Migration
SIC 2007 to UK SIC 2026 Migration
Use this page to understand how legacy SIC 2007 references relate to UK SIC 2026 pages.
Migration scope
Migration notes are used to help users compare old SIC 2007 references with the generated UK SIC 2026 hierarchy and page-level source notes.
How to verify a legacy code
Start with the old SIC 2007 code, then check the matching 2026 page, parent hierarchy, and any source-backed notes before using it for reporting.
Important limitation
A migration hint is not a filing decision. For registration, reporting, tax, or compliance work, verify the final code against official ONS or Companies House guidance.