She can earn up to 4 credits per year. That means that your wife can earn one credit for each 1360$ of wages (as in 2019) or self-employment income.
Do you want to know more about the credits per year?
Yes, please.
So, as I said, is 1 credit for every 1360$ she earns so she'd get her fourth credit when she has earned 5440$ and that would complete her 4 credits per year.
how would it be for parents?
Are you the dependent parent?
No, I was just curious.
How many credits are needed to provide benefits for survivors?
That depends on the age of the workers the moment they die. But, no one needs more than 40 credits in 10 years of work to be eligible for any Social Security benefit.
Have any of your family members died recently?