UK public sector net investment share of GDP
UK public sector net investment share of GDP stood at 0.2% in Aug 2026, according to Office for National Statistics (ONS). It is one of the indicators in the Public sector finances table (Value · Monthly), with a complete series running from Apr 1997 to Aug 2026. The complete series with an interactive chart, free to download.
This indicator in the Public sector finances table
| Indicator | 08-2026 | 07-2026 | 06-2026 | 05-2026 | 04-2026 | 03-2026 | 02-2026 | 01-2026 | 12-2025 | 11-2025 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Borrowing and debt | |||||||||||
| Net investment, share of GDP | 0.2 | 0.1 | 0.1 | 0.1 | 0.2 | 0.6 | 0.3 | 0.3 | 0.2 | 0.2 | |
| Debt interest paid (public sector) | 11,215 | 10,471 | 14,246 | 14,115 | 12,179 | 5,584 | 15,330 | 3,880 | 11,502 | 5,705 |
Understanding UK public sector net investment share of GDP
This indicator scales the net capital formation and infrastructure outlays of the United Kingdom public sector, excluding rescued banks, against total national economic output. It relates capital expenditures—such as transport networks, public buildings and equipment acquisitions—to gross domestic product, providing a normalised measure of government capital formation. It differs from debt-to-GDP ratios by measuring the flow of resources dedicated to expanding the public capital stock rather than the total accumulated stock of liabilities.
Interpreting this share requires recognising that capital expenditure is often concentrated in specific periods, leading to volatile monthly patterns when compared with smooth GDP denominators. Revisions to quarterly economic output figures can alter the ratio after initial publication. Analysts should view this metric alongside current spending shares to assess the composition of public finances. Long-term comparisons help identify shifts in government capital allocation relative to the size of the economy.
Frequently asked questions
- What does the net investment share of GDP measure?
- The proportion of national economic output devoted to net public capital formation and infrastructure.
- Why can this monthly ratio be volatile?
- Capital outlays often occur in irregular lumps, while GDP is smoothed across quarters.
- Does this metric include local authority capital spending?
- Yes, it covers consolidated capital investment across central and local government.