How to set a 5% application fee in Stripe for Cal self-hosted ?

[safwanghamrawi]

Hi everyone, 👋

I'm self-hosting Cal.com and using Stripe to process payments for bookings. I want to charge a 5% platform fee when a user books a session. The goal is:

• The customer pays the full booking price.
• The service provider (connected Stripe account) receives 95% of the payment.
• The platform (my Stripe account) keeps 5% as an application fee.
• Stripe processing fees should be deducted from the service provider.

It looks like this is possible using the following environment variables:
PAYMENT_FEE_PERCENTAGE and PAYMENT_FEE_FIXED
but it didn't work.

Any suggestions

Thanks

[dosubot[bot]]

To set a 5% application fee in Stripe for Cal.com self-hosted, you need to configure the chargeCard method in the PaymentService class. Here's how you can do it:

1. Calculate the application fee as 5% of the total payment amount.
2. Set this calculated fee as the application_fee_amount in the Stripe PaymentIntent creation parameters.

Here's a code snippet that demonstrates this setup:

const paymentFee = Math.round(payment.amount * 0.05); // 5% application fee

const params = {
    amount: payment.amount,
    currency: payment.currency,
    application_fee_amount: paymentFee,
    customer: setupIntent.customer as string,
    payment_method: setupIntent.payment_method as string,
    off_session: true,
    confirm: true,
};

const paymentIntent = await this.stripe.paymentIntents.create(params, {
    stripeAccount: this.credentials.stripe_user_id,
});

This configuration ensures that the platform retains 5% of the payment as an application fee, and the remaining amount (after Stripe processing fees) is transferred to the service provider ^[1].

To continue talking to Dosu, mention @dosu.

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[safwanghamrawi]

any help ? any idea ?