Most couples come to a relocation decision with a city already half-formed in their heads. Someone read a piece about Lisbon, someone else has a friend in Mexico City, and within a week the spreadsheet is full of flight times and neighbourhood names. The conversation that should have happened first, the one about money, gets folded in later as a constraint rather than a foundation. By then it is already a negotiation, and negotiations about a place you have started to love rarely go well.
The better order is the reverse. Before either of you looks at a single skyline, each person should write down, privately, a sustainable monthly number. Not the number you could survive on for a frantic year, and not the number you fantasise about. The figure you could spend, month after month, without quietly resenting it. Write it alone, without consulting each other, and only then compare.
The gap is the real conversation
What matters is rarely the number itself. It is the distance between your two numbers. One of you might write 2,800 a month and the other 4,500, and that 1,700 gap is not an accounting error to be reconciled in an afternoon. It is a difference in how you each picture the next decade: how much cushion feels safe, how much you expect to earn, what counts as comfort rather than indulgence.
Couples who skip the private step tend to anchor on whoever speaks first, or whoever sounds most confident. The quieter number gets rounded up, the louder one gets treated as fact, and six months into a new city one person is carrying a stress the other never agreed to share.
The goal is not to agree on a number on the first try. It is to understand, without flinching, why your two numbers are different.
When you can name the gap, you can decide what to do with it. Maybe one of you values a second bedroom and the other values eating out four nights a week, and those preferences cost roughly the same. Maybe one number assumes a job that does not exist yet. Surfacing this early means the city you eventually choose is built on an honest budget rather than an optimistic one.
Cost is not the same as comfort
A sustainable number only means something once you understand what it buys, and that varies far more between places than the headline rent figures suggest. Two cities with identical rents can leave you with wildly different amounts of breathing room once the rest of life is accounted for.
A few things to separate deliberately:
- Tax treatment, which can change your take-home by a fifth or more depending on residency status, special regimes, and how your income is structured.
- Healthcare cost, which is close to invisible in some countries and a significant monthly line in others, and which matters more as you age or if either of you has an ongoing condition.
- Local purchasing power, meaning what a normal day actually costs once you are buying groceries, transport, and a coffee like a resident rather than a tourist.
- The cost of staying connected, including flights home, visa renewals, and the occasional trip back for a wedding or a funeral, which couples reliably forget to budget.
The reason to keep these separate is that they pull in different directions. A city can look expensive on rent and still leave you richer at the end of the month because healthcare is free at the point of use and the tax regime is generous to new arrivals. Another can advertise low rents and quietly claw the difference back through a punishing rate on foreign income.
When we built the intake at OurNextCity, this is why money sits early in the twelve factors rather than at the end. We ask each of you for a comfortable monthly figure before you have seen any results, precisely so the number is yours and not a reaction to a place you already want. The shortlist that comes back then translates your figure into local terms, accounting for tax and cost of living, so a city does not look affordable on paper and turn out to be a slow drain in practice.
Talk about money first, and the city conversation gets easier, not harder. You stop arguing about whether you can afford somewhere and start discussing what you actually want from the years you spend there. The place follows the budget, the way it always should have.
