If the amount of taxes withheld from your paycheck during the year was not enough to take care of most of your tax liability, the IRS requires you to make estimated payments so that you will not have a shortage the next year. Underpayment of taxes can result in fines and interest due. If TurboTax generated the estimated payment vouchers for 2020, the amount you need to send with each one is already on the voucher. If you choose not to pay estimated taxes (and it's not too late to do so), have your employer deduct more each month from your paycheck to make up the difference.
