Side-by-side tax comparison between California (13.3% top rate, graduated) and Connecticut (6.99% top rate, graduated). See which state lets you keep more at every salary level, and how cost of living changes the picture.
California uses a graduated income tax (1-13.3%) while Connecticut has a graduated system (3-6.99%). On a $100K salary, California takes $8,645 in state and local taxes compared to Connecticut’s $4,544 \u2014 a difference of $4,102.
Both states use graduated brackets, but California’s top rate of 13.3% is higher than Connecticut’s 6.99%.
Connecticut wins at 10 out of 10 salary levels tested. The advantage is consistent and significant across the income spectrum.
| Salary | California | Connecticut | Difference | Winner |
|---|---|---|---|---|
| $40K | $30,862 | $32,503 | +$1,641 | Connecticut |
| $50K | $38,033 | $40,083 | +$2,051 | Connecticut |
| $60K | $45,203 | $47,664 | +$2,461 | Connecticut |
| $75K | $55,054 | $58,130 | +$3,076 | Connecticut |
| $100K | $70,480 | $74,582 | +$4,102 | Connecticut |
| $120K | $82,821 | $87,743 | +$4,922 | Connecticut |
| $150K | $100,784 | $106,936 | +$6,152 | Connecticut |
| $200K | $131,597 | $139,800 | +$8,203 | Connecticut |
| $250K | $161,652 | $171,905 | +$10,254 | Connecticut |
| $300K | $189,394 | $201,698 | +$12,305 | Connecticut |
Take-home pay only tells part of the story. California has a cost of living index of 142 while Connecticut is at 111 (national average = 100).
This is a substantial difference. After adjusting for cost of living, $100K in California has purchasing power of $49,634 compared to $67,191 in Connecticut. Connecticut wins on both raw take-home and cost-adjusted purchasing power, making it the clear winner for a $100K earner.
For a single earner at $100K filing jointly, take-home becomes $76,065 in California and $80,167 in Connecticut \u2014 a difference of $4,102. The gap remains similar regardless of filing status.
On paper, moving from California to Connecticut would save $4,102/year on a $100K salary, or $20,508 over 5 years. But relocation involves real costs: moving expenses, potentially buying/selling a home, changing jobs, and adjusting to a new community.
The $4,102/year savings is meaningful but probably not enough to justify a move on its own. However, combined with other factors like career growth, lifestyle preferences, or family proximity, it could tip the scale.