Why Should You Refinance Multiple Properties Together?

Why Refinancing Multiple Properties Often Saves More Than Refinancing One

Refinancing several properties at once typically delivers lower rates, reduced lender fees, and improved loan features compared to moving one property at a time. When you consolidate multiple loans with a single lender, you gain negotiating power based on the total debt you're bringing across, which can mean discounted rates and waived application fees that wouldn't be available for a standalone loan.

Consider an investor who owns three properties with loans spread across different lenders. One loan sits at 6.8%, another at 6.5%, and the third at 6.3%. The highest rate loan has no offset account, the middle loan charges a monthly fee, and the lowest rate loan restricts extra repayments. By refinancing all three properties to one lender at a negotiated rate of 6.1% with full offset access on each loan, the investor reduces their monthly interest bill and gains flexibility to manage cash flow across the portfolio. The savings on interest alone can amount to several thousand dollars annually, depending on the loan amounts involved.

When Does It Make Sense to Refinance Multiple Properties?

Refinancing makes sense when the interest you'll save or the features you'll gain outweigh the costs of switching lenders. If at least one of your properties is on a rate that's 0.4% or more above what's currently available, or if you're missing features like offset accounts or the ability to access equity, refinancing is worth reviewing.

Another trigger is when a fixed rate period is ending on one or more properties. If you're about to revert to a variable rate that's significantly higher than current market rates, refinancing all your loans together lets you lock in competitive pricing across your portfolio rather than accepting whatever revert rate your existing lender offers. In our experience, investors who wait until after their fixed rate expires often miss out on weeks or months of lower rates while they scramble to compare options.

Costs to Factor In Before You Refinance

Switching lenders involves discharge fees from your current lender, application fees with the new lender, and potential valuation costs for each property. Discharge fees typically range from $150 to $400 per loan, and valuation fees can sit between $200 and $300 per property depending on location and property type. Some lenders waive application fees when you're refinancing a portfolio, but this isn't automatic.

Calculate the total cost of moving all your loans and compare that to the interest savings over the next two to three years. If you're refinancing three properties and the combined cost is $3,000, but you'll save $5,000 annually on interest, the move pays for itself in under eight months. A loan health check can help clarify whether your current rates and features justify the cost of switching.

How Lenders Assess Multiple Property Refinance Applications

Lenders assess your borrowing capacity based on the rental income from investment properties and your personal income, then apply a serviceability buffer to ensure you can manage repayments if rates rise. When you're refinancing multiple properties, the lender will review the rental income for each property, deduct any shortfall where the rent doesn't cover the mortgage, and factor that into your overall serviceability.

If one or two properties have strong rental yields and another runs at a slight loss, the lender looks at the net position across the portfolio. Lenders typically use 80% of the rental income in their calculations to account for vacancy periods and maintenance costs. If your rental income and personal income combined don't meet the serviceability threshold, the lender may decline the application or approve a lower loan amount than you're seeking. Presenting a clear picture of your income, expenses, and rental returns upfront makes the refinance application smoother.

Why Cross-Collateralisation Usually Isn't the Answer

Cross-collateralisation means using multiple properties as security for a single loan or linking loans together so the lender holds security over all properties at once. Some lenders suggest this as a way to access higher borrowing amounts or avoid lenders mortgage insurance, but it limits your flexibility down the track.

If you want to sell one property, you'll need the lender's permission to release it from the security pool, and they may require you to pay down debt or revalue the remaining properties. If you want to refinance one property to another lender later, you'll face the same hurdle. Keeping each property on a standalone loan within the same lender gives you portfolio pricing and features without tying your hands when you want to make changes. We regularly see investors who cross-collateralised years ago and now find themselves stuck when they want to restructure.

Structuring Offset Accounts Across Multiple Loans

Offset accounts reduce the interest you pay by offsetting your savings balance against your loan balance. If you have $30,000 sitting in an offset account linked to a $450,000 loan, you only pay interest on $420,000. When you're refinancing multiple properties, you can link a single offset account to multiple loans or set up separate offset accounts for each property, depending on how you manage your cash flow.

If you're building a cash buffer for maintenance or future deposits, a single offset account linked to your highest balance loan typically delivers the most interest savings. If you prefer to track income and expenses separately for each property, individual offset accounts give you clearer visibility. Some lenders let you split the offset balance proportionally across multiple loans, which can work well if you want to reduce interest evenly across the portfolio. Check whether your new lender charges monthly fees for additional offset accounts, as this can erode some of the interest savings.

Accessing Equity When You Refinance Multiple Properties

Refinancing gives you an opportunity to access equity built up across your properties without selling any of them. Equity is the difference between what each property is worth and what you owe on the loan. If you own a property valued at $700,000 with a $400,000 loan, you have $300,000 in equity. Lenders typically let you borrow up to 80% of the property's value without paying lenders mortgage insurance, which in this case would be $560,000. After repaying the existing $400,000 loan, you could access up to $160,000 in usable equity.

When you're refinancing multiple properties, you can access equity from one or more properties and use it for a deposit on another investment, renovations, or debt consolidation. The equity you release gets added to your loan balance, so your repayments increase accordingly. If you're planning to use the equity for an investment loan deposit, the interest on that portion of the loan is typically tax-deductible, but speak with your accountant to confirm how the structure affects your tax position.

How Long the Refinance Process Takes for Multiple Properties

Refinancing a single property usually takes three to five weeks from application to settlement. When you're refinancing multiple properties, the timeline extends slightly because the lender needs to value each property, assess your serviceability across the portfolio, and prepare separate loan documents for each security. Expect the process to take five to seven weeks in most cases.

The timeline can stretch longer if any valuations come back lower than expected, if the lender requests additional documentation, or if there are delays with your current lender issuing discharge forms. Starting the refinance process at least two months before a fixed rate expires gives you buffer to handle any delays without rolling onto a higher revert rate. Submitting complete documentation upfront, including recent payslips, tax returns, rental statements, and current loan statements for each property, keeps things moving.

Should You Keep All Loans with One Lender or Split Them?

Keeping all your loans with one lender simplifies your admin, gives you portfolio pricing, and makes it quicker to access equity or adjust loan features in the future. A single point of contact means fewer phone calls and less paperwork when you need to make changes. However, if one lender can't offer competitive rates across all property types or loan amounts, splitting your portfolio between two lenders might deliver lower overall costs.

Some lenders offer sharper pricing on owner-occupied loans than investment loans, or vice versa. If you're refinancing a mix of property types, compare the total interest cost across all loans rather than focusing on the rate for a single property. In some cases, moving two properties to one lender and one property to another lender results in lower combined interest than keeping all three with the same lender. The trade-off is slightly more admin, but the savings can justify it if the rate difference is meaningful.

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