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1 William Ahern, California Legislators Push for More Double-Digit Income Tax Rates 1 (2008)

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July 2008
No. 134
California Legislators Push for More Double-
Digit Income Tax Rates
By William Ahern
With the new Democratic push in the California legislature for higher income tax rates, it's worth
taking a look back at how the top rates have changed in recent years.
California was an early adopter of double-digit income tax rates, applying rates of 10 and 11
percent to high incomes throughout the early 1990s. Hawaii applied a 10% top rate at that time,
but no other state applied a double-digit rate to all taxable income. Several other states had double-
digit income tax rates on their books during the 1990s but allowed federal tax payments to be
deducted on the state return, reducing the effective state rate substantially. Hawaii lowered its top
tax rate into the single-digit range in 1998, and the trend away from federal deductibility has
reduced every other statutory rate into single digits. California's rates and brackets from that era
are shown in Table 1.

,Table 1
California's Personal Income Tax Rates in 1995
SinglesZ                    Couplesi
o > $ 4,83l                  2o > $ 9,662
40/o >$11,449i                4/o >$ 22,898i
.....................  '/   ....,S ~ .........................................................
800> $ 25,83                8002%> $ 50,66Z
93 0 >$31    700i ...........................3.0..$63,40
4%o> $ 109,4964 Oo>$ 29,872
....  . 0 o 9,87 6. .........................1 ..o >. $43 9,874
.................... 1 ° ...............................................  ................... > $ 2 9 8 2 i    .................................... > $ 4 9 7 4
Source: CA Franchise Tax Board
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