Free GST Late Fee Calculator
Filed a GST return late? Work out the late fee and the 18% interest in seconds. Set the due date and the date you filed, and see the days late, the fee split into CGST and SGST, and the total to pay.
Interest is worked out on this amount. A nil return has no tax, so it is set to zero.
Slabs and caps are set by CBIC and change from time to time. Adjust these to the current notification.
0 days late on GSTR-3B
- Days late
- 0
- Late fee
- ₹0.00
- CGST
- ₹0.00
- SGST
- ₹0.00
- Interest
- ₹0.00
- Total payable
- ₹0.00
Set both the due date and the filing date to see the late fee.
Handy for a quick check. Confirm the current slabs on the GST portal before you pay.
Work out the late fee in four steps.
Pick the return, set the two dates, add the tax you paid in cash, and read the late fee, the interest and the total. Everything updates as you type.
Pick the return
Choose the return you filed late, like GSTR-3B or GSTR-1, and say whether it was a nil return.
Enter the dates
Set the due date and the date you actually filed. The tool counts the days in between.
Add the tax paid in cash
Enter the tax you settled in cash so the tool can work out the 18% interest. A nil return has none.
Read the total
See the days late, the late fee split into CGST and SGST, the interest, and the total to pay.
What makes up the total.
A late return usually carries two charges, a fixed late fee for each day and interest on the tax you owe. Here is how each one works.
Late fee and interest are separate
The late fee is a fixed charge per day for filing late. Interest is charged on the tax you owe. A late return usually attracts both.
Nil returns cost less
A return with no tax to pay is charged a lower per-day late fee than a return that carries tax, and it has no interest because there is no tax outstanding.
Split into CGST and SGST
The late fee is levied equally under the central and state Acts, so the total is shown as half CGST and half SGST.
A daily cap applies
The late fee runs per day but stops at a maximum per return. The cap has been revised several times and, for the annual return, depends on turnover.
Interest is 18% a year
Interest is charged at 18% per year on the tax paid in cash, from the day after the due date to the day you pay. Wrongly claimed input tax credit is charged at 24%.
The default rates.
The figures the calculator starts with. Each one is editable, because CBIC revises the slabs and caps from time to time, so confirm the current value before you rely on it.
| Charge | Rate | Split |
|---|---|---|
| Return with tax | ₹50 a day | ₹25 CGST + ₹25 SGST |
| Nil return | ₹20 a day | ₹10 CGST + ₹10 SGST |
| Interest on tax | 18% a year | 24% on wrong input tax credit |
The per-day late fee stops at a maximum per return. For the annual return GSTR-9 the cap is a share of turnover, so set the cap to your own limit.
Never pay a late fee again.
This tool is great for a one-off check. But if you file across many GSTINs and want returns, reconciliations and reminders handled so a due date never slips, you want that built into your billing. That is the kind of GST, billing and ERP software we build at Techliphant, shaped around how your business actually works.
Working out the tax itself? Try the GST calculator, or the income tax calculator.
Common GST late fee questions.
It is a fixed charge for filing a GST return after its due date. For a return that carries tax it is commonly Rs 50 a day, made up of Rs 25 under CGST and Rs 25 under SGST. For a nil return it is lower, commonly Rs 20 a day. The fee adds up each day until you file, up to a maximum per return.
Count the number of days from the day after the due date to the date you file, then multiply by the per-day rate, and stop at the maximum cap. So late fee = days late x per-day rate, capped at the maximum. The total is split equally into CGST and SGST. This calculator does the counting and the cap for you.
A nil return, one with no sales and no tax, is charged a lower per-day late fee, commonly Rs 20 a day (Rs 10 CGST and Rs 10 SGST), up to the cap. There is no interest on a nil return because there is no tax outstanding. Turn on the nil toggle and the tool uses the lower rate.
Interest is charged at 18% per year on the tax you pay in cash, from the day after the due date to the day of payment. So interest = tax x 18% x days late / 365. Input tax credit claimed or used wrongly is charged at 24% instead. The calculator uses 18% by default and lets you change it.
Yes. The per-day fee stops at a cap per return. That cap has been revised several times through notifications and, for smaller taxpayers, is lower. Because it changes, the calculator lets you set the cap so your result matches the current rule.
For GSTR-9 the late fee is capped as a percentage of your turnover in the state, not at a flat rupee figure, and the per-day rate can differ by turnover slab. Pick GSTR-9, then set the per-day rate and the cap to the figures that apply to your turnover.
It runs from the day after the due date up to the date you actually pay the tax. Filing sooner reduces both the late fee and the interest, so it is usually worth filing even a late return as early as you can.
The tool ships with the widely used figures, but GST late fee slabs, caps and interest are set by CBIC and are revised from time to time. Every rate and cap here is editable, so check the latest notification or your GST portal and adjust the fields to match before you rely on the number.
Yes on both. It is free, there is no sign-up, and it runs entirely in your browser. Nothing you type is sent anywhere or saved, so your figures stay on your own device.
It is great for a quick check on one late return. If you file across many GSTINs and want returns, reconciliations and reminders handled for you so late fees never happen, that is the kind of billing and GST software we build at Techliphant, shaped around how your business runs.
Private by design: this calculator runs entirely in your browser, so nothing you type is uploaded or stored. GST late fee slabs, caps and interest are set by CBIC and are revised from time to time, so the figures here are editable defaults, not advice. Confirm the current rates on the GST portal or with your tax adviser before you pay.
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