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How a teacher pension is actually calculated

Almost every state pays a teacher pension from the same three-part formula — an average of your best years, a percentage for each year you worked, and the number of those years. What changes across state lines is the percentage, which years count, and how long you must stay to keep any of it. All 50 formulas are below.

The shape of it: average salary × multiplier × years of service = annual pension. A teacher with a $70,000 average salary, a 2% multiplier and 30 years gets 70,000 × 0.02 × 30 = $42,000 a year for life. Move the multiplier to 1.65% and the same career pays $34,650 — $7,350 a year less, every year, for the same work.

Reading the table

FAS / AFC / AMC / HAS
The salary the formula runs on: final average salary, average final compensation, average monthly compensation, highest average salary. Different names, same idea — an average of your highest-paid years, usually three or five. Which years, and whether overtime or unused leave count, is set by each system and is where two teachers with identical pay end up with different pensions.
The multiplier
What each year of service is worth. This is the single most important number on the page: it is fixed for your whole career by the tier you were hired into, and most states have quietly cut it for newer hires.
Tier
Where a formula says "Tier 2" or "PEPRA", that is the schedule for teachers hired after a given reform date. If you were hired before it, your multiplier is probably higher than the one shown — check with your own system.
DC plan
A handful of states no longer promise a formula at all. Your pension is whatever the account is worth, so the table shows no multiplier: the market sets it, not the state.

All 50 state formulas

Sorted alphabetically. The contribution column is what comes out of the teacher's own paycheque — a 2% multiplier bought with 11% of salary is a different deal from the same 2% bought with 6%.

StateBenefit formulaTeacher paysSocial SecurityAvg. salary
AlabamaRetirement Systems of Alabama AFC × 1.65% × years (Tier 2) 6.2% of salary Covered $62,985
AlaskaAlaska Teachers' Retirement System DC plan (no DB) — Tier IV 8% of salary Not covered $81,450
ArizonaArizona State Retirement System AMC × 2.1–2.3% × years 6.0% of salary Covered $64,291
ArkansasArkansas Teacher Retirement System AFC × 2.15% × years 7% of salary Covered $59,193
CaliforniaCalifornia State Teachers' Retirement System FAS × 2% × years (PEPRA tier) 10.205% of salary Not covered $103,552
ColoradoColorado Public Employees' Retirement Association HAS × 2.5% × years 11% of salary Not covered $72,781
ConnecticutConnecticut Teachers' Retirement Board FAS × 2% × years (Tier IIA) 8% of salary Covered $89,593
DelawareDelaware Public Employees' Retirement System AMC × 1.85% × years 5% on salary above $6K Covered $76,570
FloridaFlorida Retirement System AFC × 1.6% × years (Pension Plan, Tier 2) 3% of salary Covered $56,663
GeorgiaTeachers Retirement System of Georgia AFC × 2% × years 6% of salary Not covered $71,524
HawaiiHawaii Employees' Retirement System AFC × 1.75% × years (Hybrid) 8% of salary Covered $75,860
IdahoPublic Employee Retirement System of Idaho AMC × 2% × years 8.36% of salary Covered $62,786
IllinoisTeachers' Retirement System of the State of Illinois FAS × 2.2% × years (Tier 2) 9.0% of salary Not covered $78,495
IndianaIndiana Teachers' Retirement Fund AFC × 1.1% × years + DC plan 3% of salary Covered $61,661
IowaIowa Public Employees' Retirement System FAS × 2% × years (capped) 6.29% of salary Covered $65,312
KansasKansas Public Employees Retirement System FAS × 1.85% × years (KPERS 2; KPERS 3 hires ≥2015 are cash balance) 6% of salary Covered $61,470
KentuckyTeachers' Retirement System of Kentucky FAS × 1.7–3.0% × years 12.855% of salary Not covered $60,594
LouisianaTeachers' Retirement System of Louisiana AFC × 2.5% × years 8% of salary Not covered $56,785
MaineMaine Public Employees Retirement System AFC × 2% × years 7.65% of salary Not covered $65,621
MarylandMaryland State Retirement and Pension System AFC × 1.5% × years (Reformed) 7% of salary Covered $87,409
MassachusettsMassachusetts Teachers' Retirement Board FAS × 2.0–2.5% × years 11% of salary Not covered $93,554
MichiganMichigan Public School Employees' Retirement System FAC × 1.5% × years (Pension Plus 2) 6.4% of salary Covered $71,023
MinnesotaMinnesota Teachers Retirement Association AFC × 1.7% × years 8.0% of salary Covered $76,234
MississippiPublic Employees' Retirement System of Mississippi AFC × 2% × years 9% of salary Covered $54,975
MissouriPublic School Retirement System of Missouri FAS × 2.5% × years 14.5% of salary Not covered $57,366
MontanaMontana Teachers' Retirement System AFC × 1.6667% × years 8.15% of salary Covered $59,305
NebraskaNebraska Public Employees Retirement Systems FAS × 2% × years 7.25% of salary Covered $63,326
NevadaPublic Employees' Retirement System of Nevada AMC × 2.5% × years (2.25% if enrolled on/after 7/1/2015; 2.67% for service after 7/1/2001) 0% deducted (employer pays 36.75%) Not covered $74,812
New HampshireNew Hampshire Retirement System AFC × 1.52% (yrs 1-30) + 2.5% (yrs 31+) 7% of salary Covered $69,432
New JerseyTeachers' Pension and Annuity Fund FAS × 1/60 × years (TPAF Tier 5) 7.5% of salary Covered $84,974
New MexicoNew Mexico Educational Retirement Board AFC × 2.35% × years 10.7% of salary Covered $69,736
New YorkNew York State Teachers' Retirement System FAS × 1.75% (yrs 1-20) + 2% (yrs 21+) [Tier 6] 3-6% (tiered by salary) Covered $98,655
North CarolinaTeachers' and State Employees' Retirement System AFC × 1.82% × years 6% of salary Covered $60,323
North DakotaTeachers' Fund for Retirement FAS × 2% × years 11.75% of salary Covered $60,704
OhioState Teachers Retirement System of Ohio FAS × 2.2% × years (Tier 1) 14% of salary Not covered $70,586
OklahomaOklahoma Teachers Retirement System AFC × 2% × years 7% of salary Covered $61,931
OregonOregon Public Employees Retirement System FAS × 1.5% × years + IAP DC 6% of salary (IAP + EPSA) Covered $81,657
PennsylvaniaPublic School Employees' Retirement System FAS × 2% × years (Class T-E/T-F) 7.5% of salary Covered $79,078
Rhode IslandEmployees' Retirement System of Rhode Island FAS × 1% × years (DB) + DC plan 3.75% of salary Not covered $85,772
South CarolinaSouth Carolina Retirement System AFC × 1.82% × years 9% of salary Covered $64,050
South DakotaSouth Dakota Retirement System FAS × 1.8% × years (Foundation) 6% of salary Covered $58,486
TennesseeTennessee Consolidated Retirement System AFC × 1% × years (Hybrid: DB + DC) 5% of salary Covered $61,222
TexasTeacher Retirement System of Texas Avg of 5 highest salaries × 2.3% × years 8.25% of salary Not covered $63,749
UtahUtah Retirement Systems FAS × 1.5% × years + DC plan 1.3% (Hybrid, above 10% employer) Covered $72,882
VermontVermont State Teachers' Retirement System AFC × 1.25–2% × years 5% of salary Covered $59,800
VirginiaVirginia Retirement System AFC × 1% × years + DC plan (Hybrid Tier 3) 5% of salary Covered $69,254
WashingtonWashington State Teachers' Retirement System AFC × 1% × years + DC plan (Plan 3) 5–15% (member elects) Covered $96,589
West VirginiaWest Virginia Teachers Retirement System FAS × 2% × years (TRS) 6% of salary Covered $58,099
WisconsinWisconsin Retirement System FAS × 1.6% × years 7.20% of salary Covered $67,794
WyomingWyoming Retirement System AHC × 2.125% × years (Tier 1) 8.75% of salary Covered $65,668

Formulas are the schedule in effect for teachers hired under each state's current tier. Earlier hires are often on a better one. Always confirm against your own system before making a decision — the systems are linked from each state page.

Why the Social Security column belongs here

In 14 states, teachers are outside Social Security entirely: those years build no Social Security benefit, so the formula above is not one leg of a retirement, it is the whole thing. That makes the multiplier matter far more in Alaska, California, Colorado than it does in a state where a smaller pension sits on top of a Social Security cheque. The full list is here, and the timing tool covers when to claim if you are covered.

What the formula does not tell you

Two things decide whether the number above ever reaches you. Vesting: leave before your state's minimum service and you generally get your own contributions back and nothing else — the employer's share stays behind. Tax: 30 states then tax the pension the formula produces, at rates from a fraction of a percent to over 8% effective. See where each state lands, or run your own number in the state comparison tool.

Related: offered a lump sum instead? · will the 403(b) on top of this be enough? · the dataset behind this page