Social Security Questions? Ask a Social Security Expert
Nine months of marriage at the time of death to qualify for survival spouse benefit. Also the spouse needs to be remarried before the age of 60.
"Qualifying widow(er)s must have been married to the deceased spouse for at least 9 months and have not remarried before the age of 60 (50 if disabled) (SSA 2007b)."
When you are still alive, she can collect on your retirement for spousal benefit after one year of marriage.
Please feel free to follow up.
Fiona Chen, MPA, Ph.D., CPA, ABV, CFF, CITP
p.s. Correction: The spouse needs to be unmarried, not remarried, before age 60.