Other Individual Income Tax e-Services
Taxpayers and tax professionals may access individual income tax returns, payment history, refund status and other information through the Revenue Online service. Offering these services online, in one place, will help taxpayers and tax professionals to quickly and easily submit documents online and transact tax business with the department. Revenue Online for Individuals includes the following:
Revenue Online is available at https://www.Colorado.gov/RevenueOnline
Electronic Funds Transfer (EFT) -- Current year and estimated tax payments may be made through EFT. Taxpayers must first register to use the system. Payments may be made online or by telephone.