The e-filing service fee is billed once per return, based on how many vehicles are on it — the more trucks on one return, the more it costs to file, same as the IRS's own per-vehicle tax.
Buy a discounted bundle of return credits sized to your fleet and file without paying the per-vehicle service fee each time. Each package is scoped to its fleet size (or, for an amended return, to that filing type) — pick the one that matches how you file.
Create an account and see your exact price before you pay anything.
Form 2290 Heavy Highway Vehicle Use Tax, figured with the IRS TY2026 rate tables (tax period July 1, 2026 – June 30, 2027).