You are not required to make this type of payment. You can use this web site to estimate the amount of a deposit . You will receive retirement credit for all of this service whether or not you pay the deposit. However, unless you pay the deposit in full, your annual benefit will be reduced by 10 percent of the deposit amount due at retirement. Also, any annuity due your surviving spouse will be reduced proportionately.
Interest is charged from the midpoint of periods of service through the date of the bill.
If full payment is received within 30 days after the bill is issued, no additional interest is charged. Otherwise, interest will be computed after each payment at the rate of 3 percent for the interval since the most recent payment you have made. After each payment we will send you an updated account statement. You can use this web site to estimate the amount of a deposit . Unless you pay the deposit in full, you will not receive credit for the service in your annuity.