Residual method for determination of value of supply of goods or services or both under GST

Rule-31 under CGST Rules 2017

31. Resid­ual method for deter­mi­na­tion of val­ue of sup­ply of goods or ser­vices or both.- 

Where the val­ue of sup­ply of goods or ser­vices or both can­not be deter­mined under rules 27 to 30, the same shall be deter­mined using rea­son­able means con­sis­tent with the prin­ci­ples and the gen­er­al pro­vi­sions of sec­tion 15 and the pro­vi­sions of this Chapter:

Pro­vid­ed that in the case of sup­ply of ser­vices, the sup­pli­er may opt for this rule, ignor­ing rule 30.