Blog · Shared expenses for couples, flatmates and friends

An open drawer with children's clothes folded by colour and a pair of small trainers on top.

family clothes children Sep 18, 2026

Kids' clothing: the real cost and how to split it

Little ones' sizes last three or six months, garments wear out before they're worn out and the wardrobe is a bottomless pit. Looking at the real annual cost helps you budget better and split it sensibly between both parents.

ControlarGastos · Family & home

Dog lying on a living-room sofa in a shared flat with warm natural light.

flat pets splitting Sep 16, 2026

One person's pet in a shared flat: who pays the extra?

A dog or a cat brings costs that don't show up in the flat's rent: an extra deposit, occasional damage, hair on the shared sofa. Splitting it well keeps the pet from becoming the living room's silent conflict.

ControlarGastos · Flat-sharing

A kitchen table at Christmas with wrapped parcels, an envelope of lottery tickets and an open planner

couple christmas gifts Sep 14, 2026

Christmas as a couple: gifts, trips, dinners, who pays

Four weeks, eight fronts of spending and two social calendars that rarely line up. Christmas as a couple is the shared pot's annual stress test, and almost nobody arrives trained.

ControlarGastos · Couples & money

A bar table at the end of the night with several beer glasses, an empty plate and a phone showing a calculator

friends bars splitting Sep 11, 2026

Beers at the bar: the phone-calculator ending

Three rounds, eight beers, three plates of patatas bravas, two alcohol-free drinks. The arithmetic at the end can take fifteen minutes or thirty seconds. The difference is in how you model the problem before you order.

ControlarGastos · Groups & trips

Living room of a shared flat with the television on and a remote control on the sofa

flat subscriptions streaming Sep 09, 2026

Sharing Netflix/Spotify in a flat: the legal grey area

The platforms are tightening their same-household clauses and shared flats live in an increasingly uncomfortable grey area. How to organise the flat's streaming without drama or unexpected cut-offs.

ControlarGastos · Flat-sharing

A table with two coffee cups, an open notebook and a planner, symbolising a couple's financial conversation

couple children blended family Sep 07, 2026

Stepfamily children's expenses: one partner's or both?

When one of you comes into the relationship with children from before, the money flowing in and out for them tests unwritten agreements. There's no good formula here, but there are conversations that get avoided for far too long.

ControlarGastos · Couples & money

Kitchen table with a calendar, a calculator and children's birthday gift bags

family birthday children Sep 04, 2026

Children's birthdays: the real annual cost

Adding your own child's birthday to the fifteen or twenty other kids' birthdays you attend each year gives you a figure almost nobody looks at. Doing so changes the family conversation and the calendar.

ControlarGastos · Family & home

Interior of a shared-flat fridge with organised shelves and products with no visible brands

flat fridge living together Sep 02, 2026

The flatmates' fridge: yoghurts with surnames

The labelling system on the yoghurts, the assigned shelves, the cold war over shared products. The fridge isn't an appliance, it's the emotional thermometer of a shared flat.

ControlarGastos · Flat-sharing

Couple reviewing several bank passbooks and a notebook full of figures in the living room

couple accounts money Aug 31, 2026

When yours, mine and ours collide: the three-account couple

The three-account model, one shared and two individual, is the most popular setup among modern couples. It works if you clearly define what goes into the shared one. If you don't, it turns into seven tangled accounts.

ControlarGastos · Couples & money

Restaurant bill next to several banknotes and a couple of cards on a tablecloth

friends conflicts money Aug 28, 2026

The friend who always pays less: bring it up or stay quiet?

In every group there's one who orders the cheapest thing, leaves early or pays the bare minimum. How to spot the pattern, when it's worth bringing up and when it's better to accept it as system noise.

ControlarGastos · Groups & trips

Shared expenses without arguments.

Topics

Kids' clothing: the real cost and how to split it

One person's pet in a shared flat: who pays the extra?

Christmas as a couple: gifts, trips, dinners, who pays

Beers at the bar: the phone-calculator ending

Sharing Netflix/Spotify in a flat: the legal grey area

Stepfamily children's expenses: one partner's or both?

Children's birthdays: the real annual cost

The flatmates' fridge: yoghurts with surnames

When yours, mine and ours collide: the three-account couple

The friend who always pays less: bring it up or stay quiet?