US state tax

Connecticut Highway Use Fee: permit and returns

Since January 1, 2023, Connecticut charges heavy trucks a per-mile fee based on weight. Profirm gets your HUF permit and files your quarterly returns.

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Key facts

Who is subject: Trucks of 26,000 lb and over, FHWA classes 8 to 13.
Rate: From US$0.025 per mile (26,000–28,000 lb) to US$0.10 (78,001–80,000 lb); US$0.175 over 80,000 lb.
Return: Quarterly (monthly only in 2023). Required even with no travel in Connecticut.
Due date: Last day of the month after the quarter.
Late: Penalty of 10% of the unpaid tax or US$50, whichever is greater, plus 1% interest per month.

The rate depends on each truck’s weight

Connecticut has 28 weight brackets. Each truck is reported in its bracket with its miles driven in the state. We classify your vehicles and do the math for you.

Already registered for IFTA?

An IFTA-registered carrier can add a HUF account to its file. The Connecticut miles from your IFTA return also feed the HUF: we prepare both together.

US state taxes

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