Get your taxes done using TurboTax

And note, that you are not filing any actual tax forms quarterly (other than a payment voucher and a check if you pay by mail ).......you are just pre-paying an estimate of your taxes quarterly, based on your profit for that quarter, so that you don't get hit with a huge tax bill and potential penalties when you do end up filing your complete full-year tax return forms at tax-time.

____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*