Originally Posted by
Steve in Olympia
I have a Household Account with BA, and also an account with Iberia. I regularly use the "Combine my Avios" function on avios.com, and I have never been asked to submit any documents, or do anything else by mail.
The OP wants to transfer some of his avios to his wife's account. This can be done with an Avios.com household account and paperwork.