Release integrity first
Know exactly
what you download.
The SMRC Payroll source package is now available for developers and technical testers. It is not a signed customer installer.
Customer software
Installer awaiting final release file.
The approved installer will be published with its version, file size, checksum, release notes and system requirements.
Not published
SMRC Payroll for Windows
The customer installer is not currently available. Download access will open after release approval.
- Intended platform: Windows 11
- Version: pending release approval
- Publisher signature: required
- SHA-256 checksum: generated at publication
Safe download policy: The source package is clearly identified below. A signed customer installer remains pending release approval and security checks.
Public download
SMRC Payroll source package.
Download the complete Visual Studio source package for development and technical testing. Windows, the .NET 10 SDK and internet access for the first NuGet restore are required.
Available now
SMRC Payroll Source — 24 October 2026
This ZIP contains the source solution, projects, resources, tests and supporting documentation. It does not contain a signed customer installer.
- Format: ZIP source package
- File size: 3.25 MB
- Platform: Windows development environment
- SHA-256: 6B0BF1483FBAE32570E4601209A3B6CDA05B841C3C7C98A29CC96BDCF03AC60A
Important: This source release is not approved for live payroll or live HMRC submissions. The signed customer installer is still being prepared.
When the installer arrives
Publication checklist.
Identity
- Exact product and edition
- Version and release date
- File size and format
- Publisher confirmed
Security
- Code signing verified
- Malware scan complete
- SHA-256 published
- No licence administration tools included
Quality
- Clean-machine install
- Upgrade and uninstall test
- Database backup tested
- Rollback instructions
Customer
- Release notes
- System requirements
- Known limitations
- Support route