Updated September 3, 2026. Quick answer: Teachers’ and State Employees’ Retirement System of North Carolina (TSERS): the COLA is discretionary (the General Assembly must act), service credit can be purchased, and no DROP was found. Vesting takes five years of membership service.
Provisional. This page is published at medium confidence. The specific points that could not be confirmed are listed under What could not be verified below, and are named rather than smoothed over.
The verdicts
| Is the COLA granted? | Discretionary (General Assembly) |
|---|---|
| Is the COLA compounded? | Not stated |
| Vesting | 5 years of membership service |
| Buy service credit? | Yes |
| DROP? | None found |
| State | North Carolina |
Those first two rows are separate questions and are routinely confused. Whether you get an increase at all is one thing; whether it compounds is another. A system can grant an increase automatically every year and still compute it against your original benefit forever, which is a materially worse deal than it sounds.
The COLA
TSERS increases are not automatic: “It is up to the General Assembly to decide whether to increase benefits for TSERS and whether to appropriate funds to support that goal.” No increase or supplement was granted in 2024 or 2025 per the state retirement system’s own COLA page. Whether the adjustment compounds on the prior balance or resets against an original base is not stated in the materials reviewed.
Buying service credit
TSERS lets members purchase a long list of service types: military, withdrawn service, out-of-state and federal government service, temporary local/state service, educational leave, omitted service, charter school service, workers’ compensation leave, part-time service, extended illness leave and more. No single flat-rate formula for military-service cost was found in the materials reviewed; instead, “State law specifies how the cost of each type of creditable service that may be purchased is calculated.” Cost varies by category and is spelled out on the individual purchase form for each type: “Each purchase form includes a description of the cost calculation method used for that individual type of purchase.”
Run your own numbers before deciding: some purchases never recover their cost, and the calculator shows which.
Coordinate this with your overall retirement plan
An adviser can help weigh a COLA that may not compound, a service-credit purchase that may never pay for itself, or a DROP election against the rest of your retirement plan, but that does not replace the numbers in your own member statement.
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Vesting
“You become vested in TSERS once you have completed a minimum of five years of membership service.” A vested member who leaves before retirement age can defer: “You may be entitled to receive a deferred benefit at a later date once you meet eligibility requirements after you have completed five years of creditable service, provided you do not withdraw your contributions.”
DROP
No DROP program appears in the TSERS handbook pages reviewed. Only a standard vested deferred benefit was found, which defers commencement of an already-earned benefit rather than letting a member accrue a separate account while still working: a different mechanism than a DROP.
DROP is rarer than it appears across the systems on this site: most have none.
What could not be verified
REFUND TERMS: this page does not state what happens to your contributions if you take a refund instead of leaving your account with the system: that comparison was not independently researched for this system this session, and is left as an open gap rather than guessed from another system’s rule. Consult your own plan’s refund/forfeiture terms before deciding. Any additional field marked “not stated” in the verdicts table above was genuinely absent from the official materials read, not omitted for space.
Sources
- NC TSERS system page
- NC Retirement COLA page
- TSERS handbook, qualifying for benefits
- NC Retirement, purchasing service
Read September 3, 2026.
Related public pension systems: Virginia VRS · Massachusetts MTRS.
General information drawn from each system’s own official published materials, not legal, tax or financial advice. Vesting, COLA and buyback rules are set by state statute and plan tier, differ materially by hire date, and can change by future legislation. This page cannot see your own member statement, which governs. We are not a law firm, a tax adviser, or a fiduciary, and this is not personalized advice.