diff --git a/changelog.d/ut-ccap-copay-table4-oct-2026.changed.md b/changelog.d/ut-ccap-copay-table4-oct-2026.changed.md
new file mode 100644
index 00000000000..ff53b72d86c
--- /dev/null
+++ b/changelog.d/ut-ccap-copay-table4-oct-2026.changed.md
@@ -0,0 +1 @@
+Utah CCAP copayment amounts and income group limits from the Table 4 edition effective October 1, 2026.
diff --git a/policyengine_us/parameters/gov/states/ut/dwf/ccap/copay/amount.yaml b/policyengine_us/parameters/gov/states/ut/dwf/ccap/copay/amount.yaml
index 867a8532389..8647d791feb 100644
--- a/policyengine_us/parameters/gov/states/ut/dwf/ccap/copay/amount.yaml
+++ b/policyengine_us/parameters/gov/states/ut/dwf/ccap/copay/amount.yaml
@@ -1,19 +1,23 @@
 description: Utah sets these monthly child care copayment amounts under the Child Care Assistance program.
 
-# Table 4, effective April 1, 2026. The 2020 entry is placed at
+# Table 4. The 2020-01-01 entry holds the April 1, 2026 edition at
 # PolicyEngine's backdating floor; earlier editions of Table 4 are not
-# encoded, so prior periods use this table as an approximation.
+# encoded, so prior periods use that table as an approximation. The
+# 2026-10-01 entry holds the October 1, 2026 edition.
 #
 # The copayment is a sliding scale by household size (2 through 12 or
 # more), countable income group (1 through 16, classified with
 # copay/income_limits), and the number of children receiving the subsidy
 # (one, two, or more than two). Group 1 (income at or below 100% of the
-# federal poverty level) has no copayment (R986-700-707(5)(a)). The
-# published table marks child-count columns that exceed the possible
-# number of children in the household size as n/a (household size 2: two
-# or more children; size 3: more than two); these cells repeat the
-# largest published column for that row so every lookup is defined, and
-# they never bind in practice.
+# federal poverty level) has no copayment (R986-700-707(5)(a)).
+#
+# Child-count columns that exceed the possible number of children in the
+# household size (household size 2: two or more children; size 3: more
+# than two) are printed as n/a in the April 2026 edition and as 0 in the
+# October 2026 edition. Neither the n/a nor the 0 is stored: in both
+# layers these structurally impossible cells repeat the row's largest
+# published column so every lookup is defined; they can never bind (a
+# two-person household cannot have two subsidized children).
 metadata:
   unit: currency-USD
   period: month
@@ -28,7 +32,11 @@ metadata:
     - Children receiving subsidy
   reference:
     - title: Utah DWS Table 4 - Child Care Income Eligibility and Co-Payment (effective April 1, 2026)
-      href: https://jobs.utah.gov/Infosource/eligibilitymanual/Tables,_Appendicies,_and_Charts/Tables,_Appendicies,_and_Charts/Table_4_-_Child_Care_Income_Eligibility_and_Co-Payment.htm
+      # Archived capture of the Infosource page, which Utah
+      # overwrites in place at each reissue of Table 4.
+      href: http://web.archive.org/web/20260901174900/https://jobs.utah.gov/Infosource/eligibilitymanual/Tables,_Appendicies,_and_Charts/Tables,_Appendicies,_and_Charts/Table_4_-_Child_Care_Income_Eligibility_and_Co-Payment.htm
+    - title: Utah DWS Table 4 - Child Care Income Eligibility and Co-Payment (effective October 1, 2026)
+      href: https://jobs.utah.gov/occ/provider/table1026.pdf#page=1
     - title: Utah Admin. Code R986-700-707(1)
       href: https://www.law.cornell.edu/regulations/utah/Utah-Admin-Code-R986-700-707
 
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 7:
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   16:
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 8:
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   15:
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   16:
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 9:
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   6:
     ONE:
       2020-01-01: 311
+      2026-10-01: 298
     TWO:
       2020-01-01: 330
+      2026-10-01: 316
     THREE_PLUS:
       2020-01-01: 349
+      2026-10-01: 335
   7:
     ONE:
       2020-01-01: 325
+      2026-10-01: 306
     TWO:
       2020-01-01: 345
+      2026-10-01: 325
     THREE_PLUS:
       2020-01-01: 365
+      2026-10-01: 344
   8:
     ONE:
       2020-01-01: 339
+      2026-10-01: 352
     TWO:
       2020-01-01: 360
+      2026-10-01: 374
     THREE_PLUS:
       2020-01-01: 381
+      2026-10-01: 396
   9:
     ONE:
       2020-01-01: 441
+      2026-10-01: 459
     TWO:
       2020-01-01: 463
+      2026-10-01: 482
     THREE_PLUS:
       2020-01-01: 485
+      2026-10-01: 505
   10:
     ONE:
       2020-01-01: 460
+      2026-10-01: 478
     TWO:
       2020-01-01: 483
+      2026-10-01: 502
     THREE_PLUS:
       2020-01-01: 506
+      2026-10-01: 526
   11:
     ONE:
       2020-01-01: 478
+      2026-10-01: 497
     TWO:
       2020-01-01: 502
+      2026-10-01: 522
     THREE_PLUS:
       2020-01-01: 526
+      2026-10-01: 547
   12:
     ONE:
       2020-01-01: 496
+      2026-10-01: 516
     TWO:
       2020-01-01: 521
+      2026-10-01: 542
     THREE_PLUS:
       2020-01-01: 546
+      2026-10-01: 568
   13:
     ONE:
       2020-01-01: 618
+      2026-10-01: 643
     TWO:
       2020-01-01: 643
+      2026-10-01: 669
     THREE_PLUS:
       2020-01-01: 669
+      2026-10-01: 696
   14:
     ONE:
       2020-01-01: 651
+      2026-10-01: 677
     TWO:
       2020-01-01: 678
+      2026-10-01: 705
     THREE_PLUS:
       2020-01-01: 705
+      2026-10-01: 733
   15:
     ONE:
       2020-01-01: 684
+      2026-10-01: 711
     TWO:
       2020-01-01: 712
+      2026-10-01: 741
     THREE_PLUS:
       2020-01-01: 741
+      2026-10-01: 771
   16:
     ONE:
       2020-01-01: 777
+      2026-10-01: 808
     TWO:
       2020-01-01: 807
+      2026-10-01: 839
     THREE_PLUS:
       2020-01-01: 837
+      2026-10-01: 870
diff --git a/policyengine_us/parameters/gov/states/ut/dwf/ccap/copay/income_limits.yaml b/policyengine_us/parameters/gov/states/ut/dwf/ccap/copay/income_limits.yaml
index f1e3e7b494d..ab24c3ba931 100644
--- a/policyengine_us/parameters/gov/states/ut/dwf/ccap/copay/income_limits.yaml
+++ b/policyengine_us/parameters/gov/states/ut/dwf/ccap/copay/income_limits.yaml
@@ -1,18 +1,31 @@
 description: Utah sets these monthly countable income upper limits for each copayment income group under the Child Care Assistance program.
 
-# Table 4, effective April 1, 2026. The 2020 entry is placed at
+# Table 4. The 2020-01-01 entry holds the April 1, 2026 edition at
 # PolicyEngine's backdating floor; earlier editions of Table 4 are not
-# encoded, so prior periods use this table as an approximation.
+# encoded, so prior periods use that table as an approximation. The
+# 2026-10-01 entry holds the October 1, 2026 edition.
 #
 # Each value is the inclusive upper bound of a countable income group;
 # income above a group's upper bound falls in the next group. Household
 # sizes run from 2 (the smallest possible unit, one parent and one child)
 # through 12, where the size 12 column covers households of 12 or more.
 # Group 16 is the maximum income range to qualify for child care
-# assistance (85% of the state median income). The published lower bound
-# of household size 5 group 3 reads 3,644.01, an apparent typo for
-# 3,664.01, since the size 5 group 2 upper bound is 3,664; only upper
-# bounds are encoded here.
+# assistance (85% of the state median income). The April 2026 edition's
+# published lower bound of household size 5 group 3 reads 3,644.01, an
+# apparent typo for 3,664.01, since the size 5 group 2 upper bound is
+# 3,664; only upper bounds are encoded here (the October 2026 edition
+# similarly prints the size 6 group 16 range as 10,940-11,445, omitting
+# the usual .01 lower-bound offset). The October 2026 size 10 group 16
+# bound is encoded as published (12,846), although the uniform steps of
+# the surrounding sizes (size 9: 12,225, size 11: 12,746, size 12:
+# 13,006) suggest 12,486 was intended; the group 16 bound only separates
+# group 15 from group 16 in ut_ccap_income_group, so the discrepancy has
+# no behavioral effect.
+#
+# The October 2026 edition also introduces entry and exit eligibility
+# thresholds (entry at group 6 for applications, exit at group 10 for
+# reviews, and open child care at group 16 between review cycles); that
+# structure is not yet modeled in ut_ccap_income_eligible.
 metadata:
   unit: currency-USD
   period: month
@@ -25,370 +38,550 @@ metadata:
     - Income group
   reference:
     - title: Utah DWS Table 4 - Child Care Income Eligibility and Co-Payment (effective April 1, 2026)
-      href: https://jobs.utah.gov/Infosource/eligibilitymanual/Tables,_Appendicies,_and_Charts/Tables,_Appendicies,_and_Charts/Table_4_-_Child_Care_Income_Eligibility_and_Co-Payment.htm
+      # Archived capture of the Infosource page, which Utah
+      # overwrites in place at each reissue of Table 4.
+      href: http://web.archive.org/web/20260901174900/https://jobs.utah.gov/Infosource/eligibilitymanual/Tables,_Appendicies,_and_Charts/Tables,_Appendicies,_and_Charts/Table_4_-_Child_Care_Income_Eligibility_and_Co-Payment.htm
+    - title: Utah DWS Table 4 - Child Care Income Eligibility and Co-Payment (effective October 1, 2026)
+      href: https://jobs.utah.gov/occ/provider/table1026.pdf#page=1
     - title: Utah Admin. Code R986-700-710(6)(d)
       href: https://www.law.cornell.edu/regulations/utah/Utah-Admin-Code-R986-700-710
 
 2:
   1:
     2020-01-01: 1_763
+    2026-10-01: 1_803
   2:
     2020-01-01: 2_082
+    2026-10-01: 2_140
   3:
     2020-01-01: 2_402
+    2026-10-01: 2_477
   4:
     2020-01-01: 2_722
+    2026-10-01: 2_814
   5:
     2020-01-01: 3_041
+    2026-10-01: 3_151
   6:
     2020-01-01: 3_361
+    2026-10-01: 3_468
   7:
     2020-01-01: 3_681
+    2026-10-01: 3_825
   8:
     2020-01-01: 4_001
+    2026-10-01: 4_162
   9:
     2020-01-01: 4_167
+    2026-10-01: 4_335
   10:
     2020-01-01: 4_334
+    2026-10-01: 4_509
   11:
     2020-01-01: 4_501
+    2026-10-01: 4_682
   12:
     2020-01-01: 4_667
+    2026-10-01: 4_855
   13:
     2020-01-01: 4_918
+    2026-10-01: 5_116
   14:
     2020-01-01: 5_168
+    2026-10-01: 5_376
   15:
     2020-01-01: 5_418
+    2026-10-01: 5_636
   16:
     2020-01-01: 5_668
+    2026-10-01: 5_896
 3:
   1:
     2020-01-01: 2_221
+    2026-10-01: 2_277
   2:
     2020-01-01: 2_610
+    2026-10-01: 2_686
   3:
     2020-01-01: 2_998
+    2026-10-01: 3_095
   4:
     2020-01-01: 3_387
+    2026-10-01: 3_504
   5:
     2020-01-01: 3_776
+    2026-10-01: 3_913
   6:
     2020-01-01: 4_165
+    2026-10-01: 4_284
   7:
     2020-01-01: 4_553
+    2026-10-01: 4_732
   8:
     2020-01-01: 4_942
+    2026-10-01: 5_141
   9:
     2020-01-01: 5_148
+    2026-10-01: 5_355
   10:
     2020-01-01: 5_354
+    2026-10-01: 5_570
   11:
     2020-01-01: 5_560
+    2026-10-01: 5_784
   12:
     2020-01-01: 5_766
+    2026-10-01: 5_998
   13:
     2020-01-01: 6_075
+    2026-10-01: 6_319
   14:
     2020-01-01: 6_383
+    2026-10-01: 6_641
   15:
     2020-01-01: 6_692
+    2026-10-01: 6_962
   16:
     2020-01-01: 7_001
+    2026-10-01: 7_283
 4:
   1:
     2020-01-01: 2_679
+    2026-10-01: 2_750
   2:
     2020-01-01: 3_137
+    2026-10-01: 3_231
   3:
     2020-01-01: 3_595
+    2026-10-01: 3_713
   4:
     2020-01-01: 4_052
+    2026-10-01: 4_194
   5:
     2020-01-01: 4_510
+    2026-10-01: 4_676
   6:
     2020-01-01: 4_968
+    2026-10-01: 5_100
   7:
     2020-01-01: 5_426
+    2026-10-01: 5_639
   8:
     2020-01-01: 5_883
+    2026-10-01: 6_120
   9:
     2020-01-01: 6_128
+    2026-10-01: 6_375
   10:
     2020-01-01: 6_374
+    2026-10-01: 6_630
   11:
     2020-01-01: 6_619
+    2026-10-01: 6_885
   12:
     2020-01-01: 6_864
+    2026-10-01: 7_140
   13:
     2020-01-01: 7_232
+    2026-10-01: 7_523
   14:
     2020-01-01: 7_599
+    2026-10-01: 7_905
   15:
     2020-01-01: 7_967
+    2026-10-01: 8_288
   16:
     2020-01-01: 8_335
+    2026-10-01: 8_670
 5:
   1:
     2020-01-01: 3_138
+    2026-10-01: 3_223
   2:
     2020-01-01: 3_664
+    2026-10-01: 3_777
   3:
     2020-01-01: 4_191
+    2026-10-01: 4_331
   4:
     2020-01-01: 4_718
+    2026-10-01: 4_885
   5:
     2020-01-01: 5_244
+    2026-10-01: 5_438
   6:
     2020-01-01: 5_771
+    2026-10-01: 5_916
   7:
     2020-01-01: 6_298
+    2026-10-01: 6_546
   8:
     2020-01-01: 6_825
+    2026-10-01: 7_100
   9:
     2020-01-01: 7_109
+    2026-10-01: 7_395
   10:
     2020-01-01: 7_393
+    2026-10-01: 7_691
   11:
     2020-01-01: 7_678
+    2026-10-01: 7_987
   12:
     2020-01-01: 7_962
+    2026-10-01: 8_283
   13:
     2020-01-01: 8_389
+    2026-10-01: 8_727
   14:
     2020-01-01: 8_815
+    2026-10-01: 9_170
   15:
     2020-01-01: 9_242
+    2026-10-01: 9_614
   16:
     2020-01-01: 9_668
+    2026-10-01: 10_058
 6:
   1:
     2020-01-01: 3_596
+    2026-10-01: 3_697
   2:
     2020-01-01: 4_192
+    2026-10-01: 4_323
   3:
     2020-01-01: 4_787
+    2026-10-01: 4_949
   4:
     2020-01-01: 5_383
+    2026-10-01: 5_575
   5:
     2020-01-01: 5_979
+    2026-10-01: 6_201
   6:
     2020-01-01: 6_575
+    2026-10-01: 6_732
   7:
     2020-01-01: 7_170
+    2026-10-01: 7_453
   8:
     2020-01-01: 7_766
+    2026-10-01: 8_079
   9:
     2020-01-01: 8_090
+    2026-10-01: 8_415
   10:
     2020-01-01: 8_413
+    2026-10-01: 8_752
   11:
     2020-01-01: 8_737
+    2026-10-01: 9_089
   12:
     2020-01-01: 9_060
+    2026-10-01: 9_425
   13:
     2020-01-01: 9_546
+    2026-10-01: 9_930
   14:
     2020-01-01: 10_031
+    2026-10-01: 10_435
   15:
     2020-01-01: 10_516
+    2026-10-01: 10_940
   16:
     2020-01-01: 11_002
+    2026-10-01: 11_445
 7:
   1:
     2020-01-01: 4_054
+    2026-10-01: 4_170
   2:
     2020-01-01: 4_610
+    2026-10-01: 4_755
   3:
     2020-01-01: 5_165
+    2026-10-01: 5_339
   4:
     2020-01-01: 5_721
+    2026-10-01: 5_924
   5:
     2020-01-01: 6_276
+    2026-10-01: 6_509
   6:
     2020-01-01: 6_832
+    2026-10-01: 6_885
   7:
     2020-01-01: 7_387
+    2026-10-01: 7_678
   8:
     2020-01-01: 7_943
+    2026-10-01: 8_262
   9:
     2020-01-01: 8_273
+    2026-10-01: 8_607
   10:
     2020-01-01: 8_604
+    2026-10-01: 8_951
   11:
     2020-01-01: 8_935
+    2026-10-01: 9_295
   12:
     2020-01-01: 9_266
+    2026-10-01: 9_640
   13:
     2020-01-01: 9_763
+    2026-10-01: 10_156
   14:
     2020-01-01: 10_259
+    2026-10-01: 10_672
   15:
     2020-01-01: 10_755
+    2026-10-01: 11_189
   16:
     2020-01-01: 11_252
+    2026-10-01: 11_705
 8:
   1:
     2020-01-01: 4_513
+    2026-10-01: 4_643
   2:
     2020-01-01: 5_028
+    2026-10-01: 5_187
   3:
     2020-01-01: 5_543
+    2026-10-01: 5_730
   4:
     2020-01-01: 6_058
+    2026-10-01: 6_273
   5:
     2020-01-01: 6_573
+    2026-10-01: 6_816
   6:
     2020-01-01: 7_089
+    2026-10-01: 7_038
   7:
     2020-01-01: 7_604
+    2026-10-01: 7_903
   8:
     2020-01-01: 8_119
+    2026-10-01: 8_446
   9:
     2020-01-01: 8_457
+    2026-10-01: 8_798
   10:
     2020-01-01: 8_796
+    2026-10-01: 9_150
   11:
     2020-01-01: 9_134
+    2026-10-01: 9_502
   12:
     2020-01-01: 9_472
+    2026-10-01: 9_854
   13:
     2020-01-01: 9_980
+    2026-10-01: 10_382
   14:
     2020-01-01: 10_487
+    2026-10-01: 10_910
   15:
     2020-01-01: 10_995
+    2026-10-01: 11_437
   16:
     2020-01-01: 11_502
+    2026-10-01: 11_965
 9:
   1:
     2020-01-01: 4_971
+    2026-10-01: 5_117
   2:
     2020-01-01: 5_446
+    2026-10-01: 5_619
   3:
     2020-01-01: 5_921
+    2026-10-01: 6_120
   4:
     2020-01-01: 6_396
+    2026-10-01: 6_622
   5:
     2020-01-01: 6_871
+    2026-10-01: 7_124
   6:
     2020-01-01: 7_346
+    2026-10-01: 7_191
   7:
     2020-01-01: 7_821
+    2026-10-01: 8_128
   8:
     2020-01-01: 8_296
+    2026-10-01: 8_630
   9:
     2020-01-01: 8_641
+    2026-10-01: 8_989
   10:
     2020-01-01: 8_987
+    2026-10-01: 9_349
   11:
     2020-01-01: 9_332
+    2026-10-01: 9_708
   12:
     2020-01-01: 9_678
+    2026-10-01: 10_068
   13:
     2020-01-01: 10_197
+    2026-10-01: 10_607
   14:
     2020-01-01: 10_715
+    2026-10-01: 11_147
   15:
     2020-01-01: 11_234
+    2026-10-01: 11_686
   16:
     2020-01-01: 11_752
+    2026-10-01: 12_225
 10:
   1:
     2020-01-01: 5_429
+    2026-10-01: 5_590
   2:
     2020-01-01: 5_864
+    2026-10-01: 6_539
   3:
     2020-01-01: 6_299
+    2026-10-01: 6_740
   4:
     2020-01-01: 6_733
+    2026-10-01: 6_941
   5:
     2020-01-01: 7_168
+    2026-10-01: 7_143
   6:
     2020-01-01: 7_603
+    2026-10-01: 7_344
   7:
     2020-01-01: 8_037
+    2026-10-01: 8_353
   8:
     2020-01-01: 8_472
+    2026-10-01: 8_813
   9:
     2020-01-01: 8_825
+    2026-10-01: 9_181
   10:
     2020-01-01: 9_178
+    2026-10-01: 9_548
   11:
     2020-01-01: 9_531
+    2026-10-01: 9_915
   12:
     2020-01-01: 9_884
+    2026-10-01: 10_282
   13:
     2020-01-01: 10_414
+    2026-10-01: 10_833
   14:
     2020-01-01: 10_943
+    2026-10-01: 11_384
   15:
     2020-01-01: 11_473
+    2026-10-01: 11_935
   16:
     2020-01-01: 12_002
+    2026-10-01: 12_846
 11:
   1:
     2020-01-01: 5_888
+    2026-10-01: 6_063
   2:
     2020-01-01: 6_282
+    2026-10-01: 6_675
   3:
     2020-01-01: 6_676
+    2026-10-01: 6_881
   4:
     2020-01-01: 7_071
+    2026-10-01: 7_086
   5:
     2020-01-01: 7_465
+    2026-10-01: 7_292
   6:
     2020-01-01: 7_860
+    2026-10-01: 7_497
   7:
     2020-01-01: 8_254
+    2026-10-01: 8_578
   8:
     2020-01-01: 8_649
+    2026-10-01: 8_997
   9:
     2020-01-01: 9_009
+    2026-10-01: 9_372
   10:
     2020-01-01: 9_369
+    2026-10-01: 9_747
   11:
     2020-01-01: 9_730
+    2026-10-01: 10_122
   12:
     2020-01-01: 10_090
+    2026-10-01: 10_496
   13:
     2020-01-01: 10_630
+    2026-10-01: 11_059
   14:
     2020-01-01: 11_171
+    2026-10-01: 11_621
   15:
     2020-01-01: 11_712
+    2026-10-01: 12_183
   16:
     2020-01-01: 12_252
+    2026-10-01: 12_746
 12:
   1:
     2020-01-01: 6_346
+    2026-10-01: 6_537
   2:
     2020-01-01: 6_700
+    2026-10-01: 6_811
   3:
     2020-01-01: 7_054
+    2026-10-01: 7_021
   4:
     2020-01-01: 7_408
+    2026-10-01: 7_231
   5:
     2020-01-01: 7_763
+    2026-10-01: 7_440
   6:
     2020-01-01: 8_117
+    2026-10-01: 7_650
   7:
     2020-01-01: 8_471
+    2026-10-01: 8_803
   8:
     2020-01-01: 8_825
+    2026-10-01: 9_181
   9:
     2020-01-01: 9_193
+    2026-10-01: 9_563
   10:
     2020-01-01: 9_560
+    2026-10-01: 9_946
   11:
     2020-01-01: 9_928
+    2026-10-01: 10_328
   12:
     2020-01-01: 10_296
+    2026-10-01: 10_711
   13:
     2020-01-01: 10_847
+    2026-10-01: 11_284
   14:
     2020-01-01: 11_399
+    2026-10-01: 11_858
   15:
     2020-01-01: 11_951
+    2026-10-01: 12_432
   16:
     2020-01-01: 12_502
+    2026-10-01: 13_006
diff --git a/policyengine_us/tests/policy/baseline/gov/states/ut/dwf/ccap/copay/ut_ccap_copay.yaml b/policyengine_us/tests/policy/baseline/gov/states/ut/dwf/ccap/copay/ut_ccap_copay.yaml
index 078cef732ec..105ca474246 100644
--- a/policyengine_us/tests/policy/baseline/gov/states/ut/dwf/ccap/copay/ut_ccap_copay.yaml
+++ b/policyengine_us/tests/policy/baseline/gov/states/ut/dwf/ccap/copay/ut_ccap_copay.yaml
@@ -1,9 +1,11 @@
 # Tests for ut_ccap_copay (SPMUnit, MONTH, USD).
-# Table 4 (effective April 1, 2026): the monthly copayment is a sliding
-# scale by household size (2-12+), countable income group (1-16), and the
-# number of children receiving the subsidy (one, two, or more than two).
-# Group 1 has no copayment (R986-700-707(5)(a)). Countable income is set
-# directly to pin the income group.
+# Table 4: the monthly copayment is a sliding scale by household size
+# (2-12+), countable income group (1-16), and the number of children
+# receiving the subsidy (one, two, or more than two). Group 1 has no
+# copayment (R986-700-707(5)(a)). Countable income is set directly to pin
+# the income group. Periods in 2026 use the April 1, 2026 edition
+# (encoded at the 2020-01-01 backdating floor); periods from October 2026
+# use the October 1, 2026 edition (the 2027-01 cases below).
 
 - name: Case 1, size 2 in income group 1 pays no copayment.
   period: 2026-01
@@ -274,3 +276,187 @@
     # The padded two-child column repeats the one-child value, so the
     # copayment matches Case 2: size 2, group 2 -> 18.
     ut_ccap_copay: 18
+
+- name: Case 12, October 2026 table, size 3 in income group 4 with two children.
+  period: 2027-01
+  absolute_error_margin: 0.01
+  input:
+    people:
+      person1:
+        age: 30
+      person2:
+        age: 3
+      person3:
+        age: 6
+    spm_units:
+      spm_unit:
+        members: [person1, person2, person3]
+        ut_ccap_countable_income: 3_300  # group 4 (3,095.01-3,504)
+    households:
+      household:
+        members: [person1, person2, person3]
+        state_code: UT
+  output:
+    # October 1, 2026 edition: size 3, group 4, two children -> 101
+    # (up from 97 in the April 2026 edition).
+    ut_ccap_copay: 101
+
+- name: Case 13, October 2026 table, size 2 at the group 2 upper bound.
+  period: 2027-01
+  absolute_error_margin: 0.01
+  input:
+    people:
+      person1:
+        age: 30
+      person2:
+        age: 3
+    spm_units:
+      spm_unit:
+        members: [person1, person2]
+        ut_ccap_countable_income: 2_140  # inclusive group 2 upper bound
+    households:
+      household:
+        members: [person1, person2]
+        state_code: UT
+  output:
+    # Income exactly at the size 2 group 2 bound (2,140) stays in group 2:
+    # one child -> 18.
+    ut_ccap_copay: 18
+
+- name: Case 14, October 2026 table, size 2 just above the group 2 bound.
+  period: 2027-01
+  absolute_error_margin: 0.01
+  input:
+    people:
+      person1:
+        age: 30
+      person2:
+        age: 3
+    spm_units:
+      spm_unit:
+        members: [person1, person2]
+        ut_ccap_countable_income: 2_141  # group 3 (2,140.01-2,477)
+    households:
+      household:
+        members: [person1, person2]
+        state_code: UT
+  output:
+    # One dollar above the group 2 bound moves to group 3: one child -> 43
+    # (up from 42 in the April 2026 edition).
+    ut_ccap_copay: 43
+
+- name: Case 15, October 2026 table, income above the group 16 bound uses the group 16 copayment.
+  period: 2027-01
+  absolute_error_margin: 0.01
+  input:
+    people:
+      person1:
+        age: 30
+      person2:
+        age: 3
+    spm_units:
+      spm_unit:
+        members: [person1, person2]
+        ut_ccap_countable_income: 6_000  # above the size 2 group 16 bound of 5,896
+    households:
+      household:
+        members: [person1, person2]
+        state_code: UT
+  output:
+    # Same situation as Case 9 but on the October 2026 layer: size 2,
+    # group 16, one child -> 366 (up from 352).
+    ut_ccap_copay: 366
+
+- name: Case 16, October 2026 table, size 4 in income group 16 with three children.
+  period: 2027-01
+  absolute_error_margin: 0.01
+  input:
+    people:
+      person1:
+        age: 30
+      person2:
+        age: 1
+      person3:
+        age: 4
+      person4:
+        age: 9
+    spm_units:
+      spm_unit:
+        members: [person1, person2, person3, person4]
+        ut_ccap_countable_income: 8_500  # group 16 (8,288.01-8,670)
+    households:
+      household:
+        members: [person1, person2, person3, person4]
+        state_code: UT
+  output:
+    # October 1, 2026 edition: size 4, group 16, more than two children
+    # -> 580 (up from 558 in the April 2026 edition).
+    ut_ccap_copay: 580
+
+- name: Case 17, October 2026 table, a structurally impossible size 2 two-child cell uses the padded one-child value.
+  period: 2027-01
+  absolute_error_margin: 0.01
+  input:
+    people:
+      person1:
+        age: 30
+      person2:
+        age: 3
+    spm_units:
+      spm_unit:
+        members: [person1, person2]
+        ut_ccap_countable_income: 2_000  # group 2 (1,803.01-2,140)
+        # The October 2026 edition prints 0 in the impossible size 2
+        # multi-child cells (where the April edition printed n/a); the
+        # child count group is forced directly to reach the padded cell.
+        ut_ccap_child_count_group: TWO
+    households:
+      household:
+        members: [person1, person2]
+        state_code: UT
+  output:
+    # As in Case 11, the padded two-child column repeats the one-child
+    # value on the October 2026 layer: size 2, group 2 -> 18.
+    ut_ccap_copay: 18
+
+- name: Case 18, October 2026 table, size 12 in income group 16 with three or more children.
+  period: 2027-01
+  absolute_error_margin: 0.01
+  input:
+    people:
+      person1:
+        age: 40
+      person2:
+        age: 38
+      person3:
+        age: 12
+      person4:
+        age: 11
+      person5:
+        age: 10
+      person6:
+        age: 9
+      person7:
+        age: 8
+      person8:
+        age: 7
+      person9:
+        age: 6
+      person10:
+        age: 5
+      person11:
+        age: 4
+      person12:
+        age: 3
+    spm_units:
+      spm_unit:
+        members: [person1, person2, person3, person4, person5, person6, person7, person8, person9, person10, person11, person12]
+        ut_ccap_countable_income: 12_800  # group 16 (12,432.01-13,006)
+    households:
+      household:
+        members: [person1, person2, person3, person4, person5, person6, person7, person8, person9, person10, person11, person12]
+        state_code: UT
+  output:
+    # The far corner of the October 2026 table: size 12, group 16, more
+    # than two children -> 870 (up from 837 in the April 2026 edition).
+    ut_ccap_copay: 870
diff --git a/policyengine_us/tests/policy/baseline/gov/states/ut/dwf/ccap/copay/ut_ccap_income_group.yaml b/policyengine_us/tests/policy/baseline/gov/states/ut/dwf/ccap/copay/ut_ccap_income_group.yaml
index 745b56d2216..b277ef8b784 100644
--- a/policyengine_us/tests/policy/baseline/gov/states/ut/dwf/ccap/copay/ut_ccap_income_group.yaml
+++ b/policyengine_us/tests/policy/baseline/gov/states/ut/dwf/ccap/copay/ut_ccap_income_group.yaml
@@ -1,9 +1,11 @@
 # Tests for ut_ccap_income_group (SPMUnit, MONTH, int).
-# Table 4 (effective April 1, 2026) classifies monthly countable income
-# into 16 groups per household size (2 through 12 or more). Each encoded
-# limit is the inclusive upper bound of its group; income above a bound
-# falls in the next group. Countable income is set directly to isolate the
-# classification.
+# Table 4 classifies monthly countable income into 16 groups per
+# household size (2 through 12 or more). Each encoded limit is the
+# inclusive upper bound of its group; income above a bound falls in the
+# next group. Countable income is set directly to isolate the
+# classification. Periods in 2026 use the April 1, 2026 edition (encoded
+# at the 2020-01-01 backdating floor); periods from October 2026 use the
+# October 1, 2026 edition (the 2027-01 cases below).
 
 - name: Case 1, size 2 with low income lands in group 1.
   period: 2026-01
@@ -272,3 +274,164 @@
     # Classification never exceeds group 16; the 85% state median income
     # eligibility ceiling is applied separately in ut_ccap_income_eligible.
     ut_ccap_income_group: 16
+
+- name: Case 13, October 2026 table, size 2 at the group 2 upper bound stays in group 2.
+  period: 2027-01
+  input:
+    people:
+      person1:
+        age: 30
+      person2:
+        age: 5
+    spm_units:
+      spm_unit:
+        members: [person1, person2]
+        ut_ccap_countable_income: 2_140  # inclusive group 2 upper bound
+    households:
+      household:
+        members: [person1, person2]
+        state_code: UT
+  output:
+    # The October 1, 2026 edition raised the size 2 group 2 bound from
+    # 2,082 to 2,140, so 2,140 now stays in group 2.
+    ut_ccap_income_group: 2
+
+- name: Case 14, October 2026 table, size 2 just above the group 2 bound moves to group 3.
+  period: 2027-01
+  input:
+    people:
+      person1:
+        age: 30
+      person2:
+        age: 5
+    spm_units:
+      spm_unit:
+        members: [person1, person2]
+        ut_ccap_countable_income: 2_141  # above 2,140, group 3 (2,140.01-2,477)
+    households:
+      household:
+        members: [person1, person2]
+        state_code: UT
+  output:
+    ut_ccap_income_group: 3
+
+- name: Case 15, October 2026 table, size 4 at the group 15 upper bound stays in group 15.
+  period: 2027-01
+  input:
+    people:
+      person1:
+        age: 30
+      person2:
+        age: 28
+      person3:
+        age: 3
+      person4:
+        age: 6
+    spm_units:
+      spm_unit:
+        members: [person1, person2, person3, person4]
+        ut_ccap_countable_income: 8_288  # inclusive group 15 upper bound
+    households:
+      household:
+        members: [person1, person2, person3, person4]
+        state_code: UT
+  output:
+    ut_ccap_income_group: 15
+
+- name: Case 16, October 2026 table, size 4 just above the group 15 bound moves to group 16.
+  period: 2027-01
+  input:
+    people:
+      person1:
+        age: 30
+      person2:
+        age: 28
+      person3:
+        age: 3
+      person4:
+        age: 6
+    spm_units:
+      spm_unit:
+        members: [person1, person2, person3, person4]
+        ut_ccap_countable_income: 8_289  # group 16 (8,288.01-8,670)
+    households:
+      household:
+        members: [person1, person2, person3, person4]
+        state_code: UT
+  output:
+    ut_ccap_income_group: 16
+
+# The October 2026 size 10 group 16 upper bound is encoded as published
+# (12,846) although the surrounding sizes suggest 12,486 was intended;
+# the group 16 bound only separates group 15 from group 16, so the
+# classification below is identical under either reading (see the
+# income_limits.yaml header comment).
+- name: Case 17, October 2026 table, size 10 at the group 15 upper bound stays in group 15.
+  period: 2027-01
+  input:
+    people:
+      person1:
+        age: 40
+      person2:
+        age: 38
+      person3:
+        age: 12
+      person4:
+        age: 11
+      person5:
+        age: 10
+      person6:
+        age: 9
+      person7:
+        age: 8
+      person8:
+        age: 7
+      person9:
+        age: 6
+      person10:
+        age: 5
+    spm_units:
+      spm_unit:
+        members: [person1, person2, person3, person4, person5, person6, person7, person8, person9, person10]
+        ut_ccap_countable_income: 11_935  # inclusive group 15 upper bound
+    households:
+      household:
+        members: [person1, person2, person3, person4, person5, person6, person7, person8, person9, person10]
+        state_code: UT
+  output:
+    ut_ccap_income_group: 15
+
+- name: Case 18, October 2026 table, size 10 just above the group 15 bound moves to group 16.
+  period: 2027-01
+  input:
+    people:
+      person1:
+        age: 40
+      person2:
+        age: 38
+      person3:
+        age: 12
+      person4:
+        age: 11
+      person5:
+        age: 10
+      person6:
+        age: 9
+      person7:
+        age: 8
+      person8:
+        age: 7
+      person9:
+        age: 6
+      person10:
+        age: 5
+    spm_units:
+      spm_unit:
+        members: [person1, person2, person3, person4, person5, person6, person7, person8, person9, person10]
+        ut_ccap_countable_income: 11_936  # group 16 (11,935.01-12,846 as published)
+    households:
+      household:
+        members: [person1, person2, person3, person4, person5, person6, person7, person8, person9, person10]
+        state_code: UT
+  output:
+    ut_ccap_income_group: 16
diff --git a/policyengine_us/tests/policy/baseline/gov/states/ut/dwf/ccap/ut_child_care_subsidies.yaml b/policyengine_us/tests/policy/baseline/gov/states/ut/dwf/ccap/ut_child_care_subsidies.yaml
index 3e44e96dff9..af08aa92361 100644
--- a/policyengine_us/tests/policy/baseline/gov/states/ut/dwf/ccap/ut_child_care_subsidies.yaml
+++ b/policyengine_us/tests/policy/baseline/gov/states/ut/dwf/ccap/ut_child_care_subsidies.yaml
@@ -66,11 +66,14 @@
   output:
     # Computed end to end from raw inputs rather than setting ut_ccap
     # directly. Each month: countable income 3,000 - 100 (one earner)
-    # - 100 (medical) = 2,800 -> size 2 group 5 (2,722.01-3,041), one
-    # child -> copay 109; cap: licensed center three year old = 900;
-    # min(1,000, 900) - 109 = 791. Annual: 791 x 12 = 9,492, which the
+    # - 100 (medical) = 2,800; cap: licensed center three year old = 900.
+    # January-September (April 2026 table): size 2 group 5
+    # (2,722.01-3,041), one child -> copay 109; min(1,000, 900) - 109
+    # = 791. October-December (October 2026 table): the uprated bounds
+    # place 2,800 in group 4 (2,477.01-2,814) -> copay 74;
+    # 900 - 74 = 826. Annual: 9 x 791 + 3 x 826 = 9,597, which the
     # ut_child_care_subsidies aggregator passes into the federal
     # child_care_subsidies total (child_care_subsidy_programs.yaml).
-    ut_ccap: 9_492
-    ut_child_care_subsidies: 9_492
-    child_care_subsidies: 9_492
+    ut_ccap: 9_597
+    ut_child_care_subsidies: 9_597
+    child_care_subsidies: 9_597