Tax exemption on international invoices

The re:Post community doesn't have visibility of your account, and that includes the tax status associated with it. You're advised to engage AWS Billing Support to progress this https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/billing-get-answers.html#billing-support

If you have an Enterprise-level support plan then you can also reach out to an account manager.

The way how you are charged tax depends on your tax settings. I assume that you have the FR VAT number, and I assume that you have not updated this information on your accounts, which is why the invoices you receive might have wrong tax info. Here's a knowledge center article to learn more about updating your tax settings: https://repost.aws/knowledge-center/update-tax-registration-number

As mentioned in the previous comment - only the support team will be able to advise you on the specifics of your accounts, so please open a billing support case. If you have Organization with multiple account - open your case from the Management Payer account, and the support team member will be able to advise regarding the tax information across accounts in your Organization.