Hello, We are using custom shipping calculator where we get the shipping amount from external API and update shipping rates for the line items. We are using Avatax solidus extension to calculate tax. We do split the shipments based on the no.of items in an order. If the shipping amount is greater than 0, for each line item we are getting tax for the item as well as shipping tax additionally. Is this the expected approach to get the shipping tax for each shipment?

Hi @Rajeswari 👋🏼 Shipping tax is done similarly to line item tax, but it is a tax adjustment on each shipment instead of each line item. It is usually based on the shipping cost rather than the cost of the line items, thus why it is an adjustment on each shipment. I hope this makes sense.

Make sense. Yes. I m using avatax certified extension.