Support Notice: Sunsetting of Authorize.net Classic 1.0 Gateway – Effective March 10
- Z Singleton
- Mar 5
- 2 min read
Superior Financial Systems would like to inform all merchants that the classic 1.0 gateway for Authorize.net will be officially sunset effective March 10.
All merchants should now be operating within the new Authorize.net 2.0 (New Merchant Experience) environment. If you are still accessing or relying on legacy 1.0 functionality, immediate action is required to prevent workflow disruption.
What Is Changing?
The new Authorize.net 2.0 platform represents a significant upgrade to both the Merchant Portal interface and the underlying API/security infrastructure. Below is a summary of key changes:
1. User Interface & Experience Improvements
Redesigned Dashboard
Modern, task-oriented layout
Smart Search functionality
Quick filters & customizable workspaces
AI Assistant Integration
Built-in AI tools to help navigate and manage portal functions
Virtual Terminal Update
“Virtual Terminal” is now called Accept Payment
Improved usability and streamlined layout
Enhanced Reporting
Settlement reports now include expanded transaction breakdowns (including card-type details)
2. Functional & Feature Enhancements
Account Updater
Improved automatic updating of expired or replaced credit cards
Customer Profiles
Email address now required for enhanced fraud protection and communication
Mobile & Payment Features
Tap to Pay support on Android
Improved catalog integration
Invoicing Improvements
1.0 invoices can now be managed in 2.0
Improved handling of partial payments
3. API & Security Upgrades
Signature Key (HMAC-SHA512)
Enhanced API validation security
Webhooks Replacing Silent Post
Legacy Silent Post is being phased out
OAuth 2.0 Authentication
Industry-standard secure integrations
No need to store sensitive API credentials
Processing Mode
“Test Mode” has been renamed to Processing Mode
4. Deprecated or Removed Features
Verified Merchant Seal (Discontinued)
Direct Response setting (Removed – API usage encouraged)
Legacy VPOS replaced with 2.0 applications
AIM legacy connection method discouraged
Important: Tax Field Change in the New “Accept Payment” Page
One of the most significant operational differences in 2.0 involves how the Tax field functions:
In Authorize.net 2.0:
The Tax amount is ADDED to the Charge amount
The system calculates the total charged to the customer
In Authorize.net 1.0:
The tax amount was not automatically added in the same manner
Recommended Best Practice
To avoid errors and unnecessary processing costs:
Preferred Method
Enter the subtotal in the Charge field
Enter the actual tax amount in the Tax field
Allow the system to calculate the final total
Alternative Option
Enter 0 in the Tax field and mark tax exempt
⚠️ Please note: Marking transactions as tax exempt may cause the transaction to downgrade to a higher-cost interchange category, potentially resulting in increased credit card processing fees.
We strongly recommend reviewing your tax handling procedures to ensure accuracy and cost efficiency.
We’re Here to Help
Superior Financial Systems encourages all merchants to contact our support team to:
Review proper tax field handling
Confirm full migration to Authorize.net 2.0
Discuss upgrading to a newer gateway solution if appropriate
If you have any questions or need assistance transitioning, please reach out to our support team as soon as possible to ensure uninterrupted processing.
Thank you for your continued partnership.