GSTIN 5% and 12% based on Value

I am new to the GST India. I am dealing with clothes. As per my information if I buy or sell clothes at less than 1000 then 5% is applicable and above 1000 rupee is 12%. Is that available now in ERPNEXT? Please advice

You can achieve this by defining different Items based on Price. Mention applicable Tax rate in these items.
If same Item can be sold at different rates, then desired results can be achieved through minor customization.

Could you please elaborate on what is the Minor customization you refering here? And how to do it? Thanks.

Regards
_Liyakat

Write custom script on before save event to change value in field item_tax_rate of items table, based on condition on item/amount etc.