Idaho Administrative Code › Title IDAPA 59 - PERSI (Public Employee Retirement System of Idaho) › Rule 59.01.01 - RULES FOR THE PUBLIC EMPLOYEE RETIREMENT SYSTEM OF IDAHO (PERSI) › Subchapter F - PERSI RETIREMENT RULES › Section 59.01.01.544 - ACTUARIAL ASSUMPTION TABLES

Current through August 31, 2023
The actuarial tables used for determining optional and early retirement benefits are as follows:
TABLE A -- PAGE 1
PUBLIC EMPLOYEE RETIREMENT SYSTEM OF IDAHO EARLY RETIREMENT FACTORS
If the date of last contribution is prior to 10/1/92
Months
Years
0
1
2
3
4
5
6
7
8
9
10
0
1.00
.970
.940
.910
.880
.850
.770
.690
.610
.530
.450
1
.998
.968
.938
.908
.878
.843
.763
.683
.603
.523
2
.995
.965
.935
.905
.875
.837
.757
.677
.597
.517
3
.993
.963
.933
.903
.873
.830
.750
.670
.590
.510
4
.990
.960
.930
.900
.870
.823
.743
.663
.583
.503
5
.988
.958
.928
.898
.868
.817
.737
.657
.577
.497
6
.985
.955
.925
.895
.865
.810
.730
.650
.570
.490
7
.983
.953
.923
.893
.863
.803
.723
.643
.563
.483
8
.980
.950
.920
.890
.860
.797
.717
.637
.557
.477
9
.978
.948
.918
.888
.858
.790
.710
.630
.550
.470
10
.975
.945
.915
.885
.855
.783
.703
.623
.543
.463
11
.973
.943
.913
.883
.853
.777
.697
.617
.537
.457
First sixty months reduction: 0.2500% Next sixty months reduction: 0.6667% (3-31-22)
TABLE A -- PAGE 2
PUBLIC EMPLOYEE RETIREMENT SYSTEM OF IDAHO EARLY RETIREMENT FACTORS
If the date of last contribution is on or after 10/1/92 but prior to 10/1/93
Months
Years
0
1
2
3
4
5
6
7
8
9
10
0
1.00
.970
.940
.910
.880
.850
.777
.705
.632
.560
.487
1
.998
.968
.938
.908
.878
.844
.771
.699
.626
.554
2
.995
.965
.935
.905
.875
.838
.765
.693
.620
.548
3
.993
.963
.933
.903
.873
.832
.759
.687
.614
.542
4
.990
.960
.930
.900
.870
.826
.753
.681
.608
.536
5
.988
.958
.928
.898
.868
.820
.747
.675
.602
.530
6
.985
.955
.925
.895
.865
.814
.741
.669
.596
.524
7
.983
.953
.923
.893
.863
.808
.735
.663
.590
.518
8
.980
.950
.920
.890
.860
.802
.729
.657
.584
.512
9
.978
.948
.918
.888
.858
.796
.723
.651
.578
.506
10
.975
.945
.915
.885
.855
.790
.717
.645
.572
.500
11
.973
.943
.913
.883
.853
.784
.711
.639
.566
.494
First sixty months reduction: 0.2500% Next sixty months reduction: 0.6042% (3-31-22)
TABLE A -- PAGE 3
PUBLIC EMPLOYEE RETIREMENT SYSTEM OF IDAHO EARLY RETIREMENT FACTORS
If the date of last contribution is on or after 10/1/93 but prior to 10/1/94
Months
Years
0
1
2
3
4
5
6
7
8
9
10
0
1.00
.970
.940
.910
.880
.850
.785
.720
.655
.590
.525
1
.998
.968
.938
.908
.878
.845
.780
.715
.650
.585
2
.995
.965
.935
.905
.875
.839
.774
.709
.644
.579
3
.993
.963
.933
.903
.873
.834
.769
.704
.639
.574
4
.990
.960
.930
.900
.870
.828
.763
.698
.633
.568
5
.988
.958
.928
.898
.868
.823
.758
.693
.628
.563
6
.985
.955
.925
.895
.865
.817
.752
.687
.622
.557
7
.983
.953
.923
.893
.863
.812
.747
.682
.617
.552
8
.980
.950
.920
.890
.860
.807
.742
.677
.612
.547
9
.978
.948
.918
.888
.858
.801
.736
.671
.606
.541
10
.975
.945
.915
.885
.855
.796
.731
.666
.601
.536
11
.973
.943
.913
.883
.853
.790
.725
.660
.595
.530
First sixty months reduction: 0.2500% Next sixty months reduction: 0.5417% (3-31-22)
TABLE A -- PAGE 4
PUBLIC EMPLOYEE RETIREMENT SYSTEM OF IDAHO EARLY RETIREMENT FACTORS
Date of last contribution is on or after 10/1/94 or later
Months
Years
0
1
2
3
4
5
6
7
8
9
10
0
1.0
.970
.940
.910
.880
.850
.792
.735
.677
.620
.562
1
.998
.968
.938
.908
.878
.845
.788
.730
.673
.615
2
.995
.965
.935
.905
.875
.840
.783
.725
.668
.610
3
.993
.963
.933
.903
.873
.836
.778
.721
.663
.606
4
.990
.960
.930
.900
.870
.831
.773
.716
.658
.601
5
.988
.958
.928
.898
.868
.826
.769
.711
.654
.596
6
.985
.955
.925
.895
.865
.821
.764
.706
.649
.591
7
.983
.953
.923
.893
.863
.816
.759
.701
.644
.586
8
.980
.950
.920
.890
.860
.812
.754
.697
.639
.582
9
.978
.948
.918
.888
.858
.807
.749
.692
.634
.577
10
.975
.945
.915
.885
.855
.802
.745
.687
.630
.572
11
.973
.943
.913
.883
.853
.797
.740
.682
.625
.567
(3-31-22)
TABLE B -- Page 1
PUBLIC EMPLOYEE RETIREMENT SYSTEM OF IDAHO RETIREMENT REDUCTION FACTORS FOR OPTIONS 3 AND 4 AND CERTAIN DEATH BENEFITS
Options 3 and 4: Years and Months Until Member Would Be Social Security Retirement Age Death Benefits: Additional Years and Months Until Member Would Qualify for an Unreduced Service Retirement Allowance AFTER Applying Table A factors
Months
Years
0
1
2
3
4
5
6
7
8
9
10
0
1.00
.923
.853
.787
.727
.671
.620
.572
.528
.488
.451
1
.993
.917
.847
.782
.722
.667
.616
.568
.525
.485
2
.987
.911
.841
.777
.717
.662
.612
.565
.521
.481
3
.980
.905
.836
.772
.713
.658
.608
.561
.518
.478
4
.974
.899
.830
.767
.708
.654
.604
.557
.515
.475
5
.967
.893
.825
.762
.703
.649
.600
.554
.511
.472
6
.961
.887
.819
.756
.699
.645
.596
.550
.508
.469
7
.955
.881
.814
.751
.694
.641
.592
.546
.504
.466
8
.948
.876
.808
.746
.689
.636
.588
.543
.501
.463
9
.942
.870
.803
.742
.685
.632
.584
.539
.498
.460
10
.936
.864
.798
.737
.680
.628
.580
.535
.494
.457
11
.930
.858
.793
.732
.676
.624
.576
.532
.491
.454
(3-31-22)
TABLE B -- Page 2
PUBLIC EMPLOYEE RETIREMENT SYSTEM OF IDAHO RETIREMENT REDUCTION FACTORS FOR OPTIONS 3 AND 4 AND CERTAIN DEATH BENEFITS
Options 3 and 4: Years and Months Until Member Would Be Social Security Retirement Age Death Benefits: Additional Years and Months Until Member Would Qualify for an Unreduced Service Retirement Allowance AFTER Applying Table A factors
Months
Years
10
11
12
13
14
15
16
17
18
19
20
0
.451
.416
.384
.355
.327
.302
.279
.258
.238
.220
.203
1
.448
.413
.382
.352
.325
.300
.277
.256
.236
.218
2
.445
.411
.379
.350
.323
.298
.276
.254
.235
.217
3
.442
.408
.377
.348
.321
.296
.274
.253
.233
.215
4
.439
.405
.374
.345
.319
.294
.272
.251
.232
.214
5
.436
.402
.372
.343
.317
.293
.270
.249
.230
.213
6
.433
.400
.369
.341
.315
.291
.268
.248
.229
.211
7
.430
.397
.367
.339
.313
.289
.267
.246
.227
.210
8
.427
.394
.364
.336
.311
.287
.265
.244
.226
.208
9
.424
.392
.362
.334
.308
.285
.263
.243
.224
.207
10
.422
.389
.359
.332
.306
.283
.261
.241
.223
.206
11
.419
.387
.357
.330
.304
.281
.260
.240
.221
.204
(3-31-22)
TABLE B -- Page 3
PUBLIC EMPLOYEE RETIREMENT SYSTEM OF IDAHO RETIREMENT REDUCTION FACTORS FOR OPTIONS 3 AND 4 AND CERTAIN DEATH BENEFITS
Options 3 and 4: Years and Months Until Member Would Be Social Security Retirement Age Death Benefits: Additional Years and Months Until Member Would Qualify for an Unreduced Service Retirement Allowance AFTER Applying Table A Factors
Months
Years
20
21
22
23
24
25
0
.203
.187
.173
.160
.148
.136
1
.202
.186
.172
.159
.147
.135
2
.200
.185
.171
.158
.146
.134
3
.199
.184
.170
.157
.145
.134
4
.198
.183
.169
.156
.144
.133
5
.196
.181
.167
.155
.143
.132
6
.195
.180
.166
.154
.142
.131
7
.194
.179
.165
.153
.141
.130
8
.192
.178
.164
.152
.140
.129
9
.191
.177
.163
.151
.139
.128
10
.190
.175
.162
.150
.138
.127
11
.189
.174
.161
.149
.137
.127
(3-31-22)
TABLE C -- Page 1
PUBLIC EMPLOYEE RETIREMENT SYSTEM OF IDAHO CONTINGENT ANNUITANT FACTORS
For persons retiring before July 1, 1995
Age Difference in Years
Factors
Option 1
Option 2
15 *
0.600
0.750
14
0.610
0.758
13
0.621
0.766
12
0.631
0.775
11
0.642
0.782
Member
10
0.652
0.789
Older
9
0.663
0.797
Than
8
0.674
0.804
Contingent Annuitant
7
0.685
0.812
6
0.697
0.821
5
0.708
0.830
4
0.720
0.838
3
0.732
0.846
2
0.746
0.855
1
0.762
0.865
0
0.780
0.876
1
0.799
0.887
2
0.823
0.902
3
0.836
0.910
4
0.847
0.918
5
0.856
0.924
Member
6
0.865
0.930
Younger
7
0.873
0.935
Than
8
0.881
0.940
Contingent Annuitant
9
0.888
0.944
10
0.897
0.949
11
0.906
0.955
12
0.916
0.961
13
0.926
0.967
14
0.934
0.969
15 or more
0.940
0.970
*For each year the member is more than fifteen (15) years older than the contingent annuitant subtract .01 from the factor for Option 1 and subtract .006 from the factor for Option 2. (3-31-22)
TABLE C -- Page 2
PUBLIC EMPLOYEE RETIREMENT SYSTEM OF IDAHO CONTINGENT ANNUITANT FACTORS
For persons retiring on or after July 1, 1995
Age Difference in Years
Factors
Option 1
Option 2
15 *
0.690
0.810
14
0.700
0.816
13
0.710
0.822
12
0.720
0.828
11
0.730
0.834
Member
10
0.735
0.840
Older
9
0.740
0.846
Than
8
0.745
0.852
Contingent Annuitant
7
0.750
0.858
6
0.755
0.864
5
0.760
0.870
4
0.765
0.876
3
0.770
0.882
2
0.785
0.888
1
0.800
0.894
0
0.815
0.900
1
0.835
0.915
2
0.855
0.925
3
0.875
0.935
4
0.890
0.945
5
0.900
0.950
Member
6
0.910
0.955
Younger
7
0.920
0.960
Than
8
0.930
0.965
Contingent Annuitant
9
0.940
0.967
10
0.944
0.969
11
0.946
0.971
12
0.948
0.973
13
0.950
0.975
14
0.952
0.977
15 or more
0.954
0.979
*For each year the member is more than fifteen (15) years older than the contingent annuitant subtract .01 from the factor for Option 1 and subtract .006 from the factor for Option 2. (Amended 96) (3-31-22)
TABLE C -- Page 3
PUBLIC EMPLOYEE RETIREMENT SYSTEM OF IDAHO CONTINGENT ANNUITANT FACTORS
For persons retiring on or after July 1,2011
Age Difference in Years
Factors
Option 1
Option 2
15 *
0.729
0.851
14
0.736
0.856
13
0.743
0.861
12
0.750
0.866
11
0.757
0.871
Member
10
0.764
0.876
Older
9
0.771
0.881
Than
8
0.778
0.886
Contingent Annuitant
7
0.785
0.891
6
0.792
0.896
5
0.799
0.902
4
0.808
0.908
3
0.818
0.914
2
0.833
0.920
1
0.848
0.926
0
0.863
0.932
1
0.875
0.938
2
0.887
0.944
3
0.895
0.949
4
0.902
0.954
5
0.909
0.959
Member
6
0.916
0.963
Younger
7
0.923
0.966
Than
8
0.930
0.968
Contingent Annuitant
9
0.940
0.970
10
0.944
0.972
11
0.946
0.974
12
0.948
0.976
13
0.950
0.978
14
0.952
0.980
15 or more
0.954
0.982
*For each year the member is more than fifteen (15) years older than the contingent annuitant subtract .01 from the factor for Option 1 and subtract .01 from the factor for Option 2. (3-31-22)