Yours/mine/ours, proportional-to-income, and full pooling - the three models couples actually use, with the trade-offs spelled out.
Most relationships eventually run into the same conversation: "how should we handle money?". Reddit will tell you there's a "right" answer. There isn't. There are three models that work, one that quietly doesn't, and the choice depends entirely on what you both want to optimise for.
Three working models: full pooling, yours/mine/ours, and proportional-to-income. The model that doesn't work is "we'll figure it out as we go". Pick one explicitly, agree the rules, and revisit annually.
Money is the most-cited cause of relationship friction in nearly every survey, every year. It's rarely the actual amounts that cause friction - couples on £30k and £300k have the same disagreements. It's the lack of a shared model. One person assumes "we share everything", the other assumes "we each pay our own way", and three years in they discover they've been operating under different rulebooks.
Pick a model. Be explicit. Revisit it annually as life changes.
All income, from both partners, lands in a single joint account. All spending - groceries, rent, dinners, holidays, your mum's birthday present - comes out of that account. There is effectively no "your money" or "my money". There's just "our money".
Most couples who pool successfully also have a small "no questions asked" allowance each month - £100, £250, whatever - that's explicitly personal. It transfers automatically into a personal account at the start of the month. Everything else is shared.
This single change preserves the autonomy that pure pooling can erode.
Three accounts.
The amount you transfer to "ours" is either equal (£X each) or proportional to income (you both contribute the same percentage of salary). We'll cover proportional in model 3.
Set up the transfer to the joint account as an automated standing order on the day after payday. Don't leave it as something either partner does manually. Removing the choice removes the friction.
Review the joint account budget every six months. Things creep up; the £600/month you agreed two years ago is probably £750 now.
Variant of model 2. The "ours" contribution isn't equal - it's proportional to income. If A earns £40k and B earns £80k, A contributes one-third of joint expenses and B contributes two-thirds.
Worked example. Joint expenses are £2,800/month (rent, bills, groceries, joint holidays sinking fund).
After joint expenses, A has £1,476 personal cash and B has £2,924 personal cash. They're not equal in absolute terms, but they feel equally unconstrained relative to their incomes.
A 50/50 flat split would have given A £1,000 and B £3,400 - a much bigger relative gap.
The default state for most couples in the first 6-18 months is no explicit model. One person pays for the groceries, the other gets dinner that night, somebody puts the gas bill on their card and "we'll sort it later". Sometimes you do; sometimes you don't.
This is fine while you're both broadly even. It collapses the moment one of you has a tight month, or one of you starts noticing the imbalance. It's not a model; it's the absence of one.
The risk isn't the £40 grocery shop. The risk is the resentment that builds when one person quietly tracks every "I paid for that last time" and the other one doesn't know they're being scored.
Move to one of the three models within the first year of living together. Even imperfectly executed, an explicit model beats no model.
Three questions:
For yours/mine/ours and proportional-to-income, you need to track joint expenses and reconcile periodically. That's what we built.
Both partners log expenses to a shared "household" group. The app runs running totals and tells you what each owes the other (or the joint account) at the end of each month. Settle monthly with a single transfer.
For full poolers, the app is less useful for couples - you don't track who paid for what, because it's all "us". You might still use it for joint trips with friends or for splitting with extended family.
We'd revisit the model annually rather than treating it as set-and-forget. Income changes. Kids change everything. Buying a house changes everything again. The 26-year-old version of the agreement won't fit the 31-year-old life.
The annual conversation can be 20 minutes long. "Is this still working? Are there parts that have started to grate? Is anything we should change?" It's much cheaper than a 4-month resentment spiral that ends in a row.
If you're moving in together, create a household group. Add rent, utilities, the weekly shop, the joint Netflix. Whichever model you pick, the tracker takes the cognitive load off either person.
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