Action needed
- Deadline that matters
- Pays-by date is ~21 days from the notice date. Interest and the failure-to-pay penalty keep accruing until it is paid.
- If you ignore it
- The account rolls into the collection notice stream (CP501 → CP503 → CP504) and penalties keep compounding.
- Is it fixable / over-assessed?
- Often the underlying number is right but the penalties are abatable (first-time abatement). Verify the balance matches your records before paying.
- Typical resolution path
- Confirm the balance, then either pay, set up an installment agreement, or dispute if it is wrong. Check penalty abatement first.