The mortgage origination date was 2000, refinanced in 2003 lender is using refinance date as mortgage origination date?

Please enter the correct origiination date.

The mortgage origination date is the date the mortgage originated with the original lender. The mortgage acquisition date is the date that the reporting lender shown on the Form 1098 acquired the mortgage.

The mortgage acquisition date would apply if the mortgage was sold to another lender who was not the original lender of the mortgage.  

The IRS doesn't view the money you take from a cash-out refinance as income – instead, it's considered an additional loan. You don't need to include the cash from your refinance as income when you file your taxes

We have property that was originally owner financed in 1999.  Since then it was refinanced by the same person.  That person died in 2018.  His only heir (adult child) acquired/inherited  the mortgage.  We refinanced  again, this past Fall with this person.   What should the origination date be?  

In my previous post, I asked about the origination date, but should have also asked about the acquisition date also.  

The mortgage origination date would be the date you refinanced in 2020. 

When you refinance a mortgage (in this case a new lender), the old mortgage ceases to exist - it becomes a new mortgage. 

A new lender, new borrowers, new term, new interest rate, or new principal balance (cash-out or pay-down) would all mean that you got a new mortgage (some minor modifications excepted).