A shareholder loan is a loan from a shareholder to the company, providing flexible funding while keeping the lender's equity ownership unchanged.

A shareholder loan is a loan made by a shareholder to the company in which they hold equity. Unlike investing additional equity, which dilutes other shareholders and changes the cap table, a shareholder loan provides funding to the company in the form of debt. The shareholder retains their existing share holding and becomes a creditor of the company in respect of the loan, with the loan documented in a loan agreement that sets out the principal, interest rate, repayment terms, and any security or covenants attached.
Shareholder loans are widely used by Irish founders for short-term working capital, bridge finance between equity rounds, or to support specific projects without diluting the cap table. They can be a faster, more flexible alternative to bank borrowing or new equity, particularly when the lender is a director or controlling shareholder who is already familiar with the company's financial position. They are also commonly used to inject capital into newly incorporated subsidiaries within group structures, where formal third-party financing would be impractical.
For founders, the structure has clear advantages but also creates legal and tax considerations that need careful attention. The loan must be properly documented, must comply with the Companies Act 2014 restrictions on related party transactions, and must be reflected accurately in the company's accounts. The interest charged on the loan, if any, is also subject to specific tax treatment that founders should understand before agreeing the terms.
A shareholder loan is typically documented in a written loan agreement specifying the principal amount, the term, the interest rate, repayment schedule, and any events of default. The agreement may also include subordination provisions placing the shareholder loan behind senior bank debt, security arrangements, conversion rights to convert the loan into equity at a later date, or undertakings restricting the company's other borrowings or distributions while the loan is outstanding.
Interest on shareholder loans must be set at a commercial rate to avoid adverse tax treatment. If the loan is interest-free or carries a below-market rate, Revenue can adjust the company's tax computation to impute a deemed interest charge, with consequences for corporation tax and the shareholder's own tax position. For Irish residents lending to Irish companies, the interest received is generally taxable as income for the lender, and the company is required to deduct withholding tax on payment of interest in many cases.
The Companies Act 2014 imposes specific requirements on loans to and from directors and connected persons. A loan from a director to the company is generally permitted but must be properly authorised, recorded in the company's accounts, and disclosed in the directors' report and notes to the financial statements. Loans from the company to directors are more restricted and require shareholder approval in most cases, with significant penalties for non-compliance. Founders should distinguish carefully between loans into the company and loans out of the company, as the regulatory regime differs significantly.
For accounting purposes, a shareholder loan is recorded as a liability on the company's balance sheet, distinguishing it clearly from equity. The classification matters because shareholders, lenders, and investors look at the debt-to-equity ratio when assessing the company's financial position. A company with substantial shareholder loans may appear more leveraged than one of similar economic substance funded entirely by equity, which can affect borrowing capacity and investor perception.
The interest expense on a shareholder loan is generally deductible against the company's corporation tax liability, subject to the usual rules on the deductibility of interest. However, where the loan is from a connected party such as a director or substantial shareholder, transfer pricing rules may apply requiring the rate to be set at arm's length. Withholding tax on interest payments may also apply, particularly where the lender is non-resident or the loan is for a term exceeding one year.
For the lending shareholder, interest received is taxable income. Irish-resident individuals pay marginal income tax, USC, and PRSI on interest, while corporate lenders include it as taxable income for corporation tax purposes. Where the lender is non-resident, double tax treaty relief may reduce or eliminate Irish withholding tax, but the documentation needs to be in order to claim the relief at source. These tax considerations should be modelled before agreeing the loan terms, particularly the interest rate, to ensure the after-tax position is acceptable to both parties.
Document the loan properly. Even where the lender is a founder or close family member, a written loan agreement is essential to protect both parties and to satisfy the company's accountants and auditors. The agreement should be signed before the funds are advanced, not retrospectively. Verbal arrangements or undocumented transfers create disputes, accounting headaches, and tax risks.
Think about subordination and security. If the company has bank debt or expects to raise senior debt, the bank may require shareholder loans to be subordinated and may impose restrictions on repayment while the bank facility is outstanding. Building these provisions into the original loan agreement avoids retrofit negotiations later. Conversely, if the shareholder loan is the company's primary funding, security over company assets may be appropriate to protect the lender's position in an insolvency scenario.
Consider conversion. Many shareholder loans, particularly those used as bridge finance ahead of an equity round, include conversion provisions allowing the loan to convert into shares at the next priced round, often with a discount or valuation cap similar to a SAFE agreement. This gives the lender exposure to upside if the company succeeds while preserving downside protection through the debt structure. Take legal advice on the precise mechanics, particularly around triggers, conversion price, and the interaction with other shareholder rights, before signing the agreement.