September 1 Financial Changes: ITR Deadline, LPG e-KYC, Cylinder Prices And Bank Charges Explained

August 31 marks the end of the month, but it is also an important date for taxpayers and domestic LPG consumers, with certain filing and verification requirements due today. September, meanwhile, will bring the usual monthly reviews of LPG and aviation fuel prices, while bank customers could see service charges change depending on their lender.

There are also a few tax and GST deadlines spread across September that businesses and taxpayers will need to keep track of. One change that has received attention among fixed deposit investors, however, does not begin next month, the Reserve Bank of India's revised rules for bulk deposits take effect from October 1, 2026.

August 31 Deadlines: ITR Filing And LPG e-KYC

Taxpayers with income from business or profession who are not required to undergo a tax audit have until August 31 to file their income tax returns for the relevant assessment year under the revised tax calendar. For other individual taxpayers who do not fall under special categories, the regular filing deadline was July 31.

Missing the applicable deadline does not close the filing window altogether. A belated return can generally be filed until December 31, 2026, or before the assessment is completed, whichever is earlier.

However, filing late can attract a penalty. The fee is Rs 1,000 where total income does not exceed Rs 5 lakh and Rs 5,000 where total income is above Rs 5 lakh.

Domestic LPG consumers also need to take note of August 31 if Aadhaar-based biometric e-KYC is still pending. Oil marketing companies have been asking customers to complete the verification, either through the relevant digital channels or by visiting their LPG distributor.

The effect of not completing the verification can depend on the consumer's circumstances and applicable subsidy or supply rules. Customers should therefore check the latest instructions issued by their LPG provider instead of assuming that bookings or supplies will automatically stop.

September 1: LPG, ATF Prices And Bank Charges In Focus

LPG prices are generally reviewed at the beginning of every month, making September 1 the date when consumers can expect the latest domestic and commercial cylinder prices to be announced.

A monthly review does not necessarily mean prices will rise. Rates can remain unchanged or move higher or lower depending on government pricing decisions and other factors. Any increase in domestic LPG prices would affect household budgets, while commercial cylinder prices are particularly relevant for restaurants and other businesses where cooking gas is a recurring operating expense.

Aviation turbine fuel (ATF) also undergoes regular monthly price revisions. Since fuel is a significant cost for airlines, a rise in ATF prices can put pressure on their operating expenses. It does not, however, mean airfares will increase by the same amount, as ticket prices also depend on demand, capacity and other charges.

Bank customers should similarly check whether their lender has announced any changes to service charges. Banks can revise fees for ATM transactions, cash handling, account-related services and other facilities, but these changes are not uniform across the industry.

Customers who frequently cross free transaction limits or use chargeable banking services should refer to their bank's latest schedule of charges rather than assume that a common revision will apply from September 1.

Bulk FD Rules Begin From October 1

The RBI's revised framework for bulk deposits should not be confused with the September changes.

From October 1, 2026, banks will have to disclose interest rates for bulk deposits of Rs 3 crore or more on their websites on every business day. They will also have to offer the same

rate across branches for deposits within the same applicable category accepted on the same date.

The changes are aimed at large depositors and do not mean existing retail fixed deposits will be repriced from October. For investors dealing with larger deposits, the new disclosure requirements should make it easier to compare rates offered by banks.

September Tax And GST Deadlines

The month also has several routine compliance dates. TDS/TCS payment for August is due on September 7, while the second instalment of advance tax is due on September 15.

Eligible monthly filers need to submit GSTR-1 by September 11, followed by GSTR-3B by September 20. Several tax audit and other compliance deadlines fall on September 30.

For individuals and households, the most immediate dates are therefore August 31 for applicable ITR filings and pending LPG e-KYC. Once September begins, consumers can check the latest LPG and ATF prices, while bank customers should keep an eye on any lender-specific changes to service charges.

The RBI's bulk-deposit changes are separate and will come into effect from October 1, rather than September 1.

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