Tracking receipts for taxes with PM company

For property owners with out-of-state investments, is it necessary to keep all receipts and invoices for write-offs during tax season, even smaller jobs performed by the PM's handyman? I recently had our PM buy and install new smoke alarms. In the portal (they're using Buildium) we have a breakdown of the labor and smoke alarm costs, but there are no receipts attached. For context, we had a plumber come recently and this expense did result in a receipt uploaded to the portal. For minor maintenance like buying and installing smoke alarms with the PM's handyman, is it necessary for me to have copies of these receipts when tax season comes around? And is it a reasonable thing to ask for from a PM?