Due Diligence Checklist for Angel Investors

Angel investing looks easy from the outside. You meet the founder, you like the pitch, and you write a check. In reality, the investors who succeed over time are those who slow down before they write that check. What distinguishes a considered bet from a gamble is a good due diligence checklist for angel investors.
 
In this post, we discuss what to check before investing in an early-stage Indian company, why each check matters, and where founders tend to hide problems, intentionally or otherwise.

What Due Diligence Means for an Angel Investor

Due diligence is you checking what the founder is telling you against what the documents, filings, and numbers actually are. It’s not about calling founders on a lie. Most gaps are disorganisation rather than dishonesty, especially in the first two or three years of a company. But a gap you didn’t notice before you invested is your problem the day after you wire the money.
 
Angel investors usually conduct due diligence in a compressed timeframe. You’re not running an audit team in the way that a venture fund would. That means a structured checklist is more useful, not less, because it stops you forgetting anything important when you’re moving at speed.

Due Diligence Checklist for Angel Investors: Corporate Structure

Start here, because a structural problem can kill every other check you run.
 

• Incorporation papers. Confirm PAN, CIN, and the certificate of incorporation as per the claim of the founder.
• Memorandum and Articles of Association (MOA/AOA): Verify that the listed business activities of the company are what it does.
• Shareholding Pattern: Ask for the current cap table and compare it to the ROC filings. A mismatch usually indicates undocumented share transfers or informal side deals.
• Board composition and resolutions. Look at who is on the board and if past resolutions were properly passed and filed.
• Private placement compliance. As per Section 42 of the Companies Act, 2013, any private placement of shares requires a board resolution, a private placement offer letter, and filing of Form PAS-3 within the prescribed time. This step can be omitted, in which case the round is deemed legally invalid.

Financial Records to Review

Numbers speak louder than any pitch deck. Check out:
 

1. 1. Bank statements for the last 12-24 months, not just the numbers in the founders’ spreadsheet.
2. 2. GST returns and TDS filings, verified with real revenue and payroll.
3. 3. Existing debt, including informal loans from family, friends, or directors that may not show up on a standard balance sheet.
4. 4. Burn rate and runway based on actual cash movement vs. projected numbers.
5. 5. Related party transactions, especially payments to companies owned by the founders or their relatives.

 
If a company’s financial statements have never been reviewed by an accountant, consider that a red flag, not a footnote.

Legal and Contractual Documents

This is where many angel investors undercheck, because contracts feel less urgent than financials. They aren’t.
 

• Founder agreements, co-founder agreements, vesting schedules, and what happens if a founder leaves early.
• Employment agreements and consultant contracts, especially regarding confidentiality and IP assignment.
• Contracts with customers and vendors, especially those with exclusivity clauses or long lock-in periods.
• Any pending litigation or notices, including consumer complaints, labour disputes, or intellectual property claims from third parties.
• Existing term sheets, SAFE notes, or convertible instruments and prior fundraising documents. These influence your own conversion terms.

Intellectual Property Ownership

Generally, the main asset of a startup is its IP, so ownership should be vested in the company rather than an individual founder or an outside contractor.
 

• Check that trademarks, patents, or copyrights are registered in the company’s name and not that of a founder.
• Make sure that every developer, designer, or freelancer who worked on the product signed an IP assignment agreement.
• “Sometimes, founders will personally register domain names. Make sure you check ownership of domain names and access to social media accounts.

Regulatory and Tax Position

In India, the compliance requirements around startup funding have evolved in the past few years; this section needs a current view and not assumptions from a few years back.
 

• Angel tax. From April 1, 2025, the Finance Act, 2024, eliminates Section 56(2)(viib) of the Income Tax Act, 1961, which taxed share premiums over and above their fair market value. Funding rounds closed on or after that date do not have the angel tax exposure that older rounds had, although assessments for earlier years can still be under dispute.
• FEMA compliance in case of any existing or incoming investor being a non-resident. A foreign investor investing in an Indian company has to follow the prescribed RBI route and reporting requirements.
• DPIIT recognition status. This is important for tax holidays and other startup benefits, so it’s worth checking rather than assuming.
• Annual ROC filings, as a missed statutory filing for a company, could already have penalties or director disqualification risk.

Red Flags to Watch For

There are issues to pause over, however promising the pitch may sound:
 

• Cap table numbers don’t match ROC records.
• Founders who are not willing to share bank statements or real customer contracts.
• IP held in the name of a founder, but not assigned to the company.
• Payments to related parties that lack commercial rationale.
• Record of non-filing of statutory returns or non-payment of fees to the Registrar of Companies.

 
None of this means you should walk away automatically. What they mean is you negotiate harder on terms, ask for specific representations and warranties, or hold back part of the investment until the gap gets fixed.

How Long Should Due Diligence Take?

A first round of angel funding usually involves a concentrated review that lasts two to four weeks, depending on the state of the company’s records. Companies that have a clean data room in order ahead of time, with incorporation documents, contracts, and financials all sorted and ready, tend to close faster because the investor side has less to chase.

Getting Support With the Process

It’s hard to maintain a full due diligence checklist for angel investors on your own while also working a day job or running a portfolio of other deals. A number of angel investors in India now hire legal and financial advisory companies to do this review on their behalf. For example, The Startup Gig helps investors do due diligence for investment transactions, including document review, risk flagging, and creating structured DD reports, as well as supporting the transaction documentation once terms are agreed upon. If you’re a regular investor, having a consistent process from deal to deal, rather than starting from ground zero each time, tends to save you time and money in the long run.

Final Thoughts

A good due diligence checklist for angel investors isn’t about slowing deals down for caution’s sake. This is about making sure the risk you’re taking is the risk you understand. Founders with their papers in order will not care for the questions. People who resist basic checks are usually telling you something worth hearing.

Frequently Asked Questions