Proof of residency request from a tenant

[Julia Marg]

My tenant of three years has asked me for a written and signed proof of residency. She says it’s for tax purposes. Just wondering if anyone has received this request and if it’s legitimate. I have always been able to prove my own residency with a lease, bill, or drivers license and have never had to prove my residency for taxes.

[Bill Ward]

Local school here does the same thing, requests a signed letter from the landlord proving residency. It's dumb.