Imagine a state electricity department hiring a contractor to repair machinery in a thermal plant. The total contract amount is ₹60 lakh. When the department pays the contractor, it does not transfer the full amount immediately. Instead, it deducts a small portion of tax and deposits it directly with the government.
This deduction is called GST TDS (Tax Deducted at Source under GST).
Let us now understand the entire system step by step so that even a beginner can clearly see how GST TDS actually works in India.
What Does TDS Mean Under GST?
Under GST, TDS means a specified buyer deducts a small part of tax while making payment to a supplier and sends that amount to the government.
Later, the supplier receives the same amount as credit in their GST electronic cash ledger.
In simple terms:
- The buyer keeps aside a small tax portion
- The government receives tax immediately
- The supplier can use that amount later while paying GST
Why is it important?
This system ensures that the government receives a part of the tax at the time of payment itself, instead of waiting until the supplier files GST returns.
For suppliers working with government bodies, this explains why their payment is slightly lower than the invoice value.
How does it work? (Step by step)
- A supplier completes work or supplies goods to a government organisation.
- The supplier issues an invoice including GST.
- While releasing payment, the government organisation deducts 2% of the taxable value.
- This deducted amount is deposited with the GST department.
- The supplier receives the remaining payment.
- The deducted tax appears in the supplier’s GST cash ledger, which can be used to pay GST.
Example
- Scenario: Contractor installs electrical wiring for a municipal corporation.
- Invoice Details:
- Value of service: ₹6,50,000
- GST @18%: ₹1,17,000
- Total invoice: ₹7,67,000
- TDS Calculation Basis: TDS is calculated only on the taxable value (excluding GST).
- TDS Calculation Formula: TDS = Taxable Value × 2%
- Taxable Value = ₹6,50,000
- TDS = ₹6,50,000 × 2% = ₹13,000
- Payment to Supplier:
- Total invoice: ₹7,67,000
- Less TDS: ₹13,000
- Net payment: ₹7,54,000
- Note: The deducted ₹13,000 will appear in the supplier’s GST account.
Common mistakes & quick tips
- Do not calculate TDS on the total invoice value including GST.
- Always calculate it on the taxable value only.
- GST TDS usually applies when government organisations make payments.
Now that the basic concept is clear, let us see who actually deducts GST TDS.
Which Organisations Must Deduct GST TDS?
GST law requires certain government-related entities to deduct TDS when making payments to suppliers.
If your business supplies goods or services to these organisations, TDS deductions will appear in your payments, so you must understand who is responsible for deducting it.
Organisations required to deduct GST TDS
These generally include:
- Central Government departments
- State Government offices
- Municipal corporations and local authorities
- Government agencies
- Public Sector Undertakings (PSUs)
- Government-controlled boards or authorities where government ownership is more than 51%
- Societies formed by government bodies
- Private businesses normally do not deduct GST TDS.
Example
A supplier sells computer equipment to a government hospital run by the state health department.
Since the buyer is a government organisation, GST TDS rules will apply if the contract crosses the threshold limit.
Common mistakes & tips
- Many people confuse Income Tax TDS and GST TDS. They are separate systems.
- GST TDS mostly applies to government payments, not private transactions.
Now let us move to the next important question.
When Is GST TDS Applicable?
GST TDS is applicable only when the value of a contract exceeds ₹2,50,000 (excluding GST).
This threshold is calculated only on the taxable value.
Many beginners mistakenly look at the invoice total including GST, which leads to incorrect conclusions about whether TDS should apply.
How to check applicability
Follow these steps:
- Identify the value of goods or services before GST.
- Ignore the GST portion in the invoice.
- Compare the value with ₹2,50,000.
- If the amount is higher than this limit, TDS must be deducted.
Example
| Particular | Amount |
|---|---|
| Supply value | ₹2,80,000 |
| GST | ₹50,400 |
| Total invoice | ₹3,30,400 |
Since ₹2,80,000 exceeds ₹2,50,000, GST TDS will apply.
Quick tip
The ₹2.5 lakh limit applies to the contract value, not the invoice including tax.
Now let us understand the actual deduction rate.
What Is the GST TDS Rate?
The total GST TDS deduction is 2% of the taxable value.
However, the tax components depend on whether the supply is within the same state or between different states.
Same state supply
When both parties are in the same state:
- 1% CGST
- 1% SGST
- Total deduction = 2%
Different state supply
If the transaction is between different states: 2% IGST
Example
A supplier in Karnataka provides services to a Karnataka government department.
| Particular | Amount |
|---|---|
| Taxable value | ₹4,00,000 |
| CGST TDS (1%) | ₹4,000 |
| SGST TDS (1%) | ₹4,000 |
| Total TDS | ₹8,000 |
Formula: GST TDS = Taxable Value × 2%
Example: ₹4,00,000 × 2% = ₹8,000
Common mistakes
- Calculating TDS on GST portion
- Ignoring whether the supply is interstate or intrastate
Now let us see situations where TDS is not required.
When Is GST TDS Not Applicable?
There are several cases where GST TDS does not apply.
Situations where TDS is not required
- Contract value ₹2,50,000 or less
- Goods or services that are fully exempt from GST
- Payment made to a supplier without GST registration
- Transactions covered under reverse charge mechanism
- Certain situations where supplier location and recipient registration are in different states but supply type causes adjustment issues
Example
A government office signs two contracts with a supplier:
| Contract | Value |
|---|---|
| Contract A | ₹2,30,000 |
| Contract B | ₹2,40,000 |
Since each contract is below ₹2.5 lakh, TDS is not required.
Common mistakes
- Combining separate contracts incorrectly
- Applying TDS to GST-exempt goods
Now let us discuss the registration requirement.
Do TDS Deductors Need GST Registration?
Yes.
Any organisation that deducts GST TDS must obtain GST registration as a TDS deductor.
Interestingly, such registration can be taken using TAN instead of PAN, which is convenient for government departments.
Important point: If an organisation already has GST registration as a supplier, it may still need a separate registration for TDS deduction.
Common mistakes
- Assuming regular GST registration is sufficient
- Forgetting separate registration for TDS deduction
Now let us see how the deducted tax is deposited.
When Must GST TDS Be Paid to the Government?
The deducted tax must be deposited within 10 days after the end of the month in which deduction was made.
- Example: If GST TDS was deducted in June, it must be deposited before 10 July. The deductor must file Form GSTR-7 while depositing the tax.
- TDS Certificate: After filing the return, the GST portal generates Form GSTR-7A, which acts as the TDS certificate for the supplier.
Common mistakes
- Missing the monthly filing deadline
- Forgetting to verify the TDS certificate
Now let us see how the supplier benefits from this deduction.
How Does the Supplier Use GST TDS Credit?
Once the deductor files GSTR-7, the deducted amount appears in the supplier’s Electronic Cash Ledger on the GST portal.
How the supplier can use it
The supplier can use the amount to:
- Pay GST liability
- Adjust tax while filing GST returns
- Claim a refund if the balance remains unused
Example: If ₹8,000 was deducted as GST TDS, the supplier will see ₹8,000 credited in their GST ledger, which can be used to pay tax.
What Happens If GST TDS Is Deposited Late?
- Interest: Interest may apply at 18% per year on delayed payment.
- Late fee: Late filing may attract ₹50 per day (₹25 CGST + ₹25 SGST). Maximum limit: ₹2,000
- Penalty situations: Penalties may arise if a deductor:
- Does not deduct TDS
- Deducts incorrect amount
- Deducts tax but fails to deposit it
What Should You Do Next to Apply This Knowledge?
If you are supplying goods or services to government organisations, remember these key points:
- GST TDS applies mainly to government bodies and PSUs
- It is required when contract value exceeds ₹2,50,000
- The deduction rate is 2%
- TDS is calculated only on taxable value
- The deducted amount appears in your GST electronic cash ledger
Understanding these rules will help you avoid confusion when payments from government clients include tax deductions.
