Form Ct 400 - Department of taxation and finance. Web if your corporation reasonably expects to owe more than $1,000 in tax after credits, you must file estimated tax forms. (4/17) estimated tax for corporations. This form has a new mailing address. Fill, sign, and generate a printable.
Fill, sign, and generate a printable. This form has a new mailing address. Web if your corporation reasonably expects to owe more than $1,000 in tax after credits, you must file estimated tax forms. Department of taxation and finance. (4/17) estimated tax for corporations.