Connecticut Bonus Tax Calculator (2026)
Connecticut has no flat bonus rate: the bonus is withheld with your regular pay. Here's an estimate of what you'll take home.
Connecticut rules for bonuses
Regular withholding (aggregate method).
- Paid with regular wages: one payment
- Paid at a different time: tax on combined regular + supplemental minus tax withheld on regular
- 6.99% applies only when no Form CT-W4 is on file. It is not a supplemental rate
There is no percentage method available to determine Connecticut wage withholding. (TPG-211)
Local taxes: None
Take-home bonus by amount
| Bonus | Federal (22%) | FICA | State | Take-home |
|---|---|---|---|---|
| $1,000 | $220 | $77 | $60 | $644 |
| $2,500 | $550 | $191 | $150 | $1,609 |
| $5,000 | $1,100 | $383 | $300 | $3,218 |
| $10,000 | $2,200 | $765 | $600 | $6,435 |
| $20,000 | $4,400 | $1,530 | $1,300 | $12,770 |
| $50,000 | $11,000 | $3,825 | $3,250 | $31,925 |
Sources
Frequently asked questions
What is the bonus tax rate in Connecticut?
Connecticut has no separate flat rate for bonuses: employers add the bonus to regular wages and use the normal withholding formula. For a $85,000 salary that works out to roughly 5.5% on the bonus.
How much of a $10,000 bonus do I keep in Connecticut?
About $6,435 for a single filer earning $85,000: $2,200 federal, $765 Social Security and Medicare and $600 state.
Will I get some of the bonus tax back?
Possibly. The 22% federal rate is only withholding. At tax time your bonus is taxed at your bracket (22% at this salary).