Arizona · ASRS · Methods

How we calculate ASRS estimates

Every number on the Arizona pages comes from ASRS's own publications, with the Arizona Revised Statutes as a second source. Here's what the calculator does, where each rule comes from, and what it leaves out.

Built from ASRS's own publications

We use 12 ASRS documents, saved from www.azasrs.gov on November 12, 2026. Where ASRS states a rule, its document is the first cite, with the page, slide or table. The Arizona Revised Statutes (Title 38, Chapter 5, Article 2, and A.R.S. 43-1022 for taxes) are the second cite, and the only cite where ASRS's documents are silent. Where the two differ, we say so below.

We did not have a full ASRS member handbook. 9 points that no document settles are still marked "Check with ASRS"; they are listed below.

Methods (Arizona ASRS)
ASRS documentWhat we use it for
ASRS Employer Basics 2025 handbook (Basics Handbook, Mar. 2025)
Footer 'EMPLOYER BASICS 2025'; PDF modified Apr. 9, 2026
Eligibility, the multiplier, average pay, service credit, the benefit start date, refunds, survivor and premium benefit rules, and ASRS's phone numbers.
ASRS New Member Guide
Version 4.26.2026 (PDF created May 11, 2026)
Contributions, refund choices, the pre-retirement survivor benefit, Social Security, the 65+ waiver, and ASRS's answer on cost-of-living raises.
ASRS Fact Sheet
Revised 12/24/2025
This year's and next year's contribution rates, and ASRS's phone number.
ASRS Basics for Employers, Session 1: Intro to ASRS (slides)
Mar. 2025
The membership-date table and ASRS's own benefit example (21 years, $2,800).
ASRS Basics for Employers, Session 3: Service Verification, Refunding, Retiring, Return to Work (slides)
Mar. 2025
Buying service, forfeited service, the start date, and return-to-work rules.
ASRS Basics for Employers, Session 4: Health Insurance Premium Benefit (slides)
Mar. 2025
How contributions split, and the two-single-or-one-family premium benefit example.
2025 ASRS Employer Conference: Health Insurance Premium Benefit (slides)
2025
Premium benefit paid only for full months.
ASRS Application for Re-Retirement Benefit
Revised 08/29/2023
The payment options, the married-member rule, the partial lump sum, and reretirement.
ASRS web page: Retirement Eligibility
Web page
Normal and early retirement by membership date, and the average-pay windows.
ASRS web page: Return to Work
Web page
Working after retirement: the 20/20 line, the 365-day rule, and early retirees.
ASRS web page: Retiree Health Insurance Premium Benefit and Optional Health Insurance Premium Benefit
Web page
The premium benefit table and who qualifies.
ASRS web page: Estimate Your Benefits
Web page
The graded multiplier table, the wage replacement table, and ASRS's early-retirement factors.
  1. 1

    Find your rules

    Your ASRS membership date puts you in one of three groups: before January 1, 1984, January 1, 1984 to June 30, 2011, or July 1, 2011 and later. The group sets your normal retirement rules and how early cuts are measured.

    ASRS Retirement Eligibility page, 'Changes in law over time' table; A.R.S. 38-711(5)(a); ASRS Retirement Eligibility page, 'Changes in law over time' table; A.R.S. 38-711(5)(b); ASRS Retirement Eligibility page, 'Changes in law over time' table; A.R.S. 38-711(5)(c)
  2. 2

    Project your service

    We add the time from today to your retirement date to the service you enter, one month of service per calendar month. ASRS counts service in months too, but gives school employees a full year after nine months.

    ASRS Employer Basics 2025, p. 9; A.R.S. 38-739
  3. 3

    Pick the multiplier

    Your total service picks one multiplier from ASRS's Graded Multiplier Table, and it applies to all your years.

    ASRS Estimate Your Benefits page, Graded Multiplier Table; ASRS Employer Basics 2025, p. 9; A.R.S. 38-757(B)(1)(a)-(d)
  4. 4

    Apply the formula

    Years of credited service × multiplier × average monthly compensation. We take your average yearly pay and divide by 12.

    ASRS Estimate Your Benefits page, Benefit Formula; ASRS Employer Basics 2025, p. 8; A.R.S. 38-757(B)
  5. 5

    Check eligibility

    We test your age and service on the retirement date against the normal retirement rules for your group, and the early-retirement minimum.

    ASRS Retirement Eligibility page, table; ASRS Employer Basics 2025, p. 8; A.R.S. 38-711(27)(a); ASRS Retirement Eligibility page, table; ASRS Employer Basics 2025, p. 8; A.R.S. 38-711(27)(b); ASRS Retirement Eligibility page, table (EARLY: 50 + 5 years); ASRS Employer Basics 2025, p. 8; A.R.S. 38-758(A); A.R.S. 38-711(11)
  6. 6

    Apply any early cut

    Before your normal retirement date we cut 5% a year to age 60 and 3% a year after, by whole months, up to the birthday your service sets. For membership from July 1, 2011 this gives ASRS's published factors at every whole age. For earlier membership we follow the law (to 60 with 20+ years, and the smaller cut at 77 to 79 points), which differs from ASRS's simple estimator.

    ASRS Estimate Your Benefits page, early retirement factors in the page's estimator; A.R.S. 38-758(C); A.R.S. 38-758(B)(1)
  7. 7

    Show payment options and health help

    Only the straight life annuity gets a dollar amount: ASRS doesn't publish its option factors. The health premium figures are ASRS's premium benefit table.

    ASRS Re-Retirement Application, p. 1 (Section 3); A.R.S. 38-760(A)-(B); A.R.S. 38-711(2), (22); ASRS Premium Benefit page, 'Premium Benefit: Determine Your Amount' table; A.R.S. 38-783(A)-(C)

The rules themselves are explained on the formula, early-retirement and premium benefit pages.

What the calculator doesn't cover

How we check the math

The calculator runs on a small engine that reads every rule from one data file, with an ASRS or statute cite for each rule. Automated tests check each rule's edges (the membership-date cutoffs, the multiplier bands, the eligibility ages, the early cut at each target birthday) and every example ASRS publishes: its 21-year benefit example, its wage replacement table, its premium benefit table, and its early-retirement factors. The tests run every time the site is built.

ASRS's early-retirement factors: 80 of 80 published factors (ages 50 to 65, 5 service columns) match our engine for membership from July 1, 2011. ASRS Estimate Your Benefits page, estimator script

How we check the math (Arizona ASRS)
ExampleExpectedOur engineCite
ASRS's example: 21 years × 2.15% × $2,800$1,264.20$1,264.20ASRS Session 1, slide 21; A.R.S. 38-757(B) Match
30 years × 2.30% × $5,000 average monthly compensation$3,450.00$3,450.00A.R.S. 38-757(B) Match
19 years × 2.10% × $5,000$1,995.00$1,995.00A.R.S. 38-757(B)(1) Match
20 years × 2.15% × $5,000$2,150.00$2,150.00A.R.S. 38-757(B)(1) Match
Early cut: membership from July 1, 2011, age 57, 26 years21%21%ASRS Estimate Your Benefits page, early retirement factors (age 57: 0.79); A.R.S. 38-758(C) Match

Still unconfirmed

ASRS's documents and the statute don't settle these points. Each is labeled "Check with ASRS" where it shows up on the site. Here's what we do about each one.

Check with ASRS

If your membership began before July 1, 2011 and you have 20 or more years, the law measures an early cut to age 60. The simple estimator on ASRS's website measures it to 62 for everyone, which gives a bigger cut.

We follow the law (to 60, and the 77-79 points rule). Your myASRS estimate is the one to trust.

ASRS Estimate Your Benefits page, early retirement factors; A.R.S. 38-758(B)
Check with ASRS

If your membership began before July 1, 2011 and your age plus service is 77 to 79, the law gives two ways to reduce an early benefit. ASRS's publications do not say which one it uses when both apply.

We use whichever reduction is smaller, and say so in your results.

A.R.S. 38-758(B)
Check with ASRS

ASRS publishes its early-retirement factors by whole age (50, 51, 52 ...). It does not say how part of a year is counted.

We count whole months: one-twelfth of the yearly rate for each full month before the target birthday.

ASRS Estimate Your Benefits page, early retirement factors; A.R.S. 38-758(B)(1), (C)
Check with ASRS

ASRS's example is age 57 plus 23 years of service equals 80 points. Neither ASRS nor the law says how part of a year of age counts.

We count your age in whole months.

ASRS Employer Basics 2025, p. 8; A.R.S. 38-711(27)(a)(iii)
Check with ASRS

Survivor, period-certain and partial lump-sum options are worked out from your age and your beneficiary's age. Neither ASRS's publications nor the law print the factors.

We do not show dollar amounts for these options. Ask ASRS for an estimate that uses your beneficiary's age.

ASRS Re-Retirement Application, p. 1; A.R.S. 38-760(B); A.R.S. 38-711(2)
Check with ASRS

ASRS tells new members they will not get a cost-of-living adjustment. The law keeps a separate increase for members who joined before an amendment date, but the law page does not give that date.

We explain how the increase works but do not say whether you qualify, and we do not project increases.

ASRS New Member Guide, pp. 6, 8; A.R.S. 38-767(A)
Check with ASRS

ASRS gives school employees a full year of service after nine months of contributions, with no more than one year in a fiscal year.

The calculator adds service at one month per calendar month from today, so a school employee may reach a milestone a few months sooner than shown. Your ASRS statement has the real figure.

ASRS Employer Basics 2025, p. 9; A.R.S. 38-739
Check with ASRS

ASRS says most members also get full Social Security coverage, through their employer's own agreement. Not every employer has one.

We do not say whether your job is covered. Look for Social Security tax on your pay stub or ask your district.

ASRS New Member Guide, p. 3; ASRS Session 1, slide 37; A.R.S. 38-702(B)(3)-(5)
Check with ASRS

For membership before 1984, ASRS's eligibility page says the average is the higher of 36 or 60 months, and its employer handbook says 60 months.

The calculator uses the average pay you enter. It does not pick the averaging window for you.

ASRS Retirement Eligibility page; ASRS Employer Basics 2025, pp. 9, 24; A.R.S. 38-711(5)(a)

Where ASRS and the law differ

Sources

Cites name the ASRS document and its page, slide or table first, then the statute section, for example "ASRS Employer Basics 2025, p. 9; A.R.S. 38-757(B)(1)". Last reviewed Nov. 12, 2026.

Found a mistake?Email hello@teacherpensioncalculator.com with the page, what you entered, and what ASRS told you. We fix confirmed errors and note the change.
The official numbersOnly ASRS can tell you your actual benefit. Use your myASRS account, the official website (www.azasrs.gov), or call the ASRS Member Advisory Center: 602-240-2000 in metro Phoenix, 520-239-3100 in metro Tucson, 800-621-3778 elsewhere. Hours: Monday through Wednesday 6 a.m.-5 p.m., Thursday and Friday 6 a.m.-4 p.m. ASRS Employer Basics 2025, p. 38; ASRS Fact Sheet (Dec. 2025); ASRS Re-Retirement Application, p. 1

Source: ASRS Employer Basics 2025 handbook, March 2025 edition, saved Nov. 12, 2026; with other ASRS publications and the Arizona Revised Statutes, pp. 8, 9, 24, 38. Also ASRS New Member Guide, pp. 3, 5, 6, 8. Also ASRS Fact Sheet. Also ASRS Basics for Employers, Session 1: Intro to ASRS (slides), slides 21, 37. Also ASRS Basics for Employers, Session 4: Health Insurance Premium Benefit (slides), p. 6. Also ASRS Application for Re-Retirement Benefit, p. 1. Also ASRS web page: Retirement Eligibility. Also ASRS web page: Return to Work. Also ASRS web page: Retiree Health Insurance Premium Benefit and Optional Health Insurance Premium Benefit. Also ASRS web page: Estimate Your Benefits. Also A.R.S. 38-711, 38-736, 38-737, 38-739, 38-746, 38-757, 38-758, 38-760, 38-766, 38-766.01, 38-767, 38-768, 38-769, 38-783 (Arizona Revised Statutes, Title 38, Ch. 5, Art. 2). Also A.R.S. 38-702 (Social Security agreement). Last reviewed .