Income tax · Practical guide
Form 15G & 15H: How to Avoid TDS on Interest Income (Complete Guide)
Original author: Finin2min · Sources checked 21 October 2026
Nil tax can arise through lawful deductions or rebate; it is not synonymous with income below the basic exemption amount. Current Form 121 also retains the additional specified-income test outside the resident senior exception.
Does zero estimated tax always mean income is below the basic exemption?
- Use the correct current or saved form period.
- Compute final estimated tax on total income, including other banks and special-rate items.
- For non-senior declarants apply the separate statutory covered-income ceiling.
- Supply truthful particulars to the payer and keep its UIN/reporting evidence; filing an ITR may still be required.
Choose the period before the form
FY 2025-26 / AY 2026-27 remains under the saved Income-tax Act, 1961 framework. TY 2026-27 begins on 1 April 2026 under the Income-tax Act, 2025 and Rules, 2026. A later filing or correction date does not, by itself, change the underlying form or year.
| Current form and role | Legacy concordance and controlling source |
|---|---|
| Form 121: Declaration under section 393(6) for receipt of specified income without tax deduction. | 15G, 15H; Rule 211; Physical PDF pp 708-711; printed Gazette pp 2240-2243 |
Form 121 — worked field example
Fictional data, not for filing. The existing full fictional Form 121 model shows a resident senior citizen with ordinary pension and interest income and nil estimated tax after the applicable rebate.
| Prescribed field or block | Completed example |
|---|---|
| Part A: declarant / PAN / residence / age / TY | Suresh Kumar Sharma / synthetic ZZZPS0000Z / resident / born 15 August 1959, age 67 / 2026-27 |
| Current declaration income / nature | Rs 3,00,000 bank FD interest |
| Earlier declarations count / income / annual aggregate | 1 / Rs 50,000 / Rs 3,50,000 |
| Estimated total income | Rs 8,75,000: pension Rs 6 lakh less new-regime standard deduction Rs 75,000 plus FD interest Rs 3,50,000 |
| Nil estimated-tax computation | Ordinary slab tax Rs 27,500; eligible section 156 rebate Rs 27,500; remaining tax and cess nil, assuming no special-rate income |
| Senior specified-income ceiling condition | Not applicable to this resident individual aged 60 or more; nil estimated tax remains essential |
| Prior-return fields | Two assumed earlier FY returns in full model; dummy acknowledgements do not prove actual filing |
| Part B: payer / TAN / UIN | Illustration Bank Limited / synthetic PNEI00000X / model UIN only, not an issued acknowledgement |
| Receipt date / signature | 21 October 2026 / all signature and certification fields explicitly NOT SIGNED |
Check the figures and meaning
- 3,00,000 + 50,000 = 3,50,000 total income covered by declarations.
- 6,00,000 - 75,000 + 3,50,000 = 8,75,000 estimated total income.
- 20,000 + 10%×75,000 = 27,500; rebate reduces model tax to nil.
This senior example is not a universal nil-TDS entitlement for everyone below Rs 12 lakh. Other eligible declarants have the additional specified-income/basic-exemption condition. Use legacy 15G/15H for the applicable earlier-law period, and current Form 121 for TY 2026-27.
Official Form 121 source extractFilled fictional field illustration
The model completes the named fields. The official source contains every applicable schedule and verification; no signature, actual acknowledgement, certification or approval has been created.
Related guidance
Primary sources
- Physical PDF pp 708-711; printed Gazette pp 2240-2243; Appendix III, Form 121
- Finance Act 2026, current-rate Schedule and relevant amendments: section 84 (393), section 85 (394), section 59 (206); read exact payment and tax-year branch
- Corrigendum to G.S.R.198(E), 16 April 2026; read affected printed page references
- Section 393(6)-(7), physical PDF pp490-491: eligibility and quarterly declaration delivery; depository clause effective 1 April 2027
Questions readers ask
Does zero estimated tax always mean income is below the basic exemption?
Nil tax can arise through lawful deductions or rebate; it is not synonymous with income below the basic exemption amount. Current Form 121 also retains the additional specified-income test outside the resident senior exception.
Can I submit the sample or treat it as an issued certificate?
No. It is a labelled fictional illustration of the named fields. Use the actual official procedure and the complete prescribed form for a real filing, professional certificate or authority action.