Helping a Family Member Start a Business: Loan or Investment?

Your brother wants to open a café. Your daughter wants to launch her online store. They've asked you for $20,000 to get started, and you want to help.

Before the money moves, there's one question you need to answer clearly — for both of you: is this a loan, or are you buying a piece of the business? They sound similar. Legally, they're completely different documents with completely different consequences, and mixing them up is one of the more expensive mistakes families make.

This article is general information, not legal, tax, or financial advice. For anything beyond a straightforward personal loan, speak with an accountant or lawyer before the money changes hands.

The Core Difference

A loan is simple: you hand over money, they pay it back on agreed terms, and you don't own any part of the business. You're a creditor, not an owner. If the business fails, you're still owed the money (even if collecting it becomes difficult) — but you have no say in how the business is run.

An investment is a different thing entirely: you're buying an ownership stake — shares, or a percentage of the business — in exchange for the money. You may be entitled to a share of future profits, but you also share the risk if the business loses money, and depending on the structure, you may have a say in business decisions or even carry some liability for business debts.

Default to a Loan Unless You Actually Want to Own Part of the Business

For most families, a loan is the right structure — and it's the one you can actually document quickly and affordably. An investment agreement is a far more complex document: it needs to specify what percentage of the business you're getting, how profits and losses are shared, what happens if the business is sold, and what say (if any) you have in decisions. That's genuinely a job for a lawyer drafting a shareholder or partnership agreement, not a simple template.

If what you actually want is to help out and get your money back over time — not to own part of your daughter's business — a loan agreement is the right document, and it's the one SignedSorted drafts.

What Makes It a Genuine Loan (Not a Disguised Investment)

A few signs that what you've actually agreed to is a loan, not an equity stake:

• Repayment is a fixed amount or schedule — it doesn't rise and fall with how well the business performs
• You don't get a percentage of profits, just your principal back (with or without interest)
• You have no say in day-to-day business decisions
• The debt is owed to you personally by your family member, not "by the business"

If repayment is meant to scale with the business's success — "I'll pay you back more if it does well" — that starts to look like a profit-share or equity arrangement in substance, even if you call it a loan. Be honest with yourself about which one you're actually agreeing to.

What a Business-Purpose Family Loan Should Cover

• The amount and purpose — note it's for business use, and state clearly that it doesn't create any ownership interest
• Repayment terms — a fixed schedule, or a realistic milestone (e.g. "repayable once the business reaches $X in monthly revenue," if that's genuinely the plan)
• Interest — many family business loans are interest-free; state it explicitly either way
• What happens if the business fails — this is the question personal loans between friends rarely need to answer, but a business loan should. Is the debt still personally owed by your family member if the business closes? Most family loan agreements say yes — the loan was to the person, not the business — but say so explicitly rather than leaving it to be argued about later.

When You Should Actually Consider Being an Investor

If what you really want is a share of the business's future upside — not just your money back — say so upfront, and get a proper shareholder or partnership agreement drafted by a lawyer. This isn't something to improvise with a loan template, because it needs to address ownership percentages, decision-making rights, what happens if the business is sold, and potential liability for business debts. SignedSorted doesn't draft this type of agreement — it's a genuinely different legal instrument from a loan.

Sources: Xero AU — Friends and Family Loans, ASIC MoneySmart — Lending to Family and Friends.

Frequently Asked Questions

Can I charge interest on a business loan to a family member?

Yes. It's common and reasonable, especially for larger amounts or longer terms. If you do, the interest you receive is assessable income and should be declared to the ATO.

What if my family member wants to pay me back "when the business can afford it"?

That's a real repayment structure some families use, but it needs to be specific enough to be enforceable — for example, tied to a clear milestone or a maximum timeframe, not left completely open-ended. "Whenever it's convenient" isn't a repayment term a court can act on.

Is this different from lending money to a friend for personal reasons?

The core loan-agreement principles are the same, but a business-purpose loan should explicitly address what happens if the business fails, since that's a real, specific risk a personal loan doesn't usually need to cover.

Do I need an accountant as well as a loan agreement?

For amounts over roughly $10,000-$20,000, or anything with an interest rate attached, it's worth a quick conversation with an accountant about how the loan and any interest income should be treated for tax purposes.