Assuming this is the first time, your basis goes on Form 8606 Lines 1,3, 14.
If you decide to file it, do not pay any $50. fee.
It is recommended to attach the Form 8606, only, to Form 1040-X.
Since no dollare amounts are changing on Form 1040-X leave lines 1-23 EMPTY.
In Part III explain why you are filing Form 8606.
If you filed a Joint return there is a taxpayer 8606 and a spouse 8606.
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