Posted: Sat Jan 21, 2023 7:00pm
AFAIK If your husband doesn't want residency then he will be subject to the same 90/180 day rules as any UK passport holder. His passport will be stamped, even if he is travelling with you.
He has the opportunity to apply for residency under easier terms than other UK passport holders by applying on the back of your successful application for residency as an EU citizen. You'll both need proof of health insurance but the financial requirements are a lot less than an application on his own.
Is there any reason why he would not want to join you and become a Spanish resident? Tax maybe? ....If you, as his wife, become tax resident and he spends a significant amount of time in Spain then the Spanish tax people may consider that his centre of economic activity is in Spain, even though he dosesn't spend more than 183 days in Spain. In which case he would become tax resident, even though he hasn't applied for residency.