What is Advance Tax and Who Should Pay It?
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, the government requires certain taxpayers to pay their tax in installments throughout the year. This ensures a steady
flow of revenue for the government and prevents a heavy year-end burden on taxpayers. You are liable to pay advance tax if your estimated tax liability for the financial year is ₹10,000 or more. This rule applies to all taxpayers, including salaried individuals, freelancers, and businesses. While salaried individuals often have their tax liability covered by Tax Deducted at Source (TDS) by their employer, they must pay advance tax if they have other income streams, like capital gains, rental income, or freelance work, that push their total liability over the ₹10,000 threshold after accounting for TDS. However, resident senior citizens (aged 60 and above) who do not have any income from business or profession are exempt from paying advance tax.
The Key Deadlines You Need to Know
For most taxpayers, the advance tax schedule is divided into four installments. Missing these deadlines or paying less than the required amount is what triggers interest penalties. For the financial year 2026-27, the deadlines and cumulative amounts to be paid are: By June 15, 2026: At least 15% of your total estimated tax. By September 15, 2026: At least 45% of your total estimated tax. By December 15, 2026: At least 75% of your total estimated tax. By March 15, 2027: 100% of your total estimated tax. It's important to reassess your income before each due date to ensure your payments are accurate, as changes in your financial situation can alter your required installment.
Interest for Delay: Section 234C Explained
Section 234C of the Income Tax Act deals with the interest charged for the deferment or delay in paying individual installments. If you fail to pay the required percentage of tax by the due dates mentioned above, you are liable to pay simple interest at a rate of 1% per month on the shortfall amount. For the first three installments (June, September, and December), the interest is charged for a period of three months on the amount you underpaid. For the final installment due in March, the interest is charged for one month. This interest is calculated from the due date of each installment until the date the shortfall is actually paid. Even a delay of a few days into the next month is considered a full month for interest calculation.
The Penalty for Major Shortfall: Section 234B Explained
While Section 234C penalises the delay in quarterly installments, Section 234B addresses a larger shortfall for the entire year. This interest is levied if you have either failed to pay advance tax altogether, or if the total advance tax you've paid during the financial year is less than 90% of your 'assessed tax'. Assessed tax is your total tax liability for the year after deducting any TDS. If you fall into this category, you are liable to pay simple interest at 1% per month on the deficit (the difference between the assessed tax and the advance tax paid). This interest clock starts ticking from April 1st of the assessment year (e.g., April 1, 2027, for income earned in FY 2026-27) and runs until the date you pay the full tax amount.
How Interest is Calculated: A Simple Example
Let's assume your total tax liability for the year, after TDS, is ₹1,00,000. Under Section 234B, you need to have paid at least ₹90,000 (90%) as advance tax by March 31. Suppose you only paid ₹50,000. The shortfall is ₹50,000. Interest under Section 234B will be charged at 1% on this ₹50,000 for every month (or part of a month) from April 1 until you pay the balance. If you pay it on July 20th, you will owe interest for four months (April, May, June, July), which amounts to ₹2,000 (₹50,000 x 1% x 4). In addition, if you missed the quarterly deadlines, you would also be charged interest under Section 234C for each specific installment's shortfall. For example, if you paid nothing by the June 15 deadline when you should have paid at least ₹15,000, you would owe interest of ₹450 (1% of ₹15,000 for 3 months) for that default alone.
