Duty payments must be remitted to USCB within 10 days of freight release.
This requires careful attentiveness to makes sure you pay each duty bill in a
timely manner to avoid fines for late payment.
Alternatively
The Periodic Monthly Payment (PMS) system can be used to pay bills once
per month, about the middle of the month for all merchandise entered the
previous month. So, instead of 10 days, you can extend payment up to 6
weeks on duty bills and you only get 1 bill per month.
To qualify for PMS, you must apply and be accepted, but we think the
benefits are well worth it for most importers.
City Business Brokerage