Introduction
During ITR filing season, many taxpayers focus only on one question:
How much tax do I have to pay?
But the Income Tax Department looks at much more than that. Your current year return may be compared with:
- previous year ITR;
- AIS;
- TIS;
- Form 26AS;
- bank deposits;
- TDS entries;
- property transactions;
- capital gains;
- business loss;
- revised return pattern.
If the system detects unusual variation, the return may come under the department’s risk review or scrutiny selection system.
This is commonly referred to as CASS, meaning Computer Aided Scrutiny Selection.
For ITR filing, AIS reconciliation and income tax notice support, visit TaxClear.in.
What Is CASS?
CASS means Computer Aided Scrutiny Selection.
It is a computer-assisted system used for selecting certain income tax returns for scrutiny or detailed verification.
In simple words, CASS helps the department identify cases where the return may require closer examination.
CASS may look at risk indicators such as:
- income mismatch;
- sudden fall in income;
- high-value transactions;
- large bank deposits;
- repeated revised returns;
- mismatch with AIS/Form 26AS;
- unusual loss claims;
- capital gains not reported;
- refund claim mismatch.
The purpose is not that every taxpayer will receive a notice. The purpose is to identify returns where the department may need an explanation.
Why CASS Matters for Taxpayers
Earlier, many taxpayers filed ITR based only on their own working. Now, the department already has large amounts of third-party data.
This includes:
- TDS data;
- bank interest;
- securities transactions;
- mutual fund redemptions;
- property transaction details;
- SFT data;
- high-value deposits;
- GST turnover, where applicable.
If your ITR does not match the information available with the department, a notice may come.
1. Sudden Reduction in Income
One major trigger discussed in the transcript is sudden reduction in income compared to the previous year.
For example:
| Last Year Income | Current Year Income | Possible Department Question |
|---|---|---|
| ₹1 crore | ₹75 lakh | Why did income fall? |
| ₹5 crore | ₹3 crore | Was any income omitted? |
| ₹30 lakh | ₹10 lakh | What caused the sharp decline? |
A fall in income is not illegal. Business income, professional income and capital market income can genuinely reduce.
But the taxpayer should be ready with evidence.
Documents to Keep If Income Has Fallen
| Reason for Lower Income | Documents to Keep |
|---|---|
| Business slowdown | Sales register, GST data, invoices |
| Job loss | Relieving letter, Form 16, salary slips |
| Reduced professional receipts | Client invoices, bank statement |
| Market loss | Broker statement, capital gain report |
| Rental vacancy | Rent agreement, vacancy proof |
| One-time income last year | Previous year computation and supporting documents |
| Loan repayment received | Loan agreement and bank trail |
The key point is simple: if income has genuinely fallen, maintain proof.
2. AIS / Form 26AS Mismatch
Another important scrutiny trigger is under-reporting.
If income appears in AIS, TIS or Form 26AS but is missing from ITR, the return may be flagged.
Examples:
| Data Appearing in AIS/26AS | Mistake in ITR |
|---|---|
| FD interest | Not reported |
| Dividend | Not reported |
| Mutual fund redemption | Capital gain schedule missing |
| TDS on rent | Rental income missing |
| Property sale | Capital gain missing |
| TDS on commission | Business income missing |
Taxpayers should not file ITR without checking AIS and Form 26AS.
Correct Approach
Before filing ITR:
- download AIS;
- download TIS;
- download Form 26AS;
- match bank interest;
- match dividend;
- match capital gains;
- match TDS/TCS;
- check SFT transactions;
- correct wrong AIS entries through feedback;
- file ITR with correct income.
For AIS and ITR reconciliation, visit TaxClear.in.
3. Large Bank Deposit but Low Income
If large amounts are deposited in the bank but income remains low, the department may ask for source explanation.
This can happen in genuine cases also.
For example:
- old FD matured;
- loan repayment received;
- money received from relative;
- property sale proceeds;
- exempt inheritance;
- capital returned from investment;
- business receipts deposited;
- cash savings deposited.
But if ITR shows low income and bank deposits are high, keep documents ready.
Example
| Particulars | Amount |
|---|---|
| Income reported in ITR | ₹4 lakh |
| Bank deposits during year | ₹40 lakh |
| Possible issue | Source of deposits may be questioned |
This does not automatically mean tax evasion. But the taxpayer must be able to explain the source.
4. Repeated Revised Returns
Filing a revised return is legally allowed if a genuine mistake is found.
However, repeated revisions may create doubt.
| Situation | Risk |
|---|---|
| Return filed once, then corrected for genuine error | Usually acceptable |
| Return revised multiple times without clear reason | Scrutiny risk |
| Income reduced repeatedly | Higher risk |
| Refund increased repeatedly | Higher risk |
| Capital gains changed after AIS mismatch | Explanation needed |
Therefore, file the original return carefully. Use revised return only when genuinely required.
5. Large Loss Claimed
A large loss can also attract attention.
This may include:
- business loss;
- F&O loss;
- intraday trading loss;
- house property loss;
- capital loss;
- loss on sale of shares;
- loss from property transaction.
A loss is not wrong. But it must be supported with proper documents.
Documents for Loss Claims
| Loss Type | Documents Required |
|---|---|
| F&O loss | Broker P&L, turnover report, tax audit check |
| Intraday loss | Broker statement, speculative income working |
| Capital loss | Capital gains report, purchase/sale details |
| House property loss | Loan certificate, interest certificate |
| Business loss | Books, invoices, bank statements |
| Property loss | Sale deed, purchase deed, cost proof |
If you want to carry forward losses, file the ITR within the due date wherever required by law.
6. Compare Current ITR With Previous Year ITR
Before filing, compare the current year return with last year’s return.
Check:
| Item | Compare With Previous Year |
|---|---|
| Salary | Increase/decrease |
| Business turnover | Increase/decrease |
| Gross profit | Major variation |
| Net profit | Major variation |
| Bank interest | Missing bank accounts |
| Dividend | Missing investment income |
| Capital gains | Large gains/losses |
| House property income | Rent change |
| Deductions | Unusual claim |
| Refund | Large refund compared to past |
The department’s system can compare your return with prior-year data. You should do the same before filing.
7. Section 54 / Section 82 Relief: Property Buyer’s Important Point
The transcript discusses an important property-related point: where a taxpayer invests capital gains in a new residential property through a builder, the final conveyance deed may be delayed.
In such cases, tax benefit may still be possible if the taxpayer has:
- made payment within the prescribed time;
- acquired enforceable rights;
- acquired rights in an identifiable property;
- entered into a valid agreement;
- complied with Section 54 conditions.
Under the old Income-tax Act, this is discussed under Section 54. Under the Income-tax Act, 2025, the corresponding residential-house capital gain provision is Section 82.
Section 54 Basic Conditions
| Point | Requirement |
|---|---|
| Original asset | Long-term residential house property |
| Eligible taxpayer | Individual/HUF |
| New asset | Residential house in India |
| Purchase time | 1 year before or 2 years after transfer |
| Construction time | Within 3 years after transfer |
| Benefit | Capital gain exemption subject to conditions |
Therefore, if you booked a flat and paid within the timeline, do not assume exemption is lost only because final conveyance deed is delayed.
However, this is a fact-specific issue and should be supported with documents.
Documents for Section 54 Claim
| Document | Purpose |
|---|---|
| Sale deed of old house | Transfer date and sale value |
| Purchase agreement/allotment letter | New property rights |
| Builder payment receipts | Proof of investment |
| Bank statement | Payment trail |
| Flat/unit details | Identifiable property |
| Possession letter, if available | Supports ownership/right |
| Construction status | If under construction |
| Capital gains computation | Exemption calculation |
For property sale tax planning, visit TaxClear.in.
8. NRI With No Indian Income: Is ITR Required?
The transcript also discusses a common NRI question.
If a person is living abroad and has no income taxable in India, no TDS refund claim, no Indian capital gains, no Indian rent and no mandatory filing trigger, filing ITR in India may not be compulsory.
However, ITR may be required or useful if the NRI has:
- NRO interest;
- Indian FD interest;
- rent from Indian property;
- capital gains from Indian shares/mutual funds/property;
- TDS refund claim;
- business/professional income in India;
- sale of Indian property;
- AIS entries needing explanation.
NRI ITR Position
| Situation | ITR Position |
|---|---|
| NRI with no Indian income | Generally not mandatory |
| NRI with NRO interest above limit | Check filing requirement |
| NRI with TDS refund | File ITR |
| NRI with Indian capital gains | File ITR |
| NRI with rental income | File ITR if taxable/required |
| NRI with Indian business income | File ITR-3 |
| NRI with only foreign salary earned abroad | Generally not taxable in India if non-resident |
For NRI ITR filing, visit TaxClear.in.
9. International Mutual Funds / S&P 500 FoF: How to Report?
The transcript includes a query on investment in an S&P 500 fund-of-fund.
The key principle is:
Do not blindly treat an international fund-of-fund like Indian equity mutual fund.
Section 112A benefit and the ₹1.25 lakh threshold are meant for specified long-term capital gains from listed equity shares, equity-oriented funds or business trusts, subject to conditions.
Many international funds or fund-of-funds may not qualify as equity-oriented funds for Section 112A purposes.
Therefore, the correct tax treatment depends on:
- type of fund;
- date of acquisition;
- holding period;
- fund classification;
- whether Section 112A applies;
- capital gain statement from AMC/broker;
- current law for specified mutual funds.
Practical Advice
| Situation | What to Do |
|---|---|
| S&P 500 FoF redeemed | Check AMC capital gain statement |
| Gain appears in AIS | Report in ITR |
| Unsure whether 112A applies | Do not claim ₹1.25 lakh threshold blindly |
| No business income | ITR-2 may be applicable |
| Gain is taxable as capital gain | Report under proper capital gain schedule |
Do not report capital gains casually under “Other Sources” unless the income character is actually other-source income. Mutual fund redemption is generally a capital transaction.
10. House Property Loss: Current Year vs Brought Forward
Another query in the transcript relates to house property loss.
There are two concepts:
- current year house property loss;
- brought forward house property loss.
Current year loss from house property can be set off against other income subject to the applicable limit.
But brought forward house property loss can be set off only against income from house property in subsequent years.
Example
| Particulars | Treatment |
|---|---|
| Current year house property loss | Can be set off against other heads subject to limit |
| Brought forward house property loss | Can be set off only against house property income |
| Remaining loss | Carried forward subject to law |
| Set off against salary/business income in later years | Not allowed for brought forward house property loss |
Therefore, do not mix current-year ₹2 lakh set-off rule with brought-forward loss rules.
11. Return Filed but Not Processed
Sometimes ITR is filed and e-verified, but processing is delayed.
In such cases:
- check whether ITR is e-verified;
- check ITR status on portal;
- check for any pending action;
- raise grievance on the portal;
- use e-Nivaran / grievance mechanism;
- contact CPC helpline if required;
- keep acknowledgement and e-verification proof.
Delay in processing does not automatically mean scrutiny.
12. TDS Deducted but Not Showing in Form 26AS
If TDS was deducted but not showing in Form 26AS/AIS, the taxpayer cannot properly claim credit unless the deductor files or corrects the TDS return.
This commonly happens with:
- employer;
- bank;
- tenant;
- post office;
- buyer;
- payer of commission;
- deductor filing wrong PAN.
What to Do
| Step | Action |
|---|---|
| 1 | Ask deductor for TDS certificate |
| 2 | Check PAN mentioned in TDS records |
| 3 | Ask deductor to file/correct TDS return |
| 4 | Check Form 26AS after correction |
| 5 | Keep proof of deduction |
| 6 | Raise grievance if needed |
If TDS is not reported correctly by deductor, refund may be delayed or denied.
CASS Notice: How to Prepare
If you receive a scrutiny notice, do not panic.
Action Plan
| Step | Action |
|---|---|
| 1 | Read notice carefully |
| 2 | Identify issue: income mismatch, deposit, loss, capital gain, etc. |
| 3 | Download AIS/TIS/Form 26AS |
| 4 | Compare with ITR |
| 5 | Collect documents |
| 6 | Prepare point-wise reply |
| 7 | Submit within deadline |
| 8 | Avoid unsupported statements |
| 9 | Consult a tax professional for complex cases |
For income tax notice reply, visit TaxClear.in.
Common Mistakes That Increase Scrutiny Risk
| Mistake | Risk |
|---|---|
| Filing ITR without AIS check | Mismatch |
| Sudden income fall without documentation | Scrutiny query |
| High bank deposits without source proof | Notice |
| Repeated revised returns | Risk flag |
| Large loss without evidence | Scrutiny |
| Ignoring capital gains | AIS mismatch |
| Claiming Section 54 without documents | Disallowance |
| Incorrect NRI filing | Wrong return |
| Not following up TDS mismatch | Refund issue |
| Relying blindly on Google/AI for tax position | Wrong filing |
TaxClear View
CASS should not scare genuine taxpayers.
If your income is correctly disclosed, tax is properly paid and documents are maintained, you can respond to any query.
The real problem arises when taxpayers:
- hide income;
- ignore AIS;
- make unsupported claims;
- report capital gains incorrectly;
- file revised returns repeatedly;
- fail to explain high bank deposits.
The safest approach is to prepare the return as if the department will compare it with all available data.
Key Takeaways
- CASS means Computer Aided Scrutiny Selection.
- Sudden fall in income can trigger questions.
- Large bank deposits with low income need source proof.
- Repeated revised returns may increase scrutiny risk.
- AIS/Form 26AS mismatch is a major notice trigger.
- Large losses should be supported with documents.
- Section 54 benefit may still be possible if enforceable rights in an identifiable property are acquired within time.
- NRIs with no Indian income may not need to file ITR, but Indian income/refund/capital gains can create filing requirement.
- International mutual funds should not be treated blindly like Indian equity funds.
- Brought-forward house property loss can be set off only against house property income.
- If TDS is not reflected, follow up with deductor.
- Proper documentation is the best defence.
Conclusion
Income tax scrutiny is increasingly data-driven. The department can compare your ITR with AIS, TIS, Form 26AS, past returns, bank deposits, capital gains and other reported transactions.
If your income has fallen, deposits are high, losses are large or the return has been revised multiple times, keep documents ready.
A taxpayer does not need to fear CASS if the return is accurate and complete.
For ITR filing, AIS reconciliation, scrutiny notice reply, property capital gains planning and NRI tax support, visit TaxClear.in.
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