Edit, Download, and Sign the Colorado Part-Year Resident Tax Calculation Form
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How do I fill this out?
Filling out this form involves carefully providing your personal and income details as required. Begin with gathering your federal tax forms and Colorado income information. Follow the instructions in each section to ensure accurate reporting.

How to fill out the Colorado Part-Year Resident Tax Calculation Form?
1
Gather all necessary federal income documents.
2
Identify if you are a part-year resident or nonresident.
3
Complete your personal information in the designated areas.
4
Report all income earned while a Colorado resident.
5
Calculate your Colorado tax based on the provided schedules.
Who needs the Colorado Part-Year Resident Tax Calculation Form?
1
Individuals who moved to Colorado and want to file taxes correctly.
2
Part-year residents who need to allocate income for tax purposes.
3
People receiving state unemployment benefits while a Colorado resident.
4
Military personnel filing taxes under the 305-day rule.
5
Spouses of part-year residents needing to report joint income.
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What are the instructions for submitting this form?
To submit the completed Form 104PN, you can either mail it directly to the Colorado Department of Revenue at 1375 Sherman St, Room 100, Denver, CO 80203. Alternatively, you may use the online submission portal available on the Colorado Department of Revenue's website for electronic filing. We recommended checking submission due dates and ensuring your form is complete before submission.
What are the important dates for this form in 2024 and 2025?
Important dates for the Form 104PN in 2024 include the filing deadline of April 15, 2024, for tax year 2023. For the 2025 tax year, the filing deadline remains the same. Stay updated with potential extensions or changes to filing deadlines.

What is the purpose of this form?
The purpose of the Form 104PN is to allow part-year residents and non-residents to calculate their Colorado taxable income for the year 2020 accurately. By apportioning only Colorado income, this form ensures that filers pay taxes appropriately based on their residency status. It simplifies the tax process for individuals who have moved in and out of the state during the tax year.

Tell me about this form and its components and fields line-by-line.

- 1. Taxpayer's Name: The full name of the taxpayer.
- 2. SSN or ITIN: Social Security Number or Individual Taxpayer Identification Number.
- 3. Income Lines: Sections to report various types of income earned.
- 4. Adjustment Fields: Fields to enter any federal adjustments to income.
- 5. Total Income: Total income calculation from specified lines.
- 6. Colorado Income: Income that is specifically from Colorado sources.
- 7. Tax Calculation: Overall tax liability based on calculated income.
- 8. Signature Field: Space for the taxpayer's signature.
What happens if I fail to submit this form?
If you fail to submit the form on time, you may incur penalties and interest on any overdue taxes. Additionally, your tax return may be considered incomplete, leading to further complications with the Colorado Department of Revenue.
- Penalties: Potential penalties for late submission can increase tax liability.
- Interest Accumulation: Interest on unpaid taxes will accumulate over time.
- Incompletion Issues: An incomplete return may necessitate additional filing efforts.
How do I know when to use this form?

- 1. Part-Year Residency: Applicable for individuals who lived in Colorado during part of 2020.
- 2. Income from Colorado Sources: For reporting income earned from Colorado while out-of-state.
- 3. Military Tax Filing: Used by military personnel qualifying under specific residency rules.
Frequently Asked Questions
How do I fill out the 104PN form?
Start by gathering required documents, then fill in your personal details accurately.
Can I edit my PDF after downloading?
Yes, you can edit your PDF before downloading it with our editor.
What information do I need to report?
Report all income earned while residing in Colorado.
Is there a step-by-step guide available?
Yes, our website provides detailed instructions for filling out the form.
Can I share the completed form directly?
Absolutely! Use our sharing options to distribute your completed PDF.
What if I have multiple income sources?
Outline each income source as specified in the form to ensure accuracy.
Do I need to provide my SSN?
Yes, the form requires your SSN or ITIN for identification.
Is assistance available for filling out the form?
Yes, guidance is available through our resources on the website.
Can I access this form anytime?
Yes, the form is accessible online for your convenience.
Is there a deadline for submitting the 104PN?
Ensure to submit it by the established tax deadlines for 2024 and 2025.