Information on state of Connecticut W-4 Form

If a person is living in the state of Connecticut, regardless of where they earn their wage, they must pay state income taxes, in addition to federal income taxes. But how much is enough? Fortunately, there is a simple form to help each employer determine this.

In addition to the federal income tax withholding form, W4, each employee needs to fill out a Connecticut State income tax withholding form, CT-W4. This form has essentially the same information on it, but makes sure you have the correct notations for looking up how much needs to be withheld from each – such as “F” for single with an expected gross income greater than $12,625. Since state tax withholdings are calculated based on marital/partnered status and expected income, with no exemptions for dependants, it is recommended to have both a federal W-4 form and a Connecticut CT-W4 form on file.

For resident’s of Connecticut that are earning income outside of the state, they must still pay Connecticut State Income Tax, but will only pay the difference between what is being deducted by the other state and what would have been deducted in Connecticut. Again, having a CT-W4 on file will aid in determining that difference, and they are available online here.

And finally, please take note! If no income tax withholding form is filled out, taxes must be withheld at the highest level possible – single with income above $12,625 – even if the employee is known to be married. To prevent things like this from happening, I cannot stress the importance of having each employee file a state withholding form CT-W4 as well as a federal Form W-4 enough, so please make their completion a priority.

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