Advance Tax 2026: Due Dates, Calculation, 234B/234C

📋🧾 Who Must Pay Advance Tax?

Advance tax is income tax you pay in instalments through the year, instead of one lump sum at the end. The rule is simple: if your total tax for the year will cross ₹10,000 after TDS, you have to pay it in advance.

This catches income that no employer deducts TDS from. Think rent, capital gains from shares or mutual funds, FD interest, freelance fees, or lottery winnings.

A fully salaried person usually does not pay advance tax, because the employer already deducts TDS every month. But the moment you add side income your employer does not know about, the duty shifts to you.

The ₹10,000 figure is the total tax for the year, not your income. So a person earning modestly from many small sources can still cross it once you add up the tax on everything.

The system exists so the government collects tax steadily across the year. For you, the upside is that you never face one frightening bill in March.

If you are unsure whether you cross the line, add up the tax on every income source for the year. If that total beats ₹10,000 after TDS, the rules below are for you.

📝🧾 Advance Tax in One Line

The meaning of advance tax is right there in the name. You pay your income tax in advance, across the year, rather than all at once after it ends.

It applies to income that escapes regular TDS, and it keeps both you and the government on a steady footing. The rest of this guide shows exactly when, how much, and how to pay.

Whether you are a freelancer, a landlord, or a salaried person with side income, the same four dates and the same ₹10,000 threshold apply. Knowing them turns tax from a yearly scramble into a simple routine.

📅🧾 Advance Tax Due Dates and How Much to Pay

Advance tax is paid across four dates in the financial year. Each date has a cumulative target, so by March you have paid 100%.

Miss a date or pay short, and interest starts running on the gap. The dates below are the same every year, so you can plan around them.

The percentages are cumulative, not separate. By 15 September you should have paid 45% in total, which includes the 15% from June, not 45% on top of it.

If a due date falls on a Sunday or bank holiday, the next working day is accepted. But it is safer to pay a day or two early than to test that rule.

ℹ️👴 Senior citizens get a break

👥🧾 Real Situations Where Advance Tax Applies

The rule sounds abstract until you see who it actually catches. Most people are surprised to learn they fall under it.

A freelancer or consultant whose clients do not cut full TDS owes advance tax on the gap. So does a landlord whose rent crosses the slab.

A salaried person who sold shares or mutual funds at a profit owes advance tax on that capital gain. The employer's TDS never accounted for it.

Even FD interest can trigger it. Banks cut TDS at only 10%, so if your slab is higher, the shortfall becomes advance tax you must pay yourself.

Pensioners with large interest income often miss this. A pension may have TDS, but the FD interest stacked on top frequently does not.

🧮🚀 How to Calculate Your Advance Tax

You do not need software for this. The estimate is rough by design, because nobody knows their exact yearly income in June.

Work it out once, then adjust each instalment as your real income becomes clearer.

The key is to estimate honestly rather than low. Underestimating just to pay less now means interest later, which costs more than paying correctly.

Keep a simple note of what you estimated and paid each quarter. When filing season arrives, that note makes reconciling everything far easier.

🧮⏱️ Short on time?

💻🚀 How to Pay Advance Tax Online

Payment is fully online through the income tax portal. You do not need a CA or a bank visit for this part.

Keep the challan that comes at the end. That receipt is your proof the instalment was paid on time.

The portal accepts net banking, UPI, debit card and even payment at authorised bank counters. Most people use UPI or net banking for speed.

There is no extra fee for paying advance tax online. The only cost is the tax itself, so ignore any site that asks for a service charge to pay it for you.

📉📈 Interest on Late Advance Tax: Section 234B and 234C

Miss the targets and two interest sections can apply. Both charge 1% per month, simple interest, not 1.5%.

234C is for paying an instalment late or short during the year. 234B is for ending the year having paid less than 90% of your total tax.

The interest is not a fine you can argue down. It is automatic and calculated to the month, so even a few days into a new month counts as a full month.

This is why paying a little extra early is smarter than cutting it fine. The interest on a shortfall almost always costs more than the cash flow you save by delaying.

Both sections can apply together in a bad year. You can owe 234C for missing quarterly targets and 234B for the year-end shortfall on the same return.

⚠️🔔 One change to know for FY 2026-27

📈📈 What About Capital Gains You Cannot Predict?

Nobody can guess a share sale in June that happens in December. The law accepts this and does not punish you for it.

When a capital gain actually lands, you add the tax on it to your next instalment. You are not penalised for not predicting it earlier.

The same logic covers lottery winnings, a sudden bonus, or a one-off freelance project. You fold the tax into the instalment after the income arrives.

What you cannot do is ignore it once it has happened. A large gain in December that you leave untaxed until filing will attract 234C interest for those months.

🧮📈 How Section 234C Interest Is Actually Calculated

234C interest looks scary but the maths is mechanical. It charges 1% per month on the amount you fell short by at each due date.

Say you should have paid ₹45,000 by 15 September but only paid ₹30,000. The ₹15,000 gap attracts 1% a month for three months until the next checkpoint.

Each missed checkpoint is treated separately. So the June, September and December shortfalls each carry their own interest clock running forward.

Because it is simple interest, the numbers stay small for small shortfalls. But on a large gap left for months, it quietly adds up to real money.

There is a small relief built in. If you pay at least 12% by June and 36% by September, a minor shortfall at those two dates is forgiven under the rules.

🏢📑 The Presumptive Scheme Shortcut (44AD and 44ADA)

Small businesses and professionals under the presumptive scheme get an easier deal. They do not split advance tax into four parts.

Instead, the entire advance tax can be paid in a single instalment by 15 March. This suits people whose income is hard to predict quarter by quarter.

Sections 44AD and 44ADA cover this, for eligible small businesses and professionals respectively. The ₹10,000 threshold still applies before the duty kicks in.

If this is you, mark just one date in the calendar: 15 March. Pay the full year's tax then and the quarterly rules do not apply.

One caution: if you miss even that single date, 234C interest applies to the whole amount. The simplicity comes with a hard deadline.

ℹ️💸 What if you overpay?

✅📅 Quick Checklist Before Each Due Date

A few minutes before each date saves a lot of interest later. Run through the same short list every quarter.

Re-estimate your income for the year, including any new side earnings since the last instalment. Adjust the figure up or down honestly.

Check whether any capital gain, bonus or large interest landed this quarter. If so, add its tax to this instalment.

Pay through the official portal, pick the right assessment year, and save the challan. That habit alone prevents most problems.

Finally, keep all four challans together in one folder. At filing time you will enter their details, and having them ready turns a chore into a two-minute job.

💡🧾 Why Advance Tax Is Easier Than One Big Bill

It is tempting to see advance tax as extra paperwork. In practice it makes your finances calmer, not harder.

Paying in four parts means you never face a single frightening tax bill at the year's end. The cost is spread across months you can plan for.

It also keeps you honest about your real income. Estimating four times a year means no nasty surprise when you finally file.

And if you overpay, the money comes back as a refund with interest. So the system rarely costs you anything beyond the tax you genuinely owed.

Most people who dread advance tax have simply never been walked through it. Once you have paid it twice, it becomes a quiet quarterly habit like any other bill.

The honest rule: estimate roughly, pay on the four dates, and top up when a big gain lands. That alone avoids almost all interest.

⚠️⚠️ Common Mistakes That Cost People Money

Most advance tax interest comes from avoidable errors, not genuine hardship. A few patterns repeat again and again.

The first is ignoring side income entirely. People assume salary TDS covers everything, then get an interest notice for the rent or capital gains they forgot.

The second is picking the wrong assessment year on the portal. The money goes in, but against the wrong year, so the system still shows a shortfall.

The third is forgetting to top up after a capital gain. A December share sale needs its tax added to the December or March instalment, not left for filing season.

The fourth is underestimating income to pay less now. It feels clever in June but costs more in interest by March, so honest estimates win.

The fifth is leaving the final March instalment to the very last day. Portals get busy near deadlines, and a failed payment at 11pm on 15 March still counts as late.

💼🧮 Salaried With Side Income: A Worked Example

Say your salary TDS is fully handled by your employer. Then you earn ₹3 lakh from freelance work on the side.

That ₹3 lakh has little or no TDS. The tax on it, if over ₹10,000, becomes advance tax you must pay on the four dates.

You estimate the tax on the side income, split it across the remaining instalments, and pay through the portal. Your salary stays on TDS as before.

When you file your return, both your salary TDS and your advance tax show up together. They add up against your total tax, and any small gap is settled then.

A common worry is double counting. You will not pay twice, because the return adds every payment together and only charges the difference.

❓Common Questions