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Managing co-ownership

Invite members, set shares, manage bookings and expense splits.

KLABBY is built for co-ownership. Up to 5 members as equals, no privileged admin. The only difference is the master, the member who pays the subscription: only they can invite and remove members, change the shares, and edit or delete the boat. On everything else, rights are identical. Here’s how to set it up well.

Inviting members

From the boat screen → Members → Invite. You need:

  • Member email
  • Percentage share (sum of all shares must equal 100%)

The member gets an email invitation. Once accepted, they see everything you do and can edit maintenance and documents, log expenses and book the boat. Only the master manages invitations.

Percentage shares

Shares determine how fixed expenses are split: mooring, insurance, ownership tax, planned major maintenance.

Example: boat owned 25-25-25-25 by four members. A 1,200€ mooring bill is split 300€ each.

Variable expenses

Variable expenses (fuel, oil, consumables during a trip) are split by actual usage days, not by share.

KLABBY pulls usage days from the Logbook. If Mark uses the boat 12 days and Anna 6, fuel consumed in that period goes 67% to Mark / 33% to Anna.

Bookings

KLABBY uses first-come, first-served with a 48-hour buffer between trips (for cleaning, refuelling, possible emergency maintenance).

  1. Open the boat calendar
  2. Choose your dates
  3. Confirm
  4. The system warns you if there’s a buffer conflict

If a member wants to edit an existing booking, they can — until it starts. No “let’s swap” over WhatsApp — everything stays in the app.

Audit trail

Every expense, every booking and every member invitation or removal is logged immutably: who did it and when. When a member asks “but who logged that 800€ expense?”, the answer is already there.

When a member leaves

Only the master can remove a member, at any time. Their future bookings are cancelled, their share goes back to the master automatically, and the history of their expenses stays attributed to them. The master cannot be removed.

When a new member joins, their share is assigned by the master at invitation and taken from the master’s own share, so the total always stays at 100%.

Best practice

  • Important discussions outside the app, decisions inside the app
  • Always attach invoices — nothing destabilises co-ownership like undocumented expenses
  • If you’re 4+ members, agree on a “good neighbour rule” early (e.g. “August 15 rotates yearly”). KLABBY respects rules, but doesn’t invent them