Yes, hanging onto old rent receipts is a smart move. They can help you if there are questions about past payments or even if you need them for taxes one day.
If that happens, it might be time for a chat. Politely remind your landlord that a receipt is important for keeping track of your payments. If they still refuse, consider keeping your own records.
While it's not always required, having a rent receipt is like having a safety net. It helps you track your payments and can come in handy if there are any disputes.