Offshore banking has a reputation for glamour and mystery, but the day-to-day reality is much more mundane: it’s a stack of line items on a statement. The surprise for many clients isn’t that fees exist—it’s how many of them are baked into the plumbing in ways that are easy to miss. I’ve reviewed hundreds of offshore fee schedules and statements for individuals and companies over the years, and the same pattern keeps showing up: the headline pricing looks fine, but the “hidden” fees—usually buried in FX spreads, correspondent bank charges, and compliance extras—can double your costs if you don’t plan for them.
What offshore banking really means
At its simplest, “offshore banking” just means holding accounts in a jurisdiction outside your country of residence. People and companies open offshore accounts for currency diversification, access to global markets, asset protection, better service for cross-border needs, or to bank in a stable legal environment. None of those objectives require secrecy or anything shady; legitimate offshore banking is normal for expats, international founders, trading firms, family offices, and anyone with income or investments across borders.
The catch is that offshore banking sits on different rails than your domestic bank. Payments hop through correspondent banks. Currency conversions run through treasury desks. Compliance procedures (especially FATCA and CRS) add extra layers. Each hop comes with its own fee line—sometimes explicit, sometimes built into the exchange rate or disclosed in the small print.
How offshore fee structures are designed
Banks charge in two primary ways:
- Explicit fees: a published dollar or percentage amount for a service (e.g., $30 per wire, 0.25% custody fee, $15 monthly).
- Implicit fees: costs folded into the price of a product or rate, like the spread in a currency conversion or the discount applied to your deposit rate versus interbank benchmarks.
Offshore accounts often use “risk-based pricing.” Clients from higher-risk industries or jurisdictions, or those with complex structures (trusts, holding companies, foundations), pay more for onboarding, ongoing due diligence, and certain transactions. Relationship tiers matter too; a “premier” or “private banking” relationship might shave costs for large balances, while basic accounts pay rack rates—and rack rates offshore can be steep.
The tricky bit is that fee schedules don’t always show the full picture. Two examples I see constantly:
- An “international wire fee” of $20 sounds fine, but your payment passes through two correspondent banks that deduct $15–$25 each. You never see those fees in the bank’s tariff; they vanish from the amount received.
- A “competitive FX rate” promises “no commission,” but the bank gives you 1.8% worse than mid-market. On a $250,000 conversion, that’s $4,500 in spread—more than any explicit line item.
The fees you’ll actually face
Account opening and maintenance fees
- Opening/onboarding: $200–$2,000 for individuals, $500–$10,000+ for companies and trusts, depending on complexity. Enhanced due diligence (EDD) can add $1,000–$5,000 annually for higher-risk profiles.
- Maintenance: $10–$50 per month for retail offshore accounts; $50–$250 for corporate; $500–$2,000 per quarter for private banking packages.
- Minimum balance penalties: Fall below $25,000–$100,000 and expect $50–$200 per month in penalties. Some private banks set thresholds at $250,000–$1M.
Common mistake: Focusing on the “opening” fee and ignoring ongoing EDD reviews and minimum balance penalties. Always ask how often the bank refreshes KYC and what triggers extra charges.
Dormancy and inactivity
Many offshore banks levy dormancy fees after 6–12 months with no client-initiated transactions. Expect $10–$50 per month, rising to $100+ for corporate structures. Some will freeze accounts, and reactivation can cost $50–$250 plus updated documents.
Payment and transfer fees
- SWIFT/telegraphic transfer: $10–$50 per outgoing wire, $10–$25 incoming. More private or niche banks often charge $40–$100 per outgoing.
- Payment instructions: OUR/SHA/BEN charges matter. With “OUR,” sender pays all fees; with “SHA,” each side pays their bank; with “BEN,” recipient pays all. Even with OUR, intermediaries sometimes still deduct “lifting fees” ($10–$30 each).
- Correspondent bank fees: $10–$40 per intermediary, sometimes more for exotic corridors or small currencies. Multi-hop chains can double that.
- Payment investigations, amendments, recall: $25–$100 per request, plus the other bank’s charges and no guarantee of success.
Pro tip: For significant wires, ask for a copy of MT103 and the correspondent chain. If large shortfalls keep happening, renegotiate your bank’s correspondent path or switch to a provider with direct clearing.
Currency conversion (FX) costs
This is the big one. Most clients look at the visible fees and miss the spread:
- FX spread: 0.25%–0.75% for large-volume/private clients; 1.0%–3.0% for retail; 0.5%–1.5% for SMEs with negotiated pricing. Exotic pairs add 0.5%–3.0% more.
- Cross-currency card transactions: Bank markup of 2%–3.5% is common. Add network fees (0.2%–1.0%), sometimes folded into the rate.
- Dynamic currency conversion (DCC): Merchants offer to charge you in your “home” currency. Margins are often 3%–6% worse than your bank’s conversion.
Common mistake: Comparing your rate to yesterday’s central bank rate. The correct benchmark is the live mid-market interbank rate at the moment of the trade. Use real-time sources (Bloomberg, Refinitiv, XE mid) to measure the true spread.
Compliance and document fees
- KYC/EDD refresh: $100–$1,000 per year for standard profiles; $1,000–$5,000 for complex structures.
- Document services: Certified statements, bank reference letters, and signed originals can be $20–$100 each. Apostille/legalization $50–$150 per document, plus courier.
- Courier: $20–$75 per dispatch; more for express or cross-border compliance packages.
I’ve seen clients pay $1,000+ per year just in document/courier churn because they chose a bank that insists on paper for every minor update.
Cards and cash handling
- Card issuance/renewal: $25–$100. Replacement: $25–$75.
- ATM withdrawals: $2–$5 per withdrawal plus a 1%–2.5% foreign transaction fee; network surcharge may apply on top.
- Card FX markup: 2%–3.5% is common unless you have a premium card tied to a multi-currency account.
- Cash deposits/withdrawals: 0.2%–1% of the amount, minimum $20–$50. Some banks ban cash entirely for offshore clients.
Investment and custody fees
- Custody: 0.10%–0.40% per year for ETFs and listed equities; 0.40%–1% for mutual funds; minimums of $100–$500 per quarter.
- Brokerage: $5–$50 per trade for listed securities; 0.10%–0.35% for larger trades. Some private banks still charge 0.5%+ dealing commissions.
- FX on trades: Converting settlement currency adds another 0.25%–1%.
- Corporate actions: Mandatory actions are often free, but voluntary corporate actions, proxy voting, or tax reclaims can carry $25–$150 fees each.
- Fund retrocessions/trailer fees: In some jurisdictions, banks keep a slice of fund expenses (0.25%–1%+). MiFID II has curbed this in the EU, but elsewhere retrocessions persist unless you negotiate “clean share classes.”
If your bank is “advising” funds with high total expense ratios and no fee rebates, you’re probably paying twice—once in custody/advice and again in fund costs.
Interest and balance-related charges
- Negative interest: In low-rate environments (recent years in CHF/EUR), banks charged -0.25% to -0.75% on large cash balances. Policies change with rate cycles.
- Sweep accounts and pooling: Notional pooling and cash concentration can carry setup fees ($500–$5,000) and monthly charges ($100–$1,000+), plus intercompany loan documentation costs for tax compliance.
- Margin on deposit rates: If interbank overnight is 3.5% and your USD account earns 0.5%, the 3.0% gap is part of the bank’s margin. Not a “fee,” but functionally a cost.
Lending fees unique to offshore setups
- Facility/arrangement fee: 0.5%–2% of the committed amount.
- Commitment/non-utilization: 0.25%–1% on undrawn balances.
- Legal/documentation: $2,000–$25,000 depending on jurisdiction and collateral.
- Valuation/third-party: Property valuation, yacht/aircraft inspection, legal opinions—$1,000–$20,000+.
- Prepayment/break costs: For fixed-rate loans, you may owe the discounted value of the bank’s funding loss—can be significant.
Company and trust structure extras
- Corporate account changes: Signatory updates, mandate amendments, board resolution vetting—$50–$500 per change.
- FATCA/CRS classification and annual certifications: $100–$1,000 per year for entities, more for trusts.
- Trustee fees: $2,000–$10,000 per year for standard trusts; add hourly charges for distributions, investment approvals, and tax reporting.
- Registered agent and government fees: Not a bank fee, but tied to keeping the structure open—$500–$2,500 per year depending on jurisdiction and company type. Banks sometimes pass through registered agent confirmations for KYC at your cost.
Closure and termination charges
Closing an account can cost $50–$500, more if the bank must liquidate assets, remit balances, or produce archive statements. Early closure (within 6–12 months) can trigger the clawback of waived opening fees.
How fees hide in plain sight
Banks don’t need to be sneaky to bury costs; the system does it for them. Here’s where to look:
- “No commission” FX with a wide spread. Always compare your quoted rate to mid-market at the time of execution. A 1.8% spread on a $100,000 conversion is a $1,800 fee wearing a different hat.
- OUR wires that still arrive short. Intermediaries take lifting fees, and not all banks honor OUR perfectly. If it keeps happening, escalate and request a different correspondent route or a fee refund.
- Bundled “service packages.” A $100 monthly “concierge” fee might cover services you don’t use. Similarly, “Premier” tiers waive some charges but add a relationship fee in the background.
- Tiered penalties. Minimum balance penalties compound with maintenance fees; if you’re often below threshold, your effective monthly cost can triple.
- Statements that net out fees. Custody charges or card FX fees can be netted from cash flows or statements in a way that hides the true annual total.
Regional differences and typical ranges
- Caribbean and Central America: Retail-oriented offshore centers may have lower entry requirements but higher per-transaction fees. Expect $25–$60 per outgoing wire and wider FX spreads (1.5%–3%).
- Channel Islands and Isle of Man: Solid for UK/EU-linked wealth. Maintenance fees are mid-range; FX spreads are moderate (0.5%–1.5%) with negotiation.
- Switzerland and Liechtenstein: Excellent service and stable custody. High minimums, strong compliance. Custody 0.10%–0.30% for ETFs, larger FX volumes priced tightly if you push for it. Retrocessions still exist outside EU rules; ask for clean shares.
- Singapore and Hong Kong: Competitive for multi-currency business accounts. FX spreads can be sharp (0.25%–0.75%) for volume clients. Onboarding can be stricter for foreign companies, with meaningful EDD fees.
- UAE: Attractive for regional access. Per-wire fees reasonable, FX can vary widely by bank. Company account onboarding fees higher due to KYC complexity, especially for free zone entities.
- Niche jurisdictions: Some smaller banks offset limited correspondent networks with higher correspondent fees and slower processing. Balance the operational friction against any tax or asset protection benefits.
Realistic scenarios that show the hidden costs
Scenario 1: The $100,000 payment with “cheap” wires
- Bank A charges $20 per outgoing wire. Great. But the payment to Europe passes through two correspondent banks that deduct $20 each. Receiver gets $99,940—short by $60.
- You resend $60 “make-up” via another wire: another $20 fee plus another intermediary deduction of $20. Now you’re at $120 in explicit and correspondent costs.
- If you had used OUR with a bank that honors it properly or a direct-clearing provider, total cost might have been a flat $30–$50, no shortfall.
Lesson: The face-value wire fee rarely tells the story. Route and correspondent agreements matter more.
Scenario 2: The FX conversion “without commission”
- You convert $250,000 from USD to EUR. The bank quotes 0.9100 when mid-market is 0.9260. That’s a 1.7% spread—about $4,250 cost—without any explicit fee.
- A negotiated tier could bring the spread to 0.5% ($1,250). A specialist FX provider could get it to 0.15%–0.30% in size, depending on relationship.
Lesson: Always benchmark FX against live mid and calculate spread in basis points.
Scenario 3: The corporate account with light activity
- A small exporter holds $40,000 average balance. The bank requires $50,000 minimum to waive fees.
- Monthly: $50 maintenance + $100 minimum balance penalty + two outgoing wires at $35 each + $30 statement courier = $250+.
- Annual cost: $3,000+, or 7.5% of average balance, before any FX.
Lesson: If your balance routinely sits below threshold, switch to a bank or fintech with lower minimums, or commit to the minimum and negotiate a better package.
How to uncover and negotiate fees
Step-by-step due diligence
- Request the full tariff sheet. Not just a brochure—ask for the detailed schedule including correspondent and investigation fees.
- Ask for FX pricing tiers in writing. Specifically: the markup over mid-market or over a named benchmark (e.g., Reuters mid), in basis points, by volume.
- Clarify payment routing. Which correspondents are used by currency? Will OUR be honored end-to-end? What is the bank’s policy on refunding unexpected lifts?
- Test with small transactions. Send a $100 or $1,000 wire with OUR and check the amount received. Measure the FX spread on a small conversion and compare to mid at the transaction time.
- Identify compliance triggers. What events (new shareholder, change of address, industry updates) trigger EDD and extra fees? How often are KYC refreshes scheduled?
- Map all annual documents. List every statement, reference letter, apostille, and courier you expect. Ask for a bundle or waiver if you hit a volume.
- Ask for clean share classes and no retrocessions. If you invest through the bank, request clean share classes and a transparent advisory fee instead of embedded commissions.
- Get a relationship manager’s email confirmation. Written commitments reduce surprises.
Negotiation tactics that work
- Consolidate volume: “If I route $5M annual FX and $2M in wires through you, can you cap FX at 30 bps and wires at $15 flat with OUR honored?” Volume makes a difference.
- Competing quotes: Share anonymized offers from other banks or FX providers. Banks expect this—and often match.
- Package pricing: Ask to swap a monthly maintenance fee for lower per-transaction fees (or vice versa) based on your actual usage pattern.
- Time-bound reviews: “Let’s review pricing after 90 days of live volume; if I meet thresholds, lock in the next tier.”
- Ask for a “no surprises” clause: If correspondent fees are deducted despite OUR, request a refund policy or credit.
I’ve seen clients cut total costs 30%–60% just by pinning down FX bps, routing, and a few line items. The best wins usually come from tightening FX and correspondent leakage.
Tools to calculate your real cost
- Build a simple spreadsheet: Columns for transaction date, amount, currency, quoted rate, mid-market rate at that time, spread (bps), explicit fees, and net received/sent.
- Sources for mid-market: Bloomberg, Refinitiv, XE, or even Google Finance for a quick check. Screenshot the rate at transaction time for records.
- Effective cost per category: Sum explicit fees, correspondent deductions, and FX spread costs. Divide by total volume to get a basis-point figure for each category.
- Annualized view: Total all costs and calculate as a percentage of average account balance and as a percentage of transaction volume. This shows whether your bank economics make sense.
If your total all-in cost is north of 1% of volume for a relatively standard flow, you can usually do better.
Mistakes that quietly drain money
- Accepting “OUR” as a guarantee. It isn’t. The bank must also have the right correspondent relationships to make it stick.
- Using the bank for every FX trade out of habit. Specialist FX brokers (regulated) often have tighter spreads and can settle to your offshore account.
- Ignoring custody minimums. A 0.20% custody fee sounds fine until you hit a $500 quarterly minimum on a modest portfolio.
- Falling for DCC at hotels and ATMs. Always choose to be charged in the local currency and let your card do the conversion.
- Opening structure-first, bank-second. Set up a company or trust, then discover your chosen offshore bank won’t onboard your industry or jurisdiction without expensive EDD—double cost and delay.
- Forgetting tax-year document requests. Waiting until the last minute for annual statements and confirmations can force courier and rush fees.
Corporate treasury wrinkles
For companies, the fee landscape gets an extra layer:
- Multi-currency accounts: Charges for opening additional currency sub-accounts ($25–$200 each) and monthly fees per currency.
- Notional pooling/cash concentration: Setup fees, monthly management fees, and intercompany interest documentation requirements to keep tax authorities happy.
- Bank service billing: Some banks use account analysis statements that net credits against services. If you don’t understand the metrics (ECR—earnings credit rate), you’ll miss the chance to offset fees.
- Cross-border payroll: Mass payments can draw per-credit fees ($0.10–$0.50 each) plus file upload charges. Some banks price by batches; others per transaction.
- API/host-to-host connectivity: Monthly platform fees ($100–$1,000+), setup costs, and per-call charges for premium data.
Practical tip: Run an RFP. Describe your flow: currencies, monthly volume, number of payments, average ticket size, and required corridors. Ask for line-item pricing and FX tiers. Score responses on total cost, not just headline fees.
U.S. persons and other taxed-at-residence clients
If you’re a U.S. citizen or resident, or from any country with strict tax reporting, expect extra friction:
- FATCA-driven onboarding: More document checks, possible EDD, and occasionally annual FATCA certification fees for entities.
- Annual statements: Ask for consolidated year-end tax packs. Some banks charge for additional statement formats or mailing originals for tax purposes.
- Reporting overlap: Independent from bank fees, you may incur accounting costs (FBAR, Form 8938 for the U.S.). Some banks provide data extracts that reduce your CPA bill; others force you to pay for manual reconciliation.
Investment account specifics: the quiet leakages
- Advisory vs. execution-only: Advisory accounts sometimes hide compensation in fund retrocessions. Ask for an explicit advisory fee (e.g., 0.5%–1.0%) and clean share classes to avoid double fees.
- Custody minimums: A 0.15% custody fee with a $300 quarterly minimum penalizes small balances. If you have $100,000 in assets, that minimum equates to 1.2% annually—unacceptable unless you get other value.
- Withholding tax reclaims: Banks may charge $50–$150 per reclaim. If you hold dividend-heavy assets, this adds up.
Practical playbook:
- Prefer ETFs and clean-share funds.
- Ask for custody fee caps, netting across accounts.
- Execute FX for investments via negotiated bps tiers.
Card usage: practical ways to avoid gotchas
- Always decline DCC. If a terminal asks “Charge in USD or local currency?” choose local. You’ll usually save 3%–6%.
- Use multi-currency cards. Load balances in the destination currency at a competitive FX rate before you travel.
- Watch ATM networks. Some offshore banks partner with global networks to waive ATM fees. Check the list and stick to those ATMs.
- Fee alerts. Set SMS or app alerts for card transactions so you spot unexpected cross-border or network charges quickly.
When paying more actually makes sense
Cheapest isn’t always best. I’ve advised clients to accept slightly higher maintenance fees in exchange for:
- A bank with direct clearing in your main corridors (fewer correspondent deductions).
- Tight, guaranteed FX spread tiers in writing.
- A responsive relationship manager who actually fixes routing problems.
- Robust digital tools (APIs, bulk payments, multi-user controls) that save accounting hours.
If $1,000 more in bank fees saves you $4,000 in FX spread and $2,000 in correspondent leakage, that’s a win.
A practical checklist to audit your fees this month
- Pull 6–12 months of statements.
- List every wire sent/received: fee charged, amount received by counterparty, and any shortfall.
- For each FX transaction, record quoted rate and compare to live mid at the time. Calculate spread in bps.
- Tally maintenance, minimum balance penalties, dormancy charges, and card fees.
- For investment accounts, sum custody, trade commissions, and fund TERs (ask for the fund fact sheets).
- Add courier, document, and compliance charges.
- Compute:
- Total explicit fees
- Total implicit fees (FX spread)
- Correspondent deductions
- Grand total as a % of average balance and as bps of total transaction volume
- Identify top three leaks. Usually: FX spread, correspondent deductions, and minimum balance penalties.
- Send your bank a concise request:
- FX: “Please provide written FX tiers in basis points over mid for monthly volumes of $250k, $1m, and $5m.”
- Wires: “Confirm OUR treatment and the correspondent chain for USD and EUR. Provide your policy for refunding unexpected intermediary fees.”
- Maintenance: “Propose a package that waives minimum balance penalties in exchange for [volume/fees].”
- Re-test in 60 days. Measure improvement.
Red flags when choosing a bank
- No written FX tiers. If they won’t commit, assume you’ll pay retail spreads.
- Opaque correspondent paths or refusal to share MT103 details.
- Heavily paper-based processes with high courier reliance.
- Aggressive cross-sell of high-TER funds with no discussion of clean shares.
- High minimums with penalties and little offsetting value for your situation.
What good looks like
A well-structured offshore setup for an SME or internationally active individual typically looks like this:
- A multi-currency account with clear FX tiers (e.g., 25–40 bps for G10 currencies over mid).
- Outgoing wires at a flat $15–$25, with OUR honored and refunds for unexpected lifting fees.
- Maintenance fee <$25/month or waived for balances above a realistic threshold for your situation.
- Investment custody at 0.10%–0.20% with a reasonable minimum, clean share classes, and explicit advisory fees if used.
- Digital statements and verifiable FX rate transparency (timestamps and benchmarks).
- A named relationship contact who answers within one business day.
I’ve seen clients achieve this with both large international banks and smaller, well-run institutions. The differentiator is the willingness to document terms and the bank’s actual control over payments and FX execution.
A quick script for negotiating with your bank
- “We send $3 million per year in USD and EUR payments, average ticket $50,000, mainly to the UK and EU. Our goal is a predictable, all-in cost.”
- “Please provide: (1) FX spread in bps over mid by volume tier; (2) outgoing SWIFT fee; (3) OUR processing policy and correspondent list; (4) monthly maintenance and balance thresholds.”
- “We require written confirmation that unexpected intermediary deductions on OUR payments will be refunded or credited.”
- “If we commit to routing FX and payments through you for 12 months, can you offer 30 bps FX, $20 OUR wires, and waive the monthly fee above a $50,000 balance?”
- “We’ll review after 90 days based on actual volumes and performance.”
Put that in an email. You’ll be surprised how often pricing improves within a week.
Key takeaways you can act on
- Most offshore banking costs hide in FX spreads and correspondent deductions, not the headline wire fee.
- Get everything in writing: FX bps over mid, OUR handling with refund policy, and full tariff schedules.
- Test and measure. A couple of small transactions will reveal true routing and spread behavior.
- Optimize your structure for your real usage. If you don’t hold big balances, choose a bank with low minimums; if you do, negotiate maintenance away.
- Use specialist providers where they add value: FX brokers for large conversions, fintech platforms for low-cost transfers, and banks for custody and complex services.
Do the math once, set firm terms, and revisit every six to twelve months. Offshore banking doesn’t have to be expensive or opaque—if you run it like a disciplined procurement exercise instead of a leap of faith.