United Kingdom implements a 50% standard import duty on specified steel products and removes preferential or zero rates for excepted goods starting 1st July 2026.
The UK has updated its tariff schedule to impose a 50% standard import duty on specified steel products and create an Excepted Goods Table from 1 July 2026.
The change will limit the amount of steel that can enter the UK without the new charge. It applies to steel products that can be made domestically, including flat products, long products and certain tubes. Imports above the new quotas will face a duty calculated on the value of the goods.
The measure is intended to support UK steel production for critical infrastructure and defence supply chains. The importer pays the duty, although a temporary exemption covers some shipments linked to contracts made before the change.
The revised tariff is version 1.32, dated 25 May 2026, replacing version 1.31 of the UK Tariff1. It also creates a new table of commodity codes whose goods can be charged at the standard rate even where another tariff would normally apply.
That reaches beyond the ordinary most-favoured-nation tariff. The standard rate can override a preferential trade agreement, a developing-country preference, a tariff quota or tariff-free access available to goods from British Overseas Territories. The result is a measure that affects both the steel duty itself and the routes normally used to reduce it.
Steel quotas fall on July 1
The new regime starts on 1 July 2026, immediately after the existing steel safeguards end2. The previous system combined tariff quotas with a 25% additional safeguard duty. From the start of July, that safeguard duty and its quotas cease, while the replacement system sets a lower level of tariff-free access.
Old safeguard vs new regime, %
Overall quota volumes are cut by 51% compared with the former safeguard measure3. Steel inside the new quota can enter without the new out-of-quota charge, but steel above the applicable limit faces 50% of the value of the goods3. The duty is calculated before any other import duties are added.
The size of the quota therefore becomes a direct cost issue for importers and customs brokers. A shipment that arrives after the relevant allocation is exhausted can move from tariff-free treatment to a charge equal to half its customs value. That gap can materially change the delivered cost of steel used in construction, engineering, machinery and manufactured goods.
Quota access will be granted by HM Revenue and Customs on a first come, first served basis4. Importers must identify the relevant order number when applying for a quota, using the number in the government’s table or the online tariff tool. The process makes the timing of customs declarations commercially important, rather than treating the quota as an entitlement that can be secured after arrival.
HMRC will treat a quarterly quota as critical once 90% of its volume has been allocated4. When that point is reached, an importer may have to provide security for the full duty amount because a quota claim can be refused. Unused country-specific or residual quota rolls into the following quarter, but unused volumes cannot be carried into the next quota year2.
The Excepted Goods Table
The legal changes place the new steel lines in an Excepted Goods Table in Annex III of Part Three of the UK Tariff. For those lines, the standard import duty applies instead of a rate created under the UK’s general tariff powers, subject to the specific exceptions in the regulations. The table is therefore the document that links the commodity code to the higher charge.
What the standard rate overrides
| Route | Normal treatment | Excepted goods |
|---|---|---|
| Preferential trade agreement | Reduced preferential rate | Standard rate |
| Developing Countries Trading Scheme | Scheme preference | Standard rate |
| British Overseas Territories | 0% tariff-free access | Standard rate |
| Ukraine agreement | Preferential rate | Preference retained |
The same treatment reaches preferential imports. The regulations apply the standard rate instead of a preferential duty or preferential quota rate for excepted goods, according to the explanatory note1. That means a steel shipment that would ordinarily qualify for a reduced rate under a free trade arrangement can still face the new charge if its commodity code appears in the table.
One important exception is steel that qualifies as originating in Ukraine under the UK-Ukraine Political, Free Trade and Strategic Partnership Agreement. Those goods retain the agreement’s preferential treatment, provided they meet its rules of origin3. Origin is consequently a central part of the customs decision, alongside classification, quota availability and the value used to calculate duty.
The change also reaches the Developing Countries Trading Scheme. Excepted goods imported under that scheme are charged at the standard rate rather than the rate that would otherwise apply1. This removes a preference that might otherwise have softened the effect of the quota and makes the commodity-code check necessary even where the shipment comes from an eligible developing country.
The rules also cover goods entering under tariff-free access arrangements for British Overseas Territories. Excepted goods lose the 0% rate and instead take the standard rate of import duty1. The broad reach matters because the new charge is not confined to one trade route or one type of supplier.
Contracts receive a short exemption
A temporary arrangement protects some goods tied to earlier commercial commitments. Relevant goods covered by a contract entered into on or before 13 March 2026 can avoid the new tariff when imported by 30 September 2026, according to the regulations’ explanatory note1. The implementation notice describes the same cut-off as contracts made before 14 March 2026.
Contract exemption window
The exemption applies to imports made between 1 July and 30 September 2026. It can also cover steel released from a UK customs warehouse during that period if the original import satisfied the qualifying contract obligation4. The arrangement is therefore relevant to goods already ordered but not yet cleared, as well as goods moving through storage.
Goods using the transitional exemption will not count towards the first quarter’s quota allocation4. That gives qualifying shipments a route around both the 50% duty and the first-quarter quota, but only for a limited period. The protection is tied to the contract and import dates, not simply to the fact that the steel was ordered before the new regime began.
Evidence must be provided to prove eligibility, and HMRC has said it will take enforcement action in cases of non-compliance or deliberate fraud3. The distinction between an eligible pre-existing obligation and a later purchase is consequently important. Customs records, contracts and shipment timing become part of the tariff treatment rather than background commercial paperwork.
The temporary window is short enough to affect shipment planning. Steel that misses the September deadline can fall back into the ordinary quota and out-of-quota system even when the underlying contract was made before the policy announcement. The exemption reduces the immediate shock for some existing orders, but it does not remove the new regime from future purchasing decisions.
Processing and Northern Ireland
The charge also follows steel through special customs procedures. Steel covered by the measure can enter inward processing or a freeport with import duties suspended, but duty is calculated on the steel as declared into the procedure when it is later released into UK free circulation4. Processing it into another product cannot be used to replace the steel with a lower-duty basis.
Steel through a customs procedure
Direct exports from the UK after processing remain free of import duty, provided the goods are not re-imported into the UK within 12 months4. Goods placed in storage and then released to free circulation are subject to the new measure. The practical effect is to preserve suspension for qualifying trade flows while preventing processing or storage from bypassing the tariff on goods sold into the UK.
Northern Ireland has a separate concern because EU steel safeguards apply to some steel from countries outside the UK and EU. The UK measure is intended to allow Northern Ireland importers to continue accessing relevant UK treatment without being exposed to prohibitive EU out-of-quota safeguard duties, while EU-origin steel is outside the measure described in the guidance5. The issue arises from the different tariff systems operating across the UK and the island of Ireland.
For affected non-UK and non-EU steel, access to UK safeguard quotas or equivalent in-quota treatment depends on a relevant EU tariff-rate quota being available5. The arrangement can avoid the EU’s 25% out-of-quota safeguard charge where quota capacity exists. It adds another layer to the customs declaration because origin, quota availability and the movement route all influence the final duty.
The Northern Ireland material also anticipates additional information for each movement into the region5. That information is intended to support claims for the relevant treatment. The result is a regime in which the UK steel measure cannot be assessed only by looking at the UK commodity code; the destination and the relationship with EU safeguards can change the customs calculation.
The policy behind the tariff
The government announced the new measure on 19 March 2026 to preserve steel production needed for critical national infrastructure and defence4. Its policy paper links the action to persistent global overcapacity and says the wider steel strategy is intended to protect domestic capability. The measure is therefore both a customs change and an industrial policy instrument.
The case set out in the policy paper
The same paper says global steel capacity is expected to exceed demand by 721m tonnes by 2027, equal to 13% more than current production capacity in Organisation for Economic Co-operation and Development countries3. It also says UK crude steel production has fallen by more than 50% over the past decade. Those figures provide the stated reason for replacing the safeguards with a sharper quota-and-tariff structure.
The 50% rate is designed to make imports above the protected volume significantly more expensive. That may support domestic producers when alternative supply is available, but it also raises input costs for UK businesses that need steel products not immediately available from domestic mills. The commercial effect will differ by product line, origin, quota availability and the ability to pass the charge through the supply chain.
The policy note says the UK has worked with the European Union because supply chains are closely connected3. That connection is particularly important for Northern Ireland and for goods moving through Great Britain before reaching other markets. The tariff change therefore sits alongside arrangements intended to prevent the UK and EU safeguard systems from producing conflicting charges.
The updated tariff gives effect to the new structure across several legal preference regimes at once. The Ukraine exception preserves one preferential channel, while the contract exemption protects certain older commitments until the end of September. For other specified steel goods, the central commercial test from July will be whether the shipment fits inside the available quota.
The first quarter will show how quickly the new allocations are taken up. HMRC’s 90% critical threshold can require full-duty security before a quota is exhausted, while rollover applies only within the quota year4. That combination leaves importers facing a 50% tariff above the quota and a narrow window in which an available allocation can determine whether steel enters the UK at the ordinary rate or at the new charge.
Sources
- ↩ The Customs (Tariff and Miscellaneous Amendments) (No. 4) Regulations 2026 (Explanatory Note) https://www.legislation.gov.uk/uksi/2026/572/made
- ↩ UK Steel Trade Measure from 1 July 2026 https://www.trade-tariff.service.gov.uk/news/stories/uks-steel-trade-measure-from-1-july-2026–30-june-2026
- ↩ UK steel trade measure from 1 July 2026 https://www.gov.uk/government/publications/uks-steel-trade-measure-from-1-july-2026/uks-steel-trade-measure-from-1-july-2026
- ↩ Implementation notifications on the UK steel trade measure https://www.gov.uk/government/publications/uks-steel-trade-measure-from-1-july-2026/implementation-notifications-on-the-transitional-exemption-quota-administration-and-the-ukraine-exclusion
- ↩ Northern Ireland Steel Import Duty https://www.gov.uk/government/publications/northern-ireland-steel-import-duty/northern-ireland-steel-import-duty