You may also need: Vehicle Registration Fee Calculator Connecticut
Registering a boat in Connecticut involves more than a single flat fee. Your final bill depends on your boat’s length, how old the hull is, what you paid for it, whether there’s a lien, and even where you bought it. This guide walks you through every calculation the Connecticut Boat Registration Fee Calculator performs — with two real-world examples at each step — so you know exactly what to expect before you walk into a DMV branch.
Step 1
Transaction Type: What Are You Actually Doing?
The very first thing the calculator checks is what kind of transaction you need. Connecticut treats a brand-new registration, a renewal, a transfer, and a duplicate certificate as four completely different processes — each with its own set of applicable fees.
If you simply need a duplicate registration (because your certificate was lost or destroyed), the calculator stops right there and charges you a flat $20 duplicate fee CT DMV · CGS §15-144. No registration fee, no title fee, no sales tax — just $20 and you’re done.
For everything else — new registrations, renewals, and transfers — the calculator moves through the remaining steps below.
Example A
Maria lost her registration certificate on a fishing trip. She selects “Duplicate” in the calculator.
Total: $20.00 — done.
Example B
James just bought a used 22-foot motorboat and needs to register it for the first time in Connecticut. He selects “New Registration” and continues to the next steps.
Continues to Step 2 →
Step 2
Registration Fee: Length and Hull Type
Connecticut sets registration fees primarily by boat length, as specified in Connecticut General Statutes (CGS) § 15‑144(b)(1). The longer your boat, the higher the base fee. There are 50+ length brackets, from under 12 feet ($7.50) all the way to 65 feet or more ($525.00).
Once the calculator knows your boat’s length, it applies a hull type multiplier. A fiberglass or metal hull pays the full fee. A wooden hull that is 15–24 years old pays 50% of the full fee. A wooden hull 25 years or older pays just 25% CGS § 15‑144(b). This discount is a deliberate legislative incentive to keep older, traditional wooden vessels on the water.
Several vessel types also get special flat fees regardless of length: non-houseboat pontoon boats pay a flat $40; motorized canoes, personal watercraft (PWCs), and nonprofit-owned vessels pay $7.50; and commercial fishing boats (where fishing accounts for at least 50% of income) are capped at $25 CGS § 15‑144(b); CT DMV.
| Boat Length | Full Fee (Fiberglass/Metal) | Wood 15–24 yrs (50%) | Wood 25+ yrs (25%) |
|---|---|---|---|
| Under 12 ft | $7.50 | $3.75 | $1.88 |
| 15–16 ft | $30.00 | $15.00 | $7.50 |
| 20–21 ft | $63.75 | $31.88 | $15.94 |
| 30–31 ft | $162.00 | $81.00 | $40.50 |
| 40–41 ft | $247.50 | $123.75 | $61.88 |
| 65 ft or more | $525.00 | $262.50 | $131.25 |
Example A
James has a 22-foot fiberglass motorboat. The calculator looks up the 22–23 ft bracket and applies the full rate.
Registration Fee: $78.75
Example B
Claire has a beautiful 30-foot classic wooden sailboat built in 1998 — making it 27 years old. She qualifies for the 25% wooden-hull discount on the $162.00 rate.
Registration Fee: $40.50 (25% of $162)
Step 3
Transfer Registrations
If you sold your old boat and bought a new one, Connecticut allows you to transfer your existing registration to the new vessel rather than starting from scratch. The transfer fee is just $1, plus any difference if the new boat’s standard fee is higher than what you originally paid CT DMV · CGS § 15‑144. You must submit the transfer paperwork within 30 days of acquiring the new boat.
This is a particularly useful rule for boaters who upgrade mid-season — instead of paying the full registration fee for a more expensive vessel mid-year, you simply pay the $1 transfer fee plus the fee difference, and your expiration date (April 30) stays the same.
Example A
Tom traded in his 20-ft boat (which was registered) for a 22-ft boat. He applies for a transfer within 30 days. The new boat’s fee is $78.75; his old fee was $63.75.
Transfer fee: $1 + $15 difference = $16
Example B
Dana downsized from a 30-ft boat to a 22-ft boat mid-season. The new fee is lower, so she only pays the flat transfer fee.
Transfer fee: $1.00 flat
Step 4
Title Fee
Connecticut requires boats of model year 2017 or newer to carry a state-issued title — similar to a car title. If your boat falls into this category, a $25 title fee is added to your total CT DMV Title Services · CGS § 15‑144.
Older boats (model year 2016 and earlier) do not require a CT title, so no title fee applies. This rule only triggers once — when you first register a newer boat in Connecticut. Renewals don’t re-charge the title fee unless you need a replacement title.
Example A
James bought his 22-ft motorboat brand new in 2024. Model year 2024 is newer than 2017, so a title is required.
Title Fee: $25.00
Example B
Claire’s wooden sailboat was built in 1998. Model year 1998 is well before 2017, so no title is needed.
Title Fee: $0.00
Step 5
Lien Fee
If your boat was financed and there is a lender with a security interest (i.e., a lien) recorded on the title, Connecticut charges a $10 lien recording fee CT DMV · CGS § 15‑144. This only applies when a title is also required — so boats from model year 2016 or earlier won’t trigger this fee even if they have a lien.
This fee covers the administrative cost of noting the lender’s interest on the official state title, which protects both buyer and lender.
Example A
James financed his 2024 motorboat through a bank. His loan means there’s a lien on the title. Since the boat also needs a CT title (model year ≥ 2017), the lien fee applies.
Lien Fee: $10.00
Example B
Maria paid cash for a 2019 boat — no financing, no lender.
Lien Fee: $0.00
Step 6
Passport-to-Parks Fee
Every new and renewed boat registration in Connecticut includes a mandatory Passport-to-Parks fee. This fee, which funds Connecticut’s state parks and recreation programs, was raised to $24 per year effective July 1, 2025, under Public Act 23-253 CT PA 23-253 · CT DEEP · CT DMV. It was previously $15.
The only exception is a duplicate registration — if you’re just replacing a lost certificate, you don’t pay this fee again. Every other transaction type (new, renewal, transfer) includes it.
Where does this money go? The Passport-to-Parks program funds maintenance, improvements, and operations across Connecticut’s state parks and boat launches — the very infrastructure that recreational boaters rely on most.
Example A
James is registering his boat for the first time in 2026. The fee applies to his new registration.
Passport Fee: $24.00
Example B
Claire is renewing her existing registration in March 2026. The annual passport fee is collected at renewal too.
Passport Fee: $24.00
Step 7
Connecticut Sales Tax
If you purchased a boat (new or used) and haven’t yet paid Connecticut sales tax, the calculator estimates what you owe. Connecticut charges 2.99% sales tax on boats purchased on or after July 1, 2018 (reduced from 6.35% to encourage boat sales, per a 2018 law change) CGS Title 12 · CT DRS · CT PA 2018.
Gifts and inheritances are fully exempt — no sales tax applies. If you bought the boat out of state and already paid sales tax there, Connecticut gives you a credit: you only owe the difference between your out-of-state tax and the CT rate. If you paid more elsewhere than CT would charge, you owe nothing additional.
⚠️ Important: Sales tax is not paid to the DMV — it’s paid to the Connecticut Department of Revenue Services (DRS). Bring proof of payment (or Form CERT-139 for out-of-state purchases) when registering.
Example A
James paid $35,000 for his 2024 motorboat in Connecticut in January 2026. He owes CT sales tax at 2.99%.
$35,000 × 0.0299 = $1,046.50
Sales Tax: $1,046.50
Example B
Kevin bought a $40,000 boat in New York and paid $2,400 in NY sales tax. Connecticut would charge 2.99% = $1,196. Since he already paid more than that out of state, nothing extra is owed.
Additional CT Tax: $0.00
Step 8
Late Registration Warning
Connecticut law requires you to register a newly purchased boat within 30 days of purchase. The calculator compares today’s date to your purchase date, and if more than 30 days have passed on a new registration, it displays a late registration warning.
Operating an unregistered vessel is a violation of Connecticut law. Penalties range from $25–$200 for a first offense and $200–$500 for repeat offenses CGS § 15‑144; CT DEEP Enforcement. The calculator flags this so you’re aware of potential enforcement risk before you head out on the water.
Example A
James bought his boat on January 15, 2026, but didn’t get around to registering until March 14 — 58 days later. That’s 28 days past the 30-day window.
⚠️ 28 days late — first offense fine risk: $25–$200
Example B
Sandra bought her boat on March 1, 2026, and registers on March 14 — just 13 days later, well within the 30-day window.
✓ On time — no warning issued
Step 9
The Final Total
Once every applicable fee has been calculated, the calculator simply adds them all together. The formula is straightforward: Registration Fee + Title Fee + Lien Fee + Duplicate Fee + Passport Fee + Sales Tax = Total. Each line is shown separately so you can see exactly what you’re paying and why.
It’s worth noting that AIS (Aquatic Invasive Species) stamps are no longer included in the DMV registration fee as of October 1, 2024 — per Public Act 23-154. You must now purchase a separate AIS sticker from CT DEEP ($7 individual / $20 per vessel) CT PA 23-154 · CT DEEP. The calculator notes this as a reminder.
Example A — James (New 2024 Motorboat, Financed)
Registration: $78.75 · Title: $25 · Lien: $10 · Passport: $24 · Sales Tax: $1,046.50
Grand Total: $1,184.25
Example B — Claire (1998 Wooden Sailboat, Renewal)
Registration: $40.50 · Title: $0 · Lien: $0 · Passport: $24 · Sales Tax: $0
Grand Total: $64.50
A Few Things the Calculator Doesn’t Cover
The calculator handles the DMV registration side of things, but there are a few additional costs to be aware of. Boat trailer registration is handled separately through the standard CT vehicle registration process, typically $43.50 for personal use. AIS stamps must be purchased directly from CT DEEP, as noted above. And if you plan to operate on federally navigable waters, your boat must display its CT registration number and decals per USCG requirements CT Boat Ed · USCG Boating Safety.
All Connecticut boat registrations expire on April 30 each year, regardless of when you registered. A renewal notice is mailed approximately 30 days before that date CGS § 15‑144; CT DMV. There is no multi-year registration option in Connecticut.
Sources & References
- Connecticut General Statutes § 15‑144 — Primary authority for all vessel registration fees, including the length-based fee schedule, wooden-hull discounts, pontoon flat fee, commercial fishing cap, and USCG Auxiliary exemption. CGS Title 15, Chapter 268.
- Connecticut Department of Motor Vehicles (CT DMV) — Vessel Registration Guide — Official DMV materials covering Form B-148 (Vessel Registration Application), Form H-6B (Title Application), Form H-31 (Bill of Sale), and the duplicate registration process (Form B-341). CT DMV, 2026.
- CT DMV Fee Tables — Source for the $25 title fee (model year ≥ 2017), $10 lien recording fee, and $20 duplicate registration fee. CT DMV official fee schedule.
- Connecticut Public Act 23-253 — Raised the Passport-to-Parks annual fee from $15 to $24, effective July 1, 2025. CT General Assembly.
- Connecticut Public Act 23-154 — Decoupled the Aquatic Invasive Species (AIS) stamp fee from DMV boat registration, effective October 1, 2024. Boaters must now purchase AIS stickers separately from CT DEEP. CT General Assembly.
- Connecticut Department of Energy and Environmental Protection (CT DEEP) — Source for AIS stamp pricing ($7 individual, $20 per vessel) and boating regulations. CT DEEP Boating Division, 2026.
- Connecticut Department of Revenue Services (CT DRS) — Sales Tax on Watercraft — Confirms the 2.99% sales tax rate for boats purchased on or after July 1, 2018, reduced from the prior 6.35% rate. CT DRS; CT General Assembly 2018 session.
- Connecticut Boating Safety Course (Boat Ed) — Source for registration number and decal display requirements, and operator requirements. CT DEEP / Boat Ed Official Course, 2026.
- CT DMV Transfer & Ownership Rules (CGS § 15‑147) — Governs the $1 transfer fee for registration transfers between vessels, and the 30-day notification requirement upon sale or change of ownership.
- CT DEEP Enforcement — Vessel Violation Penalties — Source for unregistered operation fines ($25–$200 first offense; $200–$500 subsequent offenses) under CGS Chapter 268.