The short answer
- Capital falls fast at first and slowly later: €1,204,350 at two partners, €602,175 at four, €401,450 at six.
- Weeks fall in the same proportion but land on whole numbers, so cost per week is flat at two, four and five partners and worsens at three and six.
- Four partners is the point where entry is materially lower and the calendar still gives a usable block of peak and shoulder weeks.
The diminishing-returns table
All figures are for the median motor yacht 62-85 ft at €2,408,700 with 40 owner weeks a year.
| Partners | Entry each | Weeks a year | 5-yr net each | Cost per week used |
|---|---|---|---|---|
| 2 | €1,204,350 | 20 | €1,037,323 | €10,373 |
| 3 | €802,900 | 13 | €691,549 | €10,639 |
| 4 | €602,175 | 10 | €518,662 | €10,373 |
| 5 | €481,740 | 8 | €414,929 | €10,373 |
| 6 | €401,450 | 6 | €345,774 | €11,526 |
Original GetBoat data: 415 euro-converted asking prices of 50–110 ft yachts listed for sale by GetBoat and its partners on 2026-09-20, plus the GetBoat market index (8,474 priced sale listings, 85,489 charter listings). Asking prices, not completed sales. Individual listings are never identified. Model: annual running budget 10% of the yacht price growing 3% a year, resale after 5 years at 72% of the price (per-brand depreciation in the GetBoat market index) less 7% selling costs, 40 owner weeks a year. Excludes VAT, financing, personal tax and programme fees. Illustration, not an offer. Weeks are rounded down to whole weeks, which is why cost per week rises at three and six partners.
Read the last column, not the second
The entry column always improves with more partners; the cost-per-week column does not. At three partners you pay €10,639 a week because 40 does not divide by three, and at six it is €11,526. Two, four and five divide cleanly.
The practical reading: if capital is the constraint, six partners is the cheapest way in. If value for money per week matters, four or five is better arithmetic.
What a bigger group costs beyond the calendar
Each additional owner adds a voice to decisions about refit, itinerary, crew and the eventual sale, and a further counterparty whose exit you may have to absorb. Those costs are real but not numeric; the calendar cost is numeric and shown above.
A useful test: write down the three decisions you would refuse to share. If a larger group makes any of them unworkable, the saving on entry is not the deciding factor.
Decision checklist
- 1Weeks per partner calculated for the group size you plan
- 2Cost per week compared across two, four and six partners
- 3Peak-week allocation rules read before agreeing a group size
- 4Decision thresholds for refit and sale agreed in writing
- 5Exit mechanics understood for a departing partner
- 6Capital constraint distinguished from value-for-money constraint
What buyers ask next
Why does cost per week get worse with six partners?
Because 40 owner weeks do not divide evenly by six. Each owner receives 6 whole weeks rather than 6.7, so the same share of the cost buys slightly less time.
Is a two-partner group simply half of sole ownership?
Financially, yes on this model: €1,204,350 at entry and €1,037,323 over five years, with 20 weeks a year. Practically it is the group size with the least calendar friction and the highest capital requirement.
This guide is general information, not legal, tax, financial, insurance or survey advice. Requirements vary by yacht, provider and jurisdiction; use qualified independent professionals for the transaction. Read our editorial policy.
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