Under the law of Northern Ireland, a marriage of a same sex couple under the law of England and Wales is to be treated as a civil partnership formed under the law of England and Wales (and accordingly, the spouses are to be treated as civil partners).

Sub-paragraph (1) does not apply on or after 13th January 2020 except for the purposes of proceedings commenced before that date under Chapter 2 of Part 4, or section 191, of the Civil Partnership Act 2004 (dissolution, nullity and other proceedings in Northern Ireland in respect of civil partnerships, and property disputes between civil partners).