Form MSME explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
MSME-1 sits between two statutes.
The MSMED Act, 2006 sets a maximum credit period for paying micro and small suppliers. The Companies Act — through an order under Section 405 — makes you report to the MCA when you breach it.
So it isn't really a company law filing at all. It's a disclosure mechanism, built to make late payment to small suppliers visible.
Two filings a year — 30 April and 31 October. Triggered where you owe a micro or small supplier beyond 45 days. No filing fee. ₹20,000 penalty plus ₹1,000 a day, and it applies equally to a return that's incorrect or incomplete.
Where does the 45 days come from?
Section 15 of the MSMED Act requires a buyer to pay a micro or small supplier:
- by the date agreed in writing; and
- in any case within forty-five days of the day of acceptance or deemed acceptance.
With no written agreement, the period is fifteen days, not forty-five.
"Day of acceptance" is the day of actual delivery of the goods or rendering of the service — or, where you object in writing within fifteen days of delivery, the day your objection is removed. "Day of deemed acceptance" is the delivery date where you raise no objection within those fifteen days.
Note what that means: the clock does not run from the invoice date.
Two consequences of missing it:
Section 16 interest — compound interest with monthly rests at three times the RBI bank rate, from the appointed day. And it isn't deductible for income tax.
Section 43B(h) of the Income-tax Act — a payment to a micro or small enterprise beyond the Section 15 limit is deductible only in the year you actually pay. So the company law filing and the tax disallowance run together, off the same facts.
Who has to file?
Every company that receives goods or services from a micro or small enterprise and whose payment to that supplier crosses forty-five days.
Things worth being precise about:
- The obligation is on companies only. LLPs, partnerships and proprietorships carry the MSMED Act liability but make no MCA filing.
- Only micro and small enterprises count. Dues to a medium enterprise are outside both Section 15 and MSME-1.
- The test is on outstanding amounts at the end of the half-year that have crossed forty-five days — not on your total MSME purchases.
- Private and public companies both file.
| Period covered | Due |
|---|---|
| 1 April – 30 September | 31 October |
| 1 October – 31 March | 30 April |
You file even if the dues have since been paid. The return reports the position during the half-year.
What does the form ask for?
| Field | Detail |
|---|---|
| Total outstanding at the half-year end | Aggregate |
| Supplier particulars | Name, PAN |
| Amount due | Per supplier |
| Date from which due | Per invoice, or aggregate as applicable |
| Reasons for delay | Free text — and a genuine reason is expected |
Reconcile all of it to the trade payables ageing schedule under the amended Schedule III, which separately requires disclosure of MSME payables in ageing buckets. Where the two don't agree, expect a question.
How do you know which vendors are MSMEs?
You can't report what you haven't identified. Build the mechanism:
- Collect Udyam Registration Numbers at onboarding. Make it a field in the vendor master, not an afterthought.
- Take a declaration from each vendor stating its classification — micro, small, medium or unregistered — and undertaking to tell you when it changes.
- Verify the Udyam number on the Udyam portal. It's publicly searchable.
- Flag micro and small vendors in the accounting system so ageing can be pulled by classification.
- Re-confirm annually. Classification moves with investment and turnover.
Current thresholds:
| Category | Investment in plant, machinery or equipment | Turnover |
|---|---|---|
| Micro | Up to ₹2.5 crore | Up to ₹10 crore |
| Small | Up to ₹25 crore | Up to ₹100 crore |
| Medium | Up to ₹125 crore | Up to ₹500 crore |
A supplier without Udyam registration isn't a covered supplier for Section 15 or MSME-1 — the statutory benefit follows the registration.
What's the penalty?
There's no filing fee for MSME-1. But there is a penalty.
Section 405(4): where a company fails to comply with a Section 405 order, or knowingly furnishes information that is incorrect or incomplete in any material respect, the company and every officer in default are liable to ₹20,000, and for a continuing failure a further ₹1,000 per day, up to ₹3,00,000.
Read that middle clause again. Incorrect or incomplete counts. Filing a nil return when dues actually existed isn't a safe harbour — it's a separate limb of the same penalty. Full penalty chart →
Filing checklist
- Pull trade payables ageing at 30 September or 31 March, split by MSME classification.
- Identify balances beyond forty-five days from acceptance or deemed acceptance.
- Exclude medium enterprises and unregistered suppliers.
- Confirm each supplier's Udyam registration and PAN.
- Write supplier-specific reasons for delay — not a generic line repeated down the column.
- Reconcile against the Schedule III MSME disclosure in the financial statements.
- File by 31 October or 30 April.
- Compute Section 16 interest where it applies, disclose it, and flag the Section 43B(h) disallowance in the tax computation.
Key takeaways
- Two filings a year, 30 April and 31 October, and no fee.
- The 45 days runs from acceptance or deemed acceptance, not the invoice date.
- No written agreement means fifteen days, not forty-five.
- Medium enterprises are out of scope; micro and small only.
- Udyam registration is the gate — unregistered suppliers aren't covered.
- An incorrect or incomplete return carries the same ₹20,000 penalty as not filing.
- Section 43B(h) disallows the deduction until you actually pay. That's usually the bigger number.
Read next
- Annual Compliance Calendar for Private Companies
- Compliance Checklist for a Private Limited Company
- Form AOC-4: Filing Financial Statements
- Penalties for Non-Compliance: Section-wise Chart
Disclaimer: Positions stated as on 4 September 2026. MSMED classification thresholds and the Section 405 order are subject to amendment — verify the current position and take professional advice.