Cross-border payments are the second-biggest cost UK freelancers underprice — most lose 3–5% of every overseas invoice to bad FX rates. This hub covers the setup that minimises it, the payment rail choice by client country and invoice value, and the UK tax handling.
Who this hub is for
UK freelancers invoicing overseas clients, paying overseas suppliers, or accumulating multi-currency balances. The international payments layer is where most UK freelancers under-optimise — paying 3-5% in FX margins they could be paying 0.3-0.5%. Over a year of £20k+ in overseas invoicing, the difference is real money and pays back the half-hour it takes to set up a Wise or Instarem account.
Start with the anchor guide for the complete setup. The best-way-to-get-paid matrix walks through payment rail choice by client country and invoice value. The Wise vs Instarem comparison and the PayPal vs bank transfer comparison are the two most-asked questions in this space. The foreign-currency invoice guide and the VAT reverse charge page cover the tax-and-bookkeeping side that is essential for HMRC compliance.
Reviewed mid-2026. FinTech provider pricing shifts frequently; verify current fee structures directly with each provider before relying on them.
The anchor guide
Start here for the complete setup that works: which payment rails to accept, which to push back on, and how multi-currency accounts fit into UK freelancer accounting.
Picking the right payment rail
Decision matrix by client country and invoice value. SEPA for EU under £5k; SWIFT for higher US/Asia; PayPal where convenience wins; Wise as the multi-currency default.
Wise vs Instarem — the two leading multi-currency options
Both run interbank-rate FX with low markups. Wise is the default; Instarem competes on rate for certain corridors.
Foreign-currency invoicing
When to invoice in GBP vs client currency, how HMRC requires you to record FX, VAT reverse-charge interaction.
VAT on overseas services
Place of supply rules determine whether your overseas client invoice is outside scope, zero-rated, or standard-rated UK VAT.
UK business bank account context
Multi-currency accounts pair with — not replace — your main UK business account.
International payments decision framework
- "Where's my client?" — Europe (SEPA), US (SWIFT or Wise), Australia/Asia (Wise or Instarem). The right rail depends on country.
- "What's the invoice value?" — small (under £500) → PayPal acceptable. Medium (£500-£5k) → Wise or Instarem. Large (£5k+) → SWIFT direct or Wise Business.
- "Should I invoice GBP or client currency?" — typically GBP for simplicity; client currency if it materially improves win rate. See guide.
- "Wise or Instarem?" — Wise is the default. Instarem competes on rate for certain corridors. See comparison.
- "PayPal or bank transfer?" — Bank transfer wins on cost. PayPal wins on speed. See comparison.
Common UK international payment mistakes
- Accepting payments to your main UK business account at the bank's FX rate — typically 3-5% margin. Use Wise multi-currency receiving accounts instead and the cost drops to near zero.
- Invoicing in GBP for a US client — they convert at their bank's rate; you're invisible to that cost but it makes you more expensive than competitors who invoice USD.
- Using PayPal for high-value invoices — PayPal's 3.4%+ fees + currency conversion add up fast. Acceptable for £200 deposits; expensive for £5,000 invoices.
- Missing reverse-charge VAT on overseas service purchases — Fiverr, AWS, Stripe etc. all trigger this. See reverse charge guide.
- Not recording FX in your accounts properly — HMRC requires consistent treatment (monthly average rate or spot rate). Pick one, document, apply consistently.
- Slow client payment because of bad payment instructions — clear instructions on the invoice (IBAN, SWIFT, intermediary bank if needed) speed payment by days.
UK international payment landscape 2026
The UK international payments market has shifted heavily away from traditional banks toward FinTech alternatives — Wise, Revolut Business, Airwallex, Instarem, Payoneer. Typical mid-2026 cost picture:
- Wise Business: mid-market rate + 0.4% on average corridors
- Instarem: mid-market rate + 0.3-0.5% on competitive corridors
- Revolut Business: mid-market rate + variable percentage
- High street UK business banks: typically mid-market rate + 2-3% plus £15-30 SWIFT fee
- PayPal: 3.4% transaction fee + 3-4% FX margin on overseas receipts
The fee gap is real money for freelancers handling £20k+/year in international invoicing. A FinTech multi-currency account paired with your main UK business account is the modern UK freelance setup.
Glossary — key terms in this cluster
- SWIFT
- International bank wire network. Slow (1-5 days), expensive (£15-£30 fee + FX margin).
- SEPA
- Single Euro Payments Area — fast, low-cost euro payments within Europe.
- Wise multi-currency
- Receiving account in major currencies (USD, EUR, AUD) that lets you accept local-rail payments without FX conversion.
- Mid-market rate
- The actual interbank exchange rate. The fairest reference point — providers add a margin above this.
- Spot rate
- The exchange rate at a specific moment in time. HMRC accepts spot rate or monthly average rate for FX accounting.
- BIC / SWIFT code
- International bank identifier. Required for SWIFT transfers.
- IBAN
- International Bank Account Number. Required for SEPA and most international transfers.
- Intermediary bank
- A correspondent bank that routes SWIFT payments. Can add fees and delay.
Cluster FAQ
Wise Business is the default. Instarem competes on rate for certain corridors. See comparison.
GBP for simplicity (no FX risk to you). Client currency if it materially improves win rate or reduces friction for the client. See guide.
Convert to GBP using either spot rate on transaction date or HMRC monthly average rate. Pick one, document, apply consistently.
Usually no for B2B (reverse charge applies). Often yes for B2C depending on service type. See international services VAT.
PayPal wins on speed and convenience but costs 3-4%+ in fees. Bank transfer (especially via Wise) wins on cost.
Typical 2-3% FX margin + £15-30 SWIFT fees. FinTech alternatives charge 0.3-0.5% margin and no/low fees.
About this hub
This hub is part of FreelanceToolkit UK, an editorial site for UK freelancers and contractors. Every guide and tool here is written and maintained by the FreelanceToolkit UK editorial team using public HMRC, Companies House and regulator sources. See our editorial policy and sources & methodology for how we approach factual accuracy. Affiliate disclosure is in our disclosure page.
Editorial guidance only — not regulated tax, legal, insurance, mortgage or financial advice. For specific decisions consult a qualified professional. See sources & methodology.