Switch vs Renegotiate: SMSF Loan Refinance Options

Refinancing an SMSF loan means either switching to a new lender or renegotiating terms with your current one.

The distinction matters under the Limited Recourse Borrowing Arrangement (LRBA) rules that commenced 10 August 2026. A compliant residential LRBA established before that date can be refinanced to another lender without triggering the post-commencement restrictions, but only if the refinanced arrangement maintains the original asset and structure. A rate renegotiation with your existing lender typically involves less documentation and faster turnaround, but may not deliver the margin reduction you would get by moving to a new lender. For commercial LRBAs, the refinance path remains unchanged, though compliance with arm's length terms under PCG 2016/5 continues to apply regardless of whether you switch or stay.

Switching Lenders Under the New LRBA Rules

Switching to a new lender involves discharging your current loan and establishing a new contract, but the ATO treats this as a refinance of an existing arrangement provided the asset and beneficiaries remain unchanged. If your SMSF holds a residential property under an LRBA established before 10 August 2026, you can refinance that SMSF loan to a new lender without the arrangement being subject to the prohibition on new residential LRBAs. The critical requirement is that the new loan relates to the same single acquirable asset and maintains the limited recourse character of the original arrangement.

Consider a fund that acquired a two-bedroom unit in Footscray in early 2025 under a compliant LRBA. The fixed rate expires in late 2026, reverting to a margin of 2.10% over the reference rate. Switching to a new lender offering a margin of 1.45% would reduce ongoing interest costs, and the ATO's position confirms this refinance does not constitute a new residential LRBA subject to the post-commencement rules. The same asset, the same fund beneficiaries, and the same limited recourse structure continue through the new loan contract.

Renegotiating With Your Current Lender

A rate renegotiation with your existing lender does not involve a new loan contract. You retain the same loan account, the same security, and the same lender. The lender agrees to a revised interest rate or margin, typically documented through a variation or amendment to the existing loan terms. This approach avoids application fees, valuation costs, and settlement expenses associated with switching lenders, and settlement typically occurs within days rather than weeks.

The downside is leverage. Lenders are less inclined to reduce margins for existing clients than they are to win new business. In our experience, a rate renegotiation on an SMSF loan might deliver a margin reduction of 0.20% to 0.40%, whereas switching to a new lender could deliver 0.60% to 0.80% or more, depending on the loan size and property type. For a loan balance of $400,000, the difference between a 0.30% reduction and a 0.70% reduction is approximately $1,600 per year in interest costs.

Commercial LRBA Refinancing Remains Unchanged

Refinancing a commercial LRBA is not affected by the residential prohibition introduced in 2026. Whether you switch lenders or renegotiate, the compliance requirements remain consistent with the original LRBA framework. The refinanced loan must relate to the same single acquirable asset, maintain limited recourse to that asset only, and meet arm's length terms consistent with PCG 2016/5. The ATO publishes updated safe harbour interest rates annually, and income from an arrangement that does not meet those arm's length terms may be assessed as non-arm's length income and taxed at 45%.

For SMSF commercial property loans, switching lenders can deliver improved loan terms, access to offset accounts, or the ability to exit a fixed rate before reversion. A fund holding a warehouse in Dandenong with a loan balance of $850,000 might refinance to access a genuine offset account, allowing surplus fund cash to reduce interest without creating a secondary borrowing or charge over fund assets. The offset account must be offered by an authorised deposit-taking institution and structured so that the lender's recourse remains limited to the commercial property only.

What Ends an Existing Arrangement

The ATO considers a significant change to the terms or conditions of an LRBA to end the existing arrangement and begin a new one. If the new arrangement is entered into on or after 10 August 2026 and involves residential property, it cannot proceed. Refinancing that is inconsistent with the original arrangement, borrowing to acquire an asset not contemplated under the original LRBA, or changes to the ultimate beneficiaries of the arrangement are circumstances that may end the existing arrangement.

A residential LRBA established in 2024 to acquire a townhouse in Werribee can be refinanced to a new lender in 2027 without issue, provided the refinanced loan relates to the same townhouse, the fund beneficiaries remain the same, and the limited recourse terms are maintained. However, if the trustees attempted to vary the loan to include a second property or to change the beneficial ownership structure, the ATO would treat that as a new arrangement subject to the post-commencement prohibition.

Offset Accounts and Limited Recourse Compliance

Genuine offset accounts are not treated as a borrowing or a charge over fund assets under existing ATO guidance, but the lender's recourse in the event of a default must remain limited to the asset acquired under the LRBA. If the offset account is secured by a general charge over other SMSF assets, or if the lender has recourse beyond the single acquirable asset, the arrangement may not satisfy the limited recourse requirement. When switching lenders or renegotiating, confirm that any offset account offered does not compromise the limited recourse character of the LRBA.

A related party may provide a personal guarantee to the lender, but their recourse must also be limited to the asset under the arrangement and not any other SMSF assets. This applies whether you are switching to a new lender or renegotiating with your current one.

When Switching Delivers the Strongest Outcome

Switching lenders typically delivers the strongest financial outcome when the margin reduction exceeds the cost of switching by a sufficient amount to justify the documentation and settlement process. For SMSF loans, application fees, valuation costs, legal fees, and discharge fees can total $2,500 to $4,500 depending on the property type and loan size. A margin reduction of 0.70% on a loan balance of $500,000 would save approximately $3,500 per year in interest, recovering the switching costs within the first 12 to 18 months and delivering ongoing savings for the remaining loan term.

Renegotiating with your current lender is worth pursuing first, particularly if your fixed rate is not yet expired or if your fund has multiple properties and consolidating with a single lender offers operational advantages. If the renegotiation does not deliver a material margin reduction, switching to a new lender becomes the more viable option. For residential SMSF loans established before 10 August 2026, the ability to switch lenders without triggering the new residential prohibition gives Victorian trustees continued access to competitive pricing and product features.

Call one of our team or book an appointment at a time that works for you to discuss whether switching lenders or renegotiating with your current provider delivers the stronger outcome for your fund.

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