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ITC Set-Off Calculator

Input your output liability and available ITC to calculate exactly how your credits will be utilized and find your net GST payable in cash.

Output Tax Liability

₹
₹
₹

Available ITC

₹
₹
₹

Net Tax Payable (Cash)

IGST Liability: ₹0
CGST Liability: ₹0
SGST Liability: ₹0
Total Cash Required: ₹0

ITC Balance Carry Forward

IGST Balance: ₹0
CGST Balance: ₹0
SGST Balance: ₹0

How to Calculate ITC Set-Off under GST?

Input Tax Credit (ITC) is the backbone of the Goods and Services Tax (GST) system. It prevents the cascading "tax on tax" effect by allowing a business to reduce its final tax liability by claiming credit for the GST paid on purchases. If you buy raw materials worth ₹1,00,000 and pay ₹18,000 as GST, that ₹18,000 sits in your Electronic Credit Ledger as an asset. When you sell your finished goods and owe the government ₹25,000 in GST, you can "set off" the ₹18,000 credit and only pay the remaining ₹7,000 in cash.

However, the government has established strict, non-negotiable rules for the order in which this ITC can be utilized. You cannot simply lump all credits together and subtract them from all liabilities. The introduction of Section 49A and Section 49B of the CGST Act completely changed the utilization algorithm. Our GST ITC Calculator Online automatically applies these latest rules to ensure perfect compliance and minimal cash outflow.

The Golden Rule: Exhaust IGST First

The most critical mandate of the new GST rules is that IGST Credit must be completely exhausted first (brought down to ₹0) before you are allowed to touch your CGST or SGST credits.

Step 1: Utilizing IGST Credit

Your IGST (Integrated GST) credit is your most flexible asset. You must use it in this exact order:

  1. First, use IGST credit to pay off your IGST liability.
  2. If IGST credit is still left, you must use it to pay off your CGST and SGST liabilities. The law allows you to split this remaining IGST credit between CGST and SGST in any proportion. A smart accountant will allocate it to minimize the overall cash payment. Our calculator handles this optimization perfectly.
  3. Rule Check: You cannot use any CGST or SGST credits until your IGST credit balance is exactly ₹0.

Step 2: Utilizing CGST Credit

Once your IGST credit is zero, you can unlock your CGST (Central GST) credit:

  1. First, use CGST credit to pay off your CGST liability.
  2. If CGST credit is still left, use it to pay off your IGST liability.
  3. CRITICAL BAN: CGST credit can never be used to pay SGST liability. The central and state tax pools cannot cross over.

Step 3: Utilizing SGST Credit

Finally, you utilize your SGST (State GST) credit:

  1. First, use SGST credit to pay off your SGST liability.
  2. If SGST credit is still left, use it to pay off your IGST liability.
  3. CRITICAL BAN: SGST credit can never be used to pay CGST liability.

Blocked Credits: Section 17(5)

While our calculator handles the mathematical set-off, you must ensure the ITC you input is actually eligible. Under Section 17(5), you cannot claim ITC on certain purchases, even if they are for business use. These include:

  • Motor vehicles for passenger transportation (unless you are in the transport or driving school business).
  • Food, beverages, outdoor catering, beauty treatments, and health services.
  • Membership of clubs, health, and fitness centers.
  • Goods given away as free samples or gifts.
  • Goods lost, stolen, destroyed, or written off.

Ensure you deduct any blocked credits before entering your "Available ITC" into the calculator.

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Frequently Asked Questions

What is the order of ITC utilization under GST?
Under the new Section 49A, IGST credit must be fully exhausted first (against IGST, then CGST/SGST liability). Only after IGST credit is zero, can you use CGST credit (against CGST, then IGST liability) and SGST credit (against SGST, then IGST liability).
Can CGST credit be used to pay SGST liability?
No. The cross-utilization of CGST and SGST is strictly prohibited. CGST credit cannot be used to pay SGST, and SGST credit cannot be used to pay CGST.
How do I minimize my cash outflow?
To minimize cash outflow, you should carefully allocate any remaining IGST credit (after paying IGST liability) towards whichever liability (CGST or SGST) requires the most cash payment, ensuring you don't leave stranded credits. Our calculator handles this distribution optimally.