Under Section 23 Persons not liable for registration
(1) The following persons shall not be liable to registration, namely: ––
(a) any person engaged exclusively in the business of supplying goods or services or both that are not liable to tax or wholly exempt from tax under this Act or under the Integrated Goods and Services Tax Act;
(b) an agriculturist, to the extent of supply of produce out of cultivation of land.
(2) The Government may, on the recommendations of the Council, by notification, specify the category of persons who may be exempted from obtaining registration under this Act.
Central Government vide Notification No. 05/2017-Central Tax, dt. 19-06-2017 has w.e.f 22nd June 2017 amended section 23 of CGST Act, 2017 to include the persons who are only engaged in making supplies of taxable goods or services or both, the total tax on which is liable to be paid on reverse charge basis by the recipient of such goods or services or both under section 9(3) of the CGST Act, 2017 in the category of persons exempted from obtaining registration under the aforesaid Act.