Updates: Multinational Top-up Tax and Domestic Top-up Tax
2026
Miscellaneous pages: Accounting terms: Consolidated financial statements
Clarification of the language relating to application of the deemed consolidation test in section 249(1)(d) and section 249(2).
Scope: Excluded entities: Overview
The language under "Entities excluded when they are the ultimate parent" and the following example were made more precise, to prevent misinterpretation of the effect of section 249(2).
Scope: Determining ownership of entities: Ownership interests and controlling interests
Updated for change in FA26 in relation to a main entity not having an ownership interest in a permanent establishment.
Calculating the effective tax rate: Covered tax balance: Post-filing adjustment of covered taxes
Guidance updates to clarify application of s217.
Calculating the effective tax rate: Covered tax balance: Covered taxes
Added detail of the FA26 changes to the DTT treatment of group relief payments
Administration: The information return: Making elections
Added details of the transitional extension to the deadline for elections introduced by Finance Act 2026
2025
Multinational Top-up Tax and Domestic Top-up Tax
MTT manual published