Solved
Is there a way to check that I filled the section out correctly, and if not, is there a way to change it?
The only way to change it is to amend your return, but you would not want to do that until your refund has bee received or payment processed. If you did not enter it correctly, it will not agree with the information the IRS has on file. In that case, they will send you a letter proposing a change to your tax return, and telling you the amount you owe or are due back.
You can wait till your refund or payment is processed and amend, or you can wait on the IRS to make an adjustment, if necessary. FYI, if you owe any additional tax, the meter on penalties and interest will start after April 15.
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.