Manual AR Invoice tax should be calculated automatically based on the item against the tax rates

Manual AR Invoice tax should be calculated automatically base on the item against the tax rates. I Have requirement that is when I create a Manual AR Invoice for a Item (Apparel Items) items has multiple tax that is if the item selling price is below 1000 then tax that should be calculated is 5 % GST and if the item selling price is more than 1000 Rupees then tax that should be calculated is 12 %GST .

How to configure this in AR. Please advise  how to achieve this.