Connecticut Form Ct 1120 - 12/22) connecticut corporation business tax. Web form ct‐1120 ext, application for extension of time to file corporation business tax return, is submitted to obtain an extension. Corporation business tax return apportionment. 2023 corporation business tax return. Web to amend a combined unitary corporation business tax return a taxpayer must file form ct‐1120cu, combined unitary.
2023 corporation business tax return. Web form ct‐1120 ext, application for extension of time to file corporation business tax return, is submitted to obtain an extension. Corporation business tax return apportionment. 12/22) connecticut corporation business tax. Web to amend a combined unitary corporation business tax return a taxpayer must file form ct‐1120cu, combined unitary.