When a deed poll is the better choice
Want to keep your own family name as well as taking your wife’s? HM Passport Office treats adding a forename as a change of name, so your marriage certificate won’t cover moving your surname into the middle, but one deed poll does the whole thing. Our guide to keeping a previous surname as a middle name works the same way for husbands.
Blended names, such as merging both surnames into one word, need a deed poll for each of you. Our guide to combining surnames has examples.
If an organisation questions your marriage certificate, point it to the Passport Office’s guidance. If it still won’t budge, a deed poll states your old and new names in full and settles it.