How to Calculate IRS Tax

Calculating Internal Revenue Service taxes can seem complex and confusing. For the most part, the process is just that. However, with the aid of a computer and tax preparation software, calculating your taxes can be made much easier than it seems.

1. Acquire all of the appropriate paperwork that you will need to  help you make your calculations. If you do not have all of your paperwork, you will have to resort to guessing when making your calculations, and the likelihood of making errors increases greatly. Collect all W-2s, itemized expenses and other receipts that will help you through the process.


2. Purchase a tax preparation software such as TurboTax. Tax preparation software, which can also be found online, asks you questions about your finances, family status and employment. Based on the answers that you give to the questions, the software can make calculations. When purchasing tax software, be sure that you purchase software that corresponds to the correct year. Using software from the wrong year will result in improper calculations. You can also do the calculations manually by using the appropriate IRS forms and a calculator. Although this process is more difficult, some people prefer this method.


3. Enter all of the appropriate amounts into the computer or onto the forms. After the proper calculations are made, you will find the final amount. Either you will owe the government money or you will receive a payment from the government. Remember that improper calculations could cause you to receive an IRS audit.