MSC demurrage and detention in the US: tariff, free time and last free day calculator

What we hold

• Tariff documents we read (we link them, we do not copy them):
  • https://assets.msc.com/api/public/content/c6a1d9a1a9f14f7097ca911e735f0188
• US ports with their own entries: USPEF. Other ports follow the carrier's general US entries where the tariff gives them.

Free days, rates and the way days are counted are in the carrier's tariff and are applied on the dates you enter, below. A contract with the carrier may give more.

Last free day calculator

MSC publishes its own US demurrage and detention tariff and its dispute and payment instructions on its site: https://www.msc.com/. We link to it and do not copy it.

Before you pay

Compare the invoice with the tariff and with the contract. If the free time or the daily rate does not match, or the invoice leaves out what the FMC requires:

Updated: 2026-10-21