Income Tax Notice · FY 2025-26

Section 148 Income Tax Notice —
Reopening & Reassessment

When the Assessing Officer can reopen a past year, the new post-2024 time limits, the mandatory Section 148A pre-notice inquiry, how to reply in time and the penalties for ignoring it.

Finance Act 2024 limits CA-reviewed Reply strategy inside

Got a 148 notice? Talk to us See time limits

3y 3mStandard limit

5y 3mEscaped income ≥ ₹50L

₹50LExtended-window trigger

7 daysMinimum reply window

Quick Answer

Section 148 is the notice an Assessing Officer issues to reopen a past assessment when income has escaped tax. Under the Finance (No.2) Act 2024 (from 1 September 2024), a notice is time-barred after 3 years 3 months from the end of the assessment year — extended to 5 years 3 months only if escaped income is ₹50 lakh or more (the old 10-year window is gone). Every 148 notice must first be preceded by the Section 148A inquiry with a 7–30 day show-cause reply window.

Standard limit 3y 3m

Escaped ≥ ₹50L 5y 3m

148A inquiry Mandatory

Reply window 7–30 days

Section 149

Reassessment Time Limits — Old vs New

The limitation for reopening lives in Section 149. It was cut sharply by the Finance Act 2021 and again tightened by the Finance (No.2) Act 2024. Notices issued on or after 1 September 2024 follow the new limits below.

Scenario	Old limit	New limit (from 1 Sep 2024)	Condition
Escaped income below ₹50 lakh	Up to 3 years (post-2021) / 4 years (pre-2021)	3 years 3 months	AO must hold information suggesting escapement
Escaped income ₹50 lakh or more	Up to 10 years	5 years 3 months	Income represented as asset / expenditure / book entry
Old 6-year window (>₹1 lakh)	6 years from end of AY	Abolished	No longer a separate category
Beyond the outer limit	—	No notice	A time-barred 148 notice is void
148A pre-notice inquiry	Not required (pre-2021)	Mandatory	Order under 148A must precede the 148 notice

Under the Income-tax Act 2025 (effective AY 2026-27) the reassessment provisions are renumbered but the substance above continues. Search intent still centres on the familiar "Section 148".

Check the date before anything else

Limitation is strictly enforced by courts. First verify the assessment year on the notice and count the months — a Section 148 notice issued after the applicable 3y3m / 5y3m window (or without a valid 148A order) is liable to be quashed. Do not concede the reopening before this limitation check.

Section 148A

The Mandatory Pre-Notice Inquiry

Section 148A (inserted by Finance Act 2021, retained after the 2024 amendments) bars the AO from jumping straight to a 148 notice. A show-cause step must come first, giving you a chance to explain before the year is reopened.

InformationAO holds specific info that income escaped

→

Show-causeSCN with the material is served on you

→

Your reply7–30 days to respond with evidence

→

148A orderReasoned order — fit case or not

→

148 noticeIssued only if it is a fit case

The show-cause reply is your best shot

A strong, evidence-backed reply at the 148A show-cause stage can stop the reopening entirely — the AO must drop it if you satisfactorily explain the flagged transaction. Once the formal 148 notice issues, defending it becomes a full reassessment.

Received a 148A show-cause or a 148 notice? Get a reply drafted before the deadline.

Talk to a Tax Expert →

Action plan

How to Respond to a Section 148 Notice

Never ignore it. Work through these steps as soon as the notice lands — the clock is short and additions can be heavy.

Verify the assessment year, DIN and whether a 148A order preceded the notice
Check the limitation date (3y3m / 5y3m from end of AY)
Reconcile Form 26AS and the AIS against your filed ITR
Gather documentary proof for every flagged transaction
File the return called for and reply within the stated window
Ask for the recorded reasons / information relied upon
Engage a CA or tax advocate before conceding anything

The AIS and 26AS mismatch is the single most common trigger — see AIS vs 26AS to reconcile the two before you reply.

Why me?

Common Reasons a 148 Notice Is Issued

Mismatch between AIS/26AS and the income declared in your ITR
High-value SFT transactions — large cash deposits, property, shares, mutual funds
Non-filing of a return despite income above the basic exemption
Information from GST, ED, SFIO, or a foreign tax authority under DTAA
Unexplained credits / investments flagged in earlier scrutiny

Consequences

What Happens If You Ignore It

If you ignore the notice	Consequence
Best-judgment assessment	AO assesses income u/s 144 on available data, without your input
Tax + interest	Demand with interest u/s 234A/234B/234C plus surcharge and cess
Under-reporting penalty	50% of tax on under-reported income under Section 270A
Mis-reporting penalty	200% of tax where mis-reporting is established
Prosecution	Possible u/s 276C for a wilful attempt to evade tax

Responding on time — even to say the income was already disclosed — almost always beats silence.

A response is required even if you think it is a mistake

If the flagged income was already offered to tax, say so with proof — this closes the reopening at the 148A stage. Staying silent lets the AO make a best-judgment addition that is far harder and costlier to undo on appeal.

Government sourcesAct & sections: incometax.gov.in · Sections 147, 148, 148A & 149, Income-tax Act 1961 · Time limits amended by Finance (No.2) Act 2024 — effective 1 September 2024 · 148A pre-notice inquiry inserted by Finance Act 2021 · Renumbered under the Income-tax Act 2025 (effective AY 2026-27)

Section 148 — Frequently Asked Questions

Basics

What is a notice under Section 148 of the Income Tax Act?

Section 148 is the notice an Assessing Officer (AO) issues to reopen a completed or non-existent assessment when he has information suggesting that income chargeable to tax has escaped assessment for a past year. Once issued, you are required to file (or re-file) the return of income for that assessment year, after which the AO reassesses your income under Section 147.

What triggers a Section 148 reassessment notice?

The most common trigger is a mismatch between the data in your AIS/Form 26AS and the income you declared in your ITR. Others include large cash deposits or high-value SFT transactions (property, shares, mutual funds), non-filing despite taxable income, and information shared by GST, ED, SFIO or a foreign tax authority. Under the current law the AO must hold specific information — vague suspicion is not enough.

What is the difference between Section 147 and Section 148?

Section 147 is the substantive power to assess or reassess income that has escaped assessment. Section 148 is the procedural notice through which that power is exercised — it requires you to furnish a return so the reassessment under Section 147 can proceed. In practice people refer to the whole reopening as a "148 notice".

Time limits

What is the time limit for issuing a Section 148 notice now?

For notices issued on or after 1 September 2024 (Finance (No.2) Act 2024), a Section 148 notice is time-barred after 3 years and 3 months from the end of the relevant assessment year. This extends to 5 years and 3 months only where the escaped income is ₹50 lakh or more and is represented as an asset, expenditure or book entry. The earlier 6-year and 10-year windows no longer apply to new notices.

Can a Section 148 notice be issued after 10 years?

No. The old provision that allowed reopening up to 10 years (16 years for foreign assets) has been discontinued for notices issued from 1 September 2024. The outer limit is now 5 years 3 months from the end of the assessment year, and only when escaped income is ₹50 lakh or more. A notice beyond the applicable window is void.

What is the ₹50 lakh threshold in Section 149?

The extended time limit (5 years 3 months) applies only if the income that has escaped assessment amounts to, or is likely to amount to, ₹50 lakh or more, and is represented in the form of an asset, expenditure in respect of a transaction or event, or an entry in the books of account. Below ₹50 lakh, the AO cannot reopen beyond the standard 3 years 3 months.

Do the Section 148 limits change under the Income-tax Act 2025?

The Income-tax Act 2025, effective from AY 2026-27, renumbers the reassessment provisions but carries forward the same 3-year-3-month / 5-year-3-month structure, the ₹50 lakh trigger and the pre-notice inquiry. The familiar "Section 148" remains the search and reference point; the substance for taxpayers is unchanged.

Section 148A

What is the Section 148A procedure?

Section 148A requires the AO to conduct a pre-notice inquiry before issuing a 148 notice. The AO serves a show-cause notice setting out the information that suggests income has escaped assessment; you get 7 to 30 days to reply with evidence; and the AO must then pass a reasoned order deciding whether it is a fit case. Only if the order says yes can the formal 148 notice be issued.

Can a Section 148 notice be issued without the 148A inquiry?

Generally no. For ordinary reopening, the 148A show-cause and the reasoned 148A order must precede the 148 notice; skipping it makes the notice liable to be quashed. Always check whether a 148A order was passed and served on you before the 148 notice.

How many days do I get to reply to a 148A show-cause notice?

A minimum of 7 days and up to 30 days, as specified by the AO. If you need more time to gather documents, request an extension in writing within the window rather than letting it lapse. Filing a robust, evidence-backed reply at this stage can stop the reopening before a 148 notice is even issued.

Responding

How should I respond to a Section 148 notice?

First verify the assessment year, the DIN and whether a 148A order preceded it, then check the limitation date. Reconcile your Form 26AS and AIS against the filed ITR, gather proof for each flagged transaction, file the return called for and submit a point-wise reply within the stated time. Ask for the recorded reasons, and engage a CA or tax advocate before conceding anything.

What if the income in the notice was already disclosed in my ITR?

Reply promptly and attach documentary proof that the flagged amount was already offered to tax (the relevant ITR schedule, computation, bank statements, etc.). If the AO is satisfied at the 148A stage, the reopening is dropped. Do not ignore the notice merely because you believe nothing is wrong — an unanswered notice invites a best-judgment addition.

Can I request the reasons recorded for reopening?

Yes. After filing the return in response to the 148 notice you can ask the AO for the information and reasons relied upon. This lets you file specific objections. In the current framework much of this is already disclosed in the 148A show-cause notice, so review that document carefully.

Consequences

What are the consequences of ignoring a Section 148 notice?

The AO can complete a best-judgment assessment under Section 144 using available data, raise a tax demand with interest under Sections 234A/234B/234C plus surcharge and cess, levy a penalty of 50% of tax on under-reported income (200% if mis-reporting is established) under Section 270A, and in serious cases initiate prosecution under Section 276C. Responding on time is far cheaper than defending an ex-parte addition on appeal.

Is there a penalty for the income that gets added in reassessment?

Yes. Additions made in reassessment attract penalty under Section 270A — 50% of the tax on under-reported income, rising to 200% where mis-reporting (concealment or false claims) is established, in addition to interest. A well-supported reply that explains the transaction can avoid both the addition and the penalty.

Can I appeal against a reassessment order under Section 148?

Yes. After the reassessment order is passed you can file an appeal before the Commissioner of Income Tax (Appeals) / the faceless appeal authority, and further before the ITAT. You can also challenge a time-barred or 148A-defective notice by writ before the High Court. Acting within the appeal limitation period is essential.

Done-for-you

Related TaxClue Services

Income Tax Notice HandlingEnd-to-end reply and representation for 148/143(2)/139(9) notices.Explore →ITR FilingFile the return called for in the 148 notice, correctly and on time.Explore →Tax AuditGet books audited where reassessment turnover thresholds apply.Explore →TDS Return FilingFix TDS/26AS mismatches that often trigger reassessment.Explore →

Related income-tax guides

Income Tax Notice Guide Form 26AS Explained Annual Information Statement (AIS)AIS vs 26AS Section 270A Penalty Advance Tax Payment

TaxClue notice desk

Got a Section 148 Notice? Reply Before the Clock Runs Out

Our CA-led team checks the limitation and 148A validity, reconciles your AIS/26AS, drafts the show-cause reply and represents you through reassessment — 100% online, across India.

Get Notice Help → File your ITR

Got a 148 notice?Talk to TaxClue →

WhatsApp Expert Get Notice Help