---
title: "09/30/2026 Release Notes: Colorado State Taxes"
description: These release notes document improvements to the Colorado State Tax process released on 09/30/2026.
---
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# 09/30/2026 Release Notes: Colorado State Taxes
## These release notes document improvements to the Checkwriters software released on 09/30/2026.
### CO SITW – Form DR 0004
To maintain compliance with [Colorado State Tax requirements](https://tax.colorado.gov/DR0004), we have enhanced the Colorado State Income Tax process. We have added the following to Colorado employees' [Tax page](https://help.checkwriters.com/knowledge/employee-center-tax?hsLang=en):
- **DR0004 Annual Withholding Allowance** field
- Replaces the **State Exemptions** and **State Additional Exemptions** fields.
- **Employee Submitted 2022 (or later) CO DR0004** checkbox
- Replaces the **Employee Submitted 2020 (or later) W-4** checkbox
These enhancements accomplish the following:
##### HR Admin
- If an employee has a Colorado State Income Tax (CO SITW) record with a Start Date AFTER December 31, 2021, the **Employee Submitted 2022 (or later) CO DR0004** checkbox will be automatically checked and will be read-only (cannot be unchecked).
- If an employee has a Colorado State Income Tax (CO SITW) record with a Start Date ON or BEFORE December 31, 2021, the **Employee Submitted 2022 (or later) CO DR0004** checkbox will not be checked.
##### Employee Self-Service
- If an employee submits a Colorado State Income Tax (CO SITW) change request in **ESS → My Payroll → Taxes**, the **Employee Submitted 2022 (or later) CO DR0004** checkbox will automatically be checked and will be read-only (cannot be unchecked).
- Employees will also see the new **DR0004 Annual Withholding Allowance** field in place of the **Exemptions** field.
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