Money
Written By Daria Kulachek

By Daria Kulachek

In 2025, one euro cost as little as $1.0198 and as much as $1.1837. A €500,000 apartment therefore cost either $509,900 or $591,850, depending on which Tuesday you sent the money. Same apartment. Roughly $82,000 apart.

Nobody controls that. What you do control is the second number — the cut the institution takes on the way through — and at a US retail bank that cut typically runs 2% to 4.5% of the amount converted. On a $600,000 conversion, that's $12,000 to $27,000 that never appears on a fee schedule, never shows up as a line item, and is gone before the euros land.

The mechanics aren't difficult — they're just unfamiliar, and they run on a deadline set by a Spanish notary who does not care that your bank in Los Angeles closed at 5 p.m. Pacific. What follows: what the money actually costs, who can move it, when to convert, and which forms you owe to the IRS and to Spain. Figures checked September 7, 2026.

Where the money actually goes

Every currency transfer has two prices, and only one of them is advertised.

  • The visible fee. The flat charge for sending an international wire. As of 2026 fee comparisons: roughly $45–$50 outgoing at the big US retail banks — Chase $50, Bank of America $45, Wells Fargo $45 — with some banks discounting to $25–$40 if you send in dollars online and let the receiving side convert. Incoming wires cost too: Chase charges $15, Bank of America $16.

  • The invisible spread. The gap between the real interbank rate (the "mid-market" rate you see on Google or the ECB reference page) and the rate you're actually given. This runs about 2% to 4.5% at major US banks depending on the pair. It is not itemized. You will not see it unless you check the mid-market rate at the moment of conversion and do the arithmetic yourself.

On $500,000, a $50 wire fee is a rounding error. A 3% spread is $15,000. The fee is theater; the spread is the transaction.

There's a quieter third cost: correspondent banking. A dollar wire doesn't fly direct — it hops through intermediary banks, each of which can deduct a handling charge in transit. That's why the amount landing in Spain can be $20–$50 short of what you sent.

One thing works in your favor. The Consumer Financial Protection Bureau's remittance rule requires providers to disclose the exchange rate, the fees, and the exact amount that will be delivered abroad — before you pay and again at payment — and consumers generally get 30 minutes to cancel afterward. Ask for that disclosure in writing. If a provider won't quote a landed euro figure before you commit, that tells you what you need to know.

Who can move it: three kinds of provider

Providers fall into three categories that price the same job in completely different ways. These are categories, not rankings — the names change, the structures don't.

  • Your existing US high-street bank. Highest spread (2–4.5%), a flat wire fee, and a branch employee who has handled maybe four €400,000 transfers in their career. You're buying familiarity. On a large purchase, you're paying five figures for it.

  • An FX broker or payment specialist. Firms whose entire business is converting and delivering currency. They work on volume, so they quote a tighter margin than a retail bank and still make money — typically a fraction of a percent up to around 1%, negotiable downward as the amount rises. They also offer tools banks won't give retail customers: forward contracts, limit orders, a named dealer who picks up the phone. Trade-off: new counterparty, credentials to check.

  • A multi-currency or borderless account. Fintech accounts holding dollars and euros side by side, converting at or near mid-market for a stated percentage fee. Transparent, genuinely cheap, and useful later for the quarterly community fees. Two limits: many cap transfers well below a completion payment, and some Spanish sellers and notaries prefer completion funds arriving from a named bank account rather than a payment institution.

How to vet a non-bank provider, in about ten minutes. Money transmitters are licensed state by state. In California that's the Department of Financial Protection and Innovation, which licenses money transmitters and manages those licenses through the NMLS registry; the DFPI consumer line (1-866-275-2677) will confirm whether a company is licensed here. Federally, every money services business must register with FinCEN and renew every two years. Then ask outright whether client funds sit in segregated safeguarding accounts. A money transmitter is not a bank, and your money there is not FDIC-insured — which is a reason to move funds through one, not to park a down payment there for three months.

Getting this right is one of the cheapest wins in the whole purchase, and one of the most commonly skipped — it's on our list of mistakes Americans make buying in Spain for a reason. Not sure how your purchase timeline maps to your transfer timeline?Book a free consultation and we'll walk the calendar backward with you.

When should you convert — all at once, or in pieces?

You have three mechanisms. Each buys something different.

  • Spot. Convert now at today's rate, settle in one to two business days. Simplest, cheapest, and appropriate when your completion date is close or you simply don't want an open position.

  • Forward contract. Fix today's rate for a settlement date up to about twelve months out. You post a deposit — commonly 5% to 10% of the contract value — and pay the balance on the settlement date. The deposit is credited toward the final amount, not lost. The catch nobody mentions in the sales call: if the market moves hard against your contracted rate before settlement, you can face a margin call and have to post more collateral on short notice. Budget for that possibility.

  • Limit order. A standing instruction to convert automatically if the rate touches a level you name. Useful if you have weeks of slack and a number you'd be happy with.

The honest framing: a forward is not a bet, and it isn't free — you're paying in optionality for certainty. If the euro weakens after you lock, you'll have "lost" money on paper. Wrong scoreboard. The right question is whether a 6% adverse move between arras and completion would break your budget. On a $700,000 conversion, 6% is $42,000. If that would force you to renegotiate or walk, hedge it. If it wouldn't, spot is fine.

The sequence: which euros are due when

Currency planning is really calendar planning. A Spanish purchase releases money in stages, and each stage has its own deadline.

  1. Reservation deposit — typically a few thousand euros to take the property off the market. Small enough that spread barely matters; send it fast.

  2. The arras contract — the real commitment, commonly 10% of the price. Under Article 1454 of the Spanish Civil Code, penitential arras mean a buyer who walks forfeits it and a seller who walks returns double. On a €500,000 purchase that's €50,000, due within days of agreeing terms.

  3. Completion balance at the notary — the remaining ~90%, plus any mortgage drawdown. See Spanish mortgages for Americans if part of this comes from a Spanish lender; the bank's funds arrive on its schedule, not yours.

  4. Taxes and fees — budget 10% to 15% of the price on top: transfer tax (ITP, roughly 6–10% by region), notary, land registry, legal. In the Comunidad Valenciana the general ITP rate is 9% for taxable events from June 1, 2026, rising to 11% above €1,000,000. Send those euros with the completion money, not two months later at a rate you haven't seen.

Two timing details that catch Californians out.

Completion is usually paid bycheque bancario — a banker's draft drawn by a Spanish bank and handed to the seller across the notary's table. Your bank needs cleared funds in your Spanish account several days before it will issue one. Not the morning of. Work backward: draft issued 2–3 business days before signing, euros cleared before that, international transfer sent 3–5 business days before that. The nine-hour time difference eats a day by itself.

Once the money is inside the euro area, it moves fast. Under the EU Instant Payments Regulation, euro-area payment providers have had to be able to receive instant euro transfers — credited within 10 seconds — since January 9, 2025, and to send them since October 9, 2025. Since that October date they must also offer a free Verification of Payee check, confirming the account name matches the IBAN before you authorize. Use it. IBAN fraud on completions is real, and this is a free 10-second defense.

If you're doing any of this remotely, note that a properly drafted Spanish power of attorney granted in California can authorize your lawyer to open and operate the Spanish account — which removes a trip and a bottleneck.

The paperwork on both ends

None of these forms cost money. Missing them can.

On the US side:

  • FBAR (FinCEN Form 114). Required if the combined maximum value of all your foreign financial accounts exceeded $10,000 at any point in the calendar year — aggregate, not per account. A Spanish account holding €450,000 for six days in September triggers it. Filed separately from your tax return, due April 15, with an automatic extension to October 15.

  • Form 8938 (FATCA). Different form, different thresholds. Living in the US: more than $50,000 in specified foreign financial assets on the last day of the year, or $75,000 at any time — doubled to $100,000/$150,000 for married filing jointly. Living abroad: $200,000/$300,000 single, $400,000/$600,000 joint. Note that directly held foreign real estate is generally not a reportable asset — the Spanish bank account is.

  • Form 8300. Reports cash over $10,000 received in a trade or business. Relevant here mostly as reassurance: wire transfers are not "cash" for this purpose, and neither are personal checks.

  • Section 988 currency gain. If the rate moves between when you acquire euros and when you spend them, the resulting gain is potentially taxable. There's a de minimis exception for individuals: gains of $200 or less on a personal transaction go unreported — and it's all-or-nothing, so $201 of gain is fully reportable. Ask your CPA before converting months in advance.

On the Spanish side:

  • Means of payment at the notary. Since Ley 36/2006, the deed must identify the medios de pago — the specific method, amount, and date of every payment — and the Land Registry can refuse to register the purchase if it doesn't. Keep the wire confirmations, FX contract notes, and banker's draft receipt. Your lawyer will ask.

  • Modelo S1. Required for physically carrying cash or bearer instruments of €10,000 or more into or out of Spain, and for internal movements of €100,000 or more. Filed with the Agencia Tributaria before you travel. If you were considering flying with the deposit: don't.

  • Cash payment limits. Spanish law caps cash payments at €1,000 where one party acts as a business or professional. The limit rises to €10,000 where the payer is an individual who is not tax-resident in Spain and isn't acting as a business. Nothing about a property completion should be moving in cash.

  • Modelo 720 and the Bank of Spain ETE — only if you become a Spanish tax resident. Residents must declare foreign assets over €50,000 in any of three categories on Modelo 720, filed between January 1 and March 31 for the previous December 31 position. Separately, residents whose transactions or balances with non-residents exceed €1 million in a year must file the ETE with the Banco de España. Buying a holiday home doesn't make you resident. Moving to Alicante does — and if that's the plan, see where the numbers work on the Costa Blanca and budget for both filings.

One more practical note: most Spanish banks want a certificado de no residencia to open and maintain a non-resident account, refreshed roughly every two years. Let it lapse and the account can be frozen — an unpleasant surprise the week your completion funds are sitting in it.

The short version

Send a large sum through your regular US bank without checking the mid-market rate and you'll likely give away 2–4% — real money, quietly. Compare a landed euro figure across at least two providers, verify the non-bank one is licensed, decide whether you need a rate lock or just a calendar, and start earlier than feels necessary, because the banker's draft has its own clock.

Where this fits in the full sequence — NIE, lawyer, arras, completion — is laid out in our pillar guide, California to Spain, and in the step-by-step on how to buy property in Spain from California.

Working out your transfer plan?Book a free consultation — we'll map your payment dates against the FX timeline, tell you where the spread is hiding in the quotes you've been given, and point you at independent people who do this daily. We're in LA — book on California hours. Or start with the free Spain property guide; it's yours to keep either way.

Quick answers

What is the cheapest way to transfer money from the US to Spain to buy a house?

Cost is dominated by the exchange rate spread, not the wire fee. US retail banks typically add 2–4.5% to the mid-market rate, while FX brokers and multi-currency accounts usually quote well under 1%. On a $600,000 conversion that difference is worth roughly $10,000–$20,000. Compare providers on the landed euro amount, not the advertised fee.

Do I have to report transferring money to Spain to buy property?

The transfer itself isn't reported, but the Spanish account often is. If your foreign accounts together exceed $10,000 at any point in the year, you must file an FBAR (FinCEN Form 114). Form 8938 may also apply at higher thresholds. Spain separately requires the notarial deed to identify every payment method used.

How far in advance should I convert dollars to euros for a Spanish purchase?

Work backward from the notary date. Completion is usually paid by banker's draft, which needs cleared euros in a Spanish account several days beforehand, so send the international transfer at least a week ahead. If your completion is months out and a 6% currency move would break your budget, a forward contract can fix the rate for up to twelve months. Inside Job Concierge maps this timeline with buyers before they sign the arras.

Sources

Daria Kulachek
Next

Property Taxes in Spain vs. California: ITP vs. Your Property Tax Bill