Cost to own a pontoon boat in Maine

Example: the SunChaser 21 Lr Dh, 21' 8", at its published builder price of $54,119 (sunchaserboats.com). It is the middle-priced of 160 pontoon / tritoon models with a published price ($23,970 – $418,939).

Sourced costs, cash purchase, Maine
CostAmountBasis
Sales/use tax (once)$2,9775.5% (36 M.R.S. §1811(1)(D), sales on or after Oct 1, 2019) -- proof of sales tax required for new registration.
Title (once)$0No title required at this length.
Registration (per year)$60$60 every 1 yr (horsepower tier 116-+ hp, inland waters).
Maintenance (per year)$5,41210% of boat value, a rule of thumb from discoverboating.com; not a measured average.
Property tax—Yes - municipal watercraft excise tax — not included in these totals.
At purchase (tax + title)$2,977plus the boat price
Per year, sourced lines$5,472about $456/month; partial

Costs you add yourself

We have no official per-state figure for these, so they are not in the totals above.

Run the full calculator for this boat

More: Maine boating rules · all pontoon / tritoon models

Sources

State rules checked 2026-10-24. Fees change; confirm with the agency. Calculated with the same engine as the true cost tool.