Convert a civil partnership into marriage

You can convert your civil partnership into marriage at any registration office in Lincolnshire.

Currently, only same-sex couples in a civil partnership may convert their relationship into a marriage. You cannot convert an opposite-sex civil partnership to a marriage in England and Wales. 

The process converts one legal relationship (civil partnership) into another (marriage).

Once the civil partnership is converted into a marriage, the civil partnership ends and the couple is treated as having been married since the date the civil partnership was formed. 

You are not required to give notice, provide witnesses, or recite statutory words as part of the conversion process.

The conversion process can be completed in one of two ways:

  1. The completion and signing of a declaration at one of our registry offices
  2. The Completion of a declaration at one of our registry offices, followed by a ceremony where you will sign the declaration, allowing you to celebrate with family and friends


You must both attend an appointment together and produce the following documents for the completion of the declaration:

  • your original civil partnership certificate, and
  • proof of identity for each of you; this can be a current valid passport or United Kingdom (UK) driving licence with a photograph, and
  • proof of your address in one of the following forms:
    • a utility bill dated within three months of your appointment
    • bank or building society statement dated within one month of your appointment
    • council tax bill dated within one year of your appointment
    • valid UK driving licence

Provide all of the required documents to complete your conversion.