.
Tax Deduction spreadsheet
Your 1040 tax return
in Excel format.
1040 Tax spreadsheet


Unlike online tax calculators that lack the proper detail, our downloadable tax calculator spreadsheet was developed with detail in mind. The greater the detail, the higher the level of accuracy. Download the demo tax calculator spreadsheet and see for yourself.


Use our Excel Tax Calculator Online or Offline

Many tax software sites store your tax info online, so you can only access it while you're online. What if you'd rather not enter your personal financial information over the web? What if you'd rather do your tax planning offline? With our Excel Tax Calculator spreadsheet, you can use it whenever you like, online or offline.


Powered by MS Excel Spreadsheets

Whether you have worked with Excel spreadsheets or not, you will appreciate what our Excel based Tax Calculator can do. Because our Tax Calculator is an Excel spreadsheet, there is no additional software to set up... just download the spreadsheet and go! Click here to download our Tax Calculator demo spreadsheet.


It's Simple!

A lot of tax planning say their tax planners are simple to use. At Simpleplanning, we guarantee it. If you're not completely satisfied with our Excel Tax Calculator, we'll send you a full refund.



- 2020 Quick Tax Estimator
- 2020 Detailed Tax Calculator
- Tax Withholding (W-4) Calculator
- Itemized Deduction Calculator
- Child Tax Credit Worksheet
- Interest & Dividend Worksheet
- Form 1040 Excel Spreadsheet



Download our End User License Agreement



"I have been very impressed with the product, and have shown it to a number of colleagues. ...your product certainly makes it easy to have an excellent front end to show information to colleagues, while still giving the flexibility to add additional worksheets to customize the product. Once again, thank you."
-David Gardner, Manchester, England

"Just wanted to send a quick note to say how fab your spreadsheet is. I have found it extremely useful and would definitely recommend you to my friends."
-Nicola Hannigan-Baptiste, Kent, MI

"...why I switched to this spreadsheet instead of Quicken. I wanted something that was small and effective without all the overhead and after your help and quick feedback it looks like we have a winner here. Again thanks for your help."
-Mike Pfistner, Somerville, NJ




If for some reason you are not pleased with our Excel Tax Calculator & Planner, just let us know and we'll refund your money right away- we only want satisfied customers.


Uninstall Instructions

To uninstall our program, simply locate the Excel file on your computer, select it and press delete.

Since all of our programs are simply Microsoft Excel files, uninstalling is that easy.