Amount You Want Applied to Your 2021 Estimated Tax

Hello, 

In my 2020 tax return, I selected the option to apply the $765 amount that was overpaid to be applied to 2021 estimated taxes. 

 

In October 2021, a $462.61 refund was received from the United States Treasury with no support other than Austin 12/2020 Tax Refund 30 written on the lower left hand corner of the check.  No other correspondence was received from the IRS related to calendar 2020.

 

As I complete my 2021 return, should I still assume that I applied $765 from my last years return - or do I need to subtract the $462.61 and only consider the net amount as having been applied to the 2021 taxes?  

 

Thanks