Income Tax Notice Interest Calculator for Section 220(2)

A Section 156 notice is the formal demand the Income Tax Department issues when an order under the Act leaves you with an amount payable, whether tax, interest, penalty or any other sum. It can follow the processing of your return under Section 143(1), a scrutiny assessment, a reassessment, or a rectification.

The notice states the amount due and gives you a deadline to pay, normally 30 days from the date it is served. Intimations under Sections 143(1), 200A(1) and 206CB(1) that show an amount payable are themselves treated as demand notices under Section 156. Receiving one does not mean you have done anything wrong; it simply formalises an outstanding liability that some order under the Act has created.

Section 220(2) charges simple interest at 1% for every month or part of a month on the amount of the demand that remains unpaid after the 30-day window. This works out to 12% a year, but it is calculated monthly, and crucially any part of a month counts as a full month.

The 1% rate has applied since 1 April 1989; you may see references to an older 1.5% rate, but that only concerns periods before that date and is irrelevant to any current demand. The interest is simple, not compound, so it does not accumulate on itself, and it is charged automatically without the assessing officer needing to pass a separate order.

The interest starts on the day immediately after the 30-day payment window ends, not on the date of the notice itself. So if your notice is dated 10 May, your 30 days end on 9 June, and interest begins on 10 June if you have not paid by then.

This is a common and costly misunderstanding: people count from the notice date and overstate their interest by a month, or worse, assume interest is already running when they still have days left in the window. The calculator computes the window end and the interest start date precisely from your notice date, so you know exactly when the meter begins.

The wording of Section 220(2) is deliberate: interest is charged for every month “or part of a month.” This means the interest does not accrue smoothly day by day. The instant you cross into a new month of delay, even by a single day, that entire month is charged at the full 1%.

So a delay of two months and one day is treated as three months. This rounding up is the single most misunderstood feature of the provision, and it can add a full percentage point that a day-count estimate would miss. The practical consequence is that the exact day you pay matters, because paying just before a month boundary can save a whole month of interest.

No, they are completely separate. Interest under Sections 234A, 234B and 234C relates to late filing of your return and shortfalls in advance tax, and it is calculated up to the point the demand is raised, so it is already built into the demand figure.

Section 220(2) interest is charged only for the delay in paying that demand after it has been raised and the 30-day window has passed. So the two can both appear in your total: the 234 interest inside the original demand, and the 220(2) interest on top for paying late. This calculator deals only with the 220(2) delay interest; the 234 interest is a separate calculation on the underlying tax.

Under the first proviso to Section 220(2), if a later order under Section 154, 155, 250, 254, 260, 262 or 264 reduces your demand, the interest is reduced accordingly and any excess interest you already paid is refunded to you. So if you paid interest on a large demand and then won a partial appeal that cut it down, you do not lose the interest paid on the part that was wrongly demanded.

The department recomputes the interest on the reduced figure and refunds the difference, generally with additional interest under Section 244A. This calculator shows you the recomputed interest and the refund due, so you can verify the department has given proper effect to your appeal.

If a reassessment or a revision order increases your demand rather than reducing it, the interest under Section 220(2) applies to the higher amount. In practice, additional interest is charged on the enhanced portion for the period of delay.

So an increase in the demand carries an increase in the interest, mirroring the treatment of a reduction. The principle is symmetrical: the interest always tracks the amount actually found to be due after all orders. When you enter a revised demand higher than the original in this calculator, it computes the interest on the higher figure so you can see the additional liability the enhancement creates.

Yes. Under Section 220(6) and the department’s instructions, if you have filed an appeal, you can generally obtain a stay on the recovery of the disputed demand by depositing 20% of it.

Once the 20% is paid, recovery of the remaining 80% is normally held in abeyance until your appeal is decided, which protects your bank accounts and salary from attachment in the meantime. However, obtaining a stay does not stop the interest clock: Section 220(2) interest continues to accrue on the full demand throughout the stay. So if you eventually lose the appeal, you pay interest for the entire period, which is why a slow appeal you are likely to lose can be expensive.

Yes, in limited circumstances. Section 220(2A) empowers the Principal Chief Commissioner, Chief Commissioner, Principal Commissioner or Commissioner to reduce or waive the interest if three conditions are met: paying it would cause genuine hardship, the default in payment was due to circumstances beyond your control, and you have cooperated with the department in the assessment and recovery proceedings.

The waiver is discretionary, not a right, and the authorities apply monetary limits to who can grant how much. You can apply for a waiver even after paying the interest. It is worth pursuing in a genuine financial crisis, but you should not assume it will be granted, and you must document the hardship carefully.

Beyond the interest under Section 220(2), continued default can attract a penalty under Section 221, which the assessing officer may levy up to the full amount of the demand. The officer must give you a reasonable opportunity to be heard before imposing it, and no penalty is levied if you can show the default was for good and sufficient reasons.

Separately, if you remain in default, the department can treat you as an assessee in default and begin recovery proceedings, which can include attaching your bank account, garnishing your salary, attaching property, and in serious cases prosecution. This is why it is far better to engage with a demand promptly, whether by paying, appealing or seeking a stay.

You pay a demand through the income tax e-filing portal. Log in, go to Pending Actions and then Response to Outstanding Demand, where you can see every demand against your PAN.

If you agree with a demand, you pay it online through the e-pay tax facility, selecting the correct assessment year and the demand payment option, and then submit your response confirming payment. If you disagree, the same screen lets you file a response explaining why, for instance that the demand is already paid, is incorrect, or is under appeal. Paying through the portal ensures the payment is correctly tagged to the demand, so it is cleared from your outstanding list and does not keep showing as due. A payment made outside this flow can fail to match the demand and leave it open despite the money having left your account.

Yes, interest runs on whatever remains unpaid. If you pay part of the demand within the 30 days and the rest later, interest under Section 220(2) applies only to the unpaid balance, from the day after the window until that balance is cleared.

Making a part payment therefore reduces the base on which interest is charged, which is sensible if you cannot pay the whole amount at once. The calculator computes interest on the demand figure you enter, so for a part-paid demand you would enter the outstanding balance to see the interest on just that portion. Clearing as much as you can early always reduces the interest that accrues. Even a partial payment on the last day of the window, before any interest begins, shrinks the base permanently, so there is never a reason to hold back money you already have while the clock is about to start.

Yes, but only in exceptional cases and with safeguards. The assessing officer can specify a period shorter than 30 days in the notice if they have reason to believe that allowing the full 30 days would be detrimental to revenue, for instance where there is a risk you might dispose of assets to avoid payment.

This shortening requires the prior approval of the Joint Commissioner and reasons recorded in writing. In the ordinary course, though, you get the full 30 days. If your notice specifies a shorter period, the interest clock starts after that shorter window instead, so read the notice carefully to confirm your actual deadline.

You can apply to the assessing officer to pay the demand in instalments, and the application must be made before the 30-day window expires. The officer has discretion to allow instalments on terms they consider appropriate.

However, allowing instalments does not stop the interest: Section 220(2) interest continues to accrue on the outstanding balance for the whole period until it is fully paid, even where the officer has approved the instalment plan or an extension of time. So instalments help your monthly cash flow but do not save you any interest at all. If you can pay in full within 30 days, that is always cheaper than any instalment arrangement.

This is a common and frustrating situation, usually caused by a payment not being correctly matched to the demand. First, check that your payment was made for the correct assessment year and tagged to the demand, not as a separate self-assessment payment.

On the Response to Outstanding Demand screen, you can select the option indicating the demand is already paid and provide the challan details, which lets the department reconcile it. If the mismatch persists, you may need to raise a grievance or contact the assessing officer with proof of payment. Until it is reconciled, the system may keep showing interest accruing, so resolving it promptly protects you from an incorrect interest charge.

It gives a close and correctly computed estimate based on the demand amount and dates you enter, applying the 1% per month rule with the part-month rounding and the correct interest start date. In most straightforward cases it will match the department’s figure.

Small differences can arise if your notice specifies a shorter payment window, if part payments were made on dates the tool does not capture, or if the department applies a particular convention to the payment date. Use this calculator to understand and check your interest, to plan the best day to pay, and to verify a recomputation after appeal, then rely on the figure in your portal and notice as the final position. Treating it as a planning and verification tool rather than a substitute for the official demand is the right frame, and it is exactly where it adds the most value, by making a fiddly month-counting computation instant and transparent.