Key Takeaways
- HMRC publishes customs exchange rates monthly on the penultimate Thursday, fixed for the entire following calendar month — June 2026 rates are EUR 1.1550, USD 1.3399, CNY 9.1168 per £1.
- The 52-week GBP/EUR range (1.1314–1.1876) represents a 4.96% swing — enough to wipe out margins on a £100,000 invoice by approximately £4,200 in GBP terms.
- Forward contracts lock in an exchange rate for a future payment date, priced based on interest rate differentials between the two currencies (covered interest rate parity).
- If your sale contract specifies a fixed exchange rate and you receive payment in GBP, that contractual rate must be used for customs valuation, then converted back using the HMRC-published rate at import.
- Smaller importers can use natural hedging (matching currency revenues and costs), batch timing, and specialist FX brokers instead of complex derivatives.
Why Currency Risk Matters for UK Importers
A UK importer paying €100,000 to a German supplier faces different GBP costs depending on the exchange rate at payment time. At the HMRC June 2026 customs rate of EUR 1.1550 per £1, that invoice translates to £86,580. At the 52-week low of 1.1314 (Bank of England daily spot rates, 29 May 2026), the same invoice costs £88,390 — a difference of £1,810.
Across a year of trading, these swings compound. The GBP/EUR 52-week range of 1.1314 to 1.1876 represents approximately 4.96% volatility. For an importer with €1 million in annual purchases, the currency movement alone could vary costs by around £42,000 in GBP terms. For businesses operating on thin margins — common in distribution and manufacturing — a 5% FX swing can turn a profitable contract into a loss.
Currency risk hits importers at two points: the commercial payment to the supplier (where you actually exchange currency), and the customs declaration (where HMRC requires all foreign currency amounts to be converted to GBP using their published monthly rates). These two conversions may not align, creating a second layer of exposure.
This article explains how HMRC sets customs exchange rates, the hedging tools available to UK importers, and a practical workflow for managing FX risk on import payments.
How HMRC Sets Customs Exchange Rates
HMRC publishes customs exchange rates on the penultimate Thursday of every month, with rates applying to the full following calendar month. The June 2026 rates were published on 20 May 2026 and are effective from 1–30 June 2026. Rates are fixed at midday on the day before publication, per the Taxation (Cross-border Trade) Act 2018, Section 18.
The current rates are accessible via the UK Trade Tariff exchange rates hub at trade-tariff.service.gov.uk/exchange_rates. For June 2026, the key rates per £1 are:
| Currency | HMRC June 2026 Rate |
|---|---|
| EUR | 1.1550 |
| USD | 1.3399 |
| CNY | 9.1168 |
These are the rates importers must use for customs declarations throughout June 2026, regardless of the actual commercial exchange rate achieved on individual transactions.
The 5% Weekly Deviation Trigger
HMRC does not simply set rates and forget them. The published rates are checked weekly against commercial selling rates. If any rate deviates by more than 5% from the commercial rate, HMRC updates that specific rate the following week. This provides a safety valve for extreme volatility — though in practice, such large weekly moves are rare.
For context, the GBP/CNY rate has shown the most volatility over the past 52 weeks, ranging from 9.0899 to 9.8387 — an 8.2% swing. The GBP/USD range is approximately 6.4% (1.2596 to 1.3399). These movements are measured over a full year; weekly deviations exceeding 5% would require extraordinary market events.
Fixed Contract Rate Rule
There is an important exception to the standard HMRC rate usage. If a sale contract specifies a fixed exchange rate and the seller receives payment in GBP, that contractual rate must be used for customs valuation. The customs value is then converted back using the HMRC-published rate at the time of import.
This rule matters for long-term supply agreements where pricing is indexed to a fixed FX rate. Importers using such contracts should document the contractual rate and be prepared to demonstrate it to HMRC if queried.
All Foreign Currency Must Convert to GBP
Per HMRC guidance on converting foreign currency for customs value, all foreign currency amounts must be converted to GBP for customs declarations. This includes invoice values, freight charges, insurance, and any other charges shown in foreign currency. The conversion uses the HMRC-published monthly rate, not the commercial rate you achieved.
This creates a potential mismatch: you may pay your supplier at a commercial rate of EUR 1.1700, but declare customs value at HMRC’s rate of EUR 1.1550. Duty and import VAT are calculated on the HMRC-rate value.
FX Hedging Tools Available to Importers
Importers have several options for managing currency risk. The right choice depends on transaction size, frequency, and risk tolerance.
Forward Contracts
A forward contract locks in an exchange rate for a future payment date. You agree today to buy a specified amount of foreign currency on a specific future date at a predetermined rate.
How forward pricing works: UK banks and FX specialists price forward contracts based on the interest rate differential between the two currencies — a principle known as covered interest rate parity. Forward points are added to or subtracted from the spot rate. For GBP/EUR, with UK interest rates currently higher than ECB rates, forward points typically favour the buyer of EUR (a forward premium).
Typical terms: Forwards are available from one week to five years, though most importers use one to twelve-month contracts. The rate is fixed — you must complete the transaction on the agreed date, even if the spot rate has moved in your favour.
Best for: Known future payments with fixed dates. Ideal for regular supplier payments where invoice dates and values are predictable.
FX Options
An FX option gives you the right, but not the obligation, to buy currency at a set rate on or before a specified date. You pay a premium for this flexibility.
How it works: If the market moves against you, you exercise the option and buy at the agreed rate. If the market moves in your favour, you let the option expire and buy at the better spot rate.
Cost: The premium is typically 1-3% of the notional amount, depending on volatility and time to expiry.
Best for: Situations where payment dates or amounts are uncertain, or where you want downside protection without giving up upside potential.
Spot Transactions
A spot transaction is an immediate exchange at the current market rate, with settlement typically within two business days.
How it works: You instruct your bank or FX provider to buy currency at the prevailing spot rate. The rate is fixed at the moment of execution.
Risk: You have no protection against adverse moves between deciding to pay and actually executing. For large payments, even intraday volatility can be material.
Best for: Immediate payments, small transactions where hedging costs outweigh the risk, or when you have a strong view on near-term rate movements.
Multi-Currency Accounts
Many UK banks and specialist FX providers offer multi-currency accounts that let you hold foreign currency balances.
How it works: You convert GBP to EUR (for example) when rates are favourable and hold the EUR balance until payment is due. This gives you control over timing without committing to a specific forward date.
Flexibility: You can build up currency balances over time, averaging your exchange rate across multiple conversions. This is a form of “pound cost averaging” for FX.
Best for: Importers with regular payments who want flexibility without the rigidity of forward contracts.
Comparison Table
| Tool | Rate certainty | Flexibility | Upfront cost | Best use case |
|---|---|---|---|---|
| Forward contract | Fixed | Low — must complete on date | None (spread only) | Known future payments |
| FX option | Protected downside, upside retained | High — can walk away | Premium (1-3%) | Uncertain dates/amounts |
| Spot transaction | None — rate at execution | High — execute anytime | None (spread only) | Immediate payments |
| Multi-currency account | You control timing | High — convert when you choose | None (spread + possible account fees) | Regular payments, rate averaging |
Practical Workflow: Hedging an Import Payment
Here is a step-by-step workflow for managing FX risk on a typical import payment.
Step 1: Identify Exposure Date and Amount
Review your purchase orders and supplier payment terms to determine the currency, amount, and expected payment date. For example: €50,000 due to a German supplier on 15 July 2026.
Step 2: Check HMRC Customs Rate for the Month
Before hedging the commercial payment, check which HMRC customs rate will apply. For a 15 July payment, you need the July 2026 rate (published on the penultimate Thursday of June). This matters because your customs declaration will use the HMRC rate, not your commercial rate.
If the HMRC rate is significantly different from current spot, factor this into your costing. The duty and import VAT will be calculated on the HMRC-rate value.
Step 3: Get Forward Contract Quotes
Contact your bank or FX specialist for forward rate quotes. Request rates for the specific value date (15 July 2026 in this example). Compare quotes from at least two providers — spreads can vary materially.
Ask for the “all-in” rate including any fees. Some providers quote tight spreads but add transaction fees; others bundle everything into the rate.
Step 4: Compare Forward vs Spot
Compare the forward rate with the current spot rate. The difference is the forward points, reflecting the interest rate differential.
If the forward rate is close to spot (within 0.5-1%), the cost of certainty is low. If the gap is wider, consider whether you need certainty or can accept some risk.
Step 5: Execute and Document
Once you decide, execute the hedge. For a forward contract, you will receive a confirmation showing the agreed rate, value date, and amount. Keep this documentation — it may be useful for accounting (hedging may qualify for hedge accounting treatment under FRS 102) and for internal cost tracking.
Step 6: Link to Customs Valuation
When the goods arrive and you file the customs declaration, use the HMRC-published rate for the month of import to convert the invoice value to GBP. This is separate from your commercial hedge but should be tracked together for full cost visibility.
The customs valuation follows Method 1 (transaction value) under the WTO Valuation Agreement framework, with currency conversion as a step within that method.
Cost-Effective Hedging for Smaller Importers
Not every importer needs complex derivatives or dedicated FX treasury functions. Smaller businesses can manage currency risk effectively with simpler approaches.
Natural Hedging
If you have revenues in the same currency as your import costs, you can match them naturally. For example, a UK distributor selling to EU customers in EUR can use those EUR revenues to pay EUR supplier invoices, avoiding GBP conversion altogether.
This is the most cost-effective hedge — no transaction costs, no premiums, no spreads. The challenge is matching timing and amounts, which rarely align perfectly.
Batch Timing
Instead of hedging each invoice individually, consolidate payments and time them strategically. If you have multiple EUR payments due in a month, consider making them all on the same day when the rate is favourable.
This requires monitoring rates and having flexibility with suppliers. Some suppliers offer early-payment discounts that may outweigh a modest FX gain from waiting.
Specialist FX Brokers vs High-Street Banks
High-street banks often charge wider spreads (2-4% is not uncommon for smaller businesses). Specialist FX brokers typically offer tighter spreads (0.5-1.5%) and may provide forward contracts with no minimum size.
For a £50,000 equivalent transaction, the spread difference between a bank (3%) and a broker (1%) is £1,000. Over a year of trading, this adds up.
When Not to Hedge
Hedging has costs — even if not explicit. For very small transactions (under £5,000 equivalent), the cost of a forward contract or option may exceed the potential loss from currency movement. In such cases, accepting the risk and budgeting for a contingency (e.g., assuming a 3-5% adverse move) may be more efficient.
Similarly, if your margins are wide enough to absorb typical FX swings, hedging may be unnecessary. The key is understanding your exposure and making an informed choice.
Frequently Asked Questions
What is the HMRC customs exchange rate for June 2026? The HMRC customs exchange rates for June 2026 are EUR 1.1550, USD 1.3399, and CNY 9.1168 per £1. These rates were published on 20 May 2026 and apply to all customs declarations made during June 2026.
How often does HMRC update customs exchange rates? HMRC publishes new rates monthly on the penultimate Thursday of each month, effective for the following full calendar month. Rates are only updated mid-month if a weekly check shows a deviation of more than 5% from commercial rates — this is rare.
Can I use my bank’s exchange rate for customs declarations? No. HMRC requires use of their published monthly rates for customs valuation, regardless of the commercial rate you achieved. The only exception is if your contract specifies a fixed exchange rate and you receive payment in GBP — in that case, the contractual rate is used, then converted back using the HMRC rate.
What is the difference between a forward contract and an FX option? A forward contract obligates you to exchange currency at a fixed rate on a specific date. An FX option gives you the right, but not the obligation, to exchange at a set rate — you pay a premium for this flexibility. Forwards have no upfront cost but no flexibility; options cost 1-3% premium but let you walk away if rates move in your favour.
Do I need to hedge if I only import occasionally? For occasional imports with small values (under £5,000 equivalent), the cost of hedging may exceed the potential currency loss. Budgeting for a 3-5% contingency may be more efficient. For larger or regular imports, hedging provides cost certainty that helps with pricing and margin planning.
How does currency hedging interact with import VAT? Import VAT is calculated on the customs value, which uses the HMRC-published monthly rate — not your commercial hedge rate. Your hedge protects the commercial payment to your supplier; the customs value is a separate calculation. Track both for full landed-cost visibility.