This order establishes the specific indexation adjustments for income tax thresholds as mandated by the Income and Corporation Taxes Act 1988. The document serves as a formal legislative instrument issued by the British government to adjust tax allowances in accordance with inflation metrics. It provides the legal framework necessary for the implementation of updated financial figures for the 1990 fiscal period.

This document is a technical legislative instrument intended for legal professionals, tax practitioners, and government administrators. Experts categorize this as a primary source document for historical tax compliance and regulatory record-keeping.