Is this any help?
http://easysite.commonwealth.com/Ea...oads/FAQSocialSecurityRetirementBenefits2.pdf
q: What are spousal benefits?
A: While you are living, your spouse can receive a
dependent benefit of up to 50 percent of your full
retirement amount. Benefits paid to your spouse will
not decrease your retirement benefit
q: can i apply for spousal benefits if my spouse
hasn’t yet filed for social security?
A: No.
You cannot get spousal benefits until your
spouse has applied for social security retirement
benefits. You can apply for a benefit based on your
work record and, when your spouse retires, qualify for
a spousal benefit, if higher, at that time. Or, your spouse
can apply for benefits at his or her full retirement age and
then withdraw the application. This will allow you to
receive a spousal benefit.
My guess is spouse can change to 50% of yours after you start collecting.
This issue of when to take benefits has some gray areas when deciding.
If you collect the reduced benefit from 62 to 67 (5 years) and your benefit is $15,000 per year you are at that point $75,000 ahead.
At 67 the full benefit is 30% higher. So now you make an extra $4500 per year and it will take over 17 years to be ahead of the game. If the decreased value of the money (inflation) and possible interest on the early money is factored in it would likely add at least another year. You will be at least 84 before you are ahead of the game.
I started collecting at 62 as I feel that if I make it to 84, my desire to do some of the things we now enjoy will likely be diminished. Most people I know in that age group are not big spenders.
What seemed right for us may not be the best for others. I'm now 65 and am satisfied with our choice. Until I make it to beyond 84 I won't know how it looks from that end.
My philosophy for finances in retirement....If we stay healthy we'll do just fine....and if the health goes the money doesn't really help. (I do have medical insurance)
Loren