If you are an employer or planning to handle payroll, understanding Form No. 138 (TDS on Salary) is very important. This form is basically how you report the tax you deduct from your employees’ salaries to the government.
Many beginners get confused because of technical terms. But once you understand the flow step by step, it becomes quite simple.
Let’s break it down in a clear and practical way so you can confidently understand how it works.
What is Form No. 138?
Form No. 138 is a quarterly statement filed by employers to report TDS (Tax Deducted at Source) on salaries paid to employees.
In simple words, whenever you deduct tax from an employee’s salary, you need to inform the Income Tax Department about:
- How much salary you paid
- How much tax you deducted
- When you deposited that tax
This reporting is done through Form No. 138.
This form replaces the earlier Form 24Q under the new Income-tax framework. So if you’ve heard about 24Q before, just think of Form 138 as its updated version.
Who is required to file Form No. 138?
This form is not for employees. It is the responsibility of the deductor, which means the person or entity deducting tax. In simple terms, the following need to file it:
- Employers (company, firm, government, individual, etc.)
- Specified banks (for senior citizens’ pension and interest income)
If you are deducting TDS from salary or pension, filing this form is not optional—it is mandatory.
Note: The key idea here is simple, If you deduct tax, you must report it.
When should Form No. 138 be filed? (Due Dates Explained)
Form No. 138 is filed every quarter, not just once a year.
Table showing Form 138 Quarterly Due Dates
| Quarter | Period Covered | Due Date for Filing |
|---|---|---|
| Q1 | April – June | 31st July of the Financial Year |
| Q2 | July – September | 31st October of the Financial Year |
| Q3 | October – December | 31st January of the Financial Year |
| Q4 | January – March | 31st May of the Financial Year immediately following the Tax Year |
These dates are very important because delay can lead to penalties. In practical life, many small businesses miss deadlines simply due to lack of awareness. Staying updated here can save unnecessary penalties.
What details are included in Form No. 138?
The form collects complete information about the deductor, tax deducted, and employee-wise details.
It mainly includes:
- Deductor details (Name, PAN, TAN, Address)
- Responsible person details
- Tax payment details (challan, BSR code, date, etc.)
Then it moves into annexures, which are the most important part.
What are Annexures in Form No. 138 and why are they important?
Annexures are where the actual data is reported. This is the core of the form. There are three annexures:
- Annexure I: Employee-wise TDS details (filed every quarter)
- Annexure II: Salary summary, deductions, and tax calculation (only in Q4)
- Annexure III: Pension & interest details for senior citizens (only in Q4)
Now here’s the important understanding:
Annexure I is like a monthly transaction record, while Annexure II is like a final yearly summary.
Because of Annexure II, your employee’s ITR gets pre-filled with salary details. So accuracy here is extremely important.
What documents/details are needed to file Form No. 138?
Before filing, you should have some basic data ready. These include:
- Challan details (tax deposited proof)
- PAN of employees (deductees)
Without correct PAN or challan details, errors will occur during validation. In real life, most filing errors happen due to incorrect PAN or mismatch in challan data.
What is the step-by-step process to file Form No. 138?
Let’s understand the complete process in a simple flow. First, you deduct tax from your salary or pension. Then you deposit it with the government. After that, you prepare and file the statement.
The process includes:
- Deduct tax (TDS) from salary/pension
- Deposit the deducted tax amount (TDS) within due date
- Prepare statement using RPU (TIN-NSDL utility)
- Validate using FVU
- Generate .fvu file
- Upload on Income Tax portal or TIN-FC
Once submitted, the statement is processed by CPC-TDS.
The important thing to understand here is that filing is not just one step—it’s a sequence. Missing any step can cause rejection.
What happens after Form No. 138 is processed?
After submission, two parties are affected: the deductor and the employee.
For the deductor:
- The statement can be accepted with or without errors
- If errors exist, correction statement must be filed
For employees:
- TDS details appears in AIS (Form 168)
- Form 130 (TDS certificate) is generated by the employer
- TDS certificate issued by employer to employee
- Employee uses this certificate while filing ITR
This is where it becomes important for employees. If the employer makes mistakes, the employee may not get proper tax credit. So accuracy directly impacts employees’ tax filing experience.
Can Form No. 138 be revised or corrected later?
Yes, but not directly.
Once submitted, the form cannot be edited. However, you can file a correction statement after processing.
There is also a time limit: Correction can be filed within 2 years from end of tax year
This means you do get a chance to fix errors, but only within a defined time.
Is it mandatory to file Form No. 138 online?
Yes, it is mandatory.
All TDS statements, including Form No. 138, must be filed electronically.
This shift makes the system more transparent and reduces manual errors.
Why is timely and accurate filing important?
This is something many beginners ignore—but it has real consequences.
Filing correctly and on time helps in:
- Passing correct tax credit to employees
- Avoiding employee complaints
- Preventing penalties and legal issues
If you delay or file incorrectly, you may face:
- Late filing fees
- Penalties under the Income-tax Act
So this is not just compliance—it directly affects both your business and your employees.
Conclusion
Form No. 138 may look technical at first, but its purpose is very simple: reporting the tax deducted from salaries to the government.
Once you understand the flow—deduct → deposit → report—it becomes much easier to handle. The most important thing is accuracy and timely filing, because it directly affects both compliance and employee trust.
If you treat this as a routine process rather than a one-time task, managing TDS will become smooth and stress-free over time.
Mapping: Income-tax Act, 1961 vs Income-tax Act, 2025 (Form 24Q vs Form 138)
| Particulars | Income-tax Act, 1961 / Rules, 1962 | Income-tax Act, 2025 / Rules, 2026 |
|---|---|---|
| Form Name | Form 24Q | Form 138 |
| Relevant Section (TDS Return Filing) | Section 200(3) | Section 397(3)(b) |
| Relevant Rule | Rule 31A | Rule 219 |
