You can actually pay your tax due online using the IRS's website. Here's where you can go to pay your tax due: https://www.irs.gov/payments ... View more

If you had to pay anything out of pocket for the surgery, you can list it as a medical expense. Here are the steps for entering medical expenses: Medical, dental, and vision expenses are reported on Schedule A and entered in the Deductions & Credits section: Open your tax return. (To do this, sign in to TurboTax and click the orange Take me to my return button.) Search for Schedule A and then click the "Jump to" link in the search results. Answer Yes on the Did you have any medical expenses in 2016? screen. You will then be prompted to enter your medical expenses, starting with prescriptions. If you're using Federal Free Edition or Basic and your medical expenses are large enough that you would benefit from itemizing deductions, you'll be prompted to upgrade to Deluxe, as the Federal Free and Basic versions do not handle Schedule A. ... View more

If you haven't received your return yet, you should wait to file your Amended (changed) return until you do. Once you have your refund, or paid your tax due (whichever the case may be), you can amend by following these instructions: Log into your TurboTax account Click on My TurboTax, this will take you to your Tax Timeline Under the information about your 2016 return, you will see a list of Some Things You Can Do In this list, you'll see an Amend (Change) Return option. When you click it, you'll be asked if you're sure you want to amend, and then you'll be able to go back into your 2016 return and make whatever changes you need to. (in your case, you'll need to revisit the Personal Info section and edit the information about yourself.) Please note: Amended returns cannot be e-filed. You will have to print and file the amended version by mail. ... View more

If you paid your Tax Due with your card, you can keep the vouchers for your records, but otherwise, you don't need them. ... View more