Billing Overview
The Billing tab allows you to manage payments, track expenses, and download invoices. Here’s what you can do:- Payment Management: We use Stripe for secure and reliable payment processing. You can update your payment methods by clicking on the “Change payment methods” button.
- Billing History: Review your monthly expenses, including detailed cost breakdowns by category (e.g., Voice Infra, LLM).
- Invoices: Easily download invoices by clicking the “Invoice” button next to the respective period.
- Current Charges: View ongoing costs for the current billing period, including itemized amounts and usage details.
Retell uses post-usage billing, not a prepaid credit balance. You are charged at the end of each billing period based on actual usage on the payment method you have on file — there is no manual top-up or auto-recharge to configure. Make sure a valid payment method is added (see Add payment methods) to avoid service interruptions. If a charge fails, follow Handle failed payments.

View usage breakdown
The Usage tab on the Billing page provides a clear breakdown of your workspace’s activity and costs. Here’s what you can track:- Total Cost: Your total expenses for the selected billing period.
- Call Minutes: The total number of call minutes used.
- Average Cost Per Minute: The average cost for each minute of calls.
- Daily or weekly call costs, making it easy to identify high-cost periods and track spending trends over time.
- Cost by Provider: A detailed breakdown of expenses across providers, such as voice infra, large language models (LLMs), telephony services, and concurrency usage.

Stop charges or close your account
Because Retell uses post-usage billing, there is no recurring subscription to cancel and no fixed monthly fee on the pay-as-you-go plan — you are only charged for usage you actually incur (call minutes, phone numbers, knowledge bases, and other line items shown on the Billing page). To stop accruing charges:- Stop running calls. Once no calls are made, no usage charges accrue for the next billing period.
- Release any phone numbers you own. Numbers purchased through Retell are billed monthly until released. Remove the number from the Phone Numbers page in the dashboard, or call the Delete Phone Number API.
- Delete knowledge bases beyond the free tier. Additional knowledge bases are billed monthly until deleted.
- Settle any outstanding invoices on the Billing page.

