kat-available-funds

[ionic granite]

From the Checkout Session you can get to the associated Payment Intent -> Charge -> Balance Transaction, and on the Balance Transaction object you should be able to check available_on (see https://stripe.com/docs/api/balance_transactions/object#balance_transaction_object-available_on)

[long rapids]

Ahh thank you. Is there also a web hook event for this?

balance.available maybe?

[ionic granite]

The balance.available event is triggered whenever the available balance changes and won't give you a breakdown into individual transactions.