Unexplained Cash Deposits and Income: Sections 68 to 69D and the 78% Tax Under Section 115BBE (AY 2026-27)

Most income tax notices about cash deposits are not really about the deposit. They are about one question: where did this money come from?

If you cannot answer that question to the Assessing Officer's satisfaction, the Income Tax Act does not tax the amount at your slab rate. It treats it as "unexplained" income under Sections 68 to 69D and taxes it under Section 115BBE at a flat 60%, which becomes an effective 78% after surcharge and cess. A penalty can sit on top of that.

This guide explains how these provisions work for FY 2025-26 (AY 2026-27), what typically triggers them, and what evidence actually holds up when you have to explain a source.

A quick note on law: the Income-tax Act, 2025 replaces the 1961 Act from 1 April 2026 with renumbered provisions. Returns for FY 2025-26 are still governed by the 1961 Act, so the section numbers below are the ones that apply to the return you are filing now.

The Six "Deeming" Sections at a Glance

None of these sections creates a new type of income. They are deeming provisions: when you cannot satisfactorily explain the nature and source of money, an asset or a spend, the law deems it to be your income for that year.

Section 68 applies where you maintain books of account. Courts have long held that a bank passbook is not the account holder's "books", so for a salaried individual without books, cash deposits in a savings account are usually examined under Section 69A instead. The outcome is the same either way: Section 115BBE applies.

Why Section 115BBE Hurts So Much

Income deemed under any of these six sections is taxed under Section 115BBE, whether you declared it yourself in the return or the Assessing Officer added it during assessment.

The rules are deliberately harsh:

• Flat 60% tax on the unexplained amount.
• 25% surcharge on that tax, regardless of your total income level.
• 4% health and education cess on tax plus surcharge.
• No deduction for any expenditure or allowance against this income.
• No set-off of any loss, including business losses or capital losses, against it.
• No basic exemption limit and no Section 87A rebate on this portion.
• It applies under both the old and the new regime, because it is a special rate outside the slab system.

The effective rate works out as 60% × 1.25 × 1.04 = 78%.

Compare that with a salaried taxpayer in the top slab under the new regime, who pays 30% plus cess on the same amount if it were regular income. The difference between explaining a source and not explaining it is more than double the tax.

What Usually Triggers the Question

The department rarely stumbles on unexplained money by accident. Most cases start with information reported by banks, registrars and fund houses through the Statement of Financial Transactions (SFT), which then shows up in your Annual Information Statement.

Crossing a threshold does not mean you owe anything. It means the system compares these amounts against the income in your return, and a large gap generates a notice or an e-verification query. Our guide to SFT reporting and high-value transactions explains each reporting category in detail.

A Worked Example

Ravi is a salaried employee with a gross salary of ₹14 lakh, filing under the new regime. During FY 2025-26 he deposits ₹12 lakh in cash into his savings account. He receives a notice asking him to explain the source.

He can document part of it:

• ₹5 lakh from his own ATM and counter withdrawals in FY 2024-25, set aside for a home renovation that was postponed. His bank statements show the withdrawals.
• ₹2 lakh from his share of agricultural income on family land, supported by mandi sale receipts and land records.

The remaining ₹5 lakh has no documentation. If the Assessing Officer treats it as unexplained money under Section 69A:

Had the same ₹5 lakh been ordinary income at Ravi's 30% marginal rate, the tax would have been about ₹1,56,000. Interest under Sections 234B and 234C for the shortfall in advance tax would also apply on top of the ₹3,90,000.

How to Explain a Source So It Actually Holds Up

The Assessing Officer is not looking for a story. They are looking for a paper trail that establishes three things, often called the triple test: the identity of the source, its capacity to provide the money, and the genuineness of the transaction.

A few practical points make a big difference:

• Declared history matters. An explanation of "past savings" is far more credible if your earlier returns show income that could plausibly generate those savings. This is one reason filing even a nil return in low-income years is valuable.
• Loans need the lender's side too. For credits in books of account, a 2022 amendment to Section 68 requires the lender to explain their own source as well. Even outside Section 68, the Assessing Officer will want to see the lender's bank trail.
• Watch the cash rules while explaining cash. Receiving ₹2 lakh or more in cash from one person in a single day, transaction or event breaches Section 269ST and invites a penalty equal to the amount. A cash sale of a car for ₹3 lakh might explain a deposit and simultaneously create a 100% penalty. Our guide on cash transaction limits covers this.
• Rotating deposits are not all new money. Where the same cash is repeatedly deposited and withdrawn, tribunals have in many cases accepted that only the peak balance, not the sum of every deposit, needs explaining. Prepare a date-wise cash flow statement to show this.

Jewellery at Home: The Search Guideline

Household jewellery is a common worry. CBDT Instruction No. 1916 (1994), reaffirmed in a December 2016 clarification, says that during a search, gold jewellery up to 500 grams per married woman, 250 grams per unmarried woman and 100 grams per male member of the family will not be seized.

This is a guideline on seizure, not a blanket exemption. Jewellery acquired from explained income, household savings or inheritance is not taxable at all, whatever the quantity, as long as you can support it. Keep purchase invoices, family settlement documents or wills where they exist, and declare jewellery in Schedule AL if your income exceeds ₹1 crore.

The Section 271AAC Penalty and How to Avoid It

When unexplained income is part of the income determined in assessment, the Assessing Officer may levy a penalty under Section 271AAC of 10% of the tax payable at 60%, which works out to 6% of the amount itself.

There is a narrow escape. No penalty is levied to the extent that you:

1. Offered the income in a return filed under Section 139, and
2. Paid the 60% tax under Section 115BBE on or before 31 March of the same financial year.

That second condition is strict. For FY 2025-26 the window closed on 31 March 2026, so disclosure in a return filed now avoids an additional under-reporting penalty but not necessarily 271AAC. For the current year, if you know you hold money you cannot document, the time to deal with it is through advance tax before 31 March 2027.

The good news is that the general under-reporting penalty of 50% to 200% under Section 270A does not apply to income already penalised under Section 271AAC.

Reporting Section 115BBE Income in Your Return

If you are declaring such income yourself, you cannot use ITR-1, which has no place for income taxed at special rates like this. ITR-2 has a specific line in Schedule OS for income chargeable under Section 115BBE, with separate entries for each of Sections 68 to 69D. The tax computation then applies the 60% rate plus surcharge automatically.

When 49Tax prepares your ITR-2, it reads your AIS and flags large cash deposits or investments that look out of line with the income you have reported, so you can gather evidence before the department asks.

If You Have Already Received a Notice

• Read which section and which transactions it cites. Notices often list specific SFT entries.
• Check your AIS for errors first. A deposit wrongly attributed to your PAN is fixed through AIS feedback, not an explanation.
• Reply with documents, not assertions. A one-line "these were my savings" response almost always fails.
• Reply within the time allowed and ask for an extension in writing if you need time to collect records from banks or relatives.
• Know the time limit. Reassessment notices can generally be issued within about three years from the end of the assessment year, extended to five years where the escaped income is ₹50 lakh or more.

Our income tax notice response guide walks through the reply process on the e-filing portal.

Takeaway

Before you deposit a large amount of cash or make a big purchase, ask yourself whether you could show the Assessing Officer, on paper, where the money came from. If the answer is yes, keep that paper trail with your tax records for at least six years. If the answer is no, the gap between your slab rate and 78% plus penalty is large enough that documenting and declaring the source properly, and in time, is almost always the cheaper path.