AWS tax setting not issuing invoice with Updated GST.

If you've updated your tax settings in AWS but are still being billed using the previous tax settings, there are a few steps you can take to address this issue:

1. Double-check your tax settings: Ensure that you've correctly updated all necessary information in the AWS Billing console under the Tax Settings section. This includes your business legal name, address, and any relevant tax registration numbers.

2. Verify the changes: After making updates, confirm that the changes have been saved and are reflected in your account settings.

3. Allow for processing time: Sometimes, there may be a delay between updating your tax settings and seeing those changes reflected in your billing. It's possible that the changes haven't been fully processed yet.

4. Check your billing cycle: The updated tax settings might only take effect from the next billing cycle. Review your billing dates to see if this could be the case.

5. Contact AWS Support: If you've verified all the above and are still experiencing issues, it's recommended to contact AWS Support directly. They can investigate why your updated tax settings are not being applied to your invoices and help resolve the issue.

6. Provide documentation: When contacting support, be prepared to provide any relevant documentation that proves your new tax status or company incorporation. This can help expedite the process of updating your account.

7. Request manual invoice adjustment: In some cases, you may need to ask AWS Support to manually adjust your invoice to reflect the correct tax settings.

Remember, changing tax settings, especially when transitioning from personal to business use, can sometimes require additional verification or steps. AWS Support should be able to guide you through any specific requirements for your situation and ensure that your billing reflects the correct tax settings moving forward.
Sources
Troubleshooting creating invoice units - AWS Billing
About VAT Invoice publish | AWS re:Post