| S.No. | Due date | Compliance | Law | Applicable Form |
| 1 | Thursday, June 04, 2020 | GST payment for April’20 by having turnover of more than Rs. 5 cr in previous financial year.(without interest) | GST | GSTR-3B |
| 6 | Wednesday, June 24, 2020 | GST Payment for Feb, March & April by taxpayers having an aggregate turnover of more than Rs. 5 cr in previous financial year( WITH INTEREST @ 9%p.a) | GST | GSTR-3B |
| 7 | Saturday, June 27, 2020 | GST Payment for May’20 by taxpayers having an aggregate turnover of more than Rs. 5 cr in previous financial year. | GST | GSTR-3B |
| 8 | Monday, June 29, 2020 | GST Payment for Feb’20& Mar’20 by taxpayer with turnover between 1.5-5 cr. | GST | GSTR-3B |
| 9 | Tuesday, June 30, 2020 | GST Payment for April’20 by taxpayer with turnover between 1.5-5 cr. | GST | GSTR-3B |
| 10 | Tuesday, June 30, 2020 | GST Payment for Feb’20 by taxpayer with turnover upto 1.5 cr. | GST | GSTR-3B |
| 15 | Tuesday, June 30, 2020 | Opt for Composition Scheme for FY 20-21. Existing ones are not required to apply again. | GST | GST CMP-02 |
| 16 | Tuesday, June 30, 2020 | Online Application for Letter of Undertaking (LUT) for Exports & Supplies to SEZ without payment of tax in 2020-21. | GST | GST RFD-11 |
| 17 | Tuesday, June 30, 2020 | Return for March quarter of Goods sent to or received from job-worker. | GST | ITC-04 |
| 18 | Tuesday, June 30, 2020 | Monthly return of Outward Supplies for March (Turnover exceeding 1.5 Cr.in previous year) | GST | GSTR-1 |
| 19 | Tuesday, June 30, 2020 | Monthly return of Outward Supplies for April (Turnover exceeding 1.5 Cr.in previous year) | GST | GSTR-1 |
| 20 | Tuesday, June 30, 2020 | Monthly return of Outward Supplies for May (Turnover exceeding 1.5 Cr.in previous year) | GST | GSTR-1 |
| 21 | Tuesday, June 30, 2020 | Quarterly return for January to March for quarterly filers. | GST | GSTR-1 |
| 22 | Tuesday, June 30, 2020 | Monthly Return by Non-resident taxable person for Feb, Mar, April & May. | GST | GSTR-5 & 5A |
| 23 | Tuesday, June 30, 2020 | Monthly Return of Input Service Distributor for March, April & May. | GST | GSTR-6 |
