No, quarterly payments are not mandatory. But if you expect to owe at least $1000 at tax time next year, making estimated quarterly payments can help you avoid a big tax bill and/or an underpayment penalty. If your return printed out those four 1040ES vouchers for quarterly payments, they are optional. The IRS does not require you to use them.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
