Instead of 10,651.71 I entered 1,065.17 for 401K and I already submitted.How baby of a mistake was this and can i fix it.

[dmertz]

Where did you make this entry error?
Are you eligible for a Retirement Savings Contributions Credit on For 8880?

[JohnW15]

This is a mistake that you'll need to fix and, unfortunately, you'll need to amend your return to correct it.

Please see the TurboTax FAQ "How to amend (change or correct) a return you already filed," below, for instruction on how to amend your previously-filed tax return.

https://ttlc.intuit.com/replies/3288565