This year, the property suddenly told me that we didn't pay the property fee on 20 13, but I couldn't find the receipt again. What should I do?

First of all, according to the principle of litigation interruption, the time limit for recovering property fees is 2 years. If the property can't provide valid evidence to recover the property fee within 2 years, then you don't have to pay the property fee of 20 13 to 10 at least, that is, if the property goes to court for prosecution.

Again, look for the receipt. In the future, it is best to handle card payment or bank withholding business. At least the paper records are gone, so you can check the expenditure records of bank cards.