Time Limit for issuing supplimentary invoice

Supplementary invoice regarding what?

Under GST Act

Yes, within 6 months from the end of financial year in which invoice raised

Can we raise supplimentary invoice for 2017-18 FY now ?

No you cant raise invoice for FY 2017-18

What is the difference between revised invoice and supplimentary invoice?

Revised invoice may be issued by taxable person in relation to any invoice already issued by him. Supplementary tax invoice has to be issued by taxable person in case where any deficiency is found in a tax invoice already issued by a taxable person.

If GST was not collected in the original invoice,

Is it deficiency ?

What option is best in this case ?

Revised or supplimentary?

You have to issue supplementary invoice

What are the general reasons for issuing

Revised invoice

Supplimentary invoice?

SUPPLEMENTARY TAX INVOICE AND REVISED INVOICE IN GST (taxmanagementindia.com)

It may be due to change in rate in the original contract or order.It may also due to other factors like change in items and bill of quantities in the original order.

If GST was not collected in the original invoice,

Is it deficiency ?

What option is best in this case ?

Revised or supplimentary?

Dear Eswar Reddy
As per section 31(3) (a) R/w rule 53(2) The Revised Tax Invoice can be Issued only in case where Registered person who has been granted registration with effect from date earlier than the date of issuance of certificate of Registration to him , may issue revised tax Invoice in respect of taxable supplies effected during the period starting from the effective date of registration till the date of issuance of Certificate of Registeration.
Hence in GST the Revised Invoice can issue only against those invoices which being issue by registered person from effective date of registration upto to date of issuance of Certificate of Registeration.

As per Section 34(3)
In case of GST not collected or short charge & collected in invoice Debit Note need to be issued.
As per Explanation under said section " debit not ' shall include a supplementary invoice, hence debit note can said as supplementary invoice.

Now come 2nd Leg Query:

Time Limit To Issue Debit Note & ITC available to Recepient :

Clause 118 of the Bill
seeks to amend sub-section (4) of section
16 of the Central Goods and Services Tax
Act so as to delink the date of issuance of
debit note from the date of issuance of the
underlying invoice for purposes of
availing input tax credit.

Hence the time limit to avail ITC on debit note will be counted from the date of Issue of Debit Note (Can refer Circular 160/16/2021 GST )