While the information about the tax classification of product data is replicated along with the products themselves from SAP S/4HANA Cloud to SAP Commerce Cloud, actual tax rates and customer tax classification are not. So, the tax rates must be manually maintained in SAP Commerce Cloud by reference to SAP S/4HANA Cloud.
You can check the product tax classification in SAP Commerce Cloud Backoffice once the product has been replicated from SAP S/4HANA Cloud.

You would've determined the tax classification of products for country/region earlier, in Configure Product Replication, when configuring common settings for SAP Commerce Cloud, ready for master data replication. Let's assume you've done it at that time for DE and US, which has now been downloaded from SAP S/4HANA Cloud, the system you're doing the integration with. During asynchronous order processing in the SAP Commerce Cloud business processes, taxes will be determined as per this tax row in the storefront. This tax price is then pushed to SAP S/4HANA Cloud as a manual tax rate. If taxes are to be determined in the SAP Commerce Cloud storefront, you need to activate net price for base store in the SAP Commerce Cloud Backoffice.
- Access SAP Commerce Cloud Backoffice and log on as an administrator.
- Navigate toBase Commerce→Base Store.
- Choose the powertools base store of the storefront site.
- Make sure the Net field under the Properties tab is turned on.

Flagging the base store as Net implies that the price displayed on the product is without tax. Tax is calculated and added later in the checkout flow on the storefront. Every price row in SAP Commerce Cloud also has the same flag to differentiate if it's a net or a gross price. Price/Condition records in SAP S/4HANA Cloud don’t have this flag, but SAP Commerce Cloud requires this value for checkout and order. So, this setting on the base store determines the flagging of the replicated condition records from SAP S/4HANA Cloud.
- On the Properties tab, in the Tax Group section, assign a default customer tax jurisdiction to the base store by choosing US Taxes.

- Choose Save after making any changes.

