Payments FAQ: Why is a prorated amount charged for monthly subscriptions on the 29th, 30th, or 31st?
Estimated reading time: 3 minutes
Quick summary
If a customer purchases a monthly subscription on the 29th, 30th, or 31st of the month, the customer first pays a small pro rata amount for the remainder of that month. After this initial payment, the regular monthly payments will be charged automatically on the first day of each following month.
Why this matters
This logic is implemented because February does not have a 29th, 30th, or 31st day. By charging a pro rata amount for the final days of the signup month and moving the subscription renewal to the first day of the next month, the system avoids processing issues with shorter months and ensures that all your future revenue is collected consistently and predictably.
How the billing logic works
Initial Purchase at Month-End When a client signs up on the 29th, 30th, or 31st, the system calculates the specific value for the remaining days in that calendar month. Instead of charging for a full month that is nearly over, the client pays this small "bridge" amount.
Establishing the Payment Mandate This initial pro rata payment serves to authorize and establish the payment mandate (Direct Debit or Credit Card) with the customer’s bank. This ensures that the connection is active and ready for future automated collections.
Alignment to the 1st of the Month Once the pro rata amount is paid, the billing cycle is automatically synchronized. The first full subscription fee will be debited on the 1st of the following month and will remain on the 1st for all future periods, regardless of how many days are in the month.
Best practices
We recommend informing your clients that if they sign up during the last few days of the month, their first charge will be smaller than usual. This prevents confusion regarding the initial receipt and provides them with the peace of mind that their future billing will always occur on the same day every month.
Extra tips
When reviewing your financial reports at the beginning of the month, you will notice that all memberships started at the end of the previous month are consolidated on the 1st. This makes bank reconciliation and monthly revenue forecasting much simpler for your business.
Common questions
Is the customer being overcharged?
– No. The customer only pays for the exact number of days they have access to the facility during that first partial month. The daily rate remains the same as their standard membership.
What happens during leap years on February 29th?
– The system maintains the same rule even in leap years to ensure billing remains identical every year, always moving the collection to the 1st of the month for long-term stability.
Can I change this so the client pays the full month on the 31st?
– This is not recommended due to the inconsistency of the 29th, 30th, and 31st in the annual calendar. Aligning to the 1st is the most stable technical solution to prevent interruptions in your cash flow.
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