The amount on Line 20800 might have gotten added if you used the Canada Revenue Agency (CRA) AutoFill my Return (AFR) service and had an Unused RRSP Contribution that was automatically entered.

To check this:

If you are using TurboTax Online, you can search for RRSP contributions on the Tax Home page. 

If you are using TurboTax Desktop in EasyStep mode, select Registered Savings Plans>Registered Savings Plans Profile from the left side menu. 

If you are using TurboTax Desktop in Forms mode, you can search for the RRSP worksheet by clicking on the Forms icon in the blue icon bar.

I used the Autofill option. So how do I delete the RRSP amount that I did not enter. I did the search for "Registered", verified that no amount was entered but Line 2080 still shows am amount.

@H88Y 

Did you also check the section "Have unused RRSP/PRPP contributions from prior years " to see if anything carried forward from last year?

If you are still not able to resolve this issue, please contact our phone support team for more assistance. 

Yes, that is it. The problem is solved. Thank you very much!