Chapter IV under the CGST Act covers four major sections relating to the Time as well as the Value of supply. The GST laws have provided distinct provisions to determine the time of supply for goods or services. These provisions are as follows:
Sec 12: Time of Supply of Goods
Sec 13: Time of supply of services
Sec 14: Change in rate of tax in respect of supply of goods or services.
Sec 15: Value of Supply
As we discussed in earlier articles, the normal time of supply rules changes if there is a change in the tax rate. In this case time of supply will be determined as per the provisions of Secc 14. In this article, we are going to dive deep into Sec 14 and understand the details in the given section.
To summarise:
| Invoice issued before tax rate change date | Payment received before the tax rate change date | Time of supply date | Tax rate applicability |
| No | No | Date of invoice or payment whichever is earlier | New tax rate |
| No | No | Date of invoice issuance | Old tax rate |
| Yes | No | Date of payment receipt. | Old tax rate |
Normally the receipt of payment date is the date of credit in the bank account of receipt or the date of entry of payment on books whichever is earlier. But here, the date of credit in the bank account will be relevant only if such credit is after four working days from the date of the tax rate change.
To summarise
| Invoice issued before tax rate change date | Payment received before the tax rate change date | Time of supply date | Tax rate applicability |
| Yes | Yes | Date of payment or invoice whichever is earlier | Old tax rate |
| Yes | No | Date of payment receipt | New tax rate |
| No | Yes | Date of invoice issuance |
New tax rate |
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