| VAT | Form 2550Q | Q2 | July 25 |
| Q3 | October 25 |
| Q4 | January 25 (following year) |
| Percentage Tax | Form 2551Q | Q2 | July 25 |
| Q3 | October 25 |
| Q4 | January 25 (following year) |
| Income Tax | Form 1701Q / 1701A | Q2 | August 15 |
| Q3 | November 15 |
| Annual | April 15 (following year) |
| Expanded Withholding Tax – Monthly Filing | Form 0619E | July | August 10 |
| August | September 10 |
| September | October 10 |
| October | November 10 |
| November | December 10 |
| Expanded Withholding Tax – Quarterly Summary | Form 1601EQ | Q2 Summary | July 31 |
| Q3 Summary | October 31 |
| Q4 Summary | January 31 (following year) |
| Expanded Withholding Tax – Annual | Form 1604E | Annual | March 31 (following year) |
| Income Taxes Withheld on Compensation – Monthly Filing | Form 1601C | July | August 10 |
| August | September 10 |
| September | October 10 |
| October | November 10 |
| November | December 10 |
| Income Taxes Withheld on Compensation – Annual Filing | Form 1604C | Annual Filing | January 31 (following year) |
| Form 2316 | Annual Submission | January 28 (following year; duplicate copies) |
