PSERS Service Credit Purchase: Military, Out-of-State, and Leave Credit Before You Retire

Why Buying Service Credit Matters

Every year of credited service in PSERS directly increases your lifetime pension through the benefit formula: Final Average Salary × Multiplier × Years of Service. If you spent four years teaching in New Jersey before moving to Pennsylvania, or served three years in the military before entering education, those years currently count for nothing in your PSERS calculation. Purchasing that credit could add thousands of dollars per year to your pension for the rest of your life.

You must apply for eligible service credit and reach a purchase agreement while you are still an active PSERS member. After your active school service ends, you generally cannot start a new purchase. Payment deadlines and options depend on the agreement, and some purchase types allow payment after retirement.

What Types of Service Credit Can You Buy?

PSERS allows purchases for several categories of prior service, each with its own form and verification process.

Military service covers active-duty time in any branch of the U.S. armed forces. You can purchase up to five years of non-intervening military service credit using Form PSRS-28. "Non-intervening" means military service that did not occur during a period when you were also a PSERS member. You'll need your DD-214 or equivalent military discharge documentation to verify the service dates.

Out-of-state public school service applies if you taught or worked in a public school system in another U.S. state before coming to Pennsylvania. Form PSRS-278 handles this purchase, and PSERS will contact your former state's retirement system to verify employment dates and service credit.

Approved leaves of absence cover periods when you were on an unpaid leave from your Pennsylvania school employer — sabbaticals, family leave, or other board-approved absences. If you returned to the same employer after the leave, you may be eligible to purchase credit for that gap.

Other qualifying service can include certain federal government employment and part-time teaching service that didn't generate full PSERS credit.

How Much Does It Cost?

The cost of purchasing service credit depends on the type and amount of service and PSERS's calculation, which considers projected service, Final Average Salary, contributions, interest, and the value of the additional benefit. PSERS provides the exact cost after reviewing your purchase request; there is no single flat price per year.

PSERS lists the payment choices for an approved purchase in its Statement of Amount Due. Depending on the purchase, options may include payroll deductions, a lump sum, a rollover from an eligible conduit IRA, or an actuarial debt repaid from future retirement benefits. Check the statement for the payment deadline and terms.

The Deadline You Cannot Miss

This is the deadline that catches people: submit the purchase request, complete verification, and reach agreement while you are still an active PSERS member employed by a Pennsylvania public school. After your employment terminates, the window to start a new purchase closes. If PSERS has already approved your purchase, follow the payment terms in the Statement of Amount Due; some purchase types can be repaid from future benefits.

That means you cannot wait until after leaving PSERS-covered employment to begin this process. If you're planning to retire in June, have your purchase agreement in place before your last day. Given that verification of out-of-state service or military records can take weeks or months, starting 12 months before your planned retirement date is realistic. Starting six months out is cutting it close. Starting three months out is a gamble.

Does the Math Work in Your Favor?

Not every service credit purchase makes financial sense. The question is whether the additional monthly pension benefit justifies the upfront cost over your expected lifetime in retirement.

Request an official retirement estimate from PSERS (Form PSRS-151) both with and without the purchased service credit. Compare the two monthly benefit amounts. Multiply the difference by 12 months, then by the number of years you expect to collect a pension. If the cumulative additional benefit significantly exceeds the purchase cost, the math works.

For Class T-E and T-F members, purchasing service credit can also help you reach the Rule of 92 (age plus service years equals 92, with at least 35 years of service) sooner, potentially qualifying you for unreduced retirement earlier.

Steps to Start the Purchase

1. Log into the PSERS Member Self-Service (MSS) portal and review your Annual Statement of Account to confirm your current credited service years
2. Identify the specific service type you want to purchase and gather supporting documentation (DD-214, out-of-state employer verification letters, leave of absence records)
3. Submit the appropriate form — PSRS-28 for military service, PSRS-278 for out-of-state teaching
4. Wait for PSERS to verify the service and calculate the purchase cost
5. Review the payment choices and deadline in PSERS's Statement of Amount Due, then follow the terms of your purchase agreement
6. Request a new retirement estimate (Form PSRS-151) once the credit is applied to see the impact on your benefit

The Pennsylvania PSERS Retirement Guide includes a service credit audit worksheet that walks you through this evaluation step by step, along with the complete timeline for coordinating your purchase with your retirement application.

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