Anonymous
Not applicable

Retirement tax questions

Overstatement Penalty (from form 8606 instructions) 

If you overstate your nondeductible contributions, you must pay a $100 penalty, unless you can show reasonable cause.


so I would file an amended return  can't guarantee the IRS won't asses penalty anyway but you have nothing to loose.   this will also result in the correct basis when you rollover 2018 tt to 2019. tt