How to Build an Honest Cost-of-Living Budget Abroad

Every country has an internet number for how much it costs to live there. It is usually a confident, round figure, posted by someone with a different apartment, a different diet, and a different idea of a good time. It may be right for them. It is rarely right for you.

The only honest budget is your own receipts. This guide is how to collect them, organize them, and turn them into a number you can trust. Every chapter of Past Customs will show real costs, gathered this way, dated when published.

Why published numbers mislead

Cost-of-living websites average reports from many people with very different lives. Their numbers can be useful for comparing cities to each other, but they cannot tell you what your own life will cost. Rent is the biggest variable, and it varies enormously by neighborhood, building, and lease type. Food depends on whether you cook or eat out, and on how much of your old diet you insist on keeping. Exchange rates move. Prices move.

Use published numbers as a rough starting point, then replace them with your own as fast as possible.

Step one: the categories

Keep it simple. Too many categories and you will stop tracking. These cover most lives:

• Housing: rent, condominium or building fees, deposits amortized over the lease.
• Utilities: electricity, water, gas, internet.
• Groceries: supermarket, market, bakery.
• Eating and drinking out.
• Transport: transit, rideshare, taxis, car costs if any.
• Phone: local plan and any US number costs.
• Health: insurance premiums, consultations, pharmacy.
• Household: cleaning supplies, small repairs, laundry.
• Subscriptions and services: streaming, VPN, software, gym.
• Fees: bank fees, transfer costs, ATM fees.
• Everything else: haircuts, gifts, things you did not plan for.

Step two: capture everything

For one full month, record every spend. Card statements cover most of it, but cash and app payments slip through. Pick a method you will actually keep up: a notes app, a spreadsheet, a photo of every receipt in one album. The best method is the one you do not skip.

Record each spend in the local currency and convert at the end using one consistent rate. That way exchange-rate swings do not muddy your picture of what things actually cost.

Step three: separate setup from running costs

The first month abroad is never typical. You buy a kettle, sheets, adapters, a fan, a dozen small things. You pay deposits and setup fees. Mark these as one-off setup costs and keep them separate. Otherwise your first month will scare you and your second month will mislead you.

Step four: watch for the hidden lines

• Bank and transfer fees. Small and constant, and they add up.
• Foreign transaction fees. If any of your cards charge them, switch.
• Your US costs. Storage units, US phone plans, subscriptions you forgot. They still count.
• Insurance. Often paid annually or quarterly, so it hides. Spread it into a per-month figure.
• Travel out. Trips home or elsewhere are part of the cost of living abroad, whether you count them or not.

Step five: review and adjust

At the end of each month, total each category. Compare it with what you expected. The surprises tell you where your assumptions were wrong. Common ones: eating out costs more than you thought, because it is easy and pleasant; groceries cost more than expected if you buy imported goods; transport costs less once you learn the system.

Repeat it, month after month, and the number stabilizes. That stable number is your real cost of living.

Making it honest when you share it

If you share your numbers with anyone, as this site will, include the context: neighborhood type, household size, whether you cook, what you consider normal. Date the figures. Say which currency and which exchange rate. Numbers without context are just another internet average.

What not to do

• Do not compare your first month abroad with your last month at home.
• Do not forget the costs you still pay in the US.
• Do not budget on a best-case exchange rate.
• Do not keep a budget only in your head.

A useful habit

Keep a separate small list of the things that cost more than they should because you did not know better yet. Paying for a taxi when transit was easy. Buying an imported version of something sold locally. That list shrinks as you learn the place, and watching it shrink is one of the better measures of settling in.

Planning a buffer

Whatever number you arrive at, add a buffer for the unexpected. Appliances break, prices rise, flights home are needed at short notice, and the exchange rate can move against you. How large the buffer should be is a personal decision, but having one at all is what separates a budget from a wish.

The short version

Ignore internet averages after the first week. Record every spend for a full month, in local currency, separating setup from running costs. Review monthly, add the hidden lines, and date your numbers. Prices change constantly, so treat any figure, including your own, as a snapshot with a date on it.