- - It gives you something concrete to point to in due diligence if the business is later sold, refinanced, or brought before a lender.
- A loan with multiple shareholders, outside lenders, or a longer repayment horizon usually warrants a fuller agreement.
- A recurring problem in small corporations is inconsistent treatment: money is advanced informally, sometimes recorded as a loan, sometimes credited toward shares, sometimes not recorded…
If you have ever put your own money into your corporation to cover a cash-flow gap, fund an equipment purchase, or bridge the business until a bank loan came through, you likely made a shareholder loan — whether or not you called it that at the time. A shareholder loan agreement is the document that turns an informal understanding into an enforceable, well-documented debt the corporation owes you. Skipping it is one of the most common gaps that surfaces later, usually at the worst possible moment: a sale, an audit, or a falling-out with a co-owner.
This article walks through what a shareholder loan agreement is, why it matters even between an owner and their own company, and the specific terms it should cover.
Why Document a Loan to Your Own Corporation?
It can feel unnecessary to paper a loan when you are both the shareholder and the person running the company. But a written agreement does real work:
- It distinguishes the advance from equity — money the corporation must eventually repay you, rather than a capital contribution that only comes back (if at all) through dividends or a share sale.
- It gives you something concrete to point to in due diligence if the business is later sold, refinanced, or brought before a lender.
- It protects you if a co-shareholder disputes what you are owed, or if the corporation is ever wound up and creditors need to be sorted by priority.
- It supports the tax characterization of the amount, which your accountant will want clearly documented rather than reconstructed after the fact.
Most business contracts in Ontario do not legally need to be in writing to be enforceable, but the practical risk of an oral loan is proving its terms later — exactly the kind of dispute a short written agreement avoids.
Key Terms to Include
| Term | What It Should Say |
|---|---|
| Parties | The corporation's full legal name and the shareholder's full legal name. |
| Principal amount | The exact amount advanced, and whether it was a single lump sum or drawn down over time. |
| Interest | Whether interest applies, at what rate, and how often it accrues or compounds — or a clear statement that the loan is interest-free. |
| Repayment terms | Whether the loan is repayable on demand, on a fixed schedule, or on a triggering event (e.g., a future financing or sale). |
| Security (if any) | Whether the loan is unsecured (typical for small owner advances) or secured against specific corporate assets, which would generally require registration under the Personal Property Security Act (Ontario). |
| Subordination | Whether the shareholder agrees the loan ranks behind a bank or other lender's financing — a common requirement if the corporation later seeks outside financing. |
| Default | What happens if the corporation cannot repay on schedule — grace periods, and the shareholder's options. |
| Governing law | A statement that the agreement is governed by the laws of Ontario. |
Not every loan needs every one of these terms in detail — a simple, interest-free demand loan between a sole owner and their corporation can be documented in a short promissory note. A loan with multiple shareholders, outside lenders, or a longer repayment horizon usually warrants a fuller agreement.
Loan vs. Equity: Get the Characterization Right
A recurring problem in small corporations is inconsistent treatment: money is advanced informally, sometimes recorded as a loan, sometimes credited toward shares, sometimes not recorded at all. This ambiguity can cause real problems later — on a sale, a buyer's lawyer will want to know exactly what the corporation owes and to whom; on a wind-up, a documented loan is treated as a liability the corporation must address before shareholders receive anything as owners, while equity is only what is left over. Your loan agreement, together with the corporation's books, should make the characterization unambiguous from day one.
Steps to Properly Document a Shareholder Loan
- Decide the terms — principal, interest (if any), and repayment structure — ideally before or immediately after the money changes hands.
- Put it in writing as a loan agreement or promissory note, signed by both the shareholder and someone with authority to bind the corporation (which may also be you, wearing a different hat).
- Record it correctly in the corporate books — the minute book and financial statements should reflect it as a liability, consistent with the agreement.
- Tell your accountant. Interest treatment, any imputed-interest rules, and how the loan interacts with your personal tax return are accounting and tax questions outside the scope of a loan agreement itself — see our Tax page for that side of things.
- Revisit it if circumstances change — an additional advance, a partial repayment, or a change in interest terms should be documented as an amendment, not left to memory.
Common Mistakes to Avoid
- Treating a shareholder loan and a capital contribution as interchangeable, or switching between them after the fact depending on what is convenient.
- Advancing funds through informal e-transfers or cash with no note, agreement, or ledger entry to reference later.
- Assuming an unsecured, undocumented "loan" will automatically be honoured by other shareholders, a buyer, or a court if disputed.
- Forgetting to update the agreement when a second or third advance is made, leaving the paper trail incomplete.
- Never revisiting the loan when the corporation takes on outside financing — a new lender will often require the shareholder loan to be formally subordinated.
Frequently asked questions
Do I need a lawyer to write a shareholder loan agreement?
For a straightforward, interest-free demand loan from a sole owner to their own corporation, a short, properly drafted agreement is usually enough and doesn't need to be complicated. Once multiple shareholders, outside lenders, or repayment conditions are involved, having a lawyer draft or review it reduces the risk of a gap surfacing later.
Can the loan agreement be updated after it's signed?
Yes — most agreements can be amended by a signed written amendment if the parties agree, for example to adjust the interest rate or extend the repayment date. Keep amendments in the minute book alongside the original agreement.
What happens if the corporation can't repay the loan?
A loan agreement doesn't create money that isn't there. If the corporation cannot repay on the agreed terms, the parties can agree to extend, restructure, or in some cases forgive the loan — each option has different tax consequences that should be reviewed with an accountant.
Is a shareholder loan agreement the same as a shareholders' agreement?
No — they cover different things. A shareholders' agreement (often a unanimous shareholder agreement) governs how the owners run and eventually exit the corporation; a shareholder loan agreement documents a specific debt between one shareholder and the corporation. Many corporations need both.
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