# Upgrade QuickBooks Desktop 2016 to 2021 (Pro & Pro Plus)
Upgrading QuickBooks Desktop from an older version is essential to ensure security, performance, and compatibility with the latest Windows updates. If you are using **QuickBooks Desktop Pro Plus 2016** or **QuickBooks Desktop Pro 2016**, upgrading to **QuickBooks Desktop 2021** helps avoid errors, improve speed, and unlock newer features.

Call **866-593-4750** for expert help with a safe and secure QuickBooks upgrade.
## Upgrade QuickBooks Desktop Pro Plus 2016 to 2021
If you are looking to **upgrade QuickBooks Desktop Pro Plus 2016 to 2021**, it is important to follow the correct upgrade process to avoid data loss or file compatibility issues. Since QuickBooks 2016 is no longer supported, upgrading ensures continued access to critical features and updates.
### Benefits of Upgrading Pro Plus 2016 to 2021
* Improved performance and stability
* Enhanced security and data protection
* Better compatibility with Windows 10 & 11
* Access to newer reporting and automation tools
* Reduced errors and crashes
### Steps to Upgrade QuickBooks Desktop Pro Plus 2016 to 2021
1. Create a complete backup of your company file
2. Verify your QuickBooks Pro Plus 2021 license
3. Download and install QuickBooks Desktop 2021
4. Open your company file and allow it to upgrade
5. Verify data accuracy after upgrade
If you encounter errors during installation or company file upgrade, professional support is recommended.
## Upgrade QuickBooks Desktop Pro 2016 to 2021
Businesses using **QuickBooks Desktop Pro 2016** often face issues like activation errors, crashes, and limited functionality. Upgrading to **QuickBooks Desktop Pro 2021** ensures smoother operations and long-term stability.
### Why Upgrade QuickBooks Desktop Pro 2016 to 2021?
* Continued access to QuickBooks features
* Faster processing and improved reliability
* Compatibility with newer hardware and OS
* Reduced risk of data corruption
* Better payroll and tax management support
### Upgrade Process for QuickBooks Desktop Pro 2016 to 2021
1. Back up company data
2. Install QuickBooks Desktop Pro 2021
3. Activate your new license
4. Open and upgrade the company file
5. Run a post-upgrade data check
## Common Issues During Upgrade & Solutions
* Installation errors
* Company file not opening
* Activation or license errors
* Data conversion problems
These issues can be resolved quickly with expert assistance.
## Get Expert Help to Upgrade QuickBooks Desktop 2016 to 2021
Upgrading QuickBooks requires proper planning and technical expertise. Our certified QuickBooks professionals ensure a **safe, fast, and error-free upgrade**.
📞 **Call Now: 866-593-4750**
Get professional support to upgrade QuickBooks Desktop Pro Plus 2016 or Pro 2016 to 2021.
## Conclusion
Whether you’re upgrading QuickBooks Desktop Pro Plus 2016 to 2021 or QuickBooks Desktop Pro 2016 to 2021, moving to a supported version is critical for security, performance, and compliance.
👉 Avoid downtime and data risks
## FAQs
Can I upgrade Pro Plus 2016 directly to 2021?
Yes. QuickBooks automatically converts your company file during installation.
Do I need a new license for Pro 2016 to 2021?
Yes. QuickBooks Desktop Pro requires a new license for each major version.
Will my data be safe during the upgrade?
Yes, if you create a backup before upgrading.
How long does the upgrade take?
Typically 30–90 minutes, depending on file size.
Can I keep both versions installed?
Not recommended. Multiple versions can cause conflicts.