How to Legally Structure Agreements When Seeking Investors for Your Business

Attracting outside funding can transform your business from ambitious idea to thriving reality. Whether you’re setting up a new venture or taking your startup to the next level, learning how to find investors is often easier said than done. But here’s the catch: before you bring anyone on board-whether it’s friends, family, angel investors or venture capitalists-the legal foundations you set will make or break your future success.

If you want to secure investment and grow your business on your own terms, it’s vital to have the right agreements in place from day one. Keep reading to find out how to legally structure your deals, protect your interests, and impress potential investors with your professionalism.

Why Getting Your Legal Structure Right Matters When You Find Investors

It’s completely normal to feel both excited and intimidated when you’re trying to find investors. After all, someone else’s money-and their faith in your idea-is on the line. The last thing you want is a handshake or loose email trail causing disputes, lost opportunities, or even legal action down the track.

Structuring your investor agreements the right way can:

• Set clear expectations and boundaries from the start
• Help avoid misunderstandings and disputes
• Protect your ownership, control, and intellectual property
• Make your business much more attractive to future investors or buyers
• Ensure you stay compliant with UK law and relevant regulations

In other words-putting solid, tailored legal documents in place is just as important as your business plan or product development. Let’s break down exactly what that looks like.

What Do Investors Usually Look For?

Before we get into the legal nitty-gritty, it’s helpful to step into an investor’s shoes. What are most investors checking for before they put any money into your venture?

• Clarity about who owns what - How is the business structured? Who are the shareholders or partners?
• Well-drafted agreements - Are the investment terms, shareholder rights, and exit routes clearly documented and legally robust?
• Good governance - Are there company policies, board structures, or checks and balances in place?
• Legal compliance - Is the business set up and trading in line with UK law, including filings at Companies House and regulatory permissions?
• IP ownership - Is your brand, software or invention actually protected and owned by the right entity?

If you can confidently answer “yes” to all the above, you’re in a great position to attract serious investors-and to negotiate with confidence on your own terms.

What Business Structures Should You Consider Before Seeking Investment?

How you structure your business affects every agreement you put in place with investors. In the UK, the main options are:

1. Sole Trader

• Simplest setup-no legal distinction between you and your business
• Generally not suited for bringing in outside investors, as you can’t issue shares
• Full personal liability for business debts

2. Partnership

• Two or more people running a business together
• Still carries unlimited personal liability (unless set up as an LLP-Limited Liability Partnership)
• Potential for partnership disputes without a robust partnership agreement

3. Limited Company (LTD)

• Most common structure for startups seeking outside investment
• Shares can be issued to new investors in exchange for capital
• Directors’ liability is generally limited
• Easier to set up a professional ‘cap table’ and formal governance

You can learn more about choosing the right company structure for growth here.

Key takeaway: If you haven’t yet, forming a Limited Company is almost always the best starting point if you plan to seek investment-both for legal protection and practical fundraising.

What Key Legal Agreements Do You Need to Find Investors?

Once your company structure is set, the next step is to prepare robust legal documents that define everyone’s role, risks, and rewards. The main agreements you’ll encounter are:

1. Shareholders’ Agreement

This is your investor ‘rulebook’. It covers:

• Who controls what decisions (such as issuing new shares, hiring directors, selling the business)
• How profits-and losses-are shared out
• What happens if someone wants to leave or sell their shares
• Dispute resolution processes
• Confidentiality and non-compete clauses

A well-drafted shareholders’ agreement will protect all parties and reassure investors that your company is operating professionally. Don’t rely on off-the-shelf templates-get yours tailored by a legal expert.

2. Investment Agreement or Share Subscription Agreement

If an investor wants to buy shares, you’ll need a share subscription agreement (for newly issued shares) or a share purchase agreement (for existing shares). These documents set out:

• How much is invested and at what valuation
• How many shares will be issued and to whom
• Any conditions that must be met before investment is finalised (‘conditions precedent’)
• What happens if something goes wrong (‘warranties’ and ‘indemnities’)

These agreements are the main ‘contract’ for investment, so clarity and accuracy here are essential.

3. Option Agreements & Convertible Notes

Some investors prefer to take options (the right to buy shares later at a set price) or invest via convertible notes (a type of loan that converts to shares in the future). These flexible structures can be particularly helpful in early-stage fundraising.

• SAFE notes and convertible loan notes need to be carefully drafted to reflect commercial intent and tax/legal impacts.
• Option agreements spell out vesting, exercise price, and how/when they convert to equity.

For a breakdown of these structures and when to use them, check out our article: Convertible Debt Conversion: Key Steps & Legal Essentials.

4. IP Assignment and Confidentiality Agreements

Investors want reassurance your business owns its IP-whether that’s code, designs, trademarks or trade secrets.

• Use clear IP assignment documents so all IP is transferred to your company (not held by individuals)
• Always have a non-disclosure agreement (NDA) before disclosing sensitive information

This clears up future ownership issues and boosts your credibility.

What Legal Steps Should You Take Before Accepting Investment?

Securing outside funding is more than just getting signatures. Here’s a checklist to make sure your legal foundations are solid:

1. Register your company - Make sure your business is set up correctly at Companies House and all statutory filings are up to date.
2. Prepare your cap table - Detail exactly who owns what shares or options (essential for investor due diligence).
3. Protect your intellectual property - File your trademarks, confirm all assets are owned by the company, and transfer any founder IP.
4. Draft/review your agreements - Negotiate investment, shareholder, and option agreements before taking funds.
5. Understand compliance obligations - Know your duties under the Companies Act 2006, GDPR/UK Data Protection Act 2018, anti-money laundering (AML) and (if relevant) Financial Conduct Authority (FCA) regulations.
6. Get tailored legal advice - Having a legal expert tailor your documentation will protect both you and your investors in the long run.

You can also read about setting up employee share schemes if you plan to incentivise your team while raising capital.

What Common Risks Can You Avoid By Structuring Agreements Properly?

Some of the most expensive business disputes and lost opportunities we see at Sprintlaw come from missing or poorly-drafted investor agreements. When you get your legal structures right, you’ll avoid:

• Shareholder deadlocks or power struggles
• Investors demanding early repayment or threatening litigation
• Founders losing control of their business unintentionally
• Loss of company IP or brand confusion
• Problems raising future rounds due to unclear ownership (cap table muddles)
• Regulatory fines or tax headaches from non-compliance

It’s far easier-and cheaper-to set things up right from the start than to fix problems later. If you’re unsure what types of agreements or clauses your situation calls for, don’t hesitate to get in touch with an expert for advice tailored to your needs.

Are There UK Laws You Need to Be Aware Of?

Most investment activity in the UK is driven by contract law, but there are several critical statutes to keep on your radar:

• Companies Act 2006 - Governs company operations, share issues, record-keeping, and duties of directors and shareholders.
• Financial Services and Markets Act 2000 (FSMA) - Places restrictions on some investment offers; check if you need FCA authorisation (especially with equity crowdfunding, pooled investments or public offers).
• GDPR and Data Protection Act 2018 - Rules for handling personal data (e.g. information about investors, employees or customers).
• Anti-Money Laundering (AML) - Know Your Customer (KYC) processes may be required, especially with larger investments or overseas capital.
• Intellectual Property Law - Protection of your trademark, copyright and patent rights when disclosing information or transferring ownership.

For most early-stage startups, the most important thing is to be sure you’re not accidentally making a public offer of shares or failing to comply with basic corporate governance. If in doubt, have a lawyer check your approach before circulating offer documents or accepting funds.

Investor Structures: Should You Use Equity or Debt?

Not all investment comes in the form of buying shares. Depending on your needs-and your investors’ appetite-there are a few main options:

Equity Investment

• Investor receives shares in your company (becoming a partial owner)
• Best suited for high-growth startups and scalable businesses
• Requires clear shareholder agreements and Companies House filings

Convertible Notes

• Investor lends you money today, which converts to shares later (usually at a discount or with a bonus for early risk)
• Popular for early-stage fundraising as they can delay difficult negotiations on valuation
• See our guide to convertible notes for more info

Debt Investment (Loans)

• Investor lends funds which you repay over time with interest
• Easier for some business types or lower-risk projects
• Check for requirements under the Consumer Credit Act and Companies Act if granting security or issuing debentures

Each method has significant legal and commercial implications. A legal expert can guide you to the structure that fits your business stage and growth plans.

How Do You Protect Your Interests When Negotiating With Investors?

Raising funds often means negotiating with people who’ve done this before. To avoid “losing control” or missing key details, keep these tips in mind:

• Never sign anything you don’t fully understand-have investment contracts reviewed carefully
• Ensure all agreements spell out decision-making rights, share classes, and exit conditions
• Don’t rush your due diligence - check your investor’s background, reputation, and track record
• Control access to sensitive business information with robust NDAs and clear IP assignment
• Protect yourself from unfair dilution or “dead equity” by seeking legal advice before issuing new shares

If things move quickly or you’re under pressure, don’t be afraid to say you need time to have your solicitor review the agreement. This is standard practice among experienced business owners and shows you take your business seriously.

Key Takeaways

• Finding investors for your business is an exciting step-but requires strong legal foundations to succeed and stay protected.
• Setting up as a Limited Company is usually the best way to attract investors and issue shares in the UK.
• Have robust legal agreements in place, including a Shareholders’ Agreement, Share Subscription Agreement, and any relevant NDA or IP transfer documents.
• Understand and comply with key UK laws: Companies Act 2006, Data Protection Act 2018, and financial services regulation.
• Avoid “DIY” contracts or cheap templates-invest in professional legal support to avoid costly mistakes and disputes down the track.
• Choosing the right investor structure (equity, convertible note, or loan) requires careful legal and financial consideration.

Need Help Structuring Investor Agreements?

If you’re trying to find investors and want to make sure your business is protected from day one, Sprintlaw can help. Reach us for a free, no-obligations chat on 08081347754 or email team@sprintlaw.co.uk-we’ll help you navigate every step, from company formation to investment agreements, so you can focus on building your business.