Family Loan Agreements: The Pros and Cons Explained

A family loan agreement lets you borrow part or all of your deposit from a relative instead of saving the full amount yourself.

Most lenders recognise family loans if they're properly documented, which means you can purchase sooner than you could by saving alone. The agreement needs to include loan terms, repayment expectations, and signatures from both parties. Without that structure, lenders treat the funds as gifted money or non-genuine savings, which affects how much you can borrow and whether you'll pay Lenders Mortgage Insurance (LMI).

How Lenders Assess Family Loan Agreements

Lenders add the repayment obligation from a family loan to your existing debts when calculating borrowing capacity. If you're borrowing $30,000 from a parent with a written agreement to repay $500 per month, that $500 reduces the amount a lender will approve for your home loan. If the agreement specifies interest-free repayments over five years, the monthly commitment is clear. If it's open-ended or informal, some lenders won't assess it at all and others will apply a notional repayment based on standard personal loan rates.

The structure of the agreement determines whether it helps or restricts you. Consider a scenario where a New Farm buyer borrows $50,000 from family to reach a 10% deposit on an apartment near Merthyr Village. If the agreement specifies no repayments for two years, most lenders will still factor in a nominal monthly repayment when assessing your application. That reduces your borrowing power by around $80,000 to $100,000 depending on your income. If the same agreement showed repayments starting immediately at $400 per month, your borrowing capacity drops, but the lender has certainty about the commitment.

When a Gift Works Better Than a Loan

If your family member doesn't expect repayment, a signed gift letter removes the liability from your application entirely. The letter needs to state the amount, confirm it's a gift with no expectation of repayment, and be signed by the person providing the funds. Lenders accept this without reducing your borrowing capacity because there's no debt to service.

In our experience, buyers assume a loan agreement looks more professional, but if repayment isn't genuinely required, it just adds a liability. A $40,000 gift has no impact on what you can borrow. A $40,000 loan with $300 monthly repayments reduces your maximum loan amount by roughly $60,000 to $70,000. That difference matters when you're purchasing in New Farm, where even older-style units in the Moray Street precinct require substantial borrowing.

Documentation Lenders Require for Family Loans

A family loan agreement needs to include the loan amount, interest rate or confirmation it's interest-free, repayment terms with start and end dates, and signatures from both parties. If the agreement is vague about repayment timing or doesn't specify an end date, lenders either decline it or apply their own assumptions, which usually work against you.

Some lenders also want to see evidence the family member can afford to lend the amount without financial strain. That might include recent bank statements or a statutory declaration confirming the funds are unencumbered. If the relative is retired and drawing down savings, the lender may ask for super statements or evidence the withdrawal won't affect their financial position. The goal is to confirm the arrangement won't be reversed or disputed during settlement.

Family Loans and Lenders Mortgage Insurance

Whether you pay LMI depends on your loan to value ratio (LVR), and family loans affect that calculation differently depending on how they're structured. If you're borrowing from family to increase your deposit from 5% to 10%, you still have a 90% LVR on the property itself, and you'll pay LMI. The family loan doesn't reduce the lender's risk because you still owe the money elsewhere.

If the family loan is structured as a second mortgage secured against the property, some lenders treat it as part of your total borrowing, which increases the LVR and the LMI premium. Other lenders won't lend at all if there's a second mortgage involved. The only scenario where a family loan reduces LMI is if it's genuinely gifted and documented as such, or if the amount is large enough to bring your deposit to 20% or more after accounting for stamp duty and other upfront costs.

The Impact on Interest Rate Discounts

Lenders offer different home loan rates depending on your LVR, and family loans can push you into a higher rate tier even if your deposit looks adequate on paper. If you're purchasing with a 15% cash deposit plus a 5% family loan, your LVR is still 85%, but some lenders will apply the rate discount for 80% LVR because your equity position is stronger. Others won't. The variation between lenders is significant, and it's worth comparing home loan options before you commit to the structure.

In a scenario where a New Farm buyer is purchasing a terrace near the riverside parks and using a $60,000 family loan alongside $40,000 in savings, the choice of lender determines whether they access the lowest rates or pay an additional 0.20% to 0.40% on a variable rate. That difference compounds over the life of the loan, so the structure of the family agreement directly affects long-term cost.

Repayment Terms That Lenders Accept

Lenders prefer family loan agreements with fixed monthly repayments over a defined period. A five-year term with equal monthly payments is straightforward to assess. A ten-year interest-only arrangement followed by principal repayments is more complex but still workable if it's clearly documented. What lenders struggle with is open-ended agreements that specify repayment "when able" or "within a reasonable timeframe."

If your family member is genuinely flexible about repayment, structure the agreement with a long term and low monthly repayments rather than leaving it vague. A $50,000 loan repaid over ten years at $420 per month is easier for a lender to assess than the same amount with no defined schedule. The monthly commitment is lower, your borrowing capacity is higher, and the lender has certainty about the obligation.

Comparing Family Loans to Guarantor Arrangements

A family guarantee is a different structure where a relative uses their own property as security without lending you cash. That arrangement lets you borrow up to 100% of the purchase price without paying LMI, and it doesn't reduce your borrowing capacity because there's no separate debt to service. The guarantor's property secures the portion of the loan above 80% LVR, and once you build equity by paying down the loan or through property growth, the guarantee can be removed.

For New Farm buyers with family members who own property outright or with substantial equity, a guarantor arrangement often delivers a stronger outcome than a family loan. You avoid LMI, access better interest rate discounts, and retain full borrowing capacity. If you're considering either option, it's worth running both scenarios through a loan repayment calculator and comparing the long-term cost.

Call one of our team or book an appointment at a time that works for you. We'll review your situation, structure the documentation lenders require, and confirm which approach delivers the outcome you're working towards.

Frequently Asked Questions