Form 121 vs Form 15G vs Form 15H – Complete Comparison Guide 2026
Form 121 vs Form 15G vs Form 15H – Complete Comparison Guide 2026
Introduction
Many taxpayers are confused about what will happen to Form 15G and Form 15H after 2026 and how the new Form 121 will work.
If you receive FD interest, dividend income, rent income, or any other income where TDS is deducted, then this guide is very important for you.
In this article, we will understand:
What is Form 121
Difference between Form 121, Form 15G, and Form 15H
Eligibility conditions
Benefits of the new form
Important rules and practical examples
This article is written in simple and easy-to-understand English so you can directly use the information for tax planning.
What Was Form 15G?
Form 15G was a self-declaration form used by resident individuals below 60 years of age.
By submitting this form to the bank or payer, taxpayers could request that no TDS be deducted from their income.
Conditions for Form 15G
The person must be a Resident Indian
Age should be below 60 years
Total taxable income should be below the basic exemption limit
Final tax liability should be NIL
This form was commonly used for:
FD interest
RD interest
Bond interest
Certain other interest incomes
What Was Form 15H?
Form 15H was specially designed for Senior Citizens.
If a person was 60 years or older and had no tax liability, they could submit Form 15H to avoid TDS deduction.
Conditions for Form 15H
Resident Individual
Age 60 years or above
Tax liability should be NIL
Senior citizens commonly used this form for:
Fixed Deposit interest
Pension-related interest income
Savings and investment income
What Is Form 121?
From 1 April 2026, the government is introducing a new structure and tax reporting system.
Under this updated framework, Form 121 is expected to become an important declaration form for taxpayers who want to avoid unnecessary TDS deductions.
The new system also introduces the concept of a “Tax Year” instead of separate “Previous Year” and “Assessment Year.”
Example:
For income earned from 1 April 2026 onwards, the Tax Year will be referred to as 2026-27.
Major Difference Between Form 121 and Old Forms
| Feature | Form 15G | Form 15H | Form 121 |
|---|---|---|---|
| Resident Individual | Yes | Yes | Yes |
| Senior Citizen Eligibility | No | Yes | Yes |
| Tax Year Concept | No | No | Yes |
| Multiple Income Coverage | Limited | Limited | Wider Coverage |
| Dividend Income Coverage | Limited | Limited | Yes |
| Rent Income Coverage | Mostly No | Mostly No | Yes |
| Modernized Filing Structure | No | No | Yes |
Key Benefits of Form 121
1. Wider Income Coverage
One of the biggest advantages of Form 121 is that it may cover multiple income categories where TDS is deducted.
These include:
FD Interest
Dividend Income
Bond Interest
Insurance Commission
Rent Income
Mutual Fund Income
Taxable Insurance Amounts
2. Simplified Tax System
The new Tax Year concept simplifies tax reporting and reduces confusion between Previous Year and Assessment Year.
3. Better Compliance Tracking
The government and financial institutions can track declarations more efficiently under a unified system.
4. Easier for Taxpayers
Taxpayers can estimate income and submit declarations more systematically.
Which Income Types Are Covered Under Form 121?
Fixed Deposit Interest
If your bank deducts TDS on FD interest, you may use Form 121 to prevent deduction if your total taxable income is below the exemption limit.
Dividend Income
Companies deduct TDS on dividend payments above specified limits. Form 121 can help eligible taxpayers avoid such deductions.
Rent Income
TDS may apply on rent payments for land, buildings, plant, or machinery. Eligible taxpayers may submit Form 121 to avoid TDS.
Insurance Commission
Insurance agents receiving renewal or commission income may also use the form.
Bond and Debenture Interest
Interest received from securities, bonds, or debentures may also fall under eligible categories.
Important Eligibility Rules
To use Form 121 successfully, taxpayers should ensure:
They are Resident Individuals
Their estimated total income is within the exemption limit
Their final tax liability is NIL
PAN details are correctly provided
Common Mistakes to Avoid
1. Incorrect Income Estimation
Never underestimate your annual income intentionally. Wrong declarations may create future tax problems.
2. Not Submitting Form to Every Bank
If you have FD accounts in multiple banks, you must submit Form 121 separately to each bank.
Example:
SBI → Separate Form
HDFC → Separate Form
PNB → Separate Form
3. Missing PAN Details
If PAN is not submitted, banks may deduct TDS at a higher rate.
4. Late Submission
If you submit the form after TDS has already been deducted, you may need to claim a refund through your Income Tax Return.
Practical Example
Suppose a taxpayer has the following income:
| Source | Amount |
|---|---|
| SBI FD Interest | ₹65,000 |
| HDFC FD Interest | ₹55,000 |
| Dividend Income | ₹20,000 |
If the person’s total taxable income remains below the exemption limit, they can submit Form 121 to:
SBI
HDFC Bank
Dividend-paying company
As a result, TDS may not be deducted.
Can Form 121 Be Submitted Online?
Most banks already provide online facilities for TDS declaration forms.
In the future, Form 121 is also expected to be available through:
Internet Banking
Mobile Banking Apps
Financial Institution Portals
This will make the process faster and easier.
Why Is Form 121 Important?
Form 121 is important because it improves cash flow for taxpayers.
Instead of waiting for a tax refund after filing the Income Tax Return, eligible individuals can prevent unnecessary TDS deduction from the beginning itself.
This is especially useful for:
Senior Citizens
Small investors
Pensioners
Low-income taxpayers
Final Conclusion
Form 121 is expected to become an important tax declaration form from 2026 onwards. It modernizes the old Form 15G and Form 15H system and offers broader income coverage with a simplified structure.
Taxpayers whose total taxable income is below the exemption limit should understand this form properly and submit it on time to avoid unnecessary TDS deductions.
Correct income estimation, proper PAN details, and timely submission are the keys to using Form 121 effectively.
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