2021 Instructions CO-421
Tax Year 2021 Instructions CO-421, Unitary Affiliate Schedule - Unitary Filing Only
Business Entity Income Tax
2021 Instructions CO-420
Tax Year 2021 Instructions CO-420 Instructions Foreign Dividend Factor Increments (for Unitary-Combined Only)
2021 Instructions BI-476
Tax Year 2021 Instructions BI-476, Business Income Tax Return (Short Form - Vermont Resident Only)
2021 Schedule CO-420
Tax Year 2021 Schedule CO-420, Foreign Dividend Factor Increments (for unitary-combined only)
2021 Instructions CO-419
Tax Year 2021 Instructions CO-419, Apportionment of Foreign Dividends - Unitary Filing Only
2021 Schedule CO-419
Tax Year 2021 Schedule CO-419, Apportionment Of Foreign Dividends (for Unitary-Combined only)
2021 Form CO-414
Tax Year 2021 Form CO-414, Corporate Estimated Tax Payment Voucher
2021 Instructions CO-411
Tax Year 2021 Instructions CO-411, Corporate Income Tax Return
TY2021 Corporate and Business Income Tax MeF
Handbook on Corporate & Business Income Tax Modernized e‐File (MeF) for Tax Year 2021