On the first of July, the rules on bringing steel into Britain changed. You probably didn’t notice, and that’s reasonable — you don’t import steel. You buy it from a merchant, a fabricator, or a steel stockholder — the wholesaler that imports in bulk and sells it on in smaller lots — and what happens at the ports feels like somebody else’s problem. It was, two weeks ago. It won’t stay that way.
What actually changed
Until the end of June, imported steel came in under an arrangement called a safeguard. In plain terms: a set tonnage of each type of steel was allowed into the country each quarter with no extra tax, and anything above that line paid a 25 per cent tariff — a tariff being nothing more mysterious than a tax charged on goods as they cross the border.
From 1 July, the government replaced it with something considerably sharper. The tariff-free allowance — the quota — has been cut roughly in half, and anything arriving above it now pays 50 per cent instead of 25. The quotas run quarter by quarter, and importers claim them on a first come, first served basis. When a quarter’s allowance for a product runs out, every further tonne of it pays half its value in tax at the dock.
The list of products covered reads like a materials order. Reinforcing bar — the ribbed rods cast into concrete, which everyone on site calls rebar. Hollow sections — the square and rectangular tubes that frames, gates and balustrades are welded from. Angles and sections, wire rod, coated sheet, welded tube. Twenty categories in all, chosen precisely because they’re the products Britain can still make itself. That’s the point of the policy: UK steel production has more than halved in a decade, and industry figures put imports at roughly two-thirds of what the country now uses. The government wants that reversed, and this is the lever it has pulled.
Whether prices jump, and by how much, nobody honestly knows yet. The quotas may prove big enough. But the uncertainty is itself the problem, because supply chains don’t wait to find out.
Why it lands on your fixed price
You will never pay this tariff directly. The importer pays it — the stockholder, the merchant, the fabricator buying plate and section from abroad — and they respond the way anyone would. When you don’t know whether your next consignment lands inside the quota at nought per cent or outside it at fifty, you stop giving customers prices that stand still. Expect quote validities to shorten. Expect rates to move between enquiry and order.
Now look at the other side of your business. The prices you give — to housebuilders, to main contractors, to commercial clients — are mostly fixed. Tender in February, start on site in September, buy the steel in October. Under the new rules, October sits in a different quota quarter, priced under a regime that didn’t exist when you signed. Standard building contracts do contain a mechanism for this — a fluctuations clause, a provision that lets genuine changes in material costs be passed on to the client — but in the contracts I see, it’s usually struck out before signature, if it was ever there at all. So the gap between the day you price steel and the day you buy it sits entirely with you.
The question worth asking this week
Here it is: which of your live fixed-price jobs contain steel you haven’t bought yet — and what did you allow for it?
In most firms I audit, assembling that answer would take the best part of a week. The allowance is a line in the estimator’s spreadsheet. The supplier quote it was built on is an email, or a price scribbled on the back of an enquiry after a phone call. The orders actually placed live in the accounts system, keyed in weeks after the event. Nothing joins any of it up. The firm is carrying the risk either way — the only question is whether anyone can see the size of it.
There’s a detail in the new rules that makes the paperwork point better than I could. Goods that were under contract before 14 March 2026 are exempt from the 50 per cent duty until the end of September — but only where the importer can produce evidence of that contract. The relief exists on paper; the paperwork earns it. That principle runs all the way down the supply chain, and it ends at your filing.
What a fix looks like
Modest, as usual. This is not an argument for a company-wide software platform, or a procurement module with approval chains your site teams will route around by Friday. It’s three small things. A commitment register: one live view listing every open job, the material allowances it was priced on, and the orders placed against each — so the unbought balance, which is your exposure, is a number on a screen rather than a feeling in your stomach. Quote expiry that enforces itself: your quotes already say “valid 30 days” at the bottom; the system that produced them should know the date and flag the lapse, so nobody honours March prices in July out of politeness. And dates on your rates: every price in the estimating library carries the day it was obtained, and stale ones show themselves before they go into a tender, not after the margin has gone.
None of that is a big build. All of it has to fit the way your estimator actually works — which is why you can’t buy it off a shelf.
Where this doesn’t apply
If steel is a rounding error in your work — decorating, plastering, domestic jobs where the steel is a couple of beams bought on the day — leave this alone; you have better things to fix first. If your contracts carry live fluctuations provisions and you actually operate them, you’re protected by paper and need only keep the records that feed it. And if you price and buy in the same week, the market moves for you and your client together, and the gap this piece is about barely exists.
It’s everyone in between — pricing months ahead, buying through others, fixed to the client — who has quietly become a steel speculator without meaning to. Two weeks into the new rules is a good moment to find out how big a position you’re holding. Get in touch.