Important Compliance Due Dates in August 2026: Complete Tax And GST Calendar:

August 2026 is an important month for taxpayers, businesses, professionals, companies and employers. With the busy July filing season behind us, a series of important tax, GST, MCA and labour law deadlines are lined up for August.

Not meeting these deadlines may result in late fees, interest, penalties or delays in processing your returns. This is a straightforward guide to important compliance dates.

Compliance with Income Tax

7 August 2026 – TDS/TCS Deposit

You are required to pay the tax deducted / collected (TDS / TCS) during July-2026 to the Central Government by 7th August, 2026 (subject to applicable rules).

This applies to:

1. Employers

2. Companies

3. Partnership firms

4. Proprietorships

5. Government departments and other deductors

31 August 2026 – Due Date for ITR-3 and ITR-4

Eligible taxpayers who are not required to get their accounts audited must file:

1. ITR-3

2. ITR-4 (Sugam)

3. by 31 August 2026.

Don't assume every Income Tax Return is due on 31 July. Check which due date applies to you.

Missed the ITR-1 or ITR-2 Due Date?

The due date for ITR-1 and ITR-2 was 31 July 2026.

If you missed it, you can still file a Belated Return, but you may have to pay late filing fees, Interest or other applicable charges.

Before filing, make sure to check AIS, Form 26AS, TIS, Outstanding tax demand and Bank account validation.

Updated Return (ITR-U)

If you are eligible, you can also file an Updated Return (ITR-U) within the time allowed under the Income-tax Act. Additional tax may apply.

TDS/TCS Compliance

Quarter 1 TDS/TCS Return

The due date for filing the Quarter 1 TDS/TCS Statement was 31 July 2026.

If you have not filed it yet:

• File it as soon as possible.

• A late filing fee under Section 234E may apply.

• Other penalties may also apply in certain cases.

TRACES Portal Update

The TRACES portal has introduced new TDS certificate formats (including Form 131) for Tax Year 2026–27. Deductors should download and issue the applicable certificates using the updated system.

GST Compliance

August is also an important month for GST filings.

10 August 2026: It is the due date for GSTR-7 & GSTR-8

11 August 2026: It is the last date for Monthly GSTR-1

13 August 2026: It is the due date for GSTR-5 & GSTR-6

20 August 2026: It is the last date for Monthly GSTR-3B & GSTR-5A (where applicable)

GST Update: E-Way Bill Changes Postponed

GSTN has postponed the planned changes to the E-Way Bill system.

Businesses do not need to make any changes to their ERP software or business processes for now. A new implementation date will be announced later.

MCA (Ministry of Corporate Affairs)

Company Compliance Facilitation Scheme (CCFS) 2026

The Company Compliance Facilitation Scheme (CCFS) 2026 is available until 31 August 2026.

Companies with pending ROC filings should complete them before the scheme closes to enjoy the benefits available under the scheme.

Regular ROC Filings

Companies should also file the required ROC forms on time, such as DIR-12, MGT-14, INC-22, SH-7

where applicable.

EPF & ESI Compliance

15 August 2026: Before 15 August employers should deposit:

• EPF contributions

• ESI contributions

Documents to Check Before Filing Your ITR

1. AIS

2. Form 26AS

3. TIS

4. Form 16/Form 16A (if applicable)

5. Capital Gain Statement

6. Interest Certificates

7. Bank Account Validation

Key Compliance Dates- August 2026

August 2026 has a lot of big compliance deadlines. Eligible taxpayers can file their ITR-3 or ITR-4 until August 31, 2026. Timely GST filings, TDS/TCS payments, EPF/ESI contributions and MCA compliances should also be ensured by businesses.

Companies which have pending ROC filings are urged to avail of the Company Compliance Facilitation Scheme (CCFS) 2026 before its closure on 31 August 2026.

Timely compliance with these deadlines can help you avoid late fees, interest, penalties and unnecessary compliance issues.