| Event Date | Act | Applicable Form | Obligation |
| 05/09/2010 | Service Tax | Challan No.GAR-7 | Payment of Service Tax of previous month by Companies |
| 07/09/2010 | Income Tax | Form No.15G, 15H,27C | Submission of Form for no deduction of TDS/ TCS to IT Commissioner |
| 07/09/2010 | Income Tax | Challan No.ITNS-281/17 | Payment of TDS/TCS deducted/collected in previous month |
| 10/09/2010 | Excise | ER-1 | Monthly Return for Non SSI assessees for the month of August |
| 10/09/2010 | Excise | ER-2 | Monthly Return for Export Oriented Units for the month of August |
| 10/09/2010 | Excise | ER-6 | Monthly Return by units paying duty more than Rs 1 crore (CENVAT + PLA) for August |
| 15/09/2010 | Income Tax | Challan No.ITNS-280 | Payment of Advance Income Tax : Companies(45%), & Others : (30%) |
| 15/09/2010 | D-VAT | DVAT-20 | Deposit of DVAT TDS for the month of Aug |
| 21/09/2010 | M-VAT | Form 231-235 & CST 1 | Submission of MVAT return for Month ending 31-08-2010 |
| 21/09/2010 | M-VAT | MVAT Challan | Payment of WCT TDS under MVAT for the month August-2010 |
| 22/09/2010 | D-VAT | DVAT - 43 | Issue of DVAT Certificate for deduction made in Aug |
| 25/09/2010 | D-VAT | E-Return | E- Return of VAT for the month of Aug by monthly dealer |
| 28/09/2010 | D-VAT | DVAT-20 & Central | Deposit of VAT & CST Tax for the month of Aug |
| 28/09/2010 | D-VAT | 16 & 1 & Ack | Physical Return of VAT & CST for the month of Aug by monthly dealer |
| 30/09/2010 | D-VAT | DVAT-51 | DVAT-51 Filing for Apr to Jun quarter |
| 30/09/2010 | Income Tax | Form 3CD, 3CA/3CB. | Obtaining Tax Audit Report |
| 30/09/2010 | Income Tax | Form No. 26QAA | Return by Banks for interest upto Rs.5000 for September Quarter |
| 30/09/2010 | Income Tax | Form No. ITR- 3,4 | Filing of I.T. Returns by Individuals ,HUFs (Audit applicable) |
| 30/09/2010 | Income Tax | Form No ITR-5 | Filing of I.T. Return by Firms,AOPs, BOIs(inc FBT) (Audit applicable) |
| 30/09/2010 | Income Tax | Form No ITR-6 | Filing of I.T. Returns by Companies (including FBT) |
| 30/09/2010 | Income Tax | Form No ITR-7 | Filing of I.T. Return for Trusts, Political party etc.(inc FBT) (Audit applicable) |
| 30/09/2010 | Income Tax | Form No ITR -8 | Filing of FBT return of Audit Cases (Only FBT Return) |