We’re pleased to announce that new payroll tax updates are available for Sage 300.
Sage 300 Canadian Payroll Tax Update September 30, 2026 includes:
- No federal legislative updates.
- No provincial or territorial legislative updates.
- Product enhancements.
Sage 300 US Payroll Tax Update Q3 2026 includes:
- State and local tax updates.
- No federal legislative updates.
- Product enhancements.
To download the update
- Click the links below to download and install the applicable updates:
- Download Sage 300 Canadian Payroll Tax Update September 30, 2026
- Download Sage 300 US Payroll Tax Update Q3 2026
- If you are prompted to log in, enter your Customer Portal username and password, then click Log In.
Important notes
- If you have trouble downloading the update, clear your cache and cookies, use private browsing, or try an alternative web browser.
- To use this product update, you must have Sage 300 Canada and/or U.S. Payroll 8.0, which is supported in Sage 300 2027, 2026, 2025, and 2024.
- If Canadian and U.S. Payroll are installed, you must install the same Payroll Tax Update. Otherwise, you will not be able to log in to Sage 300 Web Screens.
- If you are using the Sage HR Integration with Sage 300, you can only use the Sage 300 desktop interface to print cheques/checks. Payroll cheque/check printing is not available in Web Screens.
We recommend updating to the latest version to take advantage of legislative and product updates.
Sage 300 Canada
This update does not include any legislative or provincial/territorial updates. The following product improvements are available with this update:
- T4 and T4A screens: Added a File Type option that allows you to select Original, Amended, or Cancelled, where the selected file type is displayed on printed forms.
- Cost Center Override enhancements: Now supports Flat Earnings, Flat Benefit with option for Cost Center Override Allocated Base.
For full details of this release, please review the Sage 300 Canadian Payroll Tax Update September 30, 2026 Release Notes.
Sage 300 US
This update includes state and local tax changes as well as product improvements.
State and local tax updates
Updates are included for:
- Idaho
- Kentucky
- Maine
- Ohio
- Pennsylvania
These updates include revised withholding tables, instructions, and local tax rate changes where applicable.
Product enhancements
- Cost Center Override enhancements: Now supports Flat Earnings, Flat Benefit with option for Cost Center Override Allocated Base.
For full details of this release, please review the Sage 300 US Payroll Tax Update Q3 2026 Release Notes.
Thank you for being part of the Sage 300 community. If you have questions or need assistance, start a discussion in the Sage 300 General Discussion Forum in Community Hub or visit www.Sage.com/Resources for more options.