Form PT-350, Petroleum Business Tax Return for Fuel Consumption - Commercial Vessels

Change to Petroleum Business Tax Return Filing Frequency for Commercial Vessel Operators

Effective September 1, 2026, the frequency for filing Form PT-350, Petroleum Business Tax Return for Fuel Consumption – Commercial Vessels, has changed from monthly to annually.

Commercial vessel operators must:

continue filing Form PT-350 monthly for periods ending on or before August 31, 2026, and
file an annual Form PT-350 by March 22, 2027, for the short period September 1, 2026, through February 28, 2027.

Going forward, these operators must file Form PT-350 covering the period March 1 through February 28 (29 in a leap year), by the 20th day of the following month.

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Web File is FREE—No additional software needed

Use Petroleum Business Tax Web File to report and pay petroleum tax.

Benefits include:

automatic calculation of amount due
scheduled payments (up to the due date)
direct payment from your bank account
instant filing confirmation

E-file mandate

You must Web File if you:

do not use a tax preparer to file;
use a computer to prepare, document, or calculate your tax forms; and
have broadband Internet access.

If you don't meet the above conditions

Continue to paper Form PT-350, Petroleum Business Tax Return for Fuel Consumption - Commercial Vessels.

Updated: August 31, 2026