Hi

In Odoo default we have one feature to add the maximum amount for any payment method but there is no option for a minimum option to restrict payment method.

But this is a very small customisation if you want you need to add one field min_amount in payment.provider and then add the same field in view as well.

after that, there is one function that verifies all conditions like country and state and on this basis, they allow Payment providers on the website so you need to inherit the function and then simply check the condition for a minimum price if verified then ok then remove the provider from the provider.

function name = _get_compatible_providers

Thanks