What is the GSTR-3B due date in August 2026?

For monthly filers, GSTR-3B for Jul 2026 is due on 20 August 2026. QRMP taxpayers file quarterly, by the 22nd or 24th of the month after the quarter depending on their state.

What is the GSTR-1 due date in August 2026?

For monthly filers, GSTR-1 for Jul 2026 is due on 11 August 2026.

When is TDS to be deposited in August 2026?

TDS deducted in Jul 2026 is to be deposited by 7 August 2026.

Do these dates include extensions?

No. They are the default statutory dates. When the government extends a date, the notification overrides what is shown here.

COMPLIANCE CALENDAR

GST, TDS, income tax and ROC due dates: August 2026

The main statutory due dates in August 2026 are: 7 August: Challan 281N; 11 August: GSTR-1; 15 August: Form 131; 20 August: GSTR-3B; 31 August: ITR. These are the default dates; an extension notified by CBDT, CBIC or MCA overrides them, and a date that falls on a Sunday or public holiday moves to the next working day.

Fri

Challan 281N · Deposit TDS / TCS · Jul 2026

Mon

GSTR-7 / GSTR-8 · GSTR-7 (GST TDS) / GSTR-8 (e-commerce TCS) · Jul 2026

Tue

GSTR-1 · GSTR-1 (monthly) · Jul 2026

Thu

GSTR-6 · GSTR-6 (input service distributor) · Jul 2026
IFF · IFF: optional B2B invoices (QRMP) · Jul 2026

Sat

ECR / ESI challan · PF and ESI payment with ECR · Jul 2026
Form 131 · Issue Form 131 (TDS certificate) · Q1 FY 2026-27Forms 130 and 131 replace Form 16 and Form 16A.

Thu

GSTR-3B · GSTR-3B (monthly) with tax payment · Jul 2026Table 3.1 is locked to GSTR-1 from the July 2025 period: correct GSTR-1 through GSTR-1A before filing.

Tue

PMT-06 · PMT-06 monthly tax payment (QRMP) · Jul 2026

Mon

ITR · Income-tax return: business or profession without tax audit, and trusts not requiring audit · FY 2025-26Finance Act 2026 made 31 August the due date for these cases from AY 2026-27.

* Falls on a Sunday, so the next working day applies. ROC dates assume the AGM is held on 30 September.

Common questions

What is the GSTR-3B due date in August 2026?: For monthly filers, GSTR-3B for Jul 2026 is due on 20 August 2026. QRMP taxpayers file quarterly, by the 22nd or 24th of the month after the quarter depending on their state.
What is the GSTR-1 due date in August 2026?: For monthly filers, GSTR-1 for Jul 2026 is due on 11 August 2026.
When is TDS to be deposited in August 2026?: TDS deducted in Jul 2026 is to be deposited by 7 August 2026.
Do these dates include extensions?: No. They are the default statutory dates. When the government extends a date, the notification overrides what is shown here.

Track August 2026 for every client

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