Where do I mail IRS form 3911?

To mail IRS Form 3911, also known as the "Taxpayer Statement Regarding Refund," you should send it to the address provided in the instructions specific to your situation. Generally, if you are filing for a refund related to a Form 1040, you would send it to the address listed for your state in the IRS instructions. If you're unsure or need further assistance, it's best to visit the IRS website or contact them directly for accurate mailing information.