Como funciona a regra dos 84 dias de aluguer em casco nu para iates privados

A private yacht can be bareboat-chartered for up to 84 days per calendar year without triggering full commercial VAT exposure in the EU, provided the arrangement is genuine and properly documented. The limit applies per vessel, per year, and only to bareboat days — not crewed charters. If you are considering chartering your private yacht, the 84-day threshold is the number that shapes your whole plan.

What the 84-Day Rule Actually Means

The rule is a relief mechanism, not a free pass. It allows a privately registered yacht to be chartered commercially for a limited period each year while remaining outside full commercial VAT treatment. Once you cross that threshold, the vessel’s status can shift, and the VAT consequences change significantly.

The relief only applies when the charter is a true bareboat arrangement. In practice, that means:

• The charterer takes full control of the vessel for the charter period.
• You, as the owner, do not provide a crew.
• The charter is documented as a bareboat agreement, not a crewed or managed charter.
• Private use and commercial use are kept clearly separate in your records.

If any of these conditions fail, the 84-day relief does not apply — regardless of how many days you actually charter.

Why This Matters for Private Owners

Many owners assume that chartering their yacht a few weeks a year is straightforward. In reality, the tax treatment of a charter depends on how the vessel is used, how the arrangement is structured, and how the days are counted.

Getting this wrong can mean:

• Unexpected VAT exposure on charter income.
• Reclassification of the vessel’s use status.
• Difficulties with flag state or tax authorities later on.
• Costly remediation if the threshold is exceeded without proper records.

The 84-day rule is therefore not just a tax detail — it is a planning constraint that affects how you market, insure and operate the vessel.

What Counts as a Bareboat Charter Day

A bareboat charter day is a day on which the vessel is under a genuine bareboat agreement with a charterer who controls the vessel. Crewed charter days do not count toward the 84-day bareboat allowance, and mixing the two creates documentation problems.

Common errors that undermine the relief include:

• Combining crewed and bareboat periods under one agreement.
• Exceeding the 84-day total without tracking it.
• Incomplete or inconsistent charter documentation.
• Failing to separate private use from commercial use in logbooks and invoices.

Each of these can cause the arrangement to be treated as something other than a qualifying bareboat charter.

Where the Rule Gets Complicated

National interpretation and enforcement of the 84-day rule vary significantly across EU member states. What is accepted in one jurisdiction may be questioned in another, even for a similar vessel and charter pattern.

Several practical questions are not settled by the rule itself. These include:

• Whether the 84-day limit resets on a change of flag or ownership.
• How force majeure interruptions — mechanical failure or weather delays — are treated.
• Whether charter days must be consecutive or can be spread across the year.
• Whether delivery and redelivery transit days count toward the 84-day total.
• Whether charity events, boat shows or sea trials qualify for any exemption.
• What grace periods or notification requirements apply near the limit.
• What happens if the threshold is accidentally exceeded, and how it can be remedied.

Because these points are not uniformly resolved, the safe approach is to confirm the position with the relevant flag state authority in writing before structuring any arrangement close to the threshold.

Your Options as an Owner

If you want to charter your private yacht within the EU, you generally have three practical routes:

• Stay within the 84-day bareboat limit. Keep the arrangement genuinely bareboat, document every charter day, and track your annual total carefully.
• Operate outside the relief. Accept full commercial VAT treatment and structure the vessel accordingly.
• Change the vessel’s registration or use status. This may open different options, but it also changes the compliance requirements and should be assessed before you commit.

Each route has different documentation, cost and risk implications. The right choice depends on how many days you intend to charter, where the vessel is used, and which flag state is involved.

How BlueWater Registration Services Can Help

BlueWater Registration Services supports owners with registration and documentation questions, including structuring charter arrangements so that private and commercial use are clearly separated. Where a jurisdiction-specific assessment is needed, BlueWater can help you identify what to confirm with the relevant authority and how to prepare the supporting documentation.

For owners considering San Marino registration, BlueWater arranges the following packages. These are starting prices and exclude VAT:

• Boats from 1 m up to (not including) 10 m, private use: from €1,540 excl. VAT — includes a registration certificate valid for life and a San Marino Resident Agent.
• Boats from 10 m up to (not including) 24 m, private use: from €2,640 excl. VAT — includes a registration certificate valid for life, MMSI Radio License, Safety Certificate and San Marino Resident Agent.
• Boats from 1 m up to (not including) 24 m, commercial use: from €3,450 excl. VAT — includes a commercial registration certificate, MMSI Radio License, Safety Certificate, San Marino Resident Agent and Minimum Safe Manning Document.
• Boats from 24 m, private use: from €6,440 excl. VAT — includes a registration certificate valid for life, MMSI Radio License, Safety Certificate, Tonnage Certificate and San Marino Resident Agent.

These packages cover the lengths and uses listed above only. A boat length or use that does not fall within one of these lines is not something BlueWater arranges for San Marino registration, and none of these prices should be applied to such a vessel.

The validity and any renewal conditions of a registration certificate must be checked on the certificate issued for that specific vessel and category. Add-ons that are not listed in a package require a separate quotation.

A Practical Example

Consider a hypothetical owner with a 15 m privately registered yacht who wants to bareboat-charter it in the Mediterranean for part of the season. If the owner charters for 60 days under genuine bareboat agreements, keeps crewed charters entirely separate, and maintains clear records, the arrangement stays within the 84-day relief. If the owner then adds 30 crewed charter days, those days do not count toward the bareboat total — but mixing the two without clear documentation can still create problems. The owner should confirm with the relevant flag state authority how the two categories are treated before the season begins.

What to Do Next

Before you commit to any charter arrangement, take these steps:

• Decide how many days you intend to charter and whether they will be bareboat, crewed or both.
• Confirm in writing with the relevant flag state authority how the 84-day rule applies to your vessel and jurisdiction.
• Put a proper bareboat agreement in place for every charter period.
• Track charter days as they happen, not at the end of the year.
• Keep private use and commercial use clearly separated in your records.
• Seek advice before you approach the 84-day threshold, not after.

Conclusion

The 84-day bareboat charter rule gives private yacht owners a genuine route to charter within the EU without full commercial VAT exposure — but only when the arrangement is truly bareboat, properly documented and kept within the annual limit. Because enforcement and interpretation vary between member states, and because several practical questions around counting days remain unsettled, the safest approach is to confirm your position in writing before you structure the arrangement.

BlueWater Registration Services can assist with further guidance on registration, documentation and structuring your charter arrangements so that private and commercial use stay clearly separated.