You were expecting a refund. Instead, the SMS says your return was “processed with demand,” and the PDF attached to the email shows a number you don’t recognise. Before you pay anything or panic, know this: most income tax demand notice 143 1 cases come from a mismatch that can be explained, and many can be fixed online without visiting any tax office.
At Pro Business Cop, we treat a demand like evidence that needs checking, not a verdict. This guide walks you through exactly that: confirm the notice is real, find the line that created the demand, and then choose to pay, fix or dispute it.
First 60 Seconds: Is Your Income Tax Demand Notice 143 1 Genuine?
Fake versions of the income tax demand notice 143 1 are common, and they copy the look of real ones. Run these checks before you open any link.
- Where it came from: a real intimation u/s 143(1) is sent by the Centralized Processing Centre (CPC) to the email registered on your e-filing account, with an SMS to your registered mobile. The same document is also available on the portal under View Filed Returns.
- The DIN: every genuine notice carries a Document Identification Number. Enter it in Authenticate Notice/Order under Quick Links on the Income Tax e-filing portal. If it doesn’t match, the notice is not from the department.
- The password: the real PDF opens with your PAN in lowercase followed by your date of birth as DDMMYYYY, with no spaces. A sender who asks you to “call for the password” is a red flag.
- The payment route: the department never asks you to pay through a link in the email, a UPI ID or a QR code. Real tax payments go through e-Pay Tax after you log in.
Scammers borrow official names for the same reason fake product pre-orders do, a pattern we cover in our breakdown of scam red flags. And never upload the intimation PDF to a chatbot to “explain it”; it carries your PAN and income details, which belong on our list of what never to paste into AI tools.
Proposed Adjustment or Final Demand: Which Stage Are You At?
People often mix up two different messages from the CPC, and the right response depends on which one you have.
| What you received | What it means | Your window | Your move |
|---|---|---|---|
| Proposed adjustment u/s 143(1)(a) | CPC found a mismatch and is asking before it changes anything | 30 days to respond | Agree or disagree online, with reasons |
| Final intimation u/s 143(1) with a demand | Processing is done and tax is payable | Generally 30 days from service of the notice to pay | Pay, respond to the demand, or rectify |
| Outstanding demand on the portal | An unpaid demand is recorded against your PAN, sometimes from an older year | Act as soon as you see it | Check the year and respond to it |
The key point: the final intimation is treated as a notice of demand under section 156, which is why people call it a demand notice under section 143(1). That is why ignoring it has a cost, which we explain further down.
If you’re still at the proposed adjustment stage, this is your cheapest moment to act. A clear “disagree” with proof can stop the demand from being raised at all.
How to Read the Figures in Your Income Tax Demand Notice 143 1
Open the intimation and find the computation table. It has three columns: “As provided by taxpayer,” “As computed under section 143(1)” and the difference. Your demand sits in that last column.
Scan these rows first:
- Income from other sources: a positive difference usually means interest from savings, FDs or a dividend showed up in your AIS but not in your return.
- Chapter VI-A deductions: a negative difference means a deduction such as 80C or 80D was reduced or disallowed.
- TDS/TCS credit: a negative difference means some tax deducted for you isn’t visible in Form 26AS.
- Taxes paid: advance or self-assessment tax missing here points to a challan problem.
- Interest and fee: lines for sections 234A, 234B, 234C and 234F show interest for late filing or short advance tax, and the late filing fee.
Once you find the row with the gap in your income tax demand notice 143 1, you know your trigger. Everything else in the notice is usually just arithmetic flowing from it.
Why You Got an Income Tax Demand Notice 143 1: 8 Common Triggers
- TDS missing from Form 26AS. Your deductor cut the tax but didn’t file its TDS return, or filed it with a wrong PAN. Fix: ask the deductor to file or correct the TDS return, then request reprocessing once 26AS updates. Salaried employees can catch this early when they check payslip deductions every month.
- Challan not entered in Schedule IT. You paid self-assessment or advance tax but didn’t list the challan in your return, so CPC gave you no credit for it.
- Unreported interest in AIS. Savings and FD interest is reported to the department by your bank, even if you forgot it.
- Deductions lost to the regime choice or late filing. Deductions you claimed may not be allowed under the new tax regime, and some benefits fall away when the return is filed late.
- Arithmetic slips. A wrong total in a schedule is corrected automatically, sometimes against you.
- Short advance tax. If your tax for the year crossed ₹10,000 and you didn’t pay enough advance tax, interest under section 234B and 234C gets added.
- Freelancer receipts higher than declared income. Fees from clients appear in 26AS and AIS under section 194J. If your gross receipts are lower than those entries, the system notices.
- Turnover mismatch for small businesses. If you file under presumptive taxation (44AD) and your declared turnover is lower than what AIS or GST data shows, expect questions.
Worked Example: How One Missing Challan Created a ₹22,400 Demand
Here is an illustrative case that mirrors a real scenario the department itself flags in its own taxpayer email about missing challan details.
Rohan is a freelance designer in Pune. His total tax for the year comes to ₹62,400. Clients deducted ₹40,000 as TDS, and he paid the remaining ₹22,400 as self-assessment tax before filing. But he skipped Schedule IT, the part of the return where you enter the challan.
| Item | As per Rohan’s return | As computed by CPC |
|---|---|---|
| Tax liability | ₹62,400 | ₹62,400 |
| TDS credit | ₹40,000 | ₹40,000 |
| Self-assessment tax credited | ₹0 (challan not entered) | ₹0 |
| Balance payable | ₹22,400 | ₹22,400 |
Rohan had actually paid the ₹22,400, but because it never entered his return, the intimation showed a demand of ₹22,400, plus any interest the system worked out.
The fix: he logged in, went to Services, then Rectification, and chose Tax Credit Mismatch Correction. He added the challan’s BSR code, date of deposit, challan serial number and amount. After reprocessing, the demand dropped to zero. If Rohan had paid the demand in a panic, he would have paid the same tax twice and then waited for a refund.
Pay, Fix or Fight: Your Income Tax Demand Notice 143 1 Decision Table
This is the part most guides skip. Match your situation to one row.
| Your situation | Best move | Where on the portal |
|---|---|---|
| The demand is correct | Pay it | e-Pay Tax |
| The demand is wrong or partly wrong (tax already paid, credit missing, or the demand belongs to someone else) | Respond to the outstanding demand with reasons and proof | Pending Actions, then Response to Outstanding Demand |
| CPC missed something already in your return, or your challan or TDS credit is now available | Rectification under section 154 | Services, then Rectification |
| You made the mistake in your return, such as wrong income or a missed deduction | Revised return under section 139(5), if your window is still open | File Income Tax Return |
| The disagreement is legal, not clerical | Appeal before the Commissioner (Appeals) in Form 35, generally within 30 days of the intimation | e-File, then Income Tax Forms |
| Income was missed and the revision window has closed | Updated return (ITR-U) with the extra tax | File Income Tax Return |
A simple rule of thumb: if the proof already exists (a challan, a TDS entry, a figure in your return), rectify or respond. If you need to change what you declared, revise. If you disagree with how the law was applied, appeal, ideally after talking to a Chartered Accountant.
On timelines: a rectification request can be filed within four years from the end of the financial year in which the intimation was passed. Revised return windows have recently been widened for newer returns, with a fee if you revise late in the window, so check the cut-off shown for your year on the portal.
How to Respond to an Outstanding Demand on the Portal
If you believe the outstanding tax demand is wrong, don’t stay silent. A recorded response protects you, especially against refund adjustments.
- Log in to the e-filing portal with your PAN and password.
- Go to Pending Actions, then Response to Outstanding Demand.
- Find the demand by assessment year and click Submit Response.
- Choose whether you agree with the whole demand, agree with part of it, or disagree.
- For a disagreement, pick a reason, such as “demand already paid” or “TDS not considered,” and enter or upload the supporting details (challan number, TDS certificate or appeal reference).
- Submit and save the acknowledgement.
Your response goes to the CPC or your jurisdictional Assessing Officer for review. Keep checking the same page; if the demand is corrected, it will drop off or show a reduced amount.
How to Pay an Income Tax Demand Notice 143 1 Without Making It Worse
If the demand is correct, pay it from the portal using e-Pay Tax. The one detail people get wrong is the type of payment.
- Choose Challan 280 (income tax), select the correct assessment year, and pick minor head 400: Tax on Regular Assessment.
- Do not use minor head 300 (Self-Assessment Tax). That is for tax paid before or while filing a return, and a demand paid under it often stays “open” on the portal.
- You can pay by net banking, debit card, UPI through the bank gateway, or over the counter at authorised banks.
- Save the challan receipt with its CIN (Challan Identification Number).
If the demand still shows after a few days, use Response to Outstanding Demand and state that it has been paid, with the challan details. This links your payment to the demand.
What Happens If You Ignore an Income Tax Demand Notice 143 1
Ignoring a genuine income tax demand notice 143 1 doesn’t make it go away. It quietly gets more expensive.
- Interest under section 220(2): if you don’t pay within the time given in the notice, interest of 1% per month or part of a month is added to the unpaid amount.
- Refund adjustment under section 245: any future refund can be set off against the old demand. You get a communication first and can object online, which is why a recorded response matters.
- Assessee in default: an unpaid demand can mark you as a defaulter, which opens the door to penalties and recovery action, such as attaching a bank account.
Example: a ₹30,000 demand left unpaid for six months after the due date attracts roughly ₹1,800 in interest (1% × 6 months × ₹30,000), and any refund you claim in that time may be taken against it.
Old Demands Suddenly Showing on the Portal
Sometimes a demand from years ago appears in Response to Outstanding Demand, often from a return you barely remember. Before reacting, check three things: the assessment year, whether you had already paid or rectified it, and whether it relates to TDS you deposited as a deductor.
Some very old, small outstanding demands have been wiped out. Under a one-time CBDT remission, outstanding demands of up to ₹25,000 per entry for assessment years up to 2010-11 and up to ₹10,000 per entry for assessment years 2011-12 to 2015-16 were extinguished, with a ceiling of ₹1 lakh per taxpayer. TDS and TCS demands raised against deductors were not covered. If an eligible demand still shows, raise it through the portal’s grievance option.
Section 143(1) Under the New Income-tax Act, 2025
India’s new Income-tax Act, 2025 has replaced the 1961 Act, and the processing of returns now sits in section 270. The logic hasn’t changed: automated checks, the same kinds of adjustments, and a nine-month limit from the end of the financial year in which the return is filed.
| What it does | 1961 Act | Income-tax Act, 2025 |
|---|---|---|
| Processing of returns and intimation | Section 143(1) | Section 270 |
| Rectification of mistakes | Section 154 | Section 287 |
Returns for income earned before the new Act took effect are generally still processed under the old law, which is why many intimations still say 143(1). If you see both numbers in different places, nothing is wrong. They are the same process under two laws.
How Freelancers and Small Business Owners Can Avoid the Next Demand
Most demands we’ve walked through had one root cause: the return didn’t match what the department already knew. Close that gap before you file.
- Download AIS and 26AS first. Match every TDS entry, interest line and client receipt against your books before you start the return.
- Enter every challan in Schedule IT. Advance tax and self-assessment tax only count if the return lists them.
- Pay advance tax on time. Spreading payments across the year avoids section 234B and 234C interest, which is the most common add-on in freelancer demands.
- Match turnover with bank and GST data. Presumptive filers should check that declared turnover isn’t lower than what flows through their accounts.
- Keep expense proof organised. Records like toll and FASTag statements help if a business expense is ever questioned. Our small business tool stack lists accounting software categories, our business tool reviews compare options that make this routine, and the break-even calculator helps you plan for tax as a regular cost.
Frequently Asked Questions
Is an income tax demand notice 143 1 the same as a scrutiny notice?
No. A 143(1) intimation comes from automated processing by the CPC, with no officer reviewing your case. A scrutiny notice comes under section 143(2) and asks you to produce documents. A demand under 143(1) still needs action, but it is far less serious.
How many days do I get to pay an income tax demand notice 143 1?
Generally 30 days from when the notice is served, unless the notice states a different period. After that, interest at 1% per month applies under section 220(2).
Can I pay the demand in instalments?
You can request your jurisdictional Assessing Officer to allow instalments or extra time, giving reasons. It is at the officer’s discretion, and interest may still apply on the unpaid portion.
My employer deducted TDS, but it isn’t showing. Do I still have to pay?
Not if the tax was actually deducted. Ask your employer to file or correct the TDS return so it reflects in Form 26AS. Meanwhile, respond to the outstanding demand saying TDS was not considered, then file a rectification once the credit appears.
Can the department take my refund for an old demand?
Yes, under section 245 a refund can be adjusted against an outstanding demand. You are informed first and can respond online. If the old demand is wrong, say so with proof before the adjustment happens.
I already paid, but the demand still shows. What now?
Check the minor head on your challan. If you paid under 300 instead of 400, the payment may not be linked. Submit a response on the portal saying the demand is paid and give the challan details, including the CIN.
143(1) demand notice ka jawab kaise de?
Portal par login karein, Pending Actions mein Response to Outstanding Demand kholein, aur batayein ki aap demand se agree karte hain, partly agree karte hain ya disagree. Disagree karne par reason aur proof (challan ya TDS details) zaroor dein. Agar galti processing ki hai to rectification request bhi file kar sakte hain.
Read the Number, Then Make Your Move
An income tax demand notice 143 1 is the department showing its math. Check that the notice is real, find the row that created the gap, and pick the right fix from the decision table. Most cases end with a rectification or a correct payment, not a long dispute.
- Want plain-English help with money and compliance? Browse our Finance guides for more checklists like this one.
- Can’t decode a line in your intimation? Send it to Ask the Cop with your PAN and personal details removed, and our team will point you to the right next step.
- Want to talk to us directly? Contact the Pro Business Cop team.
Disclaimer
This guide is general information, not tax or legal advice. Pro Business Cop is not affiliated with the Income Tax Department. Section numbers, time limits and portal menus can change, and how they apply depends on your assessment year and facts. The example of Rohan is illustrative. For a large demand, a legal disagreement or an appeal, consult a Chartered Accountant before acting. Read our full disclaimer.
