Understanding Advance Tax
Advance tax is essentially a 'pay-as-you-earn' system for income tax. Instead of paying a large lump sum at the end of the financial year, you pay your tax in installments. This system applies to any individual, including salaried employees, freelancers,
and business owners, whose total tax liability in a financial year is estimated to be ₹10,000 or more. The liability is calculated after accounting for any Tax Deducted at Source (TDS). This ensures a steady flow of revenue for the government and prevents a heavy financial burden on the taxpayer at year-end.
Who Needs to Pay by September 15?
If your estimated tax liability for the year exceeds ₹10,000, you are required to pay advance tax. This applies to income that doesn't typically have tax deducted at the source, such as earnings from a business or profession, rental income, capital gains, or interest on investments. Salaried individuals who have significant other income not covered by their employer's TDS must also comply. The only general exception is for resident senior citizens (aged 60 or above) who do not have any income from a business or profession; they are exempt from paying advance tax.
The September 15 Installment
The tax authorities have set a clear schedule for payments. The September 15, 2026, deadline is for the second installment of the financial year 2026-27. By this date, you are required to have paid a cumulative total of at least 45% of your total estimated advance tax for the year. This figure includes the first installment of 15% that was due on June 15. So, for the September payment, you need to pay the difference to bring your total contribution up to the 45% mark.
Your Pre-Payment Checklist
Before you proceed with the payment, it's vital to get your calculations right. First, accurately estimate your total income from all sources for the entire financial year (April 1, 2026, to March 31, 2027). Next, calculate your total tax liability based on the applicable income tax slab rates for the new or old regime. From this amount, subtract any TDS that has already been deducted or will be deducted. You can verify your TDS credits on your Form 26AS or Annual Information Statement (AIS) through the income tax portal. If the remaining liability is over ₹10,000, you must pay the advance tax installment.
How to Pay Online
The process of paying advance tax is straightforward and can be done online through the official Income Tax Department e-filing portal. You can navigate to the 'e-Pay Tax' section, which is available under 'Quick Links' on the homepage. After entering your PAN and verifying it with an OTP sent to your mobile, you need to select 'Income Tax' and then choose the Assessment Year as 2027-28 and the 'Type of Payment' as 'Advance Tax (100)'. You can then complete the payment using net banking, a debit card, UPI, or other available payment gateway options. Always remember to download and save the challan receipt as proof of payment.
Penalties for Missing the Deadline
Failing to pay the required advance tax installment on time, or underpaying it, attracts interest penalties. Under Section 234C of the Income Tax Act, interest of 1% per month is levied for three months on the amount of shortfall for the installment. Additionally, if less than 90% of the total tax liability is paid by the end of the financial year, a further interest of 1% per month is charged under Section 234B on the unpaid amount. These penalties are designed to ensure timely compliance, so it's financially prudent to pay on schedule.
















