Use the H&R Block online tax return calculator and estimator for free in order to estimate a tax refund or the money owed the Internal Revenue Service, according to H&R Block. To use the calculator, input data into four different tabs, including About You, Your Income, Your Expenses and Your Results.
As of April 2015, an orange bar along the top of the income tax return estimator shows the refund or the money owed, notes H&R Block. In the About You tab, use the drop-down menu to select a filing status among five choices. Input your age as of the end of the tax filing year, and click on the drop-down menu to pick the number of dependents to claim on the tax return. Click the green Next button to proceed to the Your Income section.
Type in figures for your income from your W-2 form and wages other than those on the W-2, says H&R Block. Other income categories include interest, dividends, state income tax refunds, rent and Social Security benefits. Click the Next button to move to the Your Expenses section, where you input itemized deductions such as mortgage interest, charitable donations, student loan interest, child care expenses and job expenses. Click on Next to see the summary of your results.
Create an account to save your results on HRBlock.com. You also have options to file taxes online through the company's website or make an appointment at the nearest H&R Block office.