Can I somehow file to get the Third stimulus check of $1400 I never got
If you did not receive your 3rd stimulus check here are some steps to check on it an file for it.
If eligible, you may claim the recovery rebate credit by filing your 2021 return. See steps below to check status and eligibility.
Individuals who didn't receive a third-round payment should contact the IRS as soon as possible to see if a payment trace is needed.
It may be needed if their IRS Online Account shows a payment they didn't receive or they received a notice or letter indicating they were issued a payment.
People do not need to wait until their payment trace is complete to file their 2021 tax return. They can use the information from their Notice 1444-C, Letter 6475 or their Online Account to file.
If an individual hasn't received a third-round payment or any information from the IRS, they should check their eligibility.