Massachusetts Teachers’ Retirement System
The “Retirement percentage” chart: Membership Tier 1
For members with effective membership dates before April 2, 2012
A comparison of the percentage of salary average allowed under the regular and RetirementPlus formulas, by service and age
To be eligible for regular retirement (also known as superannuation retirement) under either the “regular” formula, or, if you are participating in
RetirementPlus, the enhanced RetirementPlus benefit, you must meet the corresponding eligibility requirements:
n “Regular” formula: You must EITHER have 20 or more years of creditable service at any age, OR be age 55 with 10 or more years of creditable service.
n RetirementPlus formula: You must have 30 or more years of creditable service, at least 20 of which are membership service with the MTRS or the
Boston Retirement System as a teacher; there is no minimum age requirement. If you elected to participate in RetirementPlus, but then do not meet
either the 20-year “teaching” or the 30-year total service requirement by your date of retirement, you will receive a retirement benefit calculated
under the regular formula and a refund of your RetirementPlus contributions, plus regular interest.
Note: Members who transfer into the MTRS from another Massachusetts contributory retirement system have 180 days in which to elect to participate in
RetirementPlus; if they do not respond, they are enrolled in RetirementPlus.
* Two notes on “years of service”: For the purposes of determining your:
1) “RetirementPlus % increase,” only whole years of creditable service will be counted (the amount is not rounded up). For example, if you have 32.9 years of
creditable service, your “RetirementPlus % increase” is based on 32 years of creditable service, or 16%.
2) Percentage of allowable salary average, your full years and full months of creditable service will be counted.
For example, Jane Educator is a teacher on a 10-month contract, and is retiring mid-year, on March 10. At that time, she will have 32 years, 6 months and 10
days of creditable service—or 32.6549 years of creditable service. The amount of creditable service that will be used to calculate Jane’s allowable percentage
of salary average is 32.6 years. (Because the first decimal place represents full months, and the last three decimal places represent only partial months, the last
three decimal places will not be included in Jane’s final benefit calculation.)
AGE AT RETIREMENT
R+ %
Formula increase
46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65+
10
Regular
15.0 16.0 17.0 18.0 19.0 20.0 21.0 22.0 23.0 24.0 25.0
11
Regular
16.5 17.6 18.7 19.8 20.9 22.0 23.1 24.2 25.3 26.4 27.5
12
Regular
18.0 19.2 20.4 21.6 22.8 24.0 25.2 26.4 27.6 28.8 30.0
13
Regular
19.5 20.8 22.1 23.4 24.7 26.0 27.3 28.6 29.9 31.2 32.5
14
Regular
21.0 22.4 23.8 25.2 26.6 28.0 29.4 30.8 32.2 33.6 35.0
15
Regular
22.5 24.0 25.5 27.0 28.5 30.0 31.5 33.0 34.5 36.0 37.5
16
Regular
24.0 25.6 27.2 28.8 30.4 32.0 33.6 35.2 36.8 38.4 40.0
17
Regular
25.5 27.2 28.9 30.6 32.3 34.0 35.7 37.4 39.1 40.8 42.5
18
Regular
27.0 28.8 30.6 32.4 34.2 36.0 37.8 39.6 41.4 43.2 45.0
19
Regular
28.5 30.4 32.3 34.2 36.1 38.0 39.9 41.8 43.7 45.6 47.5
20
Regular
12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 34.0 36.0 38.0 40.0 42.0 44.0 46.0 48.0 50.0
21
Regular
12.6 14.7 16.8 18.9 21.0 23.1 25.2 27.3 29.4 31.5 33.6 35.7 37.8 39.9 42.0 44.1 46.2 48.3 50.4 52.5
22
Regular
13.2 15.4 17.6 19.8 22.0 24.2 26.4 28.6 30.8 33.0 35.2 37.4 39.6 41.8 44.0 46.2 48.4 50.6 52.8 55.0
23
Regular
13.8 16.1 18.4 20.7 23.0 25.3 27.6 29.9 32.2 34.5 36.8 39.1 41.4 43.7 46.0 48.3 50.6 52.9 55.2 57.5
24
Regular
14.4 16.8 19.2 21.6 24.0 26.4 28.8 31.2 33.6 36.0 38.4 40.8 43.2 45.6 48.0 50.4 52.8 55.2 57.6 60.0
25
Regular
15.0 17.5 20.0 22.5 25.0 27.5 30.0 32.5 35.0 37.5 40.0 42.5 45.0 47.5 50.0 52.5 55.0 57.5 60.0 62.5
26
Regular
15.6 18.2 20.8 23.4 26.0 28.6 31.2 33.8 36.4 39.0 41.6 44.2 46.8 49.4 52.0 54.6 57.2 59.8 62.4 65.0
27
Regular
— 18.9 21.6 24.3 27.0 29.7 32.4 35.1 37.8 40.5 43.2 45.9 48.6 51.3 54.0 56.7 59.4 62.1 64.8 67.5
28
Regular
— 22.4 25.2 28.0 30.8 33.6 36.4 39.2 42.0 44.8 47.6 50.4 53.2 56.0 58.8 61.6 64.4 67.2 70.0
29
Regular
26.1 29.0 31.9 34.8 37.7 40.6 43.5 46.4 49.3 52.2 55.1 58.0 60.9 63.8 66.7 69.6 72.5
30
Regular
— 30.0 33.0 36.0 39.0 42.0 45.0 48.0 51.0 54.0 57.0 60.0 63.0 66.0 69.0 72.0 75.0
R+ 12% 42.0 45.0 48.0 51.0 54.0 57.0 60.0 63.0 66.0 69.0 72.0 75.0 78.0 80.0 80.0 80.0
31
Regular
34.1 37.2 40.3 43.4 46.5 49.6 52.7 55.8 58.9 62.0 65.1 68.2 71.3 74.4 77.5
R+ 14% 48.1 51.2 54.3 57.4 60.5 63.6 66.7 69.8 72.9 76.0 79.1 80.0 80.0 80.0 80.0
32
Regular
38.4 41.6 44.8 48.0 51.2 54.4 57.6 60.8 64.0 67.2 70.4 73.6 76.8 80.0
R+ 16% 54.4 57.6 60.8 64.0 67.2 70.4 73.6 76.8 80.0 80.0 80.0 80.0 80.0 80.0
33
Regular
42.9 46.2 49.5 52.8 56.1 59.4 62.7 66.0 69.3 72.6 75.9 79.2 80.0
R+ 18% 60.9 64.2 67.5 70.8 74.1 77.4 80.0 80.0 80.0 80.0 80.0 80.0 80.0
34
Regular
— 47.6 51.0 54.4 57.8 61.2 64.6 68.0 71.4 74.8 78.2 80.0 80.0
R+ 20% 67.6 71.0 74.4 77.8 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0
35
Regular
52.5 56.0 59.5 63.0 66.5 70.0 73.5 77.0 80.0 80.0 80.0
R+ 22% 74.5 78.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0
36
Regular
57.6 61.2 64.8 68.4 72.0 75.6 79.2 80.0 80.0 80.0
R+ 24% 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0
37
Regular
62.9 66.6 70.3 74.0 77.7 80.0 80.0 80.0 80.0
R+ 26% 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0
38
Regular
— 68.4 72.2 76.0 79.8 80.0 80.0 80.0 80.0
R+ 28% 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0
39
Regular
74.1 78.0 80.0 80.0 80.0 80.0 80.0
R+ 30% 80.0 80.0 80.0 80.0 80.0 80.0 80.0
40
Regular
— 80.0 80.0 80.0 80.0 80.0 80.0
R+ 32% 80.0 80.0 80.0 80.0 80.0 80.0
YEARS OF SERVICE*
RetirementPlus vs.
regular formula
n NO DIFFERENCE
n MAXIMUM DIFFERENCE:
Member receives full
amount of
RetirementPlus % increase
n LESSER DIFFERENCE:
Member receives only that
amount of RetirementPlus
% increase needed to reach
80% salary maximum
Tier 1 members are eligible to retire
EITHER with 20 or more years of
creditable service at any age, OR at age
55 with 10 or more years of service.