'When a big contract goes overseas, these changes will ensure 100% of the value creates new opportunities for workers and businesses here at home,' Chancellor John Healey said as ministers launched the policy at BAE Systems' Scotstoun yard in Glasgow. That was the political pitch. The practical change, set out by the Treasury and Ministry of Defence on 30 October, is that overseas firms winning major UK defence contracts will be expected to put value back into Britain through jobs, apprenticeships, factory investment, supplier spending and technology transfer.

For contracts worth more than £50 million, ministers say the benefit returned to the UK could be measured up to the full value of the deal. In plain terms, if a £100 million order goes abroad, Whitehall wants as much as £100 million in British economic benefit coming back the other way. The government is presenting that as part of its wider 'Back British' approach in the Budget. Officials say British suppliers will still be prioritised wherever possible, but where specialist equipment has to be bought from overseas, this policy is meant to stop the economic gain disappearing overseas as well.

For Scotland, and for defence communities across the North and other manufacturing regions, that is the bit that matters. The government says Scotland's defence economy is worth £2.5 billion and directly supports 12,200 jobs. It also points to the recent £10 billion Norway export deal for Type 26 frigates, supporting 2,000 local jobs, and a £453 million Typhoon radar contract backing 300 roles in Edinburgh. That is why a Glasgow launch was more than ceremony. From yards on the Clyde to specialist engineering firms further south, defence spending still shapes whether skilled work stays local, whether apprentices are taken on, and whether firms have the confidence to expand.

The argument for a tougher approach is easy enough to see in the Ministry of Defence's own figures. Since 2016, more than £35.2 billion has been spent on defence contracts and services with industry overseas, representing 11 per cent of total MOD direct expenditure with industry and commerce between 2016/17 and 2025/26. Under the new rules, companies landing qualifying contracts will be allowed to meet their commitments in several ways. According to the government release, that can include creating British jobs and apprenticeships, opening or expanding UK factories, investing in domestic suppliers, using more UK-made components, or transferring technology and know-how into British firms. A new central Offset Authority will be set up to agree, value and monitor those commitments through dedicated offset agreements.

There is already a substantial domestic base. The Treasury and MOD say 85 per cent of MOD expenditure already goes to UK firms, and that last year defence investment supported 274,000 jobs in UK industry, up 10 per cent on the year before. The same release says £34.1 billion went to businesses based in the UK. Set against that, ministers are pushing defence more openly as industrial policy as well as security policy. The government has set a target of spending 3 per cent of GDP on defence in 2030, on the path to a NATO commitment of 3.5 per cent in 2035. It says a fully funded £298 billion Defence Investment Plan over the next four years will strengthen front-line capability while supporting jobs, businesses and growth across Britain.

There is more money being lined up around the edges too. In the Budget this week, the Chancellor confirmed a new commitment for the National Wealth Fund and British Business Bank to deploy up to £5 billion over four years into defence, dual-use industries and other sectors linked to national security. The government has also begun treaty negotiations with the Netherlands, Poland and Finland on a Multilateral Defence Mechanism designed to procure at scale and stockpile essential equipment. Still, regions that build things for a living will want more than a polished announcement. Offset rules can look impressive on paper, but the hard part is delivery: how benefits are valued, how firmly ministers negotiate, and whether smaller British suppliers are genuinely helped into global supply chains rather than simply mentioned in ministerial lines.

Defence Secretary Wes Streeting's message was direct: 'Every pound we invest in defence should be judged by what it does for Britain.' Workers in shipbuilding, aerospace and advanced manufacturing will have little trouble with that test. What they will want to see is whether the policy turns into orders, training places and long-term work on the shop floor. The Offset Policy has been published today and, according to the government, will apply to a select number of procurements from April 2027, with suppliers told early where the requirement will apply. For Glasgow, for Scotland and for manufacturing towns well beyond Westminster, the question now is simple enough: when the next big contract goes overseas, will the promised jobs, skills and investment actually come home?