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Commissioner’s Bulletin # Texas Windstorm Insurance Association Rate Tables


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Table A: Buildings other than dwellings, townhouses & condominiums annual extended coverage rates per $100

TABLE* COINSURANCE ANNUAL EXTENDED COVERAGE RATE
1
Frame (F)
50%
80
100
...
0.561
0.555
2
Brick (M)
50
80
100
...
0.584
0.451
3 50
80
100
...
0.476
0.402
(HC) 50
80
100
0.694
0.429
0.410
4 (WR) 50
80
100
0.277
0.173
0.163
(SWR) 50
80
100
0.345
0.212
0.205
5
Brick**
50
80
100
...
0.400
...
5A
Frame**
50
80
100
...
0.482
...
5B
B.V.**
50
80
100
...
0.400
...
7 50
80
100
...
1.362
1.171
8 50
80
100
...
1.622
1.362
9 50
80
100
...
1.943
1.593
10 50
80
100
...
2.331
1.943
11 50
80
100
...
3.026
2.561
12 50
80
100
...
4.442
3.736
13 50
80
100
...
6.054
5.099
14 50
80
100
...
12.014
10.086

* Refer to the Special Index and General Index Pages of this Manual.
** For ACV Builders Risk Form TWIA-21 (Dwellings) Use 80% Coinsurance Rule

Effective January 1, 1998


Rate Table B: Townhouses and Condominiums, Buildings Annual Extended Coverage Rates Per $100

TABLE COINSURANCE ANNUAL EXTENDED COVERAGE RATE
1
Frame (F)
50%
80
100
...
0.333
0.329
2
Brick (M)
50
80
100
...
0.350
0.266
3 50
80
100
...
0.282
0.237
(HC) 50
80
100
0.410
0.258
0.246
4 (WR) 50
80
100
0.163
0.103
0.099
(SWR) 50
80
100
0.205
0.129
0.125

* Refer to the Special Index and General Pages of this Manual.

Effective January 1, 1998


Rate Table C: Business Personal Property/Personal Property of Buildings (Other than Dwellings) Annual Extended Coverage Rates Per $100

TABLE* COINSURANCE ANNUAL EXTENDED COVERAGE RATE
1
Frame (F)
50%
80
100
...
0.449
0.443
2
Brick (M)
50
80
100
...
0.476
0.362
3 50
80
100
...
0.380
0.314
(HC) 50
80
100
...
0.341
0.335
4 (WR) 50
80
100
...
0.137
0.133
(SWR) 50
80
100
...
0.171
0.167
5
Brick
50
80
100
...
0.198
...
5A
Frame
50
80
100
...
0.241
...
5B
B.V.
50
80
100
...
0.198
...
7 50
80
100
...
1.083
0.935
8 50
80
100
...
1.300
1.088
9 50
80
100
...
1.555
1.276
10 50
80
100
...
1.866
1.555
11 50
80
100
...
2.427
2.048
12 50
80
100
...
3.549
2.989
13 50
80
100
...
4.844
4.081
14 50
80
100
...
9.613
8.069

* Refer to the Special Index and General Index Pages of this Manual.

Effective January 1, 1998

For more information, contact: ChiefClerk@tdi.texas.gov

Last updated: 1/7/2026