Section 103 of the Income-tax Act, 2025 — Unexplained Investments (Deemed Income)

In plain language

What Section 103 actually says

Section 103 of the Income-tax Act, 2025 deals with unexplained investments. It is the re-numbered successor to the well-known Section 69 of the Income-tax Act, 1961. In plain words, if you have made an investment during a tax year and either (a) it is not recorded in your books of account, or (b) the Assessing Officer (AO) finds that the actual investment exceeds the amount recorded in your books, and you cannot satisfactorily explain the nature and source of the money, then that investment (or the excess) is deemed to be your income for that year.

The two triggering conditions

• No explanation offered — you stay silent about where the money for the investment came from; or
• Unsatisfactory explanation — you offer an explanation, but in the opinion of the Assessing Officer it is not satisfactory about the nature and source of the funds.

If either applies, the value of the investment (or the excess over what is booked) is added to your total income as deemed income.

Who it applies to

• Every assessee — individuals, HUFs, firms, LLPs, companies, AOPs — no category is exempt.
• It bites hardest where property, gold, shares, mutual funds, land, jewellery or crypto/VDAs are bought with money whose source you cannot document.
• It applies whether or not you maintain books; the phrase "not recorded in the books" covers both unrecorded and under-recorded investments.

Burden of proof is on YOU

This is the key practical point. The onus is on the taxpayer to prove the nature and source of the investment — not on the department to prove it is undisclosed. Decades of case law under old Section 69 (on "satisfactory explanation", identity, capacity and genuineness) continue to apply, because the re-numbering does not disturb settled jurisprudence.

How it is taxed — the sting is Section 195

Once income is deemed under Section 103, it is not taxed at your normal slab rate. It is charged under Section 195 of the 2025 Act (the successor to Section 115BBE of the 1961 Act) at a special flat rate. The Finance Act, 2026 cut this base rate from 60% to 30% — a major relief. Over the 30% base a surcharge of 25% and health & education cess of 4% apply, giving an effective rate of roughly 39% (against about 78% under the old 60% regime).

No deductions, no set-off — the harsh rule

• No expenditure or allowance can be claimed against deemed income under Section 103.
• No set-off of any loss is permitted against it under any provision of the Act (Section 195(2)).
• You cannot reduce it with Chapter VI-A deductions (like 80C) or the basic exemption limit — the full amount is taxed.

How it interacts with related sections

Section 103 is one of a "family" of anti-evasion deeming sections: 102 (unexplained cash credits), 104 (unexplained money/asset such as bullion and jewellery), 105 (unexplained expenditure) and 106 (hundi/negotiable-instrument borrowings). All of them feed into the single charging Section 195. Penalty exposure that earlier sat in a standalone provision has been subsumed into the general penalty framework (Section 439(11)) under the Finance Act, 2026.

Practical implications

• Keep a clear money trail — bank statements, gift deeds, loan confirmations, sale proceeds — for every large investment.
• Investments funded by cash, informal loans or family gifts are the usual targets; document them at the time, not later.
• A mismatch flagged by AIS/SFT (annual information statement) on property or securities purchases can trigger an inquiry under Section 103.