I don't really understand financing, and so I have a question about a real estate loan. I have a loan on a piece of property that the seller financed, so there's no mortgage company involved. I have an amortization report here that tells me that for payment number X there is a certain amount for interest, a certain amount for principal, and the total remaining balance. If I make extra principal payments, how does that affect the report? Do we just drop down to the payment number that matches the remaining balance and continue from there, or do I have to get a new amortization report each time? If the former is correct and we just move up to the matching payment number, how best should that be documented? Gracias, feel free to PM me if you need more detail. Additionally, a recommendation for a finance primer would be appreciated.