Buying add-ons during the current billing cycle
Discover how to seamlessly manage billing adjustments when customers add new members to their subscription mid-cycle. This guide simplifies the calculation of additional costs, ensuring you maintain accurate and transparent billing. For instance, if a customer is currently billed
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When you purchase an OmniAI add-on partway through your current billing cycle, the first charge is adjusted based on the remaining time in that cycle. From the next billing cycle onward, the full monthly add-on price applies.
How Mid-Cycle Add-on Billing Works
If an add-on is purchased after the billing cycle has already started, the first charge is prorated.
Prorated billing means you pay only for the portion of the billing cycle during which the add-on is active.
After the current billing cycle ends, the add-on is billed at its full monthly price together with your subscription.
Example: Adding an Extra Member Mid-Cycle
Assume a customer is subscribed to Flexito Essentials at $59/month for a billing cycle running from May 1 to May 30.
An Extra 1 Member add-on costs $19/month.
If the customer adds the extra member on May 15, there are 15 days remaining in the 30-day billing cycle.
First Billing Cycle
The prorated add-on cost is:
$19 × 15 / 30 = $9.50
The total charge for that billing cycle becomes:
$59 + $9.50 = $68.50
So, for the current billing cycle, the customer pays $68.50.
Following Billing Cycles
From the next full billing cycle onward, the complete monthly add-on price applies:
$59 base subscription + $19 Extra Member = $78/month
As long as the subscription and add-on remain active, the recurring monthly total is $78/month.
Proration Formula
You can understand the first add-on charge using this formula:
Monthly add-on price × remaining days in billing cycle ÷ total days in billing cycle
The result is the prorated add-on charge for the current billing cycle.
Important Billing Notes
Mid-cycle add-on charges are prorated for the remaining portion of the current billing cycle.
The full monthly add-on price applies from the next billing cycle onward.
Add-ons are billed separately from the base OmniAI subscription.
All listed prices exclude applicable taxes.
Third-party provider charges may apply separately.
Subscription, add-on, and usage payments are non-refundable.
Frequently Asked Questions
What does prorated billing mean?
Prorated billing means the add-on charge is adjusted according to how much of the current billing cycle remains when the add-on is purchased.
Will I pay the full add-on price immediately?
Not when the add-on is purchased partway through the billing cycle. The first charge is calculated for the remaining portion of that billing cycle.
When does the full add-on price begin?
The full monthly add-on price applies from the next complete billing cycle.
Does this change my base subscription price?
No. The base subscription price remains the same. The prorated add-on charge is added to the current billing cycle, and the full add-on charge is added from the next billing cycle onward.
Related Articles
OmniAI Add-on Pricing
OmniAI Pricing
OmniAI Plans
Billing and Subscription Management
SEO & Search Metadata
Suggested SEO Title: Buying OmniAI Add-ons Mid-Cycle | Prorated Billing Explained
Meta Description: Learn how Flexito OmniAI calculates prorated charges when you purchase an add-on during your current subscription billing cycle.
Primary Keyword: OmniAI prorated add-on billing
Secondary Keywords:
Flexito add-on billing
buy add-on mid-cycle
prorated subscription billing
OmniAI extra member billing
mid-cycle add-on charge
Flexito billing cycle
Search Intent: Billing / Add-ons / Proration
Product: Flexito OmniAI
Article Type: Billing Guide
Visual & Link Recommendations
Add a simple billing timeline diagram showing:
Billing cycle start
Add-on purchase date
Prorated period
Next full billing cycle
Place the diagram immediately after How Mid-Cycle Add-on Billing Works.
Recommended alt text: “Flexito OmniAI prorated add-on billing timeline showing a mid-cycle purchase and the next full billing cycle.”
Link OmniAI Add-on Pricing, OmniAI Pricing, and Billing and Subscription Management to their final Knowledge Base URLs.
Change Summary
Replaced outdated
$49/monthand$10/monthexample pricing.Updated the example to the current confirmed $59/month Essentials plan and $19/month Extra Member add-on.
Recalculated the prorated first-cycle total to $68.50.
Recalculated the following monthly total to $78/month.
Added a reusable proration formula.
Improved SEO, GEO, Knowledge Base search, and AI/RAG readability.
Removed broken placeholder links from the old article.
Cross-Page Updates
Any Knowledge Base page that explains mid-cycle add-on billing or uses the previous $10 Extra Member example should be updated to match the current OmniAI add-on pricing.

