Estimate the compound interest you owe under Section 16 of the MSMED Act, 2006, and the amount at risk of disallowance under Section 43B(h) of the Income Tax Act, 1961, for overdue payments to Micro and Small vendors. Add multiple vendors and get one combined report.
All calculations run locally in your browser. Your invoice data is never sent to our servers unless you choose to email yourself a copy of the results, and your vendor list is saved only in this browser (not on our servers) so you can come back and add more later. If you'd still rather not enter real vendor names, use placeholder names. Just keep the dates and amounts accurate, since dummy numbers will defeat the purpose of the calculator.
Add one vendor at a time. Once you've added everyone you want to check, open the combined report.
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* Current rate as per dicgc.org.in. Historical rates are applied automatically based on each invoice's date and payment terms.
Checking for historical rate data…
Add each overdue or previously overdue invoice for this vendor. Leave payment date blank if the invoice is still unpaid.
If part of an invoice was paid before the rest, use "+ Add payment" to record each partial payment and its date; add as many as you need. Interest and disallowance are then calculated on the remaining balance from each payment's date onward. Leave "Payment date" blank until the full remaining balance is settled.
| Invoice # | Invoice date | Base amount (₹) | GST amount (₹) | Partial payments | Payment date |
|---|
This is an estimate based on the inputs provided and standard statutory assumptions (actual/365 day count, calendar-month rests, and the RBI Bank Rate applicable on each invoice's own due date where historical data is available). Each invoice is treated independently; if a vendor is settled through a running account with payments netted across multiple invoices, work out the per-invoice allocation yourself before entering figures here. While we have taken due care in building this calculator, we make no warranty as to its accuracy and accept no financial liability for actions taken based on these figures. This is not a substitute for professional advice. Consult your CA before relying on these figures, filing a return, or issuing a demand notice.
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Happy to talk through the numbers. Questions on any of this are welcome, no obligation.