Ohio STRS Calculator: How to Use It
STRS Ohio has multiple retirement paths and a FAS window that changes at 25 years. The formula is 2.2% per year, but the inputs determine everything.
What this calculator does
The Ohio STRS Calculator applies the official 2.2% per year formula to your service years and final average salary, using the correct FAS window for your service length. It checks three eligibility paths: age 60 with 5 years for a full benefit, age 55 with 25 years for a full benefit, and age 65 with any service. If you're between 55 and 59 with fewer than 25 years, it calculates the 4%-per-year early reduction.
Results include the 20-year and 30-year lifetime payout projections using an assumed ~1.5% non-compounding COLA (based on recent board decisions) with a 5-year wait before the first adjustment, so you can see the real income difference between retiring at 55 versus waiting to 60.
What each input means
Current age
Your age today. Used to project total service at your planned retirement date and determine which eligibility threshold applies at that age.
Years of STRS service
Your credited service with STRS Ohio. This drives both the benefit calculation and the FAS window. At fewer than 25 years, STRS uses your best 5 consecutive years. At 25 or more years, it switches to your best 3 consecutive years. The label on the salary field changes automatically based on what you enter here.
Final average salary
Enter the average of either your 3 or 5 highest consecutive years depending on your service length. For most teachers approaching retirement, this is the salary average of your final 3 or 5 years. If you recently received a significant raise, your FAS may be pulled up by that higher pay. Check your STRS benefit statement or payroll records for actual figures.
Planned retirement age
The age at which you'd like to retire. STRS Ohio's earliest retirement with any benefit is 55 with 5 or more years of service. Retiring before 60 without 25 years triggers the early reduction. The calculator shows exactly what that costs at each age.
Understanding the outputs
The eligibility banner is the first thing to check. Green means you'd qualify for an unreduced benefit at your planned retirement age. Yellow means a reduced benefit applies. The reduction amount is shown in the monthly benefit label.
The 100% cap matters for long-serving teachers. The 2.2% formula hits the cap at roughly 45 years of service. If the calculator shows a capped benefit, it means additional years of service won't increase your pension.
COLA projections use an assumed ~1.5% non-compounding rate based on recent board decisions. The COLA is not guaranteed and does not begin until your 5th anniversary of retirement. Each year's increase is calculated off your original retirement benefit, not the previous year's adjusted amount. The board sets the rate annually at its discretion, so actual adjustments may vary from the projection.
The 55-with-25 vs waiting-to-60 decision
This is the most common planning question for STRS Ohio members. Retiring at 55 with 25 years is unreduced, but you're leaving 5 years of additional service credit off the table. Those 5 years at 2.2% on a $75,000 FAS add $8,250 per year to your pension. Whether the extra 5 years of retirement income you receive between 55 and 60 offsets that lifetime increase is a break-even calculation that depends on your specific numbers and health expectations.
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Frequently asked questions
When does STRS Ohio switch from a 5-year to a 3-year FAS window?
At 25 years of service. Below 25 years, STRS averages your best 5 consecutive years. At 25 or more, it uses your best 3 consecutive years. The calculator adjusts automatically.
What is the early retirement reduction for ages 55-59?
4% per year under age 60. Retiring at 57 means a 12% permanent reduction; at 55, a 20% reduction. This goes away once you qualify for an unreduced path.
Is there a benefit cap?
Yes. The pension is capped at 100% of your final average salary. At 2.2% per year, you reach the cap at roughly 45 years of service. The calculator flags this and applies the cap automatically.
How does the STRS Ohio COLA work?
The COLA is not guaranteed. The board sets the rate each year at its discretion; recent decisions have been ~1.5% non-compounding. It doesn't start until your 5th anniversary of retirement. Each year's increase applies to your original benefit, not to the previously adjusted amount.
Do Ohio teachers get Social Security?
Most do not for their teaching work. If you have other Social Security-covered employment, the Fairness Act (January 2025) repealed WEP and GPO. Contact SSA for how this affects your benefit.