It takes 30 days for a spouse to be covered by NHIF from the day she was added. You will see the message ‘Spouse not entitled until…’ (date after 30 days of adding). For instance, if you add your spouse on 1st January, she will start being covered from 30th January.
To add a spouse, you need to present a copy of your marriage certificate or affidavit and copies of your ID (wife and husband) to Huduma Center NHIF desk.
You can get an affidavit from any advocate and commissioner for oaths (for about Ksh. 1,000 to 2,000) or court of law (for about ksh. 50 to 200).