Tax deducted and collected at source Became Form 121
Form 15G
Declaration under section 197A(1) and section 197A(1A) to be made by an individual or a person (not being a company or firm) claiming certain incomes without deduction of tax
What this form is
Form 15G belongs to the regime of the Income-tax Act, 1961. The same ground is now covered by Form 121 of the Income-tax Rules, 2026. It is a declaration. The assessee asserts a fact on his own responsibility, and the consequence of the assertion being wrong falls on him.
Which provision requires it
Left, the provision as the department’s description names it. Right, where the same ground is covered now — taken from the department’s own section and rule concordances, not worked out by us.
Rules of the 2026 Rules that work the same section. rule 208 (Furnishing of declaration and evidence of claims by specified senior), rule 210 (Condition for no deduction of tax at source from income in respect of), rule 211 (Declaration by person claiming receipt of certain incomes without). This is our own matching — we have paired the section the form names with the rules whose headings name that same section. The department has not said that any of these rules prescribes this form.
What it became under the 2026 Rules
The description changed with the number, and the change is worth reading: the 2026 wording points at the Income-tax Act, 2025, and a great deal of what used to sit in a section of the 1961 Act now sits in a Schedule.
| Under the 2026 Rules | What the department calls it |
|---|
| Form 121 | Declaration under section 393(6) for receipt of certain incomes without deduction of tax |
Where you meet it
You meet it on the deduction side of a payment — at the quarter end when a statement falls due, or when the person deducted from asks for the certificate that lets him claim the credit. A mismatch between the statement and the credit claimed is where most of the trouble starts.
On the same provision
Decisions in this library that turn on the same provision of the 1961 Act that this form names. They are about the provision, not about the form; a case is listed here because it argues the section, and none of them is authority on how the form itself is to be filled in.
Near it
Other forms we have put in the same group — tax deducted and collected at source.
Form 10E, Form 12B, Form 12BA, Form 12BAA, Form 12BB, Form 12BBA, Form 13, Form 15C, Form 15D, Form 15E, Form 15H, Form 16
Work it out
Free calculators on VittSphere ONE for the very provision this page is about. They open in the same window.
- Crypto tax calculator — the flat charge under section 115BBH, with no set-off of losses and no expenditure.
- TDS calculator — the rate, the threshold and the deduction on a given payment.
Get the form
Published by the Income Tax Department. The link goes to their file, not a copy of it — a form is revised without notice and a stale copy is worse than none. Both are here because a notice, an order or a judgment may name either number.
What here is the department’s and what is ours. The form number, the sentence describing it, and the pairing of the old form with the form it became are all taken from the Income Tax Department’s own published forms concordance, and are reproduced as the department wrote them — including its abbreviations and its occasional typing errors. Everything else on this page is ours: the plain-English account of what the form is, the reading of which provision requires it, the grouping the form sits in, the note on where you meet it, and the selection of cases. The department has not said that this form serves that section; we have read that off the description and off its own section concordance, and we can be wrong. Before you rely on any of it, open the form.