Three nights, eight friends, and at least two who 'can only do Saturday.'

(Cabin weekends are supposed to be relaxing. The bill-splitting part usually isn't.)

You book a cabin for Friday through Monday. Eight friends commit. Then the texts start: "I can only come Saturday afternoon." "I have to leave Sunday morning." "My girlfriend might join for one night  Eis that cool?"

By the time the weekend arrives, you have eight people who committed, six who showed up Friday, two who arrived Saturday, one surprise guest, and one person who left before the big dinner on Sunday. The cabin cost $1,800. Who pays what?

The Per-Night Proration

The fairest baseline: prorate by nights stayed. If the cabin is $1,800 for 3 nights, the nightly cost is $600. Divide each night's cost among the people who are actually sleeping there that night.

• Friday night: 6 people ↁE$100 each
• Saturday night: 8 people ↁE$75 each
• Sunday night: 5 people ↁE$120 each

Someone who stayed all three nights pays $295. Someone who only came Saturday pays $75. This reflects actual usage without penalizing the people who committed to the full weekend.

Groceries and Shared Supplies

Food is trickier to prorate than the cabin. The simplest approach: split grocery costs among everyone who ate, proportional to the number of meals they were present for. If there were 6 meals over the weekend and someone was there for 4 of them, they pay 4/6ths of the grocery bill.

For alcohol, split it among the drinkers only. The person who showed up Saturday and drank water shouldn't subsidize Friday night's bourbon collection.

The "Commitment Fee" Debate

Some groups argue that the people who committed to the full weekend enabled the booking  Eand partial attendees are essentially getting a discount on a cabin they couldn't have booked alone. This is valid, but enforcing a "commitment premium" creates resentment. The per-night proration already accounts for the imbalance naturally. The full-weekend people pay more in total because they stayed more nights.

Last-Minute Additions

The surprise guest who "might join for one night" should absolutely pay their share. One additional person for one night doesn't change the cabin cost, but they're using space, utilities, and likely eating shared food. A proportional share of that night's costs, plus a contribution to groceries, is fair and expected.

Track It or Forget It

Cabin weekends involve dozens of small purchases: firewood, ice, extra paper towels, the emergency pizza run. Designate one person to log every shared expense as it happens. A shared link where everyone can see the running total prevents the post-weekend archaeological dig through Venmo history and gas station receipts. Calculate net balances once on Monday morning, settle up before everyone drives home, and the next group chat message can be about booking the cabin again next year.