The default, stated plainly
Each guest pays their own way. The bride’s costs — her bed, her dinners, her activities — are divided by the number of guests and added to each person’s share.
On a $600-a-head weekend with eight guests, the bride’s $600 divided eight ways adds $75 each. That is the real number to quote when you invite people: $675, not $600. Quoting the lower one and collecting the higher one is where the resentment starts.
What the organizer is not expected to cover
Being the maid of honor does not mean funding the weekend. She takes on the work, not the bill.
What she should expect to front is deposits, which is a cash-flow problem rather than a cost. Collect a deposit from everybody at the same time as you pay one, and never carry a group’s booking on one person’s card for six weeks.
Say the number before you invite
The invitation should contain the all-in figure and what it covers. Something like: "Three nights, roughly $675 each including your share of the bride’s costs, covering the house, two dinners and the boat. Flights not included."
Anybody who cannot do it can say so at that point, quietly, before anything is booked and before saying no means letting people down.
When somebody cannot afford it
Two workable options, both decided in advance. They come for part of it — one night rather than three — or the group quietly covers the difference and never mentions it again.
What does not work is a running tab that gets settled at the end. Somebody always ends up short, in public, in a restaurant.
Getting the money in
One person collects. One payment request, one deadline, one reminder. Not a shared spreadsheet that everybody edits.
Collect in two stages: a deposit when the beds are booked, and the balance two weeks out when the numbers are final. Refund overages rather than carrying them — a group that gets $30 back at the end remembers the weekend as well run.
