PERSI Historical Numbers

PERSI's historical numbers and rates. Click on a tab to look at the numbers for that section, or view our printable version.

PERSI Employer Contribution Rates
Date General Police/Fire Member
7-1-65 to 12-31-66
9.10%
9.10%
1-1-67 to 6-30-67
8.10
8.10
7-1-67 to 12-31-67
8.00
8.00
1-1-68 to 6-30-71
7.51
7.51
7-1-71 to 6-30-77
7.00
7.00
7-1-77 to 6-30-79
7.30
7.30
7-1-79 to 6-30-80
8.50
8.50
7-1-80 to 9-30-82
9.50
9.50
10-1-82 to 2-28-83
9.05
9.05
3-1-83 to 9-30-84
8.75
8.75
10-1-84 to 9-30-85
8.82
8.82
10-1-85 to 9-30-92
8.89
8.89
10-1-92 to 6-30-93
9.75
9.75
7-1-93 to 9-30-93 *
9.75
9.99
10-1-93 to 9-30-94
10.63 Rule 120.01
10.87 Rule 120.02
10-1-94 to 10-31-97
11.61 Ch.03 Rule 026
11.85 Ch.03 Rule 028
11-1-97 to 6-30-03
9.77
10.01
7-1-03 to 6-30-04
9.77
10.11**
7-1-04 to current
10.39
10.73

* Effective 7-1-93 SB1140 established a different level of disability benefits for police and fire members.

** Effective 7-1-03 SB1050 established a $100,000 death benefit for police/fire members, paid for by employers only

PERSI Employee Contribution Rate

Prior to 7-1-83, employee contributions were taxed; 7-1-83 and after, taxed deferred.

Date General Employees Police/Fire Member
7-1-65 to 6-30-74
3.00% First $400, 6.00% After
3.60% First $400, 7.20% After
7-1-74 to 6-30-80
4.50%
5.40%
7-1-80 to 6-30-81
4.67
5.60
7-1-81 to 6-30-82
4.84
5.80
7-1-82 to 9-30-82
5.01
6.00
10-1-82 to 6-30-83
5.05
6.05
7-1-83 to 9-30-83
5.22
6.25
10-1-83 to 9-30-84
5.26
6.30
10-1-84 to 9-30-85
5.30
6.35
10-1-85 to 9-30-92
5.34
6.40
10-1-92 to 6-30-93
5.84
7.02
7-1-93 to 9-30-93 *
5.84
7.19
10-1-93 to 9-30-94
6.38 Rule 104.04.a.
7.82 Rule 104.04.b.
10-1-94 to 10-31-97
6.97 Ch.03 Rule 100
8.53 Ch.03 Rule 101
11-1-97 to 6-30-04
5.86
7.21
7-1-04 to current
6.23
7.65

* Effective 7-1-93 SB1140 established a different level of disability benefits for police and fire members.

Net Actuarial Assumption Rate
Date General
7-1-65 to 6-30-67
4.0%
7-1-67 to 6-30-73
4.5
7-1-73 to 6-30-76
5.5
7-1-76 to 6-30-80
6.5
7-1-80 to 6-30-82
7.0
7-1-82 to 6-30-85
7.5
7-1-85 to 6-30-86
10.5
7-1-86 to 6-30-87
9.5
7-1-87 to 6-30-88
8.5
7-1-88 to 6-30-04
7.5
7-1-04 to current
7.25
Unused Sick Leave

Effective July 1, 2006, as specified in Rule 59.01.06.552, employer groups participating in the pool must contribute the percentage of employee covered payroll based on the number of days of paid sick leave permitted during the contract year for certified teachers as set forth in the following table:

Beginning July 1, 2006 July 1, 2009 July 1, 2010
9-10 days
1.16%
1.18%
1.21%
11-14 days
1.26%
1.35%
1.44%

More than 14 days Individual rate to be set by the Retirement Board based on current cost and actuarial data and reviewed annually.

Where a four (4) day work week or similar policies have been adopted, adjustments shall be made to convert the number of days of paid sick leave to the contribution level necessary to maintain equity within the pool.

School Districts
State of Idaho Agencies
Dates Rates Dates Rates
7-1-76 to 6-30-82
Actual amount
7-1-76 to 6-30-82
Actual amount
7-1-82 to 6-30-85
.125%
7-1-82 to 6-30-85
.125%
7-1-85 to 12-31-85
.160
7-1-85 to 6-30-86
.155
1-1-86 to 9-30-87
.235
7-1-86 to 2-28-87
.220
10-1-87 to 9-30-88
.295
3-1-87 to 6-30-90
.400
10-1-88 to 8-31-89
.325
7-1-90 to 6-30-91
.620
9-1-89 to 8-31-90
.550
7-1-91 to 6-30-92
.730
9-1-90 to 8-31-91
.775
7-1-92 to 6-30-93
.800
9-1-91 to 8-31-93
1.000
7-1-93 to
.650
9-1-93 to 8-31-96
1.100
9-1-96 to 7-1-06
1.150
Reinstatement Interest Rate
Year June 30 Prime Rate* 3 Year Average Jan. 1 Reinstatement Rate
1997
8.5%
N/A
N/A
1998
8.50
N/A
N/A
1999
7.75
8.25%
N/A
2000
9.50
8.58
9.25%
2001
6.75
8.00
9.58
2002
4.75
7.00
9.00
2003
4.00
5.17
8.00
2004
4.00
4.25
6.17
2005
6.25
4.75
5.25
2006
8.25
6.17
5.75
2007
8.25
7.58
7.17
2008
8.58

*The reinstatement interest rate changes on an annual basis. The rate is derived by determining the average of the Prime Rate listed in the Money Rates section of the Wall Street Journal on June 30 of the previous 3 years and adding 1% to the 3-year average.

Interest Credited to Member Accounts

1965-1966 Year Members received 4.00% on 7-1-1967 and 4.25% on 7-1-1968
1966-1967 Year Members received 4.25% on 7-1-1968

Dates Compound Monthly
7-1-67 to 12-31-68
4.25%
1-1-69 to 12-31-69
4.50
1-1-70 to 6-30-72
5.00
7-1-72 to 6-30-73
5.50
7-1-73 to 6-30-76
6.00
7-1-76 to 6-30-80
6.50
7-1-80 to 6-30-81
7.00
7-1-81 to 6-30-82
7.50
7-1-82 to 6-30-83
8.00
7-1-83 to 6-30-84
8.50
7-1-84 to 6-30-86
9.00
7-1-86 to 6-30-87
7.50
7-1-87 to 6-30-89
6.50
7-1-89 to 6-30-90
7.00
7-1-90 to 12-31-90
7.50
1-1-91 to 6-30-91
7.25
7-1-91 to 12-31-91
6.50
1-1-92 to 6-30-92
5.00
7-1-92 to 12-31-92
4.50
1-1-93 to 6-30-94
4.00
7-1-94 to 12-31-94
4.25
1-1-95 to 6-30-95
5.25
7-1-95 to 12-31-95
6.00
1-1-96 to 6-30-96
5.50
7-1-96 to 12-31-96
5.00
1-1-97 to 6-30-97
5.25
7-1-97 to 6-30-98
5.50
7-1-98 to 12-31-98
5.25
1-1-99 to 12-31-99
4.75
1-1-00 to 12-31-00
11.11*
1-1-01 to 12-31-01
12.86
1-1-02 to 12-31-02
4.82
1-1-03 to 12-31-03
1.90
1-1-04 to 12-31-04
3.22
1-1-05 to 12-31-05
17.51
1-1-06 to 12-31-06
10.24
1-1-07 to 12-31-07
11.69
**1-1-08 to 06-30-08
19.46
**7-1-08 to 12-31-08
17.51

* In 1999, the Board changed the Regular Interest Rate credited to member accounts to an amount equal to PERSI's net investment return rate. The rate for each calendar year is based on the annual net rate of return at the end of the previous fiscal year (June 30). The interest rate will change January 1 of each year based on investment performance for the fiscal year ending the previous June 30.

**At the October 2007 PERSI board meeting, the board adopted a rule change to modify the method by which the regular interest rate is calculated. The proposed change will be reviewed by the 2008 legislature, and if approved, will become effective July 1, 2008. The change makes the interest rate the greater of 90% of the rate of return on the PERSI fund net of all expenses for the last fiscal year or 1%. If the legislature approves, the rate will change to 17.51% on July 1, 2008.

If the investment return for any fiscal year is less than the yearly average of 90-day Treasury Bills, regular interest will be at least equal to that T-bill average. Previously, the interest rate was based on the rate paid by local banks on one and two year certificates of deposits with a $5,000 minimum balance.

Retirement Systems That Have Joined PERSI
Retirement Systems That Have Joined PERSI Date Entered
PERSI
7-1-65
Old Teacher's Retirement System
7-1-67
Boise City Police Retirement Fund
3-1-66
Idaho Falls Police Retirement Fund
10-1-74
Firemen's Retirement Fund
10-1-80
PERSI Cost of Living Adjustments (COLAs)
Dates Rate
7-1-1969 Various rates according to date of retirement
1-1-1970 3.0%
1-1-1971 3.0
1-1-1972 3.0
1-1-1973 3.0
1-1-1974 3.0
1-1-1975 3.0
1-1-1976 3.0
1-1-1977 6.0 if last contributed prior to 1-1-76; 1976 retiree 1.053
1-1-1978 6.0
1-1-1979 6.0
1-1-1980 6.0
1-1-1981 6.0
1-1-1982 6.0
1-1-1983 5.1
1-1-1984 2.9
1-1-1985 4.2
1-1-1986 1.0
3-1-1987 1.5
3-1-1988 1.0
3-1-1989 1.0
3-1-1990 4.7
3-1-1991 5.6
3-1-1992 3.8*
3-1-1993 3.1**
3-1-1994 2.8***
3-1-1995 2.9
3-1-1996 2.6
3-1-1997 2.9
3-1-1998 2.2
3-1-1999 1.6****
3-1-2000 2.3
3-1-2001 3.4
3-1-2002 2.7
3-1-2003 1.0
3-1-2004 2.2
3-1-2005 2.7*****
3-1-2006 3.6
3-1-2007 3.8

Note: Starting 1-1-80 and to date, if the last contribution was in the prior year the COLA is apportioned to the number of months. See formulas.

* There was also a retro-COLA to bring all retirees who retired in 1974 or before, up to a minimum of 70% C.P.I. purchasing power.

** There was also a retro-COLA to bring all retirees who retired in 1979 or before, up to a minimum of 80% C.P.I. purchasing power.

*** There was also a retro-COLA to bring all retirees who retired on or before December 31, 1981 to a minimum of 90% C.P.I. purchasing power.

**** There was also a retro-COLA to bring all retirees who retired on or before January 31, 1989 to 100% C.P.I. purchasing power.

***** There was also a retro-COLA to bring all retirees whose date of last contribution was before March 1, 2003, to 100% C.P.I. purchasing power.

Optional Retirement Plans (ORP)
3.03% 3.83%
0501 – Board of Education J435 – College of Southern Idaho
0511 – Lewis-Clark State College J436 – North Idaho College
0512 – Boise State University 0504 – Eastern Idaho Technical College
0513 – Idaho State University  
0514 – University of Idaho  
   
Firemen's Retirement Fund (FRF)
Fireman Option Fireman Class Definition
One
A
 Retire under statewide average salary
Two
B
 Hired before 7/1/76 and retired under their individual average salaries
Two
B
 Hired 7/1/76 and later. Prior to 4/1/90 were Class C
N/A
D
 Under PERSI
N/A
E
 Under PERSI
FRF Employer Contribution Rates Classes A, B & C
Date Class Total Rate % Normal PERSI Rate % Excess Merger cost Rate % Additional Employer Rate % Employer Social Security Rate %
7/1/04–current
A,B
36.62
10.73
17.24
1.00
7.65
7/1/03–6/30/04
A,B
36.00
10.11
17.24
1.00
7.65
11/1/97–6/30/03
A,B
35.90
10.01
17.24
1.00
7.65
10/1/94–10/31/97 (2)
A,B
35.90
11.85
15.40
1.00
7.65
10/1/93–9/30/94 (1)
A,B
35.90
10.87
16.38
1.00
7.65
7/1/93–9/30/93
A,B
35.90
9.99
17.26
1.00
7.65
1/1/93–6/30/93
A,B
35.90
9.75
17.50
1.00
7.65
10/1/92–12/31/92
A,B
41.74
9.75
23.34
1.00
7.65
4/1/90–9/30/92 *
A,B
41.74
8.89
24.20
1.00
7.65
1/1/90–3/31/90
A,B,C
41.74
8.89
24.20
1.00
7.65
1/1/88–12/31/89
A,B,C
41.60
8.89
24.20
1.00
7.51
1/1/86–12/31/87
A,B,C
41.24
8.89
24.20
1.00
7.15
10/1/85–12/31/85
A,B,C
41.14
8.89
24.20
1.00
7.05
1/1/85–9/30/85
A,B,C
41.38
8.82
24.51
1.00
7.05
10/1/84–12/31/84
A,B,C
41.33
8.82
24.51
1.00
7.00
1/1/84–9/30/84
A,B,C
38.88
8.75
22.13
1.00
7.00
10/1/83–12/31/83
A,B,C
38.58
8.75
22.13
1.00
6.70
3/1/83–9/30/83
A,B,C
24.71
8.75
8.26
1.00
6.70
10/1/82–2/28/83
A,B,C
25.09
9.05
8.34
1.00
6.70
1/1/82–9/30/82
A,B,C
27.20
9.50
10.00
1.00
6.70
1/1/81–12/31/81
A,B,C
27.15
9.50
10.00
1.00
6.65
10/1/80–12/31/80
A,B,C
26.63
9.50
10.00
1.00
6.13

* Class C merged with Class B, no rate change
(1) Rule 120.03a—1993 retirement rules
(2) Rule 59.01.03.027.01

FRF Employer Contribution Rates Class D
Date Class Total Rate % Normal PERSI Rate % Excess Merger Cost Rate %
7/1/04–current
D
27.97
10.73
17.24
7/1/03–6/30/04
D
27.35
10.11
17.24
11/1/97–6/30/03
D
27.25
10.01
17.24
10/1/94–10/31/97
D
27.25
11.85
15.40 (4)
10/1/93–9/30/94
D
27.25
10.87
16.38 (3)
7/1/93–9/30/93
D
27.25
9.99
17.26
1/1/93–6/30/93
D
27.25
9.75
17.50
10/1/92–12/31/92
D
33.09
9.75
23.34
10/1/85–9/30/92
D
33.09
8.89
24.20
10/1/84–9/30/85
D
33.33
8.82
24.51
10/1/83–9/30/84
D
33.88
8.75
22.13
3/1/83–9/30/83
D
17.01
8.75
8.26
10/1/82–2/28/83
D
17.39
9.05
8.34
10/1/80–9/30/82
D
19.50
9.50
10.00

(3) Rule 120.03b—1993 retirement rules 59.01.03.027.01

(4) Rule  59.01.03.027.02

FRF Employer Contribution Rates Class E
Date Class Total Rate % Normal PERSI Rate % Excess Merger Cost Rate %
7/1/04–current
E
27.63
10.39
17.24
7/1/03–6/30/04
E
27.01
9.77
17.24
FRF Employee Contribution Rate

Firefighters' Retirement Fund (FRF) Option I (Class A)
Effective October 1, 2007, the contribution rate for Option I (Class A) firefighters is $592.69 per month. This is 11.45% of $5,176.37, the statewide average firefighter's salary for the 12-month period ending June 30, 2007.

Firefighters' Retirement Fund (FRF) Option II (Class B)
The current rate for Option II (Class B) firefighters is 11.45% of the individual's average salary for the 12-month period ending June 30, 2007.

PERSI Class D (PERSI firefighter hired on or after October 1, 1980 and employed by a city or fire district that employs or has employed paid firefighters in the FRF fund)
The PERSI firefighters' Class D employee contribution rate is 7.67% of their own actual salary. This is the PERSI Class 2 rate.

PERSI Class E (a general member employed by a city fire department or fire district that employs or has employed paid firefighters in the FRF fund)
The PERSI firefighters' Class E (general members employed by a City or Fire District) employee contribution rate is 6.23% of their own actual salary. This is the PERSI Class 1 rate.

FRF Cost of Living Raises
Date Retired Prior to 7/1/78 Class A & B Hired before 7/1/78 Class C Hired After 6/30/78 Year Ending Final Average Salary
1-1-2008
4.33
4.33
6-2007
5,176.37
1-1-2007
2.42
2.42
6-2006
4,961.68
1-1-2006
4.36
4.36
6-2005
4,844.38
1-1-2005
4.33
4.33
6-2004
4,641.89
1-1-2004
2.56
2.56
8-2003
4,449.09
1-1-2003
4.43
4.43
8-2002
4,338.00
1-1-2002
1.51
1.51
8-2001
4,153.79
1-1-2001
7.55
7.55
8-2000
4,092.18
1-1-2000
3.33
3.33
8-1999
3,804.90
1-1-1999
3.65
3.65
8-1998
3,682.31
1-1-1998
5.00
5.0
8-1997
3,552.53
1-1-1997
3.99
3.99
8-1996
3,383.44
1-1-1996
3.54
3.54
8-1995
3,253.49
1-1-1995
5.41
5.41
8-1994
3,142.11
1-1-1994
7.15
7.15
8-1993
2,980.71
1-1-1993
4.32
4.32
8-1992
2,781.75
1-1-1992
4.52
4.52
8-1991
2,666.48
1-1-1991
6.82
6.82
8-1990
2,551.09
4-1-1990
5.12
5.12
no class C
8-1989
2,388.14
1-1-1990
5.12
5.12
3.00
8-1988
2,272.62
1-1-1989
5.70
5.70
3.00
8-1987
2,150.50
1-1-1988
3.70
3.70
3.00
8-1986
2,074.40
1-1-1987
4.50
4.50
3.00
8-1985
1,984.70
1-1-1986
4.80
4.80
3.00
8-1984
1,893.80
1-1-1985
3.74
3.74
3.00
8-1983
1,825.84
1-1-1984
5.08
5.08
3.00
8-1982
1,739.08
1-1-1983
8.94
3.00**
3.00
8-1981
1,596.64
1-1-1982
14.05
3.00
3.00
1-1-1981
10.90
3.00
3.00
1-1-1980
6.98
3.00
3.00
1-1-1979
6.76
3.00
3.00

* Class C Firemen merged with Class B 4-1-90 - no rate change.

** Those who retired after June 30, 1978 (Class A and B) received 3% COLA ceiling until Supreme Court decision June, 1983. At that time, a lump sum adjustment to Statewide Average Fireman COLA was made. No apportionment of months was involved.

Note: – Class A retiring on Statewide Average Salary between date of October 1 and December 31 do not get a COLA the subsequent January 1 because they retired under latest Statewide Average.
– Class B retiring up to December 31 of any year do get a COLA on subsequent January 1.
– Interest accrual on FRF accounts began on July 1, 1991.

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