If you’re self-employed, you’ll need to estimate your taxes for the year so you can make quarterly estimated payments. To calculate your quarterly estimated tax, figure your amount for the entire year, then divide that into four payments. You can use our Tax Calculator or walk through the IRS worksheet on estimated taxes.
Once you have your four amounts for the year, make sure you pay those amounts by the deadlines: April 15, June 15, September 15, and January 15 of the following year. The deadline will be the next business day if any of these dates should fall on a holiday or weekend.