The Colorado 104 form, officially known as the DR 0104, is essential for individuals filing their state income tax returns. This form caters to full-year residents, part-year residents, and non-residents, allowing them to report their income and calculate their tax obligations. It requires personal details such as names, Social Security numbers, and dates of birth for both the taxpayer and their spouse, if applicable. Additionally, taxpayers must report their federal taxable income and make necessary adjustments for state-specific deductions and additions. This includes items like business interest expense deductions and net operating loss addbacks. The form also addresses various credits that can reduce the overall tax liability, such as nonrefundable credits and refundable credits. Furthermore, taxpayers can indicate their preference for direct deposit refunds and provide third-party designee information if they wish to authorize someone else to discuss their return with the Colorado Department of Revenue. Completing this form accurately is crucial for ensuring compliance with state tax laws and for maximizing potential refunds or minimizing tax due.