Is it safer to use a joint venture structure instead of simple co-ownership?

For higher-risk or more commercial projects, a ring-fenced joint venture structure can be safer, because it keeps the project’s risks and debts contained to that asset. Simple co-ownership is often fine for long-term homes or straightforward investments, provided you have clear agreements. The right choice depends on risk, complexity and how separate you need the project from your other assets.

Article

Co‑Buying Property as a Small Business Owner: What to Get Right

A decision-grade guide for Australian small business owners thinking about co-buying a property with friends, family or business partners. Covers structures, risks, finance and practical steps you can take this week.

Published 8 Aug 2026Updated 27 Aug 2026Reviewed 21 Aug 20268 min read

Key Takeaway

Co-buying property as a small business owner can boost borrowing capacity and shared deposits, but it also concentrates risk and creates complex exit and tax issues if not structured correctly. Lenders typically assess each co-owner’s full share of the debt, and cross-collateralisation can trap both business and personal assets. Clear agreements on contributions, exits and buffers let business owners co-buy more safely and decide this week whether to proceed or pause.

Co‑Buying Property as a Small Business Owner: What to Get Right

This topic is covered in full on Tailored Loans Sydney

Read the full guide on tailoredloans.sydney

Co‑buying a property as a small business owner means purchasing with friends, family or business partners and sharing the loan, ownership and risks. It can fast‑track your home or investment plans but also ties your business fortunes to other people’s decisions, so the structure, documents and buffers need to be right from the start.

In one sitting, you should be able to answer three questions: 1) Who owns what? 2) Who pays what, even if business income drops? 3) How does each person get out?

Illustration of three co-owners with different ownership shares of a property. Tenants in common lets co-buyers hold different ownership percentages.

When co‑buying actually makes sense for business owners

For many self‑employed borrowers, co‑buying is attractive because your income looks lumpy on paper and lenders are cautious.

Good reasons to consider co‑buying

You can’t qualify alone on today’s income, but could comfortably afford your share.
You want to buy business premises with a partner and split costs.
You’re co‑investing with family to spread risk and diversify beyond your business.

If your main goal is simply “more debt than I can support”, co‑buying is a red flag. For a worked example of balancing borrowing power and safety, see how we structured a loan for a hospitality client in /insights/self-employed-mascot-cafe-owner-home-business-strong.

Quick worked example: borrowing power in a co‑buy

Assume:

Property price: $1.2m
Deposit: 20% ($240k) between two buyers
Loan: $960k P&I over 30 years
Indicative rate: 6.0% p.a. (illustrative only)

Approximate repayment: about $5,760/month.

Each person thinks they’re on the hook for half ($2,880). In reality, the lender typically has both of you jointly and severally liable for the full $960k. If your business hits a rough patch, your co‑owner is effectively carrying your share whether they like it or not.

Joint tenants vs tenants in common (and what business owners usually need)

Your ownership structure drives control, tax outcomes and what happens if someone dies or wants out.

Key differences

Feature	Joint Tenants	Tenants in Common
Default for couples	Often yes	Less common
Ownership shares	Equal only	Flexible (e.g. 70/30, 40/30/30)
If one owner dies	Their share automatically goes to survivors	Their share passes via their will/estate
Best for	Couples in long‑term relationship	Friends, family groups, business partners
Selling or changing shares	Less flexible	Easier to adjust stakes, add/remove partners

Most business owners co‑buying with non‑spouses use tenants in common so you can:

Match ownership to who contributed the deposit.
Reflect different income/tax positions.
Leave your share to your preferred beneficiaries.

This is even more critical if you’re co‑buying an investment property or premises with a business partner, not a life partner.

The big risks of co‑buying when you run a business

Co‑buying amplifies several risks that already worry lenders about small business owners.

1. Cashflow shocks and forced sales

Your business income can drop 30–50% in a downturn. APRA expects lenders to build in buffers, but they still rely on you managing shocks.

If one co‑owner can’t keep up:

The other owners must cover the gap or fall into arrears.
The group may be forced to sell at the wrong time.

In our guide on protecting your career from property risk, we explain why ring‑fencing assets and maintaining separate buffers is critical /insights/protect-career-practice-from-property-risks.

2. Cross‑collateralisation and guarantees

Co‑buying can easily lead to:

Cross‑collateralised loans (one loan secured by multiple properties and multiple owners).
Personal guarantees from all co‑owners for related business facilities.

For small business owners, that reduces your flexibility to refinance or restructure during a downturn and can drag your home, investment and business into the same storm.

3. Relationship and strategy drift

Over 5–10 years, lives change:

One person wants to upgrade; another wants to de‑gear.
Tax laws change (for example, current proposals to tighten negative gearing and CGT from 2027 make long‑term planning more important).
Someone’s business takes off; another wants to reduce risk.

Unless your agreement sets out clear exit options and valuation methods, you can end up stuck or in dispute.

How lenders see co‑buyers who are self‑employed

Lenders look at each person’s full risk, not just “your half”. ### Serviceability and buffers Most lenders will: - Treat the whole loan as your commitment when stress‑testing, even if you share it. - Include personally guaranteed business loans and overdrafts as your liabilities. - Apply a 3%+ serviceability buffer above the actual rate. That means if you already have chunky business debt, co‑buying may not increase your practical borrowing power as much as you think. For tips on turning uneven business income into a lender‑friendly story, see /insights/self-employed-rose-bay-chaotic-accounts-into-bankable-story. ###…

Premium insight

The strategy continues below

You've seen the problem and the groundwork — now unlock the exact steps our CPA-certified brokers use, including 4 more sections. Enter your email for instant, free full access.

Free access. No spam — unsubscribe anytime. Your details stay confidential.

Frequently asked questions

It can be, particularly if it’s the only realistic way to secure a home or premises without overstretching your own balance sheet. But it also links your finances to others, so you need strong documents, clear exit plans and proper buffers. If the main reason is simply to push borrowing capacity higher, it’s usually a warning sign to fix income and structure first.

Most business owners co-buying with non-spouses use tenants in common because it allows unequal shares and more flexible estate planning. Joint tenants is more common for couples who want equal ownership and automatic survivorship. Always get legal advice before deciding, as the choice affects control, tax and what happens if one owner dies.

Lenders usually assess each borrower against the full debt, not just their share, and include any personally guaranteed business loans in your commitments. They apply a serviceability buffer of around 3% above the actual rate. This means co-buying doesn’t always increase practical borrowing capacity as much as people expect, especially if your business already carries debt.

Legally, all co-borrowers are jointly and severally liable for the entire loan, so the lender can pursue any of you for missed repayments. Practically, the other owners either cover the shortfall, negotiate a restructure, or agree to sell. That’s why your co-ownership agreement should spell out hardship processes, timeframes and how buyouts or sales will work.

Talk to a CPA-certified broker

Free consultation, plain-English advice tailored to your situation.

All insights