You can only file a tax return with the correct current Social Security number, even if it may have been compromised. You can either file now with the old number, or wait to file until after the Social Security administration has issued a new number.
Getting an identity protection pin is a very good idea. However, some additional comments. If an IP pin is issued, it won’t be effective for the 2020 tax season. It would be effective starting the 2021 season, and the pin is mailed to you in December of each year. The pin changes every year, and once you are in the system as having one, you will receive a new pin every December and you must use the new pin when you file. So it can be a bit of a burden to have one. Previously, the IRS would only issue IP pins to people who were proven victims of identity theft. Currently, the IRS is rolling out an IP pin opt-in program, and taxpayers from the states that are currently under the program can opt in even if they have not been victims of identity theft. I don’t think the entire country is opt-in yet.
