Average Final Compensation—usually shortened to AFC—is one of the most important numbers in an NHRS pension calculation. It is also one of the easiest numbers to misunderstand. A teacher may look at the salary on a current contract, assume that amount will become the pension salary, and enter it directly into a calculator. NHRS does not calculate AFC that way.
AFC is an average of a member's highest-paid years of Earnable Compensation in NHRS-covered employment. The averaging period is generally three years for members vested before January 1, 2012 and five years for members who were not vested before that date or who were hired on or after July 1, 2011. Other statutory rules can also affect which compensation is included and how it is used.
Why AFC matters
NHRS explains that a service-retirement benefit is based on three central factors: creditable service, Average Final Compensation, and the benefit factor that applies to the member. Because AFC is part of the pension formula, a higher or lower AFC changes the estimated benefit even when service remains the same.
That does not mean every raise produces an immediate, dollar-for-dollar change in retirement income. A raise affects the average only after it becomes part of one or more high years. For a five-year AFC member, one new salary year replaces only one year in the five-year set. The remaining four years still influence the average.
Three-year AFC and five-year AFC
The first question is not, “What is my current salary?” It is, “Which averaging period applies to me?” NHRS currently describes the two general rules this way:
| Member situation | General AFC period | Planning implication |
|---|---|---|
| Vested before January 1, 2012 (Tier A) | Highest three years of Earnable Compensation | Three high years are averaged, subject to applicable limitations. |
| Not vested before January 1, 2012 (Tier B), or hired on/after July 1, 2011 (Tier C) | Highest five years of Earnable Compensation | Five high years are averaged, subject to applicable limitations. |
“Highest” does not necessarily mean “final” or “consecutive.” For many teachers, the highest-paid years will occur near the end of a career because salary schedules generally rise over time. But NHRS looks to the applicable high years of covered compensation, not simply the last three or five calendar years because they are last.
A simple example of the averaging difference
Consider a fictional teacher whose five highest years of eligible compensation are:
| High year | Earnable Compensation used in the example |
|---|---|
| Year 1 | $74,000 |
| Year 2 | $76,000 |
| Year 3 | $78,000 |
| Year 4 | $80,000 |
| Year 5 | $82,000 |
Using only the numbers in this fictional example, the three highest years average $80,000, while all five years average $78,000. The difference is not a penalty or an error; it is the mathematical result of averaging a different number of years.
This example also shows why a current salary of $82,000 should not be entered as an $82,000 AFC without further thought. The salary is one year. AFC is an average.
Earnable Compensation is the starting point
AFC is not an average of every dollar a teacher receives from an employer. It is based on Earnable Compensation reported for NHRS purposes. Whether a payment is included can depend on its type, timing, the member's tier, and statutory definitions.
For planning, treat base salary, stipends, longevity payments, summer work, coaching pay, unused leave, bonuses, and other payments as separate questions. Do not assume that a payment counts simply because it appears on a paycheck or W-2. Likewise, do not assume that a payment is excluded without checking the NHRS rules that apply to it.
Base pay and compensation over base
NHRS states that, since January 1, 2012, employers have reported compensation as either base pay or “compensation over base” for members who were not vested before that date. Compensation over base can include items such as overtime, annual attendance bonuses or stipends, workers' compensation supplemental pay, and annual longevity pay.
For Tier B and Tier C members, NHRS applies a statutory comparison to limit the percentage of compensation over base used in the high-five AFC calculation. This is a reason a homemade average of gross pay may not match an official NHRS calculation.
The final-12-month earnings limitation
NHRS also describes a limitation on the final 12 months of Earnable Compensation. For benefit-calculation purposes, those final 12 months are generally limited to 150% of the preceding 12 months or the higher Earnable Compensation for another year used in the AFC calculation, excluding the final 12 months. The rule applies to all members, although the official page notes a narrow grandfathering issue involving certain unused earned time accrued before June 30, 1991.
The practical lesson is not to calculate the limitation yourself and assume the result is official. The lesson is that an unusually large final-year payment may not flow into AFC exactly as a simple spreadsheet predicts.
The 120-day payment rule
NHRS states that compensation subject to NHRS contributions generally must be received no later than 120 days after termination from the covered position to be included in the benefit calculation. A delayed payment can therefore create an important timing question, particularly near retirement.
Three fictional teacher scenarios
Scenario 1: A raise improves AFC gradually
Elena is a five-year AFC member. Her district adopts a contract that raises her salary from $76,000 to $82,000. She initially expects her AFC to rise by $6,000 immediately. Instead, she models one year at the new salary, then three years, then five years. She sees that the average rises gradually as newer high years replace older ones. The exercise helps her understand the direction of change without treating a future contract or retirement date as guaranteed.
Scenario 2: A stipend needs verification
Marcus teaches full time and receives a department-chair stipend. His district reports NHRS contributions on the payment, but he does not assume that the full stipend will automatically increase his official AFC in the same way as base pay. He reviews his NHRS statement, asks how the payment is categorized, and uses two calculator scenarios—one excluding it and one including it—to understand the range before requesting an official estimate.
Scenario 3: A large final-year payment deserves a question
Rachel expects her final year of compensation to be much higher because of additional duties and a leave payout. Rather than averaging the total paycheck amounts herself, she asks which portions are Earnable Compensation, whether compensation-over-base limits apply, whether the final-12-month limitation matters, and whether payment timing falls within the 120-day rule. Her planning estimate becomes more cautious, but also more useful.
How to estimate AFC responsibly
- Confirm your tier and averaging period. Use your NHRS member information rather than guessing from age or years in education.
- Start with NHRS-reported compensation. Your contract salary can help with projections, but your member record is the better starting point for historical years.
- Separate actual years from projected years. Label future salaries as assumptions, especially when they depend on negotiations, step movement, lane changes, or continued employment.
- Use the highest eligible years—not automatically the final years. Check whether an earlier year was higher because of additional eligible compensation.
- Model uncertain payments separately. Run one estimate without the payment and another with it rather than silently treating it as guaranteed.
- Keep more precision than you display. Average the full annual amounts before rounding the final planning figure.
- Request an official estimate before acting. A planning calculator is useful for comparisons; NHRS is responsible for the official calculation.
Common misconceptions
“AFC is my last salary.”
No. AFC is an average of qualifying high years. A final salary may be one of those years, but it is not the average by itself.
“My highest years must be consecutive.”
NHRS describes AFC using a member's highest-paid years of membership service. Do not assume that the relevant years must be consecutive unless NHRS confirms that result for your record.
“Everything subject to income tax counts toward AFC.”
Taxable compensation and NHRS Earnable Compensation are not interchangeable concepts. A payment can appear in taxable income without being treated exactly as a member expects for retirement purposes.
“A late-career salary increase is fully reflected after one year.”
Only one new high year has been added after one year. The other years in the three- or five-year average continue to affect the result.
“My calculator average should match NHRS exactly.”
A personal calculation may omit reporting classifications, statutory limitations, timing rules, service details, or corrections contained in the official record.
Frequently asked questions
How do I know whether NHRS will use three years or five years?
NHRS ties the general rule to whether the member was vested before January 1, 2012 and whether the member was hired on or after July 1, 2011. Confirm your tier and status through NHRS My Account or NHRS directly.
Can my highest years come from different NHRS employers?
AFC is based on membership service and Earnable Compensation in NHRS-covered employment. A change from one participating employer to another does not automatically restart the AFC period, but verify how your complete record is shown.
Does coaching or extracurricular pay count?
There is no responsible one-word answer for every payment and member. Ask whether the payment is Earnable Compensation, how it is reported, and whether compensation-over-base rules apply to your tier.
Should I project future raises in the retirement calculator?
Yes, when the purpose is scenario planning and the assumptions are clearly labeled. Compare conservative, middle, and higher-growth cases rather than relying on a single optimistic projection.
What should I do when my own average differs from an NHRS estimate?
Compare the exact years and compensation amounts used, then ask NHRS about any difference. Do not assume either that NHRS made an error or that your spreadsheet captured every applicable rule.
Is AFC the only number that determines the pension?
No. Creditable service and the applicable benefit factor are also central to a service-retirement calculation. Retirement type, age, optional allowance selection, and other provisions may affect the amount ultimately payable.
Key takeaways
- AFC is an average of eligible high years—not a teacher's final salary.
- The general averaging period is three years for Tier A and five years for Tier B and Tier C members.
- Earnable Compensation, compensation-over-base rules, the final-12-month limitation, and payment timing can affect the official calculation.
- A recent raise usually changes AFC gradually as new high years replace older years.
- Use a planning calculator to compare assumptions, then use NHRS for an official, record-based estimate.
Related calculators and guides
- NH Teacher Retirement Calculator — compare three-year and five-year AFC assumptions and retirement scenarios.
- NH Teacher Retirement Basics — understand how AFC fits with service and the benefit formula.
- Questions NH Teachers Can Ask Before Retirement — prepare for an official estimate and retirement conversation.
- Leaving NH Teaching Before Retirement — review the pension questions raised by a career change.
Official resources reviewed
These NHRS resources are the appropriate starting points for current rules and account-specific questions.
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