PMPro – Proration Add On is a membership extension that automatically adjusts initial payments when members upgrade or downgrade their plans. It ensures accurate billing by calculating credits for unused days or charging partial amounts to align with existing renewal dates. This solution eliminates the manual effort required to calculate fair transitions between different subscription tiers.
WPExclusive members get access to Proration Add On as part of a full plugin and theme library — plans from $9.99/month. See the full Paid Memberships Pro collection →
What Is PMPro – Proration Add On?
PMPro – Proration Add On is developed by Paid Memberships Pro and is a membership plugin for WordPress. It is designed to handle the complex arithmetic involve in shifting users between paid levels mid-cycle. It belongs to the membership category on WPExclusive, alongside other tools for subscription management.
This extension solves the problem of users losing money when upgrading or gaining unfair access when downgrading. It is built for site owners who want to offer flexible plan changes without manually issuing refunds or adjusting invoices.
PMPro – Proration Add On Features
The feature set is built around automated billing logic and subscription synchronization.
Automated Upgrade Logic
When a member moves to a higher tier with the same billing period, the plugin calculates the cost based on remaining days. If the billing periods differ, the system applies a credit from the previous payment toward the new level’s initial charge. This helps maintain consistent revenue while staying fair to the customer in the membership workflow.
Delayed Downgrades
Proration Add On handles downgrades by delaying the change until the next scheduled payment date. Since the system cannot easily apply negative credits to all gateways, it allows the user to keep their premium access until the prepaid term expires. The actual level change happens automatically on the renewal date.
Subscription Date Alignment
The plugin maintains a member’s payment date whenever possible. For same-period upgrades, the recurring date remains identical, ensuring all members stay on their original billing cycle. For different-period upgrades, the date resets to exactly one full period from the checkout time.
Pricing
Check current pricing on the Proration Add On sales page — WPExclusive members access it as part of their plan.
| Plan | Price | Sites | Includes |
|---|---|---|---|
| Standard PMPro Plan | Check Vendor | 1-5 Sites | Core + Basic Addons |
| WPExclusive Membership | From $9.99/month | Unlimited | Proration Add On + full library |
For developers managing multiple sites, a WPExclusive membership covers Proration Add On plus hundreds of other plugins and themes — usually less than one premium license.
Latest Version
The current version is v1.0.4. WPExclusive updates plugin files promptly after each release.
How to Install
- Download the Proration Add On .zip from your WPExclusive member account
- In WordPress: Plugins → Add New → Upload Plugin
- Select the .zip and click Install Now → Activate
- Ensure the core Paid Memberships Pro plugin is installed and active
- Navigate to Memberships → Add Ons to verify the extension status
Use Cases
Tiered Service Upgrades
Perfect for sites where users might move from a Basic to a Pro plan mid-month. This membership logic ensures they only pay the difference for the remaining days.
Billing Cycle Transitions
Useful for customers switching from a monthly billing cycle to an annual one. The plugin calculates a credit for the remaining monthly days and applies it to the annual total.
Agencies and Developers Managing Multiple Client Sites
Developers use WPExclusive to provide high-end membership logic to multiple clients without purchasing individual site licenses for every small expansion add-on.
Pros and Cons
✅ Strengths
- Supports both same-period and different-period membership transitions
- Maintains existing recurring payment dates to keep accounting simple
- Automated delayed downgrades prevent loss of prepaid access for members
⚠️ Limitations
- Only works for transitions between recurring levels, not fixed-term memberships
- Cannot apply negative credits/refunds automatically if the calculation is below $0
- Developer auto-updates require an active license key. WPExclusive publishes updates manually when new versions are released.
Is PMPro – Proration Add On GPL Licensed?
Yes. PMPro – Proration Add On is distributed under the GNU General Public License (GPL) — the same license that governs WordPress itself. GPL gives any user the legal right to use, study, share, and redistribute the software. This is the legal framework that makes WPExclusive’s membership model possible.
WPExclusive distributes 100% original, unmodified files — the same release the developer publishes. No injected code, no alterations, no security risks.
Get PMPro – Proration Add On on WPExclusive
WPExclusive membership starts at $9.99/month, $87/year, or $149 lifetime — giving you PMPro – Proration Add On plus every plugin and theme in the library, on unlimited sites.
Explore the full Paid Memberships Pro collection → or browse all WordPress plugins →
Frequently Asked Questions
What does PMPro – Proration Add On do?
PMPro – Proration Add On is a membership plugin used to adjust payments when users change levels. Proration Add On calculates credits for upgrades or delays downgrades to ensure fair billing cycles.
Is PMPro – Proration Add On free?
While the core PMPro plugin has a free version, this specific add-on is a premium extension. It is included in WPExclusive plans from $9.99/month.
What is the latest version of PMPro – Proration Add On?
The current version is v1.0.4. The plugin is actively maintained — WPExclusive members always receive the most current release.
How much does PMPro – Proration Add On cost?
Retail pricing is managed by the vendor. Via WPExclusive, it is included in plans from $9.99/month.
Is it legal to use PMPro – Proration Add On via WPExclusive?
The plugin is GPL licensed, which explicitly permits redistribution. WPExclusive provides original, unmodified files — fully within GPL terms.
Does it handle refunds automatically?
No, Proration Add On does not issue refunds. If a calculation results in a negative amount, the plugin zero’s out the checkout price and uses a delayed downgrade instead.
