This calculator has been created to assist employers in calculating contributions and estimating interest on prior year adjustments to member accounts. Please select the year(s) to be adjusted and enter the member's unreported earnings for each year. Note this calculator is only estimating interest costs. Actual interest amounts will be billed to the employer. Interest is calculated at a rate of 7.75% through June 1993, 7.5% for July 1993 through June 2000, 7.75% for July 2000 through December 2003, 8.00% for January 2004 through June 2012,
7.75% for July 2012 through June 2017 and 7.45% for July 2017 and after.