Period-specific information: Year-ended March 2025

Scope of regional gross domestic product Region by industry estimates for March years 2000-2024 Regional GDP industry estimates for 2000 to 2024 are based on balanced national industry data from National accounts (industry production and investment): Year ended March 2024. The industry data for this period has been “balanced” using the national accounting supply-use framework. For most industries, unit-level financial data has been utilised to aggregate to a national total (known as the “bottom-up” approach). For regional GDP, these same sources are used and matched to geographic information also available at unit-level, allowing us to allocate national industry GDP figures to regions. The use of firm-level data to apply “bottom-up” methods follows international best-practice and provides the strongest source of regional data for most industries. For more information, see Regional gross domestic product: General information. For DD111 (electricity generation and retailing), in 2024 there was a significant growth in renewable energy projects built as joint ventures, which presents challenges with regional allocation. We are reviewing our methods to ensure we are reflecting the appropriate regional allocation of these projects. Provisional estimates for the year The unit-level data sources noted above that are used to compile the national and regional industry estimates are not available for the provisional year (ended March 2025). We therefore use other data sources that provide a regional dimension to derive industry provisional estimates that are aggregated into regional-level GDP totals. We do not regard these figures as being of the same quality as the pre-2025 balanced years, therefore we provide provisional estimates only for the region totals. The statistical discrepancy is the difference between the total GDP from the national accounts (income, savings, assets, and liabilities (SAIL) and regional GDP. The differences may be attributed to methodology or unallocated items between the various measures of GDP. Data updates We incorporated improvements and updates to national industry totals published in November 2025. These changes affect the national totals that are allocated to regions. See the 2025 preview of national accounts improvements for more information. We updated regional allocation proportions with new input data, which includes updated annual enterprise survey data and LEED. These updates affect the proportional allocation to regions. This release also reflects the effects of changes to the business register and population estimates. We aligned the meshblock pattern and geographies from 2007 with 2023 Census geographic patterns. We also incorporated changes to the subnational population estimates from 2019 to 2024. en-NZ