Farewells and Welcomes: Parties Inside the Flat

The unwritten tradition that generates the most misunderstandings

You live in a shared flat and, sooner or later, one of the three dates arrives. The first is the flat's birthday, that arbitrary day someone decided to celebrate in the third month of living together and that's now part of the internal calendar as if it were a national holiday. The second is the farewell for one of the flatmates, the one moving to Berlin, to Lisbon or to a village up north, for whom you have to throw a dinner that lasts until three in the morning. The third is the welcome for the new one, that night when it's good for them to break the ice before they start arguing about cleaning the bathroom.

None of the three is written down anywhere, and precisely for that reason they're the ones that generate the most financial misunderstandings. People assume different things, pay for different things, and after a year each flatmate has a slightly different idea of how much they've contributed to the shared fun. The awkward conversation arrives, almost always, when someone does the mental math and realizes they've chipped into the pot at four birthdays and only had their own.

The amounts seem small. A welcome might come to thirty or forty euros among everyone; a farewell with homemade catering, eighty or a hundred. The serious thing isn't the numbers, it's the absence of a rule. And the absence of a rule, in shared living, always gets charged later.

Why the improvised common pot never quite works

The most widespread model is the pay-your-own common pot: on the day of the party, someone says "come on, fifteen euros each and we'll buy whatever's needed." The one with the car goes to the supermarket, does the whole shop for sixty-two euros, and comes back with bags and a crumpled receipt. The night comes, the dinner is set up, and on Monday the car-superhero realizes they've paid seven euros over their share, but since it's seven euros and the night was fun, they say nothing.

Multiply that by four parties a year over three years in the flat. That's eighty-four euros a single flatmate has been giving away to the rest, without meaning to, purely by being the one who volunteers to do the shopping. If on top of that the others have gradually forgotten to pay the full pot ("I'll send it to you later," "remind me"), the figure doubles.

The second problem with the improvised model is that it doesn't distinguish between the three types of party. A farewell isn't paid for the same way as the flat's birthday, and the new one's welcome shouldn't be paid one hundred percent by the newcomer themselves. Each situation has a different splitting logic, and putting all three in the same "come on, fifteen each" bucket cancels that logic and produces a sense of diffuse injustice that keeps settling over time.

Three types of party, three ways to pay for them

1. The flat's birthday or any collective celebration: strict common pot

This is the easiest. The whole flat celebrates something that concerns everyone equally: the anniversary, the end of exams, the day you signed the contract. Equal split among all the flat's inhabitants, no exception. If there are four of you and the dinner costs sixty euros, that's fifteen a head. If you invite partners or external friends, those guests pay their own share separately (the flat's pot covers only the inhabitants; the guests chip in).

Plausible numbers. Four flatmates, a shop of 56 euros plus 12 euros of drinks plus 18 euros of dessert and nibbles: 86 euros total, 21.50 each with the split by largest remainder to the cent so the rounding doesn't always fall on the same person. Whoever does the shopping fronts the money and gets compensated at month's end, not on the spot (the social pressure of "pay me now" is what makes it dissolve).

2. A flatmate's farewell: common pot without the guest of honour

The one leaving doesn't pay for their own farewell. It's the rule that gets broken most in practice and the one most worth protecting. The farewell is a gesture from the flat toward whoever's leaving; forcing them to pay for part of their own funeral meal is a social contradiction that wouldn't happen in other cultures. The split, therefore, is made among the remaining flatmates (those staying in the flat) and, if you like, the external guests.

Numbers: a four-person flat, one is leaving. The farewell costs 96 euros with drinks, food and a gift. The three who stay put in 32 euros each. The guest of honour can bring something they feel like contributing (a bottle of something special), but it's not demanded and it's not added to the bill. If five external guests come, they can be asked to chip into the common pot with five or ten symbolic euros, or it's taken on as a gesture of hospitality and split only among the three flatmates.

This rule is what distinguishes a farewell from any old birthday, and the one that's most noticeable when it's not applied: the flatmate who's leaving has spent weeks tense over the move, the new flat's expenses, the tickets; loading the bill for their own farewell on top of that is a gesture that's remembered badly.

3. The new one's welcome: common pot with a symbolic contribution from the newcomer

It's the most nuanced. The new flatmate, who's just paid a deposit, first month, last month, move, and sometimes a utility connection, shouldn't have to fund their own rite of passage one hundred percent. But it's not elegant either for them to arrive at a flat where a whole dinner is thrown without them contributing anything, because that establishes an unhealthy initial asymmetry.

The convention that works best is: the flat (the previous flatmates) pays the bulk of the dinner, and the new one makes a symbolic but significant, non-equivalent contribution. For example, at a welcome dinner of 60 euros for four people, the three previous flatmates put in 18 euros each (54 euros) and the new one contributes 6 euros or brings a bottle of a wine they like. It's a gesture, not a fee.

This ages well for several reasons. It gives the newcomer an active role from day one (they contribute something, they participate), but it doesn't hand them a bill the very day they arrive. And it makes clear that in this flat things are split with judgement, not with arithmetic rigidity. That first impression is worth more than the six euros of the calculation.

The invisible cost nobody adds up: the flat's wear and tear

Parties inside the flat have a cost almost nobody includes in the bill and which, nonetheless, exists. It's the material wear: the glass that breaks, the stain on the sofa, the fridge seal left open all night, the light left on until five. Added up over a year, it's between thirty and sixty euros of small damages that the deposit doesn't always cover and that, in any case, someone ends up replacing.

You don't need to split it after every party (that would be a scruple hard to sustain), but it is worth having a flat contingency fund, fed monthly with five euros per flatmate, spent on exactly that: replacements, small repairs, special products for cleaning up after a party. Knowing that fund exists is what stops the flat's birthday party from being charged three weeks later in the form of an argument over a stain on the rug.

How to automate it without turning it into bureaucracy

The rules above, written out, look complicated. Applied, they're four lines: flat birthday split equally, farewell without the one leaving, welcome with a symbolic contribution from the new one, and a common fund for contingencies. The problem isn't the rules; it's not having to remember them in the moment of each party.

This is what a tool like ControlarGastos does: you define the rule per expense category (the "farewell" category excludes the member who's leaving, the "welcome" category has a reduced contribution from the incomer), and as you enter each expense the split is calculated automatically, to the cent, with rounding by largest remainder so the extra cent doesn't always fall on the same person. The "hey, how do we do this?" conversation stops existing, because the system already knows the rule.

The goal isn't for the flat to run like a company; it's for the accounts to stop being a topic. The more automatic the close of each night is, the more room is left for the next dinner.

Conclusion: the parties are remembered, the accounts are forgotten

Shared flats that last years aren't the ones with written rules for everything, they're the ones that have reached tacit agreements clear enough that the accounts are never the centre of the conversation. Farewells and welcomes are, paradoxically, the moments when those tacit agreements get tested, because they introduce exceptions to the routine of the common pot.

Solving those exceptions well (the one leaving doesn't pay, the one arriving contributes symbolically, the rest sustain it) is what distinguishes a flat where shared living is warm from a flat where life is split equally but without affection. Money, deep down, is just the language in which that difference is expressed. Tending to that language with a bit of judgement is what makes someone, three years from now, remember the flat as a good chapter and not as a spreadsheet with feelings.