Sending money internationally may seem simple, but it involves at least three different costs — and most people only notice two of them. The difference between doing a transfer well or poorly can mean hundreds of dollars with every transaction. This guide explains how each cost works and which option is best for each situation.

The three costs of an international transfer

Every international transfer has, in practice, three cost components. Understanding each one is essential to comparing providers correctly:

CostWhat it isWho charges itHow to identify it
1. Home country transfer taxAny government tax on international currency transactions (e.g. Brazil's IOF at 3.5%). Mandatory and unavoidable — check what applies in your country.Your home government — charged by all providers without exceptionShould appear itemised before you confirm the transfer. If it is not shown explicitly, it is embedded in the rate.
2. Exchange rate spread (margin)The difference between the real mid-market rate (what you see on Google) and the rate the provider applies to your conversion. This is the main way currency services make money.All providers — the difference is in the percentage: Wise uses the mid-market rate; traditional banks add 3–8%Compare the applied rate with the central bank rate at the same moment. The percentage difference is the spread.
3. Service fee (fixed or percentage)The cost for the transfer service itself — may be a fixed fee (e.g. A$5) or a percentage of the amount.Remittance providers and banks. Some waive the service fee and compensate with a higher spread.Appears as "fee", "transfer cost", or similar in the transaction summary.
Total real costHome country transfer tax + Exchange rate spread + Service fee

How to compare correctly

The fairest way to compare providers is not to look at the exchange rate in isolation — it is to simulate the same amount on each platform and compare how much arrives in the destination account (in Australian dollars). That is the metric that actually matters. Always use the simulator on each platform with the same amount on the same day.

Comparison of the main providers for international → Australia transfers

ProviderExchange rateFeeTransfer taxTimelineAssessment
WiseReal mid-market rate (no margin)~0.4–1.5% + small fixed amountItemised separatelyHours to 1–2 business days✅ Best overall value — fully transparent
RemitlySlightly below mid-market (variable spread)Varies by amount — can be $0 to $15IncludedMinutes to a few hoursGood for smaller amounts and speed — strong first-transfer promotion
Remessa OnlineMid-market with low spreadVariable — simulate on their siteItemised separatelyHours to 1 business dayReliable Brazilian-based platform — Portuguese interface, good support (note: Brazil-only service)
Western UnionAdded margin — percentage not disclosedVariable — free online, up to ~$15 in branchIncludedHours to days⚠️ Spread not disclosed — use only if you need cash pickup
Traditional banksSpread of 3–8% above mid-market$10–30+ per transactionIncluded1–5 business days❌ Most expensive and slowest — use only as a last resort

Payment from your home country: varies by provider and country. Receipt in Australia: Australian bank account with BSB and account number.

Simulation: sending the equivalent of A$5,000 to Australia

The example below illustrates the real difference between providers. Amounts are approximate and vary with the daily exchange rate — always simulate before transferring.

ProviderApplied rateHome country taxService feeApprox. spreadAUD received (estimate)
WiseReal mid-market rateVaries by country~A$5–150%~A$595–610 ✅
RemitlySlightly below mid-marketVaries by country~A$0–10~0.5–1.5%~A$580–605
Remessa OnlineMid-market rateBrazil: 3.5% IOFVariable~0.5–1%~A$585–608
Western UnionWith undisclosed marginVaries by country~A$0 (online)~2–4% (estimate)~A$555–580
Traditional bankHigh spread appliedVaries by countryA$10–30+~4–8%~A$510–560 ❌
Difference between best and worst~A$50–100 per transfer

⚠️ Illustrative figures based on a hypothetical exchange rate. Rates vary daily. Always simulate on the platforms before transferring.

Over 12 transfers of equivalent size per year, the difference between Wise and a traditional bank can represent A$600–1,200 lost — more than a month's rent in many Australian cities.

Taxes on international transfers — what you need to know

Depending on where you are sending money from, your home country may impose a tax on international remittances. These taxes are charged by all providers without exception — the only thing you can control is choosing a provider that is transparent about them and does not hide additional costs on top.

Country exampleTransfer taxNotes
Brazil (IOF)3.5% on money sent abroad (2025–2026)Also applies to international credit card purchases. Receiving money from abroad is taxed at 0.38%. May change at any time by decree.
Other countriesVaries — check with your local tax authoritySome countries have no transfer tax; others have flat fees or percentage-based levies.

⚠️ Transfer taxes can be changed by government decree at any time. Always verify the current rate in your home country before transferring.

Practical strategies to reduce transfer costs

1. Avoid small, frequent transfers

Each transfer incurs a service fee plus any home country taxes on the full amount. Transferring the equivalent of A$500 ten times costs more than transferring A$5,000 once — the tax applies to the same total, but the fixed fee is paid ten times.

2. Use Wise as a foreign currency account

The Wise multi-currency account lets you hold a balance in Australian dollars (AUD) and your home currency at the same time. You can transfer when the exchange rate is favourable, hold AUD in your Wise account, and use the Wise card to pay expenses in Australia without paying a spread on every transaction.

3. Always compare before transferring

Exchange rates fluctuate throughout the day. An hour can make a 0.5–1% difference in the final amount. Use the simulators on Wise, Remitly, and Remessa Online with the same amount and compare the AUD that will arrive before confirming any transaction.

4. Avoid using a home-country credit card for Australian expenses

Using a credit card from your home country to pay Australian bills typically adds both a transfer tax and your card issuer's spread (usually 2–5%). Open an Australian bank account and use an Australian card or your Wise account for local spending instead.

5. Never exchange currency at the airport

Airport currency exchange desks have the highest spreads on the market — often 8–12% above the mid-market rate, plus any applicable taxes. If you need cash, exchange in advance through an online provider or withdraw from an Australian ATM with a debit card (check your bank's fees).

What you need to receive money in Australia

To receive a transfer from Wise, Remitly, or any international provider in Australia, you will need an Australian bank account with a BSB and account number.

Required detailWhat it isWhere to find it
BSB (Bank-State-Branch)A 6-digit code that identifies the bank and branch in Australia.In your Australian banking app or internet banking, under "Account details"
Account NumberYour current or savings account number in AustraliaSame place as the BSB — "Account details" in your banking app
Account NameYour full name as registered with your Australian bankAs per your bank registration
Bank NameName of the bank (e.g. Commonwealth Bank, ANZ, NAB, Westpac)Your bank's name
SWIFT/BICInternational bank code — not all providers require this for transfers to AustraliaOn your Australian bank's website, under "International transfers"

Open your Australian bank account as soon as you arrive

To receive international transfers you need an Australian bank account. Commonwealth Bank (CommBank), ANZ, NAB, and Westpac are the "Big Four" and allow you to open an account before you even arrive in Australia. Neobanks like UP Bank and ING are popular among immigrants for their good apps and no monthly fees.

What to do with money still in your home country

For anyone moving to Australia, a practical question is what to do with money still at home — an emergency fund, savings, or supporting family members who depend on you.

Keeping your home-country bank account active is recommended. You can use it to maintain a home-country credit card (for online purchases in your local currency), receive income from your home country (rental income, dividends), and keep a buffer for family emergencies. Many digital banks have functional apps even when you are abroad and charge lower maintenance fees.

Check if your home country requires a formal departure notification

If you become a non-tax-resident in your home country (by living permanently abroad), you may need to formally notify your home country's tax authority. This can affect how you are taxed on income earned at home and abroad. For short stays or temporary visas, the rules may be different. Consult an accountant or tax lawyer with experience in expats — the implications depend entirely on your specific situation and home country.

When to transfer — the exchange rate matters

Exchange rates fluctuate constantly and can move 10–20% over the course of a year. For large transfers (proof of funds for a visa, course payment, rental bond), it is worth monitoring the rate for a few days before transferring.

SituationRecommended strategy
Small, regular transfers (monthly)Use Wise with automatic payment or Remitly. Not worth the effort of monitoring rates for small amounts.
Large one-off transfer (A$5,000+)Monitor the rate for 3–7 days. A 2% swing on A$5,000 equals ~A$100 difference. Wise and Remessa Online allow you to set rate alerts.
Proof of funds for a visa (urgent)Use Wise — transfers in hours, transparent rate. Avoid traditional banks to avoid the risk of delays.
Course payment or rental bondTransfer at least 3–5 business days in advance using Wise or Remessa Online. Do not leave it to the last day.

Where to track exchange rates

Your home country's central bank rate is the mid-market reference rate. You can also check Google by searching "your currency AUD" (e.g. "BRL AUD"). The rate you get on Wise or similar services will be very close to the mid-market rate — the spread is small and transparent. Traditional banks and physical exchange offices will be significantly worse.

Transfers through friends, acquaintances, or informal currency swaps — real risks

A practice common among immigrant communities is arranging with someone: you deposit money in your home country to a contact, and that contact hands you Australian dollars here — or vice versa. This is known as an informal peer-to-peer currency swap (sometimes called "dólar cabo" in the Brazilian community, or a hawala-style arrangement). It seems simple, cheap, and hassle-free. But the risks are serious.

Why people still do it — and why it is not worth it

The logic is straightforward: avoid the transfer tax and the exchange rate spread. On a large transfer, that can represent a real saving. But the risk is not theoretical.

RiskDetailLikelihood / Impact
Illegal currency exchangeOperating outside the authorised financial system — criminal in many countries. No minimum amount threshold in some jurisdictions.Real risk for anyone doing it repeatedly or in large volumes
Scam or defaultNo contract, no guarantee. The person on the other side disappears with the money or claims they never received it. You cannot take legal action without exposing the illegal operation.Common — and you have no legal recourse to recover the amount
Third-party contaminationIf your "intermediary" is involved in money laundering or other financial crime, you may be treated as a co-conspirator — even unknowingly.Low probability, but devastating consequences if it occurs
Tax authority scrutinyThe person receiving the money in your home country may be questioned about its origin — if they cannot show it is a transfer (not income), they may face tax assessments.Growing risk as financial data matching becomes automated

The saving does not justify the risk

A home-country transfer tax (e.g. 3.5%) on A$5,000 is perhaps A$175. An informal swap that goes wrong can cost the full amount, a criminal record, or years of fiscal headaches. Wise or similar services eliminate the spread and make the mandatory tax the only real loss. The cost of doing it legally is lower than it appears.

Using Bitcoin or other cryptocurrencies to move money between countries is an option many people consider. The answer on legality is more complex than a simple yes or no — and the regulatory environment has changed significantly in recent years.

What is generally permitted

Buying cryptocurrency in your home country, transferring it to a wallet in Australia, and selling it for Australian dollars is technically possible and not prohibited by law in many jurisdictions. In Australia, the ATO treats crypto assets as property subject to capital gains tax — not as legal tender. The use itself is not a crime. The problem arises when you omit the transactions from your tax filings, or when you use crypto to disguise an illegal currency exchange.

What requires declaration

ObligationGeneral ruleConsequence of omission
Declare crypto holdingsRequired in most countries if you hold more than a threshold amount at year-end. Check the rules in both Australia and your home country.Unexplained wealth — penalties and audits
Declare transactionsMany tax authorities require you to report gains from crypto sales, especially above certain monthly volumes.Penalties for omission of required information
Pay tax on gainsIf you sold crypto at a profit, capital gains tax typically applies. In Australia, assets held over 12 months may attract a 50% CGT discount.Tax owed + interest + penalties
International data sharingRegulatory frameworks like the OECD's CARF mean that exchanges in one country increasingly share customer data with tax authorities in another country. The era of crypto anonymity is effectively over.Tax authorities on both sides may have visibility of your transactions

Practical risks of using crypto as a transfer method

RiskDetail
Volatility between purchase and saleIf Bitcoin drops 10% between when you buy in your home country and when you sell in Australia, you have lost more than you would have with any transfer fee. For urgent transfers or large amounts, volatility is a real risk.
Spread + exchange feesBuying crypto on one exchange, transferring, and selling on another involves a buy spread + sell spread + withdrawal fees on each exchange. The total cost can exceed a straightforward Wise transfer.
Complex tax obligationsEvery purchase, sale, or crypto-to-crypto swap is a taxable event in most jurisdictions. If you do not track each transaction, you may create tax inconsistencies that cost more than any transfer saving.
Risk of being classified as an illegal currency exchangeIf regulators determine that you are systematically using crypto to conduct unauthorised foreign exchange, it may be treated as illegal currency dealing.

Person-to-person transfers — the tax risk most people miss

Even within legal platforms, there is a tax pitfall many people do not know about: when you receive money from another person — whether via bank transfer, crypto, or any other means — your home country's tax authority does not automatically know whether it is a transfer or income.

For the tax authority, a bank transfer received could be interpreted as a loan received, a gift, informally paid services, undeclared wages — or any other form of taxable income. If your wealth cannot be explained by what you declared, you may face an audit.

Whoever receives the money needs to be able to explain its origin

If you arranged an informal swap — a friend deposited money into your account at home while you handed them Australian dollars here — the person who received the money may be questioned by their country's tax authority. If it is treated as income (rather than a wealth transfer), tax may apply. There is no clean exit: either you operate through the legal system, or you face risk on both sides of the transfer.