Balance due & the collection ladder
A request for payment of an unpaid balance — functionally a member of the balance-due family, most often seen on business and employment-tax accounts, but it appears on individual accounts too.
Handle it
A request for payment of an unpaid balance — functionally a member of the balance-due family, most often seen on business and employment-tax accounts, but it appears on individual accounts too.
Why you got it: An assessed balance (tax, penalty, or interest) is unpaid on the account named in the notice.
Not a levy notice and not an audit. It's a bill with a pay-by date — the mistake is filing it as junk mail because the code is unfamiliar.
Your first move: Match the tax period and amount to your records; pay by the printed date or call the number on the notice to arrange or dispute.
The clock on this letter: Pay or respond by the date printed on your notice.
The printed date controls. Interest and penalties run until the balance is handled.
By the printed date, with the voucher.
Monthly payments pause the enforcement track.
Employment-tax balances especially deserve a records check — one misapplied deposit creates this letter.
Pay with the voucher or online; questions go to the phone number printed on the notice.
Verify period and amount in your account or transcript before paying — CP161 is a code scammers borrow.
The account follows the same ladder as any balance: reminders, intent-to-levy, lien, levy.
Where this sits on the ladder: CP503 → CP504 →
One payment. No subscription. Yours to keep — every notice, every letter, every script.