Wash. Admin. Code § 296-17B-900 – Retrospective rating plans standard premium size ranges

Retrospective Rating Standard Premium Size Ranges

Effective January 1, 2026

Size Group Number	Standard Premium Range
	From:		To:
1	6,110	-	7,129
2	7,130	-	8,069
3	8,070	-	9,069
4	9,070	-	10,169
5	10,170	-	11,319
6	11,320	-	12,569
7	12,570	-	13,909
8	13,910	-	15,309
9	15,310	-	16,819
10	16,820	-	18,389
11	18,390	-	20,049
12	20,050	-	21,859
13	21,860	-	23,749
14	23,750	-	25,769
15	25,770	-	27,889
16	27,890	-	30,129
17	30,130	-	32,529
18	32,530	-	35,049
19	35,050	-	37,729
20	37,730	-	40,539
21	40,540	-	43,559
22	43,560	-	46,749
23	46,750	-	50,149
24	50,150	-	53,739
25	53,740	-	57,569
26	57,570	-	61,649
27	61,650	-	65,979
28	65,980	-	70,579
29	70,580	-	75,489
30	75,490	-	80,749
31	80,750	-	86,369
32	86,370	-	92,389
33	92,390	-	98,839
34	98,840	-	105,799
35	105,800	-	113,199
36	113,200	-	121,299
37	121,300	-	129,999
38	130,000	-	139,299
39	139,300	-	149,399
40	149,400	-	160,199
41	160,200	-	171,899
42	171,900	-	184,299
43	184,300	-	197,799
44	197,800	-	212,699
45	212,700	-	228,699
46	228,700	-	245,799
47	245,800	-	264,399
48	264,400	-	285,299
49	285,300	-	307,799
50	307,800	-	332,299
51	332,300	-	359,599
52	359,600	-	389,899
53	389,900	-	423,999
54	424,000	-	461,699
55	461,700	-	504,199
56	504,200	-	552,499
57	552,500	-	606,999
58	607,000	-	669,799
59	669,800	-	742,599
60	742,600	-	827,399
61	827,400	-	926,999
62	927,000	-	1,044,999
63	1,045,000	-	1,188,999
64	1,189,000	-	1,365,999
65	1,366,000	-	1,586,999
66	1,587,000	-	1,873,999
67	1,874,000	-	2,248,999
68	2,249,000	-	2,775,999
69	2,776,000	-	3,550,999
70	3,551,000	-	4,828,999
71	4,829,000	-	7,238,999
72	7,239,000	-	13,239,999
73	13,240,000	-	33,889,999
74	33,890,000	-	and over

[Statutory Authority: RCW 51.16.035, 51.32.073, 51.18.010, and 51.04.020(1). WSR 25-24-041, s 296-17B-900, filed 11/26/25, effective 1/1/26; WSR 24-24-046, s 296-17B-900, filed 11/26/24, effective 1/1/25; WSR 23-24-039, § 296-17B-900, filed 11/30/23, effective 1/1/24; WSR 22-24-019, § 296-17B-900, filed 11/30/22, effective 1/1/23; WSR 20-24-094, § 296-17B-900, filed 11/30/20, effective 1/1/21; WSR 19-24-029, § 296-17B-900, filed 11/25/19, effective 1/1/20; WSR 18-24-073, § 296-17B-900, filed 11/30/18, effective 1/1/19; WSR 17-24-041, § 296-17B-900, filed 11/30/17, effective 1/1/18; WSR 16-24-014, § 296-17B-900, filed 11/29/16, effective 1/1/17; WSR 15-24-103, § 296-17B-900, filed 12/1/15, effective 1/1/16; WSR 14-24-084, § 296-17B-900, filed 12/1/14, effective 1/1/15; WSR 13-24-073, § 296-17B-900, filed 11/30/13, effective 1/1/14. Statutory Authority: RCW 51.16.035, 51.32.073, 51.08.010, and 51.04.020(1). WSR 12-24-048, § 296-17B-900, filed 11/30/12, effective 1/1/13; WSR 11-24-026, § 296-17B-900, filed 12/1/11, effective 1/1/12. Statutory Authority: RCW 51.16.035, 51.32.073, 51.18.010, and 51.04.020(1). WSR 11-04-069, § 296-17B-900, filed 1/28/11, effective 2/28/11.]