This page explains the Hawaii ERS calculator. The rules it uses are in plain English on the formula, early retirement and which plan pages.
- 1
Find your plan and tier
Your plan from your membership date (Hybrid from July 1, 2006; Noncontributory from July 1, 1984; Contributory before), unless you pick one. Your tier from the same date: before July 1, 2012, or after June 30, 2012.
ERS Members FAQ page, 'How do I know what plan I'm in?'; Hybrid handout (Oct. 2026) p. 3, Service Retirement Eligibility Requirements ('Membership date after June 30, 2012' / 'Membership date prior to July 1, 2012') - 2
Project your service
We add the months from today to your retirement date to the service you enter, unless you say it's already your service at retirement or that you've left. Dates move to the 1st of a month (or December 31 stays).
Hybrid handout (Oct. 2026) p. 2, Retirement Planning (2) and (3); HAR §6-26-2(1) - 3
Check the retirement rules
Age in full years on the retirement date. Hybrid: 62/5 or 55/30 (before July 2012), 65/10 or 60/30 (after). Noncontributory 62/10 or 55/30. Early from 55 with 20 years.
Hybrid handout (Oct. 2026) p. 3, Service Retirement Eligibility Requirements (membership date prior to July 1, 2012: Age 62 w/5 yos, Age 55 w/30 yos; early Age 55 w/20 yos; multiplier 2.0%; vesting 5 yos; AFC average of 3 highest years of gross pay); Hybrid handout (Oct. 2026) p. 3, Service Retirement Eligibility Requirements (membership date after June 30, 2012: Age 65 w/10 yos, Age 60 w/30 yos; early Age 55 w/20 yos; multiplier 1.75%; vesting 10 yos; AFC average of 5 highest years of base pay); Noncontributory handout (Oct. 2026) p. 3, Service Retirement Eligibility Requirements (Regular 62/10 and 55/30, no age reduction; Early 55/20, 6% age reduction for each year between age 55-62; Deferred 65/10, 55/30, 55/20-29 with 6% reduction); HAR §6-26-16 - 4
Apply the formula
Years × AFC ÷ 12 × your percentage, with years at 1.25% where you say so, plus unused sick leave (60 days for 3 months, then a month per 20 days). The result is the Maximum Allowance.
Hybrid handout (Oct. 2026) p. 3, Pension Calculation Formula; Hybrid handout (Oct. 2026) p. 3 and p. 5, Previously Refunded Contributory Service, Forfeited Noncontributory Service; ERS annual report 2024 p. 46, Note A.3 (benefit is bifurcated by the service earned in each structure); Hybrid handout (Oct. 2026) p. 6, Unused Sick Leave; HAR §§6-21-10, 6-21-11 - 5
Cut it for early retirement
5% (Hybrid) or 6% (Noncontributory) a year, by age to the nearest month, prorated a twelfth per month.
ERS annual report 2024 p. 12, Early Retirement, Hybrid ('Maximum allowance reduced 5% per year under age 62'); p. 48, Note A.3; ERS actuarial valuation 2025 PDF p. 47, Table 16; Noncontributory handout (Oct. 2026) p. 3; ERS annual report 2024 p. 12 ('Maximum allowance reduced 6% per year under age 62'); HAR §6-26-15, §6-26-17 - 6
Options, increases, work
Only the Maximum Allowance is in dollars, unless you and your beneficiary match ERS's example ages. The yearly increase is 2.5% or 1.5% of the original, from July 1 of the next calendar year. Return-to-work breaks are from ERS form 212.
Hybrid handout (Oct. 2026) p. 8, Option Comparison Summary; p. 9, Summary of Options; Hybrid handout (Oct. 2026) p. 8 and p. 10, D. Post Retirement Increases; ERS 212 Retirant Returning to Work (2018) (citing HRS §88-9, Act 179/SLH 2010, and §88-98)
What the calculator doesn't cover
- Your AFC. We use the number you enter; ERS figures it from your pay records, including anti-spiking for members who joined before July 2012.
- Dollar amounts for payment options, except at ERS's example ages: ERS publishes no factors.
- Disability retirement, and police, fire, judges and elected officials.
- The cost of buying military or other service, health insurance costs, and taxes.
- Part-time service converted to full time. Enter your service as ERS credits it.
About Hawaii law
We could not download the Hawaii Revised Statutes (chapter 88): the Legislature's site refused our request. Where a page mentions a statute, it's as quoted or cited in an ERS document. We haven't read the statute itself.
How we check the math
The calculator runs on a small engine that reads every rule from one data file, with a source for each. Automated tests check it against every worked example in ERS's handouts, the age examples in the Hawaii Administrative Rules, and the edges of each rule (birthdays, the 1st of the month and December 31, the July 2012 split). The tests run every time the site is built.
- Source
- $875.00
- Our engine
- $875.00
- Result
- Match
- Source
- $2,340.00
- Our engine
- $2,340.00
- Result
- Match
- Source
- $1,406.25
- Our engine
- $1,406.25
- Result
- Match
- Source
- $1,600.00
- Our engine
- $1,600.00
- Result
- Match
- Source
- $2,240.00
- Our engine
- $2,240.00
- Result
- Match
- Source
- 9 months
- Our engine
- 9 months
- Result
- Match
- Source
- 55 yr 0 mo
- Our engine
- 55 yr 0 mo
- Result
- Match
- Source
- 54 yr 11 mo
- Our engine
- 54 yr 11 mo
- Result
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- Source
- $2,023
- Our engine
- $2,023
- Result
- Match
- Source
- $1,456
- Our engine
- $1,456
- Result
- Match
- Source
- $46,800
- Our engine
- $46,800
- Result
- Match
- Source
- $38,850
- Our engine
- $38,850
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- Match
- Source
- $40,200
- Our engine
- $40,200
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- Not allowed
- Our engine
- Not allowed
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- Allowed
- Our engine
- Allowed
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- Source
- $60,000
- Our engine
- $60,000
- Result
- Match
- Source
- $48,000
- Our engine
- $48,000
- Result
- Match
Things to check with ERS
The sources don't settle these points. Each is labelled "Check with ERS" where it shows up on the site.
Partial years of the early cut
Sources state the early reduction per year (5% Hybrid, 6% Noncontributory). HAR §6-26-15 says age to the nearest year and full month is used for the reduction, so our calculator prorates by month (5%/12 per month). No source shows a worked early-retirement example with a partial year.
What would settle it: HRS §88-332 (Hybrid) / §88-282 (Noncontributory) text, or an ERS estimate for an early retirement at a non-birthday dateJoined after June 30, 2012, with 30 years: cut to 65 or to 60?
For Hybrid members hired after June 30, 2012 with 30 or more years who retire at 55-59, the sources say early retirement is reduced 5% per year under age 65. Normal retirement with 30 years is at 60, so the reduction might instead be measured to 60. Our calculator follows the sources (to 65) and adds a note.
What would settle it: HRS §88-331/§88-332 text (blocked) or an ERS Benefits Calculator runDoes the early cut reach the 1.25% part?
Whether the early-retirement reduction for a Hybrid member also applies to the 1.25% Noncontributory portion, and at which rate (5% Hybrid or 6% Noncontributory). Sources say only 'maximum allowance reduced 5% per year'. Our calculator reduces the whole allowance at the Hybrid rate.
What would settle it: HRS §88-332 or an ERS estimate for an early-retiring converted memberNo published option factors
ERS publishes no option factor tables; only one worked example per plan (Hybrid 60/57, Noncontributory 62/57, Contributory 58/57).
What would settle it: ERS actuarial option factor tables or a member's own ERS estimateGoing back to work: the 2026 changes
ERS 212 (Rev. 9/2018) gives a 6-month break for non-ERS positions and 12 months for difficult-to-fill positions. SB 99 (2026) passed final reading and awaited signature per Holomua Summer 2026; its final status and text are unknown, and HRS §88-9 could not be downloaded. No earnings limit appears in the saved sources.
What would settle it: HRS §88-9 current text and the 2026 session law from SB 99 (capitol.hawaii.gov, blocked)Hawaii tax and Schedule J
ERS says ERS benefits are not subject to Hawaii income tax; DOTAX Schedule J instructions say the part of a contributory pension attributable to employee contributions may be taxable. See conflicts 'hawaii-tax-schedule-j'.
What would settle it: A DOTAX statement or HAR §18-235-7-03 text on ERS Hybrid/Contributory pensionsEUTF costs and cost-sharing
Retiree health rules come only from the ACFR 2024 summary; EUTF cost-sharing percentages and premiums are not in any saved source.
What would settle it: EUTF retiree eligibility guide (eutf.hawaii.gov)Hybrid members who leave before retiring
ACFR says a deferred pre-2012 Hybrid member's allowance is payable 'as early as age 55' (with 20 years, reduced) or at 62 with 5-19 years. Our calculator treats deferred Hybrid members like active ones; whether the 30-years-at-55 unreduced rule also applies after leaving is not stated for Hybrid.
What would settle it: HRS §88-331 text or the Leaving Employment handout for Hybrid with a deferred exampleContributory members who leave before retiring
For a deferred (left service) Contributory member the ACFR says only 'payable at age 55'. Whether the 25-year any-age early retirement applies after leaving is not stated; our calculator does not allow it.
What would settle it: HRS §88-73/§88-74 textNoncontributory membership after June 30, 2012
Noncontributory membership after June 30, 2012 is shown in the ACFR table, but former Noncontributory members returning after a break must join the Hybrid plan (Members FAQ). Our calculator supports only pre-July 2012 Noncontributory membership dates and adds a note.
What would settle it: ERS confirmation of who can hold a post-2012 Noncontributory membership dateThe federal pay limit on your AFC
The 2012 Hybrid brochure gives the 2012 federal compensation limit ($250,000); no current figure is in the sources, so none is applied.
What would settle it: A current ERS publication stating the IRC 401(a)(17) limitThe cost of buying military service
Hybrid and Contributory military purchases are priced by actuarial determination; no factors are published.
What would settle it: ERS cost estimate (Form 1551 claim)Where sources disagreed
- The 2012 Hybrid and Noncontributory Q&A brochures (Q4) say the employer 'currently contributes 15% of your compensation'. The June 30, 2025 valuation and ACFR 2024 say the statutory rate for All Other Employees is 24% (FY 2021 and beyond). The brochures are older and are not used for the rate. Hybrid Q&A brochure (2012) Q4; ERS actuarial valuation 2025 PDF p. 25, Table 1 line 7a
- ACFR 2024 says the post-June 30, 2012 tier came from 'legislation passed in 2011' (p. 11) but labels it 'Act 163/2012, SLH' in the table notes (p. 12). The tier date (membership after June 30, 2012) is the same in every source, so the act year does not affect any rule. ERS annual report 2024 p. 11 and p. 12, note (a)
- The interest rate on contributions splits on July 1, 2011 (4.5% before, 2% after June 30, 2011), one year before the July 1, 2012 benefit tier date. This is how every source states it; it is recorded here so the two dates are not merged. Hybrid Q&A brochure (2012) Q5; ERS annual report 2024 p. 13; ERS actuarial valuation 2025 PDF p. 51, Table 16 ('For members hired after June 30, 2011, the interest crediting rate on employee contributions and accrued interest is 2.0% per annum')
- For Contributory members hired after June 30, 2012, the ACFR introduction says the early allowance is 'reduced 5% per year under age 60 plus 4% per year under age 55' (p. 17) while Note A.3 says 'reduced by 5.00% per year under age 60' (p. 47). Early retirement requires age 55, so the extra 4% never applies; both give the same result. ERS annual report 2024 p. 17 and p. 47
- The Retirement Information handouts give 1.5% for 'membership dates after June 30, 2012'; the Retirees FAQ and Holomua say 'on or after July 1, 2012'. These mean the same day boundary. Hybrid handout (Oct. 2026) p. 8; ERS Retirees FAQ page
- ERS says ERS benefits (including the employer-funded portion) are not subject to Hawaii income tax. The Department of Taxation's Schedule J instructions say a pension plan to which employee contributions were made must use Schedule J, and 'only the increase in the value of the plan attributable to your contributions is taxable'. The ERS sources are followed; whether Schedule J reaches Hybrid or Contributory ERS pensions is in needsValidation. Hybrid handout (Oct. 2026) p. 14; Hawaii Tax Dept. Schedule J instructions (2025) PDF p. 2, Who Must Use This Form, item 4
Sources
- ERS Hybrid Retirement Information October 2026
- ERS Noncontributory Retirement Information October 2026
- ERS Contributory Retirement Information (general employees) October 2026
- ERS Military Service Credit booklet October 2026
- Questions & Answers About Your Employees' Retirement System: Hybrid Plan 2012 (file ContribHybrid201205.pdf; still the edition linked from the ERS Active/New Hire page)
- Questions & Answers About Your Employees' Retirement System: Noncontributory Plan Rev. 12/09
- Questions & Answers About Your Employees' Retirement System: Contributory Plan for General Employees 2012 (file ContribGeneral201205.pdf)
- Leaving State or County Employment? Hybrid Plan Rev 06/2012
- Ordinary death benefit sheets (Hybrid, Noncontributory, Contributory) 2013-04
- ERS 212 Retirant Returning to Work Rev. 9/2018
- Example of Impact of Anti-Spiking Provision 2012 March (Final), posted Apr. 2023
- ERS 1099-R Frequently Asked Questions Updated 11/30/2022
- ERS Special Tax Notice Regarding Retirement Plan Payments 03-2024
- Holomua newsletter, Spring, Summer and Fall 2026 2026
- ERS Annual Comprehensive Financial Report 2024 Fiscal year ended June 30, 2024 (posted Nov. 2025)
- Report to the Board of Trustees on the 100th Annual Actuarial Valuation for the Year Ending June 30, 2025 (Gabriel, Roeder, Smith & Company) Dec. 29, 2025
- Hawaii Administrative Rules title 6, chapter 26 (Application for retirement benefits; proof of age and computation of age) am. and comp. Apr. 11, 2022
- Hawaii Administrative Rules title 6, chapter 21 (Service credit; exclusion from membership) comp. 2/9/89
- ERS web pages (Members FAQs updated 2022-06-13; Retirees FAQs updated 2022-09-06; Excess Pension Costs; others) saved Nov. 12, 2026
- Hawaii Department of Taxation, Schedule J (Form N-11/N-15/N-40) instructions, Supplemental Annuities Schedule Rev. 2025
- Hawaii Department of Taxation, Tax Information Release No. 96-5 (Taxation of Pensions) Aug. 14, 1996
We cite the page number printed on each handout and on the annual report, the PDF page for the actuarial valuation and newsletters, and the question number for the Q&A brochures. Last reviewed Nov. 12, 2026.
Source: Hawaii ERS Hybrid Retirement Information, October 2026, pp. 2, 3, 5, 6, 7, 8, 9, 10, 11, 13. Also: ERS Members FAQ page; Noncontributory handout (Oct. 2026) pp. 3, 7; ERS annual report 2024 pp. 12, 46, 48; ERS actuarial valuation 2025 PDF p. 47; ERS 212 Retirant Returning to Work (2018); Contributory handout (Oct. 2026) p. 7; ERS anti-spiking example (2012) p. 1; ERS Hybrid death benefit sheet (2013); HAR §§ 6-21-10, 6-21-11, 6-26-2, 6-26-15, 6-26-16, 6-26-17. Last reviewed .