You need to use Forms mode to open Form 5329 Part IX
the penalty is 10% of the amount on line 52a
you can request a waiver, then Line 54a will be -0-.
explanation statement: will explain to the IRS why you missed the RMD, what action you took that they should waive your penalty. Include dates and amounts. This is required if you request a waiver.
@TStotik