Invoice or Korea tax bill

I understand you're asking about AWS billing and tax documentation for a Korean company that's subscribed to AWS services through a US headquarters and making monthly payments to Amazon in the US.

You mentioned receiving an invoice email showing amounts in Korean won (KRW) and with your Korean bank account information. You're wondering if your payment account has been changed to KRW and how to obtain proper tax documentation, as you noticed VAT (value-added tax) is displayed.

Based on the information available, AWS Billing and Cost Management does include features related to tax settings and notifications. The system can alert customers about issues such as invalid tax registration numbers. AWS also provides recommended actions related to payment and tax settings.

For your specific situation regarding tax documentation (세금계산서) for a Korean business, I would recommend checking the recommended actions widget in the AWS Billing and Cost Management Console, which might contain information about your tax settings. The console has recently been updated with new features to help identify and resolve billing issues, including tax-related matters.

However, for detailed assistance with Korean tax documentation requirements and to confirm whether your payment method has been officially changed to KRW, you should contact AWS Support directly as they can provide guidance specific to your account situation and Korean tax requirements.
Sources
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안녕하세요.

2020년 12월부터 한국 내 법인으로 확인되는 계정의 청구는 원화로 계산됩니다. 과금은 USD 기준으로 Usage를 측정하고, 과금 시점에 KRW로 환산합니다. 관련된 자세한 내용은 다음 문서를 참고하시기 바랍니다. https://aws.amazon.com/ko/legal/awsk/

신용카드로 결제되는 경우, 법인 카드로 승인이 된다면, 해당 신용카드 승인 전표는 세금계산서를 갈음할 수 있는 서류입니다. 만약, 별도의 세금계산서 처리나 비용을 신용카드 외의 방법으로 결제하시려는 경우 AWS 공식 파트너들을 통해 비용 납부를 대행하실 수 있습니다.