Form 5498 is issued by the custodian of your IRA account. You do not need to enter this form in TurboTax. Keep for your records. The same is true for a Form 5498-SA. See below.
https://ttlc.intuit.com/questions/1900644-what-do-i-do-with-form-5498
https://turbotax.intuit.com/tax-tools/tax-tips/Taxes-101/What-Is-IRS-Form-5498-/INF14779.html