File Connecticut Form CT-1040X
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Connecticut Form CT-1040X is a tax return document for residents who need to amend their previous return. Also known as the amended individual tax return form, it is used to correct any errors in income, reimbursements or tax credits on a number of other Connecticut CT-1040 tax documents. When filling out your CT-1040X form, you will be given the chance to explain why you are making an amendment in your tax return.