E-commerce operators GSTR-8 TCS statement must be filed by the 10th of the following month

India's indirect-tax calendar turns on the 10th of every month, and 10 August 2026 is the next hard stop. That Monday is the statutory due date for GSTR-8, the monthly statement of Tax Collected at Source (TCS) that every GST-registered e-commerce operator must file under Section 52 of the Central Goods and Services Tax Act, 2017, for the July 2026 tax period. It is also the first equity trading session of the week following the Reserve Bank of India's decision on 5 August 2026 to hold the repo rate at 5.25%, so the days ahead pair a firm compliance deadline with a market still digesting a fourth consecutive policy pause.

This watchlist maps what actually falls due, what is confirmed on the official record, and what is not. Every date and figure below is drawn from the GST Network's own FAQ, the CGST Act as hosted on indiacode.nic.in, the RBI's 5 August 2026 policy statement, and the income-tax department's advance-tax schedule. Where a calendar item cannot be verified against a primary source, it has been left out rather than guessed.

Statutory Deadlines

The headline deadline is GSTR-8. Per the GST Network FAQ at gst.gov.in, an e-commerce operator collects TCS at 1% of the net value of taxable supplies made through its platform — 0.5% under CGST plus 0.5% under SGST on intra-State supplies, or 1% IGST on inter-State supplies — and reports it in GSTR-8 by the 10th day of the succeeding month. For the July 2026 period, that deadline is 10 August 2026. "Net value of taxable supplies" means the aggregate value of taxable supplies of goods or services made through the operator during the month, reduced by supplies returned to the suppliers.

A worked example makes the 1% mechanic concrete. Assume an operator routes Rs 1,00,00,000 of taxable supplies through its platform in July 2026, of which Rs 5,00,000 is returned:

The 10th is a crowded date because GSTR-7 — the TDS return filed by deductors under Section 51 — shares the same due date. The broader July-2026 GST return schedule then runs as follows:

Late filing is not cost-free. Under Section 47 of the CGST Act, a delayed GSTR-8 attracts a late fee of Rs 100 per day under the CGST Act plus an equal amount under the respective State Act — Rs 200 per day in aggregate — running from 11 August 2026 until the statement is filed. Any TCS paid after the due date additionally carries interest at 18% per annum under Section 50. The briefing note from the GST Network is explicit that a late fee applies for every tax period from October 2022 onward, so operators cannot treat the 10th as a soft target. For readers new to the mechanism, our TCS glossary entry and TDS explainer set out how collection and deduction at source differ.

The 10 August cluster is not the only income-tax milestone worth diarising. The second advance-tax instalment for FY 2026-27 falls on 15 September 2026, by which date 45% of the estimated annual liability must be paid under Section 211. The full Section 211 ladder for the year runs:

Taxpayers who miss an instalment face interest at 1% per month under Sections 234B and 234C, so the 15 September 2026 date belongs on the same watchlist as the GST deadlines. Our advance-tax glossary page and self-assessment-tax entry explain how the two settle a year's liability. There is no separate Form 15G or Form 15H deadline tied to 10 August 2026 — those self-declarations for nil TDS on interest are ordinarily filed at the start of the financial year — so no such deadline has been listed here.

Market Events

The defining market event of the week is already behind us but still driving the tape. On 5 August 2026 the RBI Monetary Policy Committee voted unanimously to keep the policy repo rate at 5.25%, its fourth consecutive pause after holds in February, April and June 2026. Governor Sanjay Malhotra said the committee wanted "greater clarity" on the inflation outlook before acting, noting that headline inflation, while above the 4% target, was driven by food and fuel rather than any generalised price pressure. Our report on the RBI MPC decision carries the full vote breakdown.

The corridor around the repo rate is unchanged: the Standing Deposit Facility sits at 5.00%, the Marginal Standing Facility and Bank Rate at 5.50% each, with the stance kept neutral. The committee also nudged its FY 2026-27 projections at this meeting, raising real GDP growth by 10 basis points to 6.7% and lowering CPI inflation by 10 basis points to 5.0%. For equity and bond desks, the practical takeaway is that the next scheduled policy trigger is the MPC review of 5-7 October 2026; until then, external benchmark-linked lending rates stay anchored to a 5.25% repo, and floating-rate borrowers see no reset from this cycle.

For long-horizon investors, a policy pause is a reminder that time in the market matters more than timing a rate move. A neutral 5.25% repo keeps deposit and debt yields range-bound, which is when disciplined equity contributions tend to do the heavy lifting. Readers can model that with our SIP calculator, stress-test a one-time deployment with the lumpsum calculator, or build in annual raises using the step-up SIP calculator — each takes the same rate environment the MPC just reaffirmed and projects it forward. No SEBI board meeting or other regulator event has been confirmed on the official record for the 9-10 August 2026 window, so none has been added to this section.

The primary market, by contrast, remains active. Two recent offers on our desk — Molbio Diagnostics, which set a Rs 768-807 band for its Rs 940 crore IPO, and Dhoot Transmission, which opened a Rs 3,067 crore IPO at a Rs 829-871 band — illustrate that issuance is still finding demand at a 5.25% repo. Subscription and allotment timelines for live offers are the primary-market dates to track alongside the compliance calendar.

Earnings

No company results have been confirmed on our verified calendar for the 9-10 August 2026 window. In keeping with a zero-hallucination policy for financial content, this watchlist does not publish an earnings schedule that cannot be sourced to a primary filing. Investors tracking quarterly results should rely on the board-meeting intimations and outcome filings that listed companies submit to the stock exchanges under Regulation 33 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, rather than on any calendar reproduced without a citation.

What can be said with confidence is that the results season interacts with the compliance calendar in one concrete way: companies finalising July-quarter numbers are simultaneously closing their July 2026 GST returns, with GSTR-3B due 20 August 2026. For a listed e-commerce operator, the GSTR-8 filing on 10 August 2026 and the GSTR-3B on 20 August 2026 are both statutory obligations that sit inside the same reporting month, and any provision or interest cost from a late TCS remittance would surface in the accounts. The discipline that keeps a 10 August filing on time is the same discipline that keeps the books clean for results day.

FAQ

What is GSTR-8 and who must file it?

GSTR-8 is the monthly statement of Tax Collected at Source filed by every GST-registered e-commerce operator under Section 52 of the CGST Act, 2017. It reports the value of taxable supplies made through the operator's platform and the TCS collected on them. The operator must be registered under Section 24(x), and the return is filed even where no supplies were routed in a given month.

What is the GSTR-8 due date for July 2026?

The due date is 10 August 2026 — the 10th day of the month succeeding the July 2026 tax period, as specified in the GST Network FAQ at gst.gov.in. The same 10th-of-the-month rule applies every month, so the August 2026 period's GSTR-8 will fall due on 10 September 2026.

What is the TCS rate under GST for e-commerce operators?

The rate is 1% of the net value of taxable supplies — 0.5% CGST plus 0.5% SGST on intra-State supplies, or 1% IGST on inter-State supplies. "Net value" is the aggregate value of taxable supplies made through the operator during the month, reduced by supplies returned to suppliers, per Section 52 of the CGST Act.

What happens if GSTR-8 is filed after 10 August 2026?

A late fee of Rs 100 per day under the CGST Act plus an equal Rs 100 per day under the State Act — Rs 200 per day in total — accrues under Section 47 from 11 August 2026 until filing. Any TCS paid late also carries interest at 18% per annum under Section 50. Per the GST Network, the late fee applies for every tax period from October 2022 onward.

Can a supplier claim credit for the TCS collected by the operator?

Yes. The TCS reported in GSTR-8 is credited to the supplier's electronic cash ledger and can be used to discharge output tax liability. The supplier reconciles the amount against the operator's filing, which is why an accurate and timely GSTR-8 on 10 August 2026 matters to every seller on the platform, not just the operator.

Did the RBI change interest rates this week?

No. On 5 August 2026 the Monetary Policy Committee held the repo rate at 5.25% in a unanimous vote — the fourth consecutive pause of 2026. The SDF stands at 5.00% and the MSF and Bank Rate at 5.50% each. The next scheduled MPC review is 5-7 October 2026.

Are there any other tax deadlines close to 10 August 2026?

Yes. GSTR-7 for TDS deductors is also due 10 August 2026, GSTR-1 on 11 August 2026, and monthly GSTR-3B on 20 August 2026. Looking further out, the second advance-tax instalment for FY 2026-27 — 45% of estimated liability under Section 211 — is due 15 September 2026.