Used Yacht Documentation Checklist: What to Check Before Buying

20 July 2026 6 minutes Tags:

Buying a used yacht is exciting, but the paperwork is critical. Missing or incorrect documents can delay registration or lead to legal issues. This used yacht documentation checklist helps you verify everything before you commit.

Proof of Ownership: The First Document to Check

Every yacht registry requires proof of ownership. For a used yacht, this is usually a bill of sale from the seller. The bill must show the seller's name, the vessel details, and the purchase price. It should be signed by both parties.

If the yacht was previously registered, you also need a deletion certificate from the old flag state. This proves the vessel is free of prior encumbrances. Without it, the new registration cannot proceed.

Check that the seller's name on the bill matches the name on the deletion certificate. Discrepancies are common and cause delays.

VAT Status: Avoid Surprise Tax Bills

VAT liability depends on the yacht's customs status, not just the flag. A used yacht bought in the EU may have unpaid VAT if it was imported without payment. Ask the seller for proof of VAT payment, such as an invoice or customs document.

If the yacht was used commercially, VAT may have been reclaimed. This could affect its private use status. Get a written statement from the seller about VAT history.

Non-EU buyers may use Temporary Admission to avoid VAT, but only if the yacht stays in EU waters for limited periods. Always consult a specialist.

Survey Reports: Know the Vessel's Condition

A recent survey report is valuable, but check its date and scope. Some flags require a survey for yachts over a certain age. For example, the Cook Islands flag normally requires a survey for private yachts over 20 years old.

Commercial yachts need stricter surveys, often every five years. Ask for the latest survey certificate and any follow-up reports on deficiencies.

If the yacht is under 24 meters and used privately, many flags waive the survey. But a pre-purchase survey from an independent surveyor is still wise.

Registration Documents: Verify Current Flag and Status

Ask for a copy of the current certificate of registry. Check the expiry date and the flag state. Some flags, like the Cayman Islands, require annual tonnage fee payment by 28 February each year. Unpaid fees can lead to revocation of registration.

Also request the MMSI and radio license documents. These are often issued by the flag state and need renewal. A missing radio license can delay your own application.

If the yacht was registered under a Red Ensign flag (e.g., British Virgin Islands, Cayman Islands), the documents follow British maritime law. Note that the British Virgin Islands has been classified as non-cooperative on the EU list of non-cooperative jurisdictions since 2023, which may be relevant to buyers.

Builder's Certificate and Tonnage Certificate

The builder's certificate is the original document from the manufacturer. It proves the yacht's identity and specifications. If lost, the seller may provide a copy or a replacement from the builder.

The tonnage certificate measures internal volume and affects fees and regulations. Some flags may require a new tonnage certificate under certain conditions.

Check that the hull identification number (HIN) on the certificates matches the yacht's actual HIN. Mismatches are red flags.

Insurance Certificate: Often Overlooked

Most flags require proof of insurance before issuing registration. The policy must cover the yacht's value and include third-party liability. Ask the seller for a copy of the current insurance certificate.

If the yacht is financed, the lender's interest may be noted on the policy. This can complicate transfer of ownership. Ensure the seller clears any outstanding loans.

BlueWater Registration Services can help you arrange insurance if needed.

Additional Documents for Corporate Owners

If the yacht is owned by a company, you need corporate documents. This includes the certificate of incorporation, register of directors, and proof that the seller has authority to sell.

Some flags, like the UK Part 1, require a company to be registered in the UK. BlueWater can set up a UK company for non-resident owners to meet this condition for UK registration.

Check that the corporate name on the bill of sale matches the current owner exactly. Even a small difference can cause rejection.

What to Do if Documents Are Missing

Missing documents are common when buying a used yacht. You can still proceed, but expect delays. The seller may need to request duplicates from the builder or previous flag state.

BlueWater offers a free document pre-check. We review all papers before you submit them to the registry. This saves time and avoids rejections.

If a properly submitted application is formally rejected by the maritime authority, BlueWater provides a full refund. This gives you peace of mind.

Frequently asked questions

What documents do I need to buy a used yacht?

You need proof of ownership (bill of sale), deletion certificate from the old flag, proof of VAT status, survey reports, builder's certificate, tonnage certificate, insurance certificate, and current registration documents. If the yacht is owned by a company, also include corporate papers.

Why is VAT status important when buying a used yacht?

VAT liability depends on customs status, not the flag. If VAT was not paid, you may owe a large sum when using the yacht in EU waters. Always get written proof of VAT payment from the seller.

Can I register a used yacht without a deletion certificate?

Most registries require a deletion certificate to prove the vessel is free of prior liens. Without it, registration is usually impossible. The seller must obtain one from the previous flag state.

What if the used yacht's survey is outdated?

Some flags require a recent survey for yachts over a certain age. If the survey is over five years old, you may need a new one. A pre-purchase survey is recommended regardless.

How can BlueWater help with used yacht documentation?

BlueWater offers a free document pre-check to ensure all papers are in order. We handle the entire registration process, including obtaining missing certificates. If the application is rejected, we offer a full refund.

Official sources

Trusted Experience in International Yacht Registration

For more than 18 years, BlueWater Registration Services has helped private and commercial yacht owners navigate international registration and documentation requirements. Our experienced specialists provide personal support, practical guidance and clear communication throughout the registration process.

We assist clients worldwide and are available seven days a week. Whether you are registering a yacht, changing flag or purchasing a vessel abroad, our team can help you identify the most suitable registration options for your circumstances.

Speak directly with a yacht registration specialist.

Facts checked and up to date as of 20 July 2026.