I was born in 1950, my husband (born 1953) is on SSDI. Can I claim spousal retirement benefits now?
Yes, and if you could qualify for spousal benefits it would be in your best interest to file as soon as possible since you are already over your full retirement age of 66. Whether or not you could qualify for spousal benefits depends on the amount of your husband's SSDI (Social Security disability benefits), and on whether or not you are already drawing benefits on your own record and if so how much those benefits are in relation to your husband's SSDI rate.
You should probably contact Social Security to investigate your benefit options, but you may first want to consider using our maximization software to explore and compare your options in order to determine your best strategy for claiming benefits.