ilyoTheHorrid

[gloomy inlet]

Hi! Let me help you with this.

You can use Stripe Tax for that: https://stripe.com/docs/tax

[frank blade]

thank you, but how do I do it as part of the payment intent API call?

As part of this:

    const paymentIntent = await stripe.paymentIntents.create({
      amount: Number(amount) * 100,
      currency: 'usd',
      customer: stripeCustomer,
      payment_method: paymentMethods.data[0].id,
      off_session: true,
      confirm: true
    })

[gloomy inlet]

You can follow this guide for PaymentIntents: https://stripe.com/docs/tax/custom

[frank blade]

So to make sure: I need to run stripe.tax.calculations.create and then use and use the result as the amount in checkout?

[gloomy inlet]

You will need to create a tax transaction and reference the payment intent, like so: https://stripe.com/docs/tax/custom#tax-transaction

[frank blade]

I'm not sure how this answers my question.
What is the difference between using stripe.tax.transactions.createFromCalculation and stripe.tax.calculations.create ?

[gloomy inlet]

stripe.tax.calculations.create just calculates a theoretical number,
stripe.tax.transactions.createFromCalculation actually applies the calculation to a specific paymentintent.

[frank blade]

What do you mean by "a theoretical number"? This makes no sense. Why would you have an API is the calculation is not accurate?

If I do

paymentIntent = await stripe.paymentIntents.update(cart.paymentIntent, {
      amount: taxCalculation.amount_total,
      metadata: {calculation: taxCalculation.id},
    });

This is also applied to a specific paymentintent. So what is the difference?

[gloomy inlet]

Sorry for the wording. I mean it's an exact number, but it's not applied to a real-life transaction at that point.

Here, in stripe.tax.transactions.createFromCalculation you create a record for that tax calculation in your transactions. It helps with your reporting.

[gloomy inlet]

This updates the total amount, but there will be no record that some part of this is tax.

[frank blade]

Ah, ok, now I understand, than you.