Idaho · Free tool
Idaho PERSI Retirement Calculator
The Idaho Public Employee Retirement System (PERSI) calculates a pension as 2.0% multiplied by your average monthly salary multiplied by your years of service. Enter your numbers below for an estimate.
Enter your numbers. The percentage is pre-filled with the 2.0% PERSI multiplier; adjust it for your tier or service level.
PERSI uses a 2.0% multiplier on your average monthly salary (the average of your highest 42 consecutive months). Early retirement before your normal retirement age reduces the benefit. Confirm with Idaho PERSI.
Your estimated Idaho PERSI pension
Updates as you type.
Educational estimate only, not financial advice. Uses a simplified Idaho PERSI formula and your inputs; your real benefit varies by tier, service, age, and salary rules.
How the Idaho PERSI formula works
PERSI uses about a 2% multiplier on your average monthly salary, the average of your highest 42 consecutive months, multiplied by your months of service. The Rule of 90, when your age plus service totals 90, allows unreduced retirement; otherwise reductions apply before age 65.
This calculator uses a single percentage and a simplified formula, so treat the result as an estimate and confirm your figure with PERSI. Idaho teachers also pay into Social Security. Use the full Teacher Retirement Calculator to combine your pension with your 403(b)/457(b) and Social Security, or read what the WEP and GPO repeal means for teachers.
Questions
How is a Idaho PERSI pension calculated?
The PERSI benefit multiplies a 2.0% multiplier by your average monthly salary by your years of service. For example, 30 years at a $55,000 average monthly salary is 2.0% × $55,000 × 30 = $33,000 per year before any early-retirement reduction.
What multiplier does Idaho PERSI use?
It is 2.0% per year of service. Adjust the percentage on the calculator if your tier or service level uses a different rate.
Do Idaho teachers get Social Security?
Yes. Idaho teachers pay into Social Security, so most receive a PERSI benefit plus a Social Security benefit. Adding any 403(b) or 457(b) savings completes the picture.