# Socioeconomic category change date

Dates when a household's socioeconomic category last changed (see Socioeconomic category change direction).

- API name: `socioeconomic_category_change_date`
- Category: Life event
- Type · unit: Date
- Individuals with a value: 207.5M (80.6%)
- Latest collection: Jun 1, 2026, refreshed every two months
- How values combine: Read from a single source field.
- Middle 50% of values: Mar 2024 to Apr 2026
- Derivations:
  - Modeled — the attribute is calculated using an algorithm that takes known records as input.

## Links

- [Catalog page](/catalog/v2/socioeconomic_category_change_date)
- [Published statistics (JSON)](https://static.faraday.ai/figv2/socioeconomic_category_change_date.json)
- [API reference](/docs/reference/getattribute)