By CA Surekha Ahuja
Section 155(20) and Form 71 — Practical guidance for cash basis, advances, provisions, services and capital gains
The year of TDS deduction does not, by itself, determine the year of taxability or the year in which the credit should ultimately be given.
TDS mismatches are often viewed merely as an AIS/26AS reconciliation issue. In practice, they involve a more fundamental question:
When is the underlying income taxable, and how does the TDS deducted on that income get credited?
This becomes particularly important where:
- the taxpayer follows the cash system of accounting;
- TDS is deducted on advances before the related income is recognised;
- security deposits are received but are not necessarily income;
- service income and TDS cross Financial Years;
- the payer deducts TDS on year-end provisions / credit entries; or
- capital-gain transactions involve consideration and TDS across two Financial Years.
The four events must be separated
| Event | Question |
|---|---|
| Taxability | When is the underlying income chargeable under the applicable provision? |
| Receipt / payment | When was the amount actually received or paid? |
| TDS deduction | When did the applicable TDS provision require deduction? |
| Reporting | In which year does the TDS appear in AIS/26AS? |
These events may coincide—or may fall in different years.
The correct professional sequence
Nature of transaction
↓
Applicable charging provision
↓
Year of taxability
↓
Accounting method, where relevant
↓
TDS trigger
↓
Year of TDS deduction/reporting
↓
Correct credit mechanism
Follow the income first. Trace the TDS second. Choose the remedy last.
The critical distinction: which event came first?
There are two fundamentally different timing situations.
| Situation | Professional approach |
|---|---|
| Income taxable and returned in Year 1 → TDS deducted in Year 2 | Examine Section 155(20) / Form 71, subject to statutory conditions |
| TDS deducted in Year 1 → related income taxable in Year 2 | Determine the Year 2 taxability and applicable TDS-credit mechanism; do not mechanically invoke Form 71 |
This distinction is essential because Section 155(20) is a specific statutory remedy, not a general solution for every year-to-year TDS mismatch.
Where Section 155(20) fits
The relevant framework under the Income-tax Act, 1961 is:
Section 199
TDS credit framework
↓
Rule 37BA
Credit with reference to the income to which the deduction relates
↓
Section 155(20)
Specific rectification mechanism for the prescribed subsequent-year TDS situation
↓
Rule 134 + Form 71
Procedural route
The provision therefore operates where income has already been included in the relevant earlier return and TDS on that specified income is subsequently deducted and paid, subject to the statutory requirements.
Cash basis: TDS does not decide taxability
For a taxpayer following the cash system, particular care is required.
TDS deduction by the payer does not, by itself, establish that the recipient's income is taxable in that year.
The practitioner must first determine the year of taxability under the applicable charging provisions and the valid method of accounting.
Therefore:
TDS deduction is not a substitute for determining the year in which income is chargeable.
At the same time, a cash-basis taxpayer cannot assume that every TDS entry can simply be ignored until cash is recognised; the underlying transaction and applicable statutory provision must be examined.
Advances, security deposits and service income
Advance
A payer may deduct TDS on an advance when the applicable TDS provision triggers deduction, even though the recipient may recognise the related service income later.
Security deposit
A genuine refundable security deposit is not automatically income merely because money has been received. Characterisation of the receipt and TDS consequences are separate questions.
Service industry
A service transaction may involve:
Provision / credit → TDS → payment → service completion / recognition
or another sequence depending upon the facts and applicable provisions.
Therefore, practitioners should reconcile the service, credit/payment event, taxability and TDS rather than simply matching TDS year with revenue year.
Capital gains: identify the transfer year first
Capital-gain transactions require separate attention.
If property is transferred in one Financial Year but consideration—and corresponding TDS—extends into the next, the first question is:
In which year did the transfer take place and in which year is the capital gain chargeable?
Only thereafter should the payment schedule and TDS entries be mapped.
Example
Property transferred in February 2026:
- ₹60 lakh paid before 31 March 2026
- ₹40 lakh paid in April 2026
The subsequent payment/TDS year does not, by itself, determine the year of capital-gains taxability.
Professional rule
For capital gains, reconcile TDS with the underlying transfer, not merely with the payment year.
The Form 71 eligibility test
Before filing Form 71, establish the complete chain:
| Test | What must be established |
|---|---|
| Income | What income does the TDS relate to? |
| Year | In which AY was that income taxable? |
| Disclosure | Was it included in the return under Section 139? |
| Subsequent TDS | Was TDS subsequently deducted and paid on that income? |
| Credit | Has the same TDS not already been claimed/allowed elsewhere? |
| Limitation | Is the application within the prescribed period? |
If the chain is not established, Form 71 should not be filed mechanically.
A practical mismatch matrix
| Situation | Correct response |
|---|---|
| Income Year 1 → TDS Year 2 | Examine Section 155(20) / Form 71 |
| TDS Year 1 → Income Year 2 | Determine later-year taxability and applicable credit mechanism |
| Cash-basis taxpayer | Establish taxability under cash method + applicable law |
| Advance with TDS | Separate TDS trigger from income recognition |
| Refundable security deposit | Characterise receipt before treating it as income |
| Year-end provision | Examine payer's TDS trigger separately from recipient's income recognition |
| Service income crossing FYs | Reconcile service, taxability, credit/payment and TDS |
| Capital gain with instalment consideration | Establish year of transfer first |
| Wrong PAN / TDS particulars | Deductor-side correction |
| Income omitted from earlier return | Form 71 does not cure the omission |
| Duplicate TDS credit | Correct the duplicate claim |
Documentation: build the transaction trail
The working paper should connect:
Transaction → Income → Taxability → TDS → Year → Credit
Retain, as relevant:
ITR + computation
Agreement / invoice / ledger
Bank statement / payment trail
Provision / journal entry
Transfer documents for capital gains
Form 16/16A + AIS/26AS
Deductor/TAN details
Earlier 143(1) / assessment order
Subsequent-year reconciliation
The objective is that a reviewer should be able to establish why the TDS was deducted, what income it relates to, when that income was taxable and why credit is being sought in that year.
Limitation and procedure
For an application under Section 155(20), the assessee's application is subject to the prescribed two-year period from the end of the Financial Year in which TDS was deducted.
This should be separately tracked from the limitation applicable to rectification under Section 154.
Practical workflow
Identify taxability
→ Verify earlier return
→ Trace subsequent TDS
→ Check non-duplication
→ Check limitation
→ File Form 71 electronically
→ Track rectification
→ Verify credit / refund / adjustment
Filing the form is not the end of the exercise. The consequential tax position should be verified.
What Form 71 can—and cannot—do
| Form 71 can address | Form 71 cannot cure |
|---|---|
| Specified subsequent-year TDS timing mismatch | Every AIS/26AS mismatch |
| Consequential rectification where conditions are satisfied | Omitted income |
| Legitimate TDS credit relating to income already returned | Wrong PAN/TAN |
| The prescribed Section 155(20) situation | Duplicate credit |
| — | A change in the year of taxability |
2026 transition
For matters governed by the Income-tax Act, 1961:
Section 155(20) → Rule 134 → Form 71
Under the Income-tax Act, 2025, the corresponding framework is:
Section 288(1), Table Sl. No. 11 → Rule 178 → Form 102
| Income-tax Act, 1961 | Income-tax Act, 2025 |
|---|---|
| Section 155(20) | Section 288(1), Table Sl. No. 11 |
| Rule 134 | Rule 178 |
| Form 71 | Form 102 |
| Assessment Year | Tax Year |
Therefore:
Identify the governing Act → determine the year of taxability → identify the TDS trigger → select the prescribed form.
The professional takeaway
A TDS mismatch is not merely a portal problem.
It is a question of connecting:
Income + year of taxability + TDS trigger + year of deduction + statutory credit mechanism
This becomes particularly important where cash accounting, advances, security deposits, year-end provisions, service contracts or capital-gain transactions cause the income year and TDS year to diverge.
The wrong approach is:
“TDS appears in this year, so claim it in this year.”
The correct approach is:
“What income does the TDS represent? When was that income taxable? Was it already returned? When was TDS deducted? And which statutory mechanism governs the credit?”
The rule worth remembering
Determine taxability first. Determine the TDS trigger second. Determine the credit mechanism third. Select the form last.
For the specified situation under the Income-tax Act, 1961, Section 155(20) read with Rule 134 and Form 71 provides the statutory route where income has already been included in an earlier return and the corresponding TDS is deducted and paid in a subsequent Financial Year.
But where TDS precedes the year in which the related income becomes taxable, the analysis is different and should not automatically be forced into Section 155(20).
