There is no requirement for a partnership return to include a declaration of the tax reference of a person (see section 12AA(6)(a)) if—
In subsection (1)(c) "relevant return" means a return under the International Tax Compliance Regulations 2015 (S.I. 2015/878).
If, in reliance on this section, the partnership return does not include a declaration of the tax reference of a person but the partnership does not comply with the requirement mentioned in subsection (1)(c), the partner required to make and deliver the partnership return, or that partner's successor, must give notice to HMRC specifying the tax reference.
The notice must be given within the period of 12 months beginning with the filing date for the partnership return.
The Commissioners for Her Majesty's Revenue and Customs may by regulations made by statutory instrument amend the definition of "relevant return" in subsection (2).
A statutory instrument containing regulations under subsection (5) is subject to annulment in pursuance of a resolution of the House of Commons.
In this section "filing date" has the same meaning as in section 12ABA.