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?

  1. Use the correct current or saved form period.
  2. Compute final estimated tax on total income, including other banks and special-rate items.
  3. For non-senior declarants apply the separate statutory covered-income ceiling.
  4. 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 roleLegacy 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 blockCompleted example
Part A: declarant / PAN / residence / age / TYSuresh Kumar Sharma / synthetic ZZZPS0000Z / resident / born 15 August 1959, age 67 / 2026-27
Current declaration income / natureRs 3,00,000 bank FD interest
Earlier declarations count / income / annual aggregate1 / Rs 50,000 / Rs 3,50,000
Estimated total incomeRs 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 computationOrdinary 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 conditionNot applicable to this resident individual aged 60 or more; nil estimated tax remains essential
Prior-return fieldsTwo assumed earlier FY returns in full model; dummy acknowledgements do not prove actual filing
Part B: payer / TAN / UINIllustration Bank Limited / synthetic PNEI00000X / model UIN only, not an issued acknowledgement
Receipt date / signature21 October 2026 / all signature and certification fields explicitly NOT SIGNED

Check the figures and meaning

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

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.