Live in Mass starting a new Job in Ct TAXES TAXES

As a resident of Massachusetts, you are subject to MA tax on all of your income, from all sources. Your earnings in Connecticut are also subject to Connecticut income tax. You will file as a resident of MA and a nonresident of CT. MA will give you credit for the tax you pay to CT on your CT earnings, limited to the proportion of your MA tax liability that relates to that income. See Mass. Form 1, Schedule Z.

Your employer should withhold CT tax from your earnings, since MA effectively cedes the tax to CT by allowing the credit.

Katie in San Diego

Yes, you get taxed by both states. However, MA will give dollar-for-dollar credit for the tax paid to CT -- but not more than the MA tax would have been on that income. In other words, while you are not double-taxed, you'll effectively be taxed at the highest rate between the states (which will probably be CT's rate, because MA has a flat 5.3% tax on wages).

Because of MA giving a credit for income tax paid to CT, you should fill out the CT equivalent of a W-4 to have CT withhold enough to cover the CT tax. Then fill out the M-4 to have MA take out enough to cover whatever MA tax won't be covered by the credit for the CT tax.

In other words, the bulk of your state tax withholdings will actually likely go to CT, even though you are a MA resident.

-- ich Carreiro snipped-for-privacy@rlcarr.com

How do I find out how much I would need to withhold given my salary? Do I withold 6 just like ma?

The Constitution State has the most complex set of rules for tax withholding in the Union. The following link at the CT Dept. of Revenue Services contains the withholding form, tables and explanations. Good luck!