Miscellaneous topics that do not fit into specific categories.
Hey there! Nice to meet you!
In case you are referring to Tax invoice, it will be available for download from the Order details within 2 to 5 days after purchase.
You may check it on account.microsoft.com > Order History > Select the date range when you have purchased/renewed the subscription > Once you have located your Microsoft 365 family transaction, click Order Detail > Tax invoice.
You may also check this link for reference: https://support.microsoft.com/account-billing/tax-invoices-breakdowns-and-registration-numbers-for-microsoft-store-73cdf164-974d-3ff9-e0a8-7b91aa170cb8
Thank you for your understanding.
Best regards,
Darhyl