LONDON : The United Kingdom government is actively examining plans to bring forward its target to spend 3 per cent of national output on defence to the 2029–30 financial year, a significant shift from earlier plans that had envisioned reaching this level in the next parliamentary term after the general election expected in 2029. The review of the timetable is part of ongoing discussions within Downing Street and Treasury circles as global security dynamics and defence costs evolve.
Background and Existing Commitments
Under current government policy, Prime Minister Keir Starmer pledged in February 2025 to raise defence expenditure to 2.5 per cent of GDP by 2027, up from roughly 2.3 per cent in 2024. In parliamentary statements at the time, he also set an aspiration for defence spending to reach 3 per cent of GDP in the following parliamentary term.
Government advisers are now evaluating options to tighten that timeline, with officials studying proposals to achieve the 3 per cent threshold by 2029. As of now, no formal decision has been taken and officials emphasise discussions remain preliminary.
Rationale and Strategic Context
The move to potentially accelerate spending growth is linked to strategic security concerns in Europe, including Russia’s ongoing invasion of Ukraine and broader geopolitical uncertainty. At recent international forums such as the Munich Security Conference, Prime Minister Starmer highlighted the need for faster increases in defence investment to strengthen UK capability and cooperation with like-minded countries.
Defence policy discussions also occur against the backdrop of broader NATO commitments: following the 2025 NATO summit, allied states agreed to aim for 5 per cent of GDP on combined defence and security spending by 2035, with periodic progress reviews — placing additional emphasis on credible spending paths among major member states.
Projected Budget Figures and Estimates
Reaching a 3 per cent defence spending level by 2029 would represent a substantial fiscal increase relative to current levels.
Current baseline: In 2024, the UK’s defence expenditure was about 2.3 per cent of GDP — roughly £66 billion annually, according to NATO reporting.
Office for Budget Responsibility (OBR) estimate: Independent projections suggest that achieving the 3 per cent target in the 2029–30 fiscal year could require an additional £17.3 billion per year compared with current plans.
Institute for Fiscal Studies (IFS) view: Other analytical estimates place the extra annual cost at £13 billion to £14 billion annually once previously scheduled spending increases are factored into the baseline.
These figures encompass additional core defence spending as defined under the NATO measurement framework, which includes a broader range of expenditures than the Ministry of Defence’s departmental budget alone.
Fiscal and Policy Considerations
Government planning for accelerated spending has highlighted significant fiscal implications, requiring careful evaluation of public finances. Treasury officials are reported to be cautious about committing to large increases given existing pressures on borrowing, debt targets, and competing demands on public services.
Achieving the faster target without relying excessively on debt could necessitate structural budget adjustments, including possible reallocations from other programmes or changes in tax policy, though specifics have not been set out. Discussion has also occurred around alternative delivery mechanisms such as public-private partnerships to support defence procurement and infrastructure spending.
Next Steps and Government Planning
The UK government has yet to publish a definitive long-term Defence Investment Plan outlining how new funding would be allocated across capabilities, procurement programmes, and force modernisation. Delays in the investment plan have drawn criticism from industry stakeholders seeking clearer signalling on future orders and sovereign capability development.
Officials say that updated projections and scenarios will continue to be analysed, with budgetary implications assessed in the context of wider fiscal planning horizons, including the Office for Budget Responsibility’s forthcoming economic forecasts.
——— End of Article ———
