ByCarlos Martín·Founder, TheCharterPanel
·The Sixth List is probably the most confusing term in current Spanish charter regulation. It's not a new technical requirement but an administrative classification change that determines how your boat is catalogued based on its use. In Balearics, since Decree 44/2025, it's mandatory for any vessel doing commercial charter.
To put it in perspective: between 2010-2020, many operators bought boats as private, rented them without commercial registry, avoided taxes, and insured inadequately. Sixth List was born to close that loophole. When you register your boat, you publicly declare it's a commercial vessel, with all the inspection, insurance, and tax implications. A fleet management system centralizes the registration certificate and required annual audits.
Sixth List isn't optional in Balearics: it's required since April 2025. In the rest of Spain, RD 1188/2025 strongly recommends it and it's likely mandatory in other regions by 2026-2027.
What exactly is the Sixth List
Spain's Ship Registry classifies vessels into lists by type and use. Lists 1-5 cover public services, commercial transport, fishing, and recreation. Sixth List, created in 2012, is the category for recreation vessels dedicated specifically to commercial exploitation: charter, tourist services, private passenger transport.
The key difference from private registry is that a Sixth List boat is formally registered as a commercial vessel. That brings higher insurance requirements, periodic technical inspections, and different taxation (21% VAT on services).
In practical terms, Sixth List covers 5-24 meter vessels, exclusively charter or commercial services use, with safety equipment meeting passenger standards, and commercial-specific insurance coverage.
Why it's mandatory now
The problem Sixth List solves is unfair competition. For years, operators informally rented private boats without proper taxes, inadequate insurance, and no safety inspections. That harmed compliant operators, created passenger risk, and meant tax loss.
By making it mandatory, the administration gets a transparent registry of who does charter, a database for inspections, insurance validation, and equipment verification. Serious operators get elimination of informal competition, proof of compliance, and access to corporate clients requiring compliance. Passengers get assurance the boat is inspected and the operator is traceable.
Registration process step by step
Complete timeline is 6-8 weeks. Don't delay this process to last minute.
Phase 1: preparation (weeks 1-2)
Contact an authorized maritime classification company (DNV GL, Lloyds, etc.) for technical inspection quote. In parallel, prepare boat documentation (registry certificate, seaworthiness, plans) and arrange commercial insurance policy, which takes 1-2 weeks.
Phase 2: technical inspection (weeks 2-4)
The classification company inspects physically (1-2 days on-site). Verifies stability, buoyancy, safety equipment (life jackets, life rafts, first aid, extinguishers), habitability for passengers, propulsion and navigation systems. Issues technical report in about one week.
Minor findings are common and fixable with EUR 500 adjustments. Major findings preventing registration are rare.
Phase 3: administrative submission (week 5)
Gather all documents into physical or digital folder and submit application to Maritime Authority in-person or online. Pay registration fees.
Phase 4: validation and registration (weeks 5-8)
Maritime Authority reviews the file in 2-3 weeks. If incomplete, they notify and you have 10 days to complete. If correct, they register the boat and issue the certificate.
After that, keep the certificate in your boat documentation and carry a copy for every departure.
What it costs
| Concept | Cost |
|---|---|
| Classification technical report | EUR 1,500-3,000 |
| Commercial annual insurance | EUR 800-2,000 |
| Registration fees with Authority | EUR 100-600 (by length) |
| Gestoria/legal advice | EUR 200-400 |
| Total registration | EUR 2,600-6,000 |
| Annual renewal (insurance + audit) | EUR 1,100-2,600 |
The technical report is a one-time expense. From year two, costs are just insurance renewal and annual safety audit (EUR 300-600, one day on-site).
Smart alternative: buy already-registered boat
If you buy a boat already in Sixth List, the transfer costs EUR 200-300 and takes 2-3 weeks. You save the initial technical report (EUR 1,500-3,000) and get operational much faster. The boat costs more initially, but the time and cost savings justify it.
Difference vs. private boat
| Aspect | Private sailing | Sixth List (commercial) |
|---|---|---|
| Registry | Standard registry | Sixth List in Registry |
| Insurance | Recreational (EUR 100K-300K) | Commercial (minimum EUR 1.2M) |
| Technical inspection | Not required | Annual mandatory |
| Taxation | VAT doesn't apply | 21% VAT + corporate tax |
| Departure documentation | Minimal | Complete (certificates, manifests) |
| Use | Indefinitely private | Commercial exclusively |
The most critical difference is insurance coverage. Recreational policy at EUR 100K doesn't cover a passenger accident. Commercial at EUR 1.2M does. If you operate charter with private insurance, any claim leaves you, the boat, and passengers exposed. To understand this fully, see our mandatory insurance 2026 guide.
What happens without it
Consequences escalate with repeat offense. First inspection without Sixth List: EUR 1,500-3,000 fine plus zarpe prohibition. Repeat non-compliance: EUR 3,000-9,000 plus 15-30 day boat seizure. Systematic operation without registration: EUR 9,000+, possible operator suspension.
Every time you leave the port, authorities can verify real-time if your boat is in Sixth List. It's not theoretical risk—verifications are active, especially in Balearics during spring and summer. From the boats panel you can check current registration status for each vessel in real-time.
Validity and annual maintenance
The registration certificate doesn't expire. The classification report doesn't either, but from year two you need an annual safety audit: one day on-site, EUR 300-600 cost, verifying equipment, general state, and documentation. If audit fails, you have 30 days to remedy. If not, registration can suspend.
Your insurance policy must renew every year before expiry. It's the highest recurring cost.
The key point
Sixth List is inevitable for any serious operator. In Balearics it's already mandatory. In rest of Spain, regulatory direction points to mandatory status in 2026-2027. Registering now invests in your business legitimacy and prevents fines exceeding the registration cost by far.
If you don't have it yet: act before applications pile up. Budget EUR 2,600-6,000 as long-term one-time investment and EUR 1,100-2,600 annually for maintenance. Amortizes in 2-3 charter seasons.
If you already have it: keep insurance current, schedule annual audit with time, and always carry certificate on departure.
To see how Sixth List fits with other requirements, see Decree 44/2025 Balearics, RD 1188/2025 National, and mandatory insurance.