It is possible to obtain an official payoff letter from the IRS. To request this, you can use the IRS's Form 12277 (Application for the Withdrawal of Filed Form 668(Y), Notice of Federal Tax Lien) or contact the IRS directly for the payoff amount, as it can vary depending on your case.
First, you'll need to contact your lender and let them know you want the information. Depending on your lender, you may have to sign in to an online account, call a helpline, or send a formal letter to start the request process.
A bank confirmation letter serves to assure all concerned parties in a business transaction that the bank's customer (the borrower) has, or has available, the necessary financial resources to conclude the transaction.
Instead, you have to get a 10-day payoff estimate from your current lender, which includes the amount you owe, as well as any interest that might accrue on the principal balance in the next 10 days.