With regard to an IRA contribution made in March 2022, unless you explicitly indicated to the custodian that the contribution was to be for 2021, the IRA custodian is required to treat and report it to you and to the IRS (via Form 5498) as a contribution for 2022.
Forms 5498 indicate the year for which a Roth IRA contribution is made, not the year in which the contribution is made. This means that if the custodian treated the contribution as a contribution for 2021, the custodian would have reported it on a 2021 Form 5498, not the 2022 Form 5498 where you indicate that the contribution will appear. Given this, there is nothing you can do now to cause the contribution to be a contribution for 2021 but it is instead a contribution for 2022; the deadline for this to be corrected was the regular due date of your 2021 tax return. If you this contribution was entered into 2021 TurboTax and it resulted in a Retirement Savings Contributions Credit that you were not otherwise eligible to receive, you must amend your 2021 tax return to remove the credit. You would also need to correct the contribution basis carried forward from your 2021 tax file to not include this contribution.
