If I choose to pay by check, do you provide instructions on where to mail the check?

Yes. The IRS offers several different mailing addresses for making a tax payment as part of your tax extension, depending on your residency and the type of tax you’re remitting. As part of the FileLater service, we allow you to pay your taxes electronically using our secure system — or if you prefer, we also provide simple instructions on paying by check (including mailing addresses).