Then, between the ages of 66 and 70, you would earn delayed retirement credits which would increase the ultimate benefit amount when you collect at age 70. (elderlawanswers.com)
If you choose your spousal benefit, you can continue building up delayed retirement credits for your own benefit. (elderlawanswers.com)
Hold out past your full retirement age, and you'll receive delayed retirement credits of 8 percent per year until age 70, when your monthly benefit stops increasing. (cnbc.com)