Your pay lands abroad on the first of the month. The condo fee on your mother’s apartment in Belo Horizonte is due on the tenth, the Brazilian checking account you never closed still charges a monthly package fee, and you have not checked what last month’s transfer cost you.
Six decisions live in the gap between those two dates. Most people make all six by default, and the bill never lands on one statement, so it never gets questioned.
I am an investment advisor in Belo Horizonte, and this is the situation that comes up most when I sit down with someone who earns outside Brazil. This guide maps the six and hands each to the post that works it through. Every figure here is a labelled example, not a live quote — look up the real rate, the current IOF and the current Selic rate on the day you act.
Start with the mismatch, not with the currency
Currency risk is not a property of a currency. It is a mismatch.
Earn dollars and spend dollars and you carry none of it. Earn dollars and owe reais and you carry a lot — and the amount is the size of the obligation in Brazilian real that a dollar income has to cover.
That reframing beats any forecast. The fix is not predicting the exchange rate but matching it: holding reais against real obligations in reais, which is what a natural hedge means with the jargon stripped out. I go deeper into how currency risk actually works when your income and your obligations are in different currencies.
Seen that way, six concrete decisions fall out:
- When your hard-currency income becomes reais.
- What each transfer really costs, end to end.
- Where the reais sit between arriving and being spent.
- How much your family in Brazil actually needs each month.
- What happens to the Brazilian bank and brokerage account.
- Which currency your emergency fund has to be paid in.
1. When the dollars become reais
Nobody at my desk knows where the rate goes next, and anyone who tells you otherwise is selling something. So the useful question is not “is this a good moment” but “what is my rule”.
Three rules survive contact with reality: convert on a fixed date each month, convert a fixed share of income, or convert against expenses you already know are coming.
A rule wins on arithmetic, not discipline. If your Brazilian obligations come to R$3,200 a month, converting that much every month prices your purchasing power twelve times a year and averages your rate.
Waiting for a better number turns twelve conversions into one bet, on a date you picked by mood. The post on when to convert a US dollar salary into reais, and the three rules that beat timing the rate runs the arithmetic on both.
2. What the transfer actually costs
Every remittance into Brazil carries three costs and shows you two. The hidden one is the exchange rate spread — the gap between the reference rate you find online and the rate you were quoted.
Here is one US$1,000 transfer, line by line. Every rate and fee below is invented to show the shape of the calculation, so check each against reality.
| Line | Example figure | Share of the R$5,000 |
|---|---|---|
| Amount sent | US$1,000 | — |
| Reference rate (example) | R$5.00 per US$1, so R$5,000 | — |
| Rate you were quoted (example) | R$4.85 per US$1, so R$4,850 | — |
| Exchange rate spread | R$150 | 3.0% |
| IOF on the FX operation (example 1%) | R$48.50 | 1.0% |
| Fixed receiving fee (example) | R$20 | 0.4% |
| Reais credited in Brazil | R$4,781.50 | — |
| Effective total cost | R$218.50 | 4.4% |
The spread was R$150 of the R$218.50, and it is the number nobody quotes. IOF is a real federal tax on an FX operation, set by decree and revised from time to time, so treat the 1% above as a placeholder and look up the rate in force on your transfer date.
Express any transfer as one effective percentage and two options finally become comparable — the method behind the real cost of sending money to Brazil, from the spread to IOF to the receiving fee. It is also why using Pix when you live outside Brazil saves less than the interface suggests: Pix moves reais between Brazilian accounts, so the international leg is still a priced FX operation.
3. Where the reais sit while they wait
This is the one I see most: money that cost 4% to move, sitting in a checking account earning nothing for weeks. Idle reais are not neutral — they are a second fee.
Take the R$4,781 from the table. At an illustrative gross 0.8% a month — a stand-in figure, not a forecast — three months of sitting still gives up about R$115, before the regressive income-tax table on fixed income. That is half of what the transfer cost.
Brazil’s headline rate looks extraordinary from outside. The honest version has three deductions — inflation, then tax, then the currency — worked through in what Brazil’s interest rate is really worth to someone who earns abroad. On instruments, a CDB — a certificate of deposit issued by a Brazilian bank — is the usual first stop, and a CDB compared honestly against a US high-yield savings account shows why two headline rates in two currencies are not comparable.
Government bonds are the other family. Tesouro Direto — the government’s retail bond platform — sells fixed-rate, Selic-linked and inflation-linked options, and the inflation-linked bond is the only one that defends purchasing power directly.
All of it runs through a Brazilian brokerage account, which is why buying Tesouro Direto when you do not live in Brazil turns on account status more than on bonds. None of this is a recommendation to buy anything: these are mechanisms, and what fits you depends on facts a post cannot know.
4. The number your family actually needs
Almost everyone sizes the monthly transfer in the currency they earn — “I send US$700” — and that is the error. Size it against their fixed costs in reais, because those are the bills the money has to pay.
Say those costs are R$3,200 a month. At an example rate of R$5.00 per US$1 that is US$640; if the real strengthens to R$4.50, the same R$3,200 costs you US$711 — US$71 more a month, about US$850 a year, for the same groceries.
A 10% move does not change their bills. It changes yours.
The defense is a buffer held on the Brazilian side, big enough that one bad month never forces a conversion at a rate you hate. Building a monthly plan for supporting family in Brazil works through how big and when to review it.
5. The Brazilian account you left open
An account that worked quietly for years behaves differently once a Brazilian salary stops landing in it. Package fees waived on a salary condition start being charged, and the balance drains unwatched.
The bigger failure is the phone number. Brazilian banking authentication is built around a device and a number you still control; give up the Brazilian line and you can lock yourself out of both the bank and the brokerage account attached to it. Deciding whether to keep, downgrade or close a Brazilian bank account after you move has the checklist to run before you go — bank mechanics only.
6. Which currency the emergency gets paid in
One question settles the argument about where an emergency fund lives: in which currency would the emergency actually be paid? A hospital bill for your father is paid in reais. A month of your own rent abroad is not.
So split the fund by obligation, not preference. Six months of that R$3,200 is R$19,200 — roughly US$3,840 at the example rate — and that share belongs in reais, liquid, in Brazil.
Your own costs abroad stay in the currency you pay them in. Holding it all in whichever currency pays more interest is a bet, not a plan.
If it does not exist yet, build it first with how to build an emergency fund, then split it using where an emergency fund should live when you hold two currencies.
What this guide does not cover
Two questions arrive attached to every one of the six above, and neither one is mine to answer.
- Anything about filing or owing. Whether you are a resident for tax purposes, what has to be declared, what any of it costs — that belongs to a contador, a Brazilian accountant. I describe mechanisms here, never what to file.
- Anything about visas, status or the right to live somewhere. That is a lawyer’s work, not an advisor’s.
One paid hour with a contador before a move is the cheapest line in this guide, and the one people skip. Book it before you change anything structural, not after.
Do this before your next transfer
Take your last transfer confirmation and rebuild the table above with your own numbers: reference rate that day, rate you got, taxes, fees, one effective percentage at the bottom. You cannot improve a cost you have never measured.
Then write down your family’s actual fixed monthly costs in reais — the bills, not an estimate — and put a fixed conversion date in next month’s calendar. Those two numbers are what everything else here is built on. Finding them takes twenty minutes.