Key Takeaways
- Due diligence rarely fails on the headline numbers. It fails on the reconciliations: GST returns that do not match the books, TDS deducted but not deposited, and statutory filings that are behind.
- The fastest deal-killers are unresolved litigation, director disqualification, undisclosed related-party transactions, and a messy cap table.
- For startups that have already taken foreign money, missing FC-GPR filings under FEMA are a common and serious red flag.
- MSME dues unpaid beyond the statutory window are now disallowed under Section 43B(h), which directly distorts reported profit and gets flagged.
- Angel tax under Section 56(2)(viib) was abolished for all investors from April 2025, removing one historic diligence worry, but valuation documentation still matters.
- Diligence readiness is built over years of clean filing, not assembled in the two weeks before a term sheet.
A term sheet is not a deal. Between signing and money in the bank sits due diligence, where the investor's accountants and lawyers go through your company looking for reasons to renegotiate the valuation or walk away. Most founders treat this as a document-gathering exercise. The investors treat it as a risk hunt. The gap between those two views is where deals die.
This checklist is written from the investor's side of the table. It tells you what they actually look for, and which findings cause a discount, a delay, or a dead deal.
Looking for expert help with financial due diligence checklist startup India, compliance services? The team at Tax Garden, based in Kondapur, Hyderabad, helps Indian SMEs stay compliant end-to-end: filings, notices, and advisory, all in one place.
The Documents Every Diligence Team Will Demand
Before any analysis begins, the investor's team asks for a data room. If you cannot produce these quickly and cleanly, the process stalls and confidence drops before the numbers are even reviewed.
- Audited financial statements for the last three years, plus the latest management accounts.
- All GST returns (GSTR-1, GSTR-3B, GSTR-9) and a reconciliation against the books.
- TDS returns, challans, and Form 26AS or the TRACES compliance record.
- Income tax returns and assessment or notice history.
- ROC filings: AOC-4, MGT-7, board resolutions, and statutory registers.
- The cap table, share certificates, ESOP scheme documents, and all prior funding agreements.
- Material contracts, IP assignment agreements, and a litigation summary.
The Red Flags That Move Valuation
Here is what the diligence team is genuinely scanning for, ranked by how badly each one hurts.
Comparison
What Investors Flag, and How Much It Hurts
Findings that trigger a discount, an escrow, or a walk-away
| Parameter | Red Flag | Why It Hurts the Deal |
|---|---|---|
| GST mismatch | GSTR-1, GSTR-3B, and the books do not reconcile | Signals revenue misstatement or weak controls; invites a tax demand the investor would inherit |
| TDS defaults | Tax deducted but not deposited, or not deducted at all | Creates interest, penalty, and a 30% expense disallowance that distorts reported profit |
| Behind on ROC | AOC-4 or MGT-7 filings overdue for years | Uncapped late fees and possible director disqualification under Section 164(2) |
| FEMA non-compliance | Foreign investment received without filing FC-GPR | Past foreign funding is technically irregular; compounding and penalties loom |
| Related-party transactions | Undisclosed payments to founders or their entities | Raises governance and tax-avoidance concerns; erodes trust instantly |
| MSME dues | Vendor payments overdue beyond the statutory window | Disallowed under Section 43B(h), inflating taxable profit and signalling cash stress |
| Messy cap table | Unvested founder shares, undocumented SAFEs, verbal promises | Ownership is uncertain; investor cannot be sure what they are buying |
Takeaway: None of these are about the size of your revenue. They are about whether your reported numbers can be trusted and whether hidden liabilities will surface after the investor wires money.
Source: Income Tax Act Section 40(a)(ia), Section 43B(h); Companies Act 2013 Section 164(2); FEMA FC-GPR reporting
The Compliance Items Founders Most Often Miss
A few of these deserve a closer look because they are recent or commonly misunderstood.
MSME dues, Section 43B(h). From FY 2023-24, any amount owed to a registered micro or small enterprise that is not paid within the time limit agreed (capped at 45 days) is disallowed as an expense until actually paid. Diligence teams now test this directly because it both inflates taxable profit and reveals how a company treats its small suppliers.
Foreign investment, FC-GPR. If your startup has ever issued shares to a non-resident, you were required to report it to the RBI by filing Form FC-GPR within 30 days of allotment. Many early-stage founders raised a foreign angel round and never filed. This surfaces immediately in diligence and requires compounding with the RBI before a fresh foreign round can close.
Angel tax, Section 56(2)(viib). The angel tax, which taxed share premium above fair market value as income, was abolished for all classes of investors from April 2025. This removed a long-standing diligence headache for startups that raised at a premium. Valuation reports still matter for governance, but the specific angel-tax exposure is gone.
Cash and related-party hygiene. Section 269ST disallows cash receipts of Rs 2 lakh or more in aggregate from a person in a day. Diligence teams look for cash transactions near these limits and for any commingling of personal and business funds, which is one of the most common findings in founder-run companies.
How to Be Ready Before You Need to Be
You cannot manufacture clean compliance in the fortnight before a term sheet. The companies that sail through diligence do four things continuously:
Step-by-Step Guide
Building Diligence Readiness Year Round
The habits that turn diligence into a formality
Reconcile monthly, not annually
Match GSTR-1, GSTR-3B, and the books every month. The longer a mismatch sits, the harder and more expensive it is to fix.
DisciplineNever let a statutory filing lapse
TDS, GST, and ROC filings on time, every cycle. A clean filing history is the single strongest signal of a well-run company.
FilingKeep the cap table and registers current
Every share issue, ESOP grant, and transfer documented and reflected in the statutory registers the same week it happens.
RecordsRun a self-diligence once a year
Have your CA review the company as an investor would. Fix what they flag before an investor ever sees it.
ReviewSource: Tax Garden compliance practice
The investor is not looking for perfection. They are looking for evidence that you run a disciplined company whose numbers mean what they say. Build that evidence over years and diligence becomes a formality instead of a threat to your raise.
Due Diligence FAQs
What is the most common red flag in startup due diligence?
Reconciliation gaps. GST returns that do not match the books, and TDS that was deducted but not deposited. These signal weak controls and create tax liabilities the investor would inherit, so they are scrutinised first.
We took a foreign angel round years ago. Why does it matter now?
Any share issue to a non-resident required filing Form FC-GPR with the RBI within 30 days of allotment. If that was missed, the past funding is technically non-compliant under FEMA and usually must be regularised through compounding before a new foreign round can close.
Is angel tax still a diligence concern?
No. Section 56(2)(viib) angel tax was abolished for all investors from April 2025. Share premium above fair value is no longer taxed as income, though you should still keep valuation documentation for governance.
How do unpaid MSME dues affect diligence?
Under Section 43B(h), amounts owed to registered micro and small enterprises beyond the statutory window are disallowed as an expense until paid, which inflates taxable profit. Diligence teams test this and read it as a sign of cash stress.
How early should we prepare for due diligence?
Continuously. Clean, reconciled, on-time filings are built over years. The companies that pass diligence quickly are the ones that never let compliance lapse, not the ones that scramble after a term sheet.
Sources: Income Tax Act 1961, Section 40(a)(ia), Section 43B(h), Section 56(2)(viib) as amended by the Finance Act 2024, and Section 269ST; Companies Act 2013, Section 164(2); Foreign Exchange Management Act and RBI FC-GPR reporting requirements; MSMED Act 2006 payment timelines. Compliance rules change frequently, so confirm current requirements with a qualified professional before relying on them. This article is general information and not advice on your specific situation.