How To Convert Startup Debt To Equity: Key UK Legal Steps And Documents

If you’re running a UK startup, cash can feel like it disappears the second it lands in your account. And if your business has built up director loans, founder loans, or investor loan notes, you might reach a point where servicing (or repaying) that debt just isn’t the best use of your runway.

That’s where a debt-to-equity conversion can help. In plain terms, you convert debt to equity by replacing an existing loan obligation with shares in the company.

Done properly, converting debt to equity can strengthen your balance sheet, reduce repayment pressure, and align stakeholders around growth. But it’s also a legal and corporate governance exercise - and if you get the process or paperwork wrong, you can create messy disputes, tax surprises, or even issues with future fundraising.

Below, we’ll walk you through how to convert debt to equity in a UK startup, the key legal steps, and the documents you’ll typically need.

What Does It Mean To Convert Debt To Equity?

When you convert debt to equity, you are essentially agreeing that the company won’t repay the loan in cash. Instead, the lender receives shares in the company (usually ordinary shares, but sometimes a different class).

In startup world, this can come up in a few common scenarios:

• Director or founder loans made to keep the business running.
• Bridge loans from investors before a priced funding round.
• Convertible loan notes or similar instruments where conversion is expected at a trigger event.
• Supplier or service provider debt where you agree to pay in shares (less common, but it happens).

Legally, there are a few different ways to structure this. The “right” approach depends on what your existing documents say and what you’re trying to achieve commercially.

For example, you might:

• Issue new shares to the lender in exchange for releasing the debt (a common “debt for equity swap” approach).
• Vary the loan terms and convert under a pre-agreed mechanism (typical in convertible instruments).
• Settle the debt under a settlement arrangement, then issue shares.

It can sound simple, but the legal detail matters - especially around approvals, valuation, and protecting other shareholders from unexpected dilution.

When Does A Debt-To-Equity Conversion Make Sense For A Startup?

A debt-to-equity conversion isn’t just a legal “tidy-up”. It’s usually a strategic move that changes incentives and ownership in your business.

It can make sense if:

• You need breathing room: removing a repayment obligation can help you focus on growth rather than servicing debt.
• You’re preparing for fundraising: investors often prefer a cleaner cap table and balance sheet before a round.
• The lender wants upside: converting into shares can align them with your long-term success.
• The debt is unlikely to be repaid soon: if repayment is realistically years away, conversion can be a practical reset.

But it’s not always the right move. It may be risky or inappropriate if:

• The company is near insolvency and the conversion could unfairly prejudice other creditors.
• You can’t agree on valuation, discount, or share class (and forcing it may cause long-term relationship damage).
• The conversion would breach existing shareholder rights (like pre-emption rights) or investor protections.

If you’re not sure whether you should convert debt to equity or keep the loan in place, it’s worth checking what your existing funding and governance documents say - including any loan agreements, your company’s articles, and any Shareholders Agreement.

Key Legal And Commercial Questions To Answer First

Before you start drafting documents, you’ll save yourself a lot of stress by nailing down the commercial deal points. Most “legal problems” in debt conversions are really “unclear expectations” problems.

1) Who Is The Creditor (And What Are The Loan Terms)?

Start by confirming:

• Who legally owns the debt (an individual, a company, multiple lenders).
• Whether the loan is documented and what the terms are (interest, maturity date, repayment triggers).
• Whether there are any consents required from other parties.

If the debt is a director’s loan, you may also want to understand how those arrangements typically work and how they’re recorded in practice, because it affects both governance and reporting. This often overlaps with how shareholder loans are treated in UK companies.

2) What Are You Offering In Exchange For The Debt?

Converting debt to equity usually means issuing new shares. You’ll need to agree:

• How many shares the lender receives.
• What class of shares (ordinary, preference, or another class).
• Price per share or valuation used for conversion.
• Any discount (common if conversion happens at a future funding round).

This is where many startups land on a “debt for equity swap” concept, but you still need the details to be clear and enforceable. If you’re still working through the commercial structure, it can help to sense-check common approaches used in debt for equity swaps.

3) Do You Have Authority To Issue The Shares?

In the UK, a company can’t just “hand out shares” informally. Under the Companies Act 2006 and your company’s constitution, you typically need:

• Director approval (board resolution).
• Shareholder approval in some situations (for example, to authorise the directors to allot shares under section 551 of the Companies Act 2006, to disapply any pre-emption rights, or to amend the articles).

Whether you already have authority to allot shares can depend on your articles and when the company was incorporated. If you have a Shareholders Agreement or bespoke articles, there may be additional approvals or reserved matters to follow.

4) Will Existing Shareholders Be Diluted (And Is That Acceptable)?

A conversion often dilutes existing shareholders. That’s not necessarily a problem - but it needs to be understood and properly approved.

Make sure you check:

• Whether pre-emption rights apply under your articles or shareholders’ agreement.
• Whether statutory pre-emption rights under the Companies Act 2006 apply (note: these generally relate to allotments of “equity securities” for cash consideration, and a debt release is often structured as non-cash consideration - but contractual or article-based pre-emption rights may still bite).
• Whether investors have anti-dilution protections.
• Whether the conversion triggers any consent rights (often in shareholder agreements).

5) Are There Tax And Accounting Implications?

Debt conversions can have tax and accounting consequences for both the company and the creditor. The exact treatment depends on the facts (and HMRC guidance can be nuanced), so it’s sensible to speak with your accountant or tax adviser as well as getting legal support. Sprintlaw can help with the legal documentation and process, but we don’t provide tax or accounting advice.

From a legal perspective, the key point is: your documents should match the economic reality of the deal. If the paperwork looks like one thing but you behave like it’s another, it can create real risk later (especially during due diligence).

How To Convert Debt To Equity: A Step-By-Step Legal Process

While each startup is different, most UK debt-to-equity conversions follow a fairly standard pathway.

Step 1: Review The Existing Debt Documents

Gather and review:

• The loan agreement (or loan note instrument).
• Any side letters or variations.
• Any security documents (debentures, charges).
• Board minutes or shareholder approvals connected to the loan.

If you don’t have a written agreement, it’s still possible to convert, but you’ll want to be extra careful about evidencing the debt and the agreed conversion terms. A properly documented loan position also makes future conversions much easier - many businesses start with robust Loan Agreement paperwork for exactly this reason.

Step 2: Agree The Commercial Conversion Terms

Confirm the deal terms in writing, including:

• Debt amount being converted (principal only, or principal + accrued interest).
• Conversion price or valuation.
• Share class and rights.
• Any conditions (for example, conversion only on a funding round close).
• Warranties or confirmations (often limited in early-stage companies, but still relevant).

It’s often helpful to capture these terms first in a short term sheet so everyone is aligned before you move into formal documents.

Step 3: Check Your Company’s Governance Rules

Now confirm what approvals are needed under:

• Your articles of association.
• Any shareholders agreement.
• Any investor side letters.

This step is crucial because it’s easy to accidentally breach consent rights - and that can lead to disputes or create a problem during investment due diligence.

Step 4: Prepare The Conversion Documents

Most conversions will need a written agreement to document that the creditor releases the debt in exchange for shares, plus corporate approvals to support the share issue.

Depending on structure, this may include varying the loan terms, settling the debt, and/or issuing shares under subscription documentation.

Step 5: Pass Director And Shareholder Resolutions

Typically, you’ll need at least a board resolution approving:

• The conversion terms.
• The allotment (issue) of shares to the creditor.
• Authority for a director/company secretary to sign documents and file forms.

You may also need shareholder resolutions (ordinary or special) - for example, to authorise the directors to allot shares (if authority isn’t already in place) or to disapply any applicable pre-emption rights.

In many startups, a good starting point is a Directors Resolution and matching shareholder resolutions tailored to your constitution and deal terms.

Step 6: Issue The Shares And Update Statutory Records

Once approvals are in place and documents are signed, you’ll need to complete the “company secretarial” side, including:

• Updating the register of members.
• Issuing share certificates (if you issue physical certificates).
• Updating the cap table.
• Filing the relevant forms at Companies House (commonly an SH01 for an allotment of shares).
• Updating the PSC register if the ownership/control thresholds change.

This administrative step is easy to underestimate, but it matters - especially if you plan to raise money later. Investors and acquirers will expect your statutory registers and filings to line up with your cap table.

What Documents Do You Need To Convert Debt To Equity?

The exact suite of documents depends on how your debt is structured and how sophisticated your cap table is. But for most UK startups, these are the core documents to consider.

Debt Conversion Agreement (Or Settlement/Variation Agreement)

This document sets out the legal mechanics of the conversion - typically confirming that:

• The creditor agrees to release the debt (in full or in part).
• The company agrees to issue shares on agreed terms.
• Any accrued interest treatment is clear.
• Any conditions precedent are set out (if conversion is conditional).

Sometimes the conversion is documented as a variation to the loan agreement. In other cases, it’s cleaner to use a standalone agreement (particularly if you’re converting only part of the debt, or settling a disputed amount).

Share Issue Documentation

If the conversion involves issuing new shares, you’ll usually want written share issuance terms that match your cap table and governance.

Depending on the deal, that might be done through a Share Subscription Agreement, particularly if you’re granting specific rights, warranties, or investor protections alongside the conversion.

Company Approvals (Board And Shareholder Resolutions)

As noted above, you’ll commonly need:

• Board minutes / director resolutions approving the conversion and share allotment.
• Shareholder resolutions (if required by the Companies Act 2006, your articles, or a shareholders agreement).

These approvals are not just “paperwork”. They are part of what makes the conversion legally valid and defendable if anyone later challenges it.

Updated Shareholder Arrangements

When a creditor becomes a shareholder, they often want clarity on governance, decision-making, and exit rights going forward. That may mean entering into or updating a shareholders agreement (or a deed of adherence if you already have one in place).

This is especially important if your new shareholder will have:

• Information rights.
• Consent rights over key decisions.
• Transfer restrictions and tag/drag rights.

It’s much easier to address these points upfront than try to renegotiate them when you’re in the middle of a funding round.

Execution Formalities (Especially If Using Deeds)

Some conversion documents (or related security releases) may be executed as a deed, depending on the structure and the parties involved.

If a deed is used, execution requirements are stricter, and getting signatures wrong can undermine enforceability. It’s worth ensuring you follow the correct approach to executing deeds, particularly if you’re signing on behalf of a company.

Novation Or Assignment (If The Creditor Changes)

Sometimes the debt isn’t held by the person you think it is - for example, it’s been transferred, or it’s meant to be transferred to a new vehicle before conversion.

If you need to change parties to the loan arrangement (rather than just vary terms), you may need a Deed of Novation so the right entity ends up receiving the shares.

This is one of those areas where “close enough” isn’t good enough - future due diligence will look for a clean chain of documents showing who owned the debt and how it was converted.

Common Pitfalls When You Convert Debt To Equity (And How To Avoid Them)

Converting debt to equity is common in startups - but there are a few repeat issues we see when businesses try to move quickly without tightening the legal side.

Not Getting The Approvals Right

If you issue shares without the right authority, the allotment can be challengeable and can create a major problem during fundraising or sale.

How to avoid it: check the Companies Act 2006 requirements and your constitution, then document approvals properly through board and shareholder resolutions.

Unclear Valuation Or Share Rights

“We’ll just convert at a fair price” sounds friendly - until you need to define “fair” later and everyone remembers it differently.

How to avoid it: write down the conversion mechanics (price, discount, valuation cap if relevant) and be specific about the share class and rights attached.

Forgetting About Pre-Emption Rights

Many companies (and most shareholder agreements) give existing shareholders the right of first refusal on new share issues. Assuming these don’t apply can trigger disputes.

How to avoid it: check both statutory and contractual/article-based pre-emption rights. If needed, obtain written waivers or shareholder resolutions disapplying those rights for the conversion.

Messy Cap Table And Records

If your cap table says one thing, Companies House filings say another, and the statutory registers say a third, it creates red flags for investors.

How to avoid it: treat the admin step as part of the legal process, not an afterthought.

Insolvency And Creditor Risk

If the company is distressed, converting one creditor into a shareholder can raise fairness concerns (and directors have duties to consider creditors when insolvency is on the horizon).

How to avoid it: get advice early if you’re worried about solvency, and don’t assume a conversion is “always safe” just because it doesn’t involve cash moving.

Key Takeaways

• To convert debt to equity in a UK startup, you typically replace a loan obligation with newly issued shares, using clear written conversion terms and proper company approvals.
• Before converting, you should confirm who owns the debt, what the loan terms are, and how many shares (and which class) will be issued in exchange.
• Most conversions require board resolutions, and often shareholder resolutions too - especially where allotment authorities or pre-emption rights (statutory or contractual) are involved.
• Key documents may include a debt conversion agreement (or variation/settlement agreement), share issue documents, updated shareholder arrangements, and Companies House filings.
• Common pitfalls include unclear valuation mechanics, missed consents, and messy statutory records - all of which can cause major issues in future fundraising or exit due diligence.
• Because tax, insolvency, and governance issues can overlap, it’s worth getting tailored legal advice and speaking to an accountant/tax adviser before you finalise the deal.

If you’d like help documenting a debt-to-equity conversion (including a debt for equity swap) you can reach us at 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.