K.F.
Since your husband is so smart, it may be his best interest to start his own business. He has already missed tax season which would have given you guys extra income and exposure to others that may require more services.
If he can't find a "job", he just like many others may need to create his own opportunities. Times are changing and we need to change with them. He may want to connect with small businesses and provide assistance to them or try getting hired with an accounting temp company. Unfortunately, having a BS degree in Accounting doesn't hold the same weight as having a CPA which you would need to work for a firm in accounting to acquire along with taking the exam.
If he is any good at information management and the computer side of the accounting equation perhaps he can develop accounting software or figure out how to improve an already existing system.
Long story short, he needs to be encouraged to think outside the box because the ordinary box has shrunk to almost nonexistent.