First, What Is Advance Tax?
Advance tax is essentially a 'pay as you earn' system for income tax. Instead of paying your entire tax liability in a lump sum at the end of the financial year, the government requires you to pay it in instalments throughout the year in which you earn the income.
This ensures a steady flow of revenue for the government and prevents a heavy financial burden on taxpayers at year-end. If your total tax liability for the year is estimated to be ₹10,000 or more, you are generally required to pay advance tax.
Who Is Required to Pay?
The rules for advance tax apply to a wide range of taxpayers. This includes salaried individuals who have other sources of income not fully covered by Tax Deducted at Source (TDS), such as rental income, capital gains, or interest. Freelancers, consultants, and business owners are also liable to pay advance tax if their tax payable exceeds the ₹10,000 threshold. Even NRIs who earn taxable income in India need to comply. However, there is an important exception: resident senior citizens (aged 60 and above) who do not have any income from a business or profession are exempt from paying advance tax.
The September 15 Deadline Explained
The Income Tax Department has set four key dates for advance tax payments. September 15, 2026, is the deadline for the second instalment for the financial year 2026-27 (which corresponds to Assessment Year 2027-28). By this date, you are required to have paid a cumulative total of at least 45% of your total estimated tax liability for the year. This figure includes the 15% you should have already paid by the first deadline on June 15. So, if you are paying for the first time in September, you must pay the full 45%. If you paid the first instalment, you need to pay the difference to reach the 45% mark.
How to Calculate Your Instalment
Calculating your advance tax might seem daunting, but it can be broken down into simple steps. First, estimate your total income from all sources for the entire financial year (April 1, 2026, to March 31, 2027). This includes your salary, freelance income, interest, capital gains, and any other earnings. Next, subtract any applicable deductions you plan to claim, such as those under Section 80C or 80D. Apply the current income tax slab rates to this net taxable income to find your total estimated tax for the year. From this amount, subtract any TDS that has been or will be deducted by your employer or clients. If the remaining amount is over ₹10,000, that is your advance tax liability. For the September 15 deadline, ensure that the total amount you have paid so far is at least 45% of this final number.
The High Cost of Missing the Deadline
Failing to pay or underpaying your advance tax instalments comes with interest penalties under the Income Tax Act. Specifically, Section 234C levies interest for the deferment of instalments. If the cumulative tax you've paid by September 15 is less than 45% of your total liability, you will be charged simple interest at 1% per month on the shortfall amount for a period of three months. Furthermore, if your total advance tax paid by the end of the financial year (March 31) is less than 90% of your final assessed tax, you could be liable for further interest under Section 234B. These charges are mandatory and cannot be waived, making timely payment a crucial part of financial discipline.
How You Can Pay Your Advance Tax
Paying your advance tax is a straightforward online process. You can make the payment through the official e-Filing portal of the Income Tax Department. You will need to use Challan 280, selecting 'Advance Tax' as the type of payment. You can complete the transaction using net banking, debit card, UPI, or other available online payment methods. After payment, be sure to save the challan receipt, as it serves as proof of payment and is required when filing your income tax return.
