| S. NO | Event Date | Act | Applicable Form | Obligation |
| 1 | 06-Oct-16 | Service Tax | Challan No.GAR7 | Epayment of Service Tax for month ending Oct for Cos & quarter ending Oct for others. |
| 2 | 07-Oct-16 | Income Tax | Form No.27C (TCS) | Submission of Forms received in Sep to IT Commissioner |
| 3 | 07-Oct-16 | Income Tax | Challan No.ITNS 281 | Payment of TDS/TCS deducted/collected in Sep |
| 4 | 10-Oct-16 | Excise | ER1 | Return for Non SSI assessees for Sep |
| 5 | 10-Oct-16 | Excise | ER2 | Return for EOUs for Sep |
| 6 | 10-Oct-16 | Excise | ER3 | Submission of return by SSI units for Sep quarter |
| 7 | 10-Oct-16 | Excise | ER6 | Return by units paying duty > 1 crore (CENVAT + PLA) for Sep |
| 8 | 12-Oct-16 | DVAT | BE2 | Advance information for 2nd fortnight of Oct of functions with booking cost > Rs 1 lakh in Banquet Halls,hotels etc. in Delhi |
| 9 | 15-Oct-16 | DVAT | DVAT20 | Payment of DVAT TDS for Sept |
| 10 | 15-Oct-16 | Income Tax | Form 27EQ | TCS Returns by ALL Deductors. |
| 11 | 15-Oct-16 | Providend Fund | Electronic Challan cum Return (ECR) | EPayment of PF for Sep |
| 12 | 15-Oct-16 | Income Tax | Form 16B | Issue of TDS certificate in case of payment /credit made in Aug for purchase of property u/s 194IA. |
| 13 | 15-Oct-16 | Income Tax | Form No.15CC | Statement by Banks etc. in respect of foreign remittances during the quarter |
| 14 | 17-Oct-16 | Income Tax | Form 3CD, 3CA/3CB. | Efiling Tax Audit Report |
| 15 | 17-Oct-16 | Income Tax | Form No. ITR 3,4 | Filing of I.T. Returns by Individuals ,HUFs (Audit applicable) |
| 16 | 17-Oct-16 | Income Tax | Form No ITR5 | Filing of I.T. Return by Firms,AOPs, BOIs (Audit applicable) |
| 17 | 17-Oct-16 | Income Tax | Form No ITR6 | Filing of I.T. Returns by Companies |
| 18 | 17-Oct-16 | Income Tax | Form No ITR7 | Filing of I.T. Return for Trusts, Political party etc. (Audit applicable) |
| 19 | 21-Oct-16 | ESI | ESI Challan | Payment of ESI of Sep |
| 20 | 21-Oct-16 | MVAT | MVAT Challan | Payment of MVAT & WCT TDS for Sep |
| 21 | 21-Oct-16 | DVAT | DVAT20 & Central | EPayment of DVAT & CST Tax for month ended Sep |
| 22 | 21-Oct-16 | MVAT | Form 231235 & CST 1 | Submission of MVAT return for month/quarter/half year ended Sep. |
| 23 | 22-Oct-16 | DVAT | DVAT 43 | Issue of DVAT Certificate for deduction made in Sept |
| 24 | 25-Oct-16 | DVAT | Form 16 and CST 1 | E Return of DVAT for the quarter ended Sep |
| 25 | 25-Oct-16 | Service Tax | Return No.ST3 | Filing of Half Yearly Service Tax return. (April to September) |
| 26 | 27-Oct-16 | DVAT | BE2 | Advance information for 1st fortnight of Nov of functions with booking cost > Rs 1 lakh in Banquet Halls,hotels etc. in Delhi |
| 27 | 28-Oct-16 | DVAT | DVAT 56 | Filing of DVAT Return Verification Form for quarter ended Sep where return not signed with digital signature. |
| 28 | 28-Oct-16 | DVAT | DVAT48 | Return of TDS for Sep quarter in DVAT48 |
| 29 | 28-Oct-16 | DVAT | Bank1 | Return by Scheduled Bank branches in Delhi engaged in sale of silver, gold, repossessed vehicles for quarter ending Sep |
| 29 | 29-Oct-16 | Companies Act | Form AOC-4 & MGT-7 | Companies to file financial statement and Annual Return where due date for holding of AGM is on or after 01.04.2016 without payment of addition fees. |
| 30 | 30-Oct-16 | Companies Act | Form no AOC4 XBRL | Balance Sheet in XBRL format |
| 31 | 30-Oct-16 | Companies Act | Form no AOC4 Nonxbrl | Balance Sheet in Non XBRL format |
| 32 | 30-Oct-16 | Income Tax | Form 27D | Issue of QuarterlyTCS Certificates by ALL Collectors |
| 33 | 30-Oct-16 | Income Tax | Form No.26QB | Payment of TDS for Purchase of Property for Sep |
| 34 | 30-Oct-16 | LLP Act | Form LLP-8 | Statement of Account and Solvency |
| 35 | 31-Oct-16 | Income Tax | Return No.24Q, 26Q, & 27Q | TDS returns for Sep Quarter by All deductors |
| 36 | 31-Oct-16 | Income Tax | Form 61 | Efiling of information of declarations in Form 60 received upto 30th Sep. |
| 37 | 31-Oct-16 | Maharastra Profession Tax | MTR6/Form IIIB | Payment & Monthly Return of Maharastra PT (Annual Liability 50000 or more) |
| 38 | 31-Oct-16 | Income Tax | Form No.15G/H | Efiling of form 15G/H in respect of the period 01.10.2015 to 31.03.2016 |
| 39 | 31-Oct-16 | Income Tax | Form No.15G/H | Efiling of form 15G/H for June Quarter |