Plan interval in Zoho Billing defines how often a customer is charged for their subscription. Common plan intervals include monthly (billed every 30 days), quarterly (every 3 months), semi-annual (every 6 months), and annual (once per year). The plan interval directly determines the cadence at which Zoho Billing generates invoices and processes payment collection for each subscriber.
When creating a plan, you select the billing interval from the available options. You can create the same plan with multiple interval variants and offer both monthly and annual billing to customers, typically with a discount for the annual option. Customers can switch between intervals during plan changes, with Zoho Billing calculating any proration for the mid-cycle adjustment.
From a business perspective, annual plans improve cash flow predictability because payment is collected upfront for the full year. Monthly plans are easier for customers to start and reduce commitment friction. Offering both intervals with an annual discount is a common strategy that improves customer conversion rates while incentivising longer commitments.
Zoho Billing supports a range of standard intervals including weekly, monthly, quarterly, semi-annual, and annual. For less common intervals (such as every 2 months or every 18 months), check the current Zoho Billing configuration options, as custom intervals may be available depending on your plan. Standard intervals cover the vast majority of SaaS and service billing use cases.
Yes. If a customer changes their plan interval (for example, from monthly to annual) mid-cycle, Zoho Billing calculates proration for the remaining days of the current monthly period and applies a credit toward the annual plan invoice. The next billing date adjusts to align with the new annual interval starting from the change date.
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