Refinancing isn't automatic approval just because you're already making payments. Lenders assess your current situation as if you're applying fresh, which means meeting specific eligibility criteria that might have changed since you first borrowed.
Most refinance applications hit delays because borrowers assume their existing loan history guarantees approval elsewhere. It doesn't. Your income, expenses, property value, and credit position all get reassessed, and each lender applies their own criteria to determine whether you qualify for a refinance home loan.
What lenders verify during a refinance application
Lenders check your current income, employment stability, credit history, property valuation, and existing debts. They're confirming you can service the new loan under their assessment policy, not simply transferring your existing arrangement.
Consider a borrower who purchased five years ago with a 10% deposit and stable employment. Since then, their income increased, but they also accumulated a car loan and a small personal loan for renovations. When refinancing to access equity, the lender recalculates their borrowing capacity based on today's income, today's debts, and today's interest rate buffers. Even though the property increased in value, the additional debts reduced how much they could borrow. The application required clearing the personal loan first, which delayed settlement by three weeks.
Income and employment checks don't skip existing borrowers
You'll need recent payslips, tax returns if self-employed, and confirmation of employment stability. Lenders want proof your income supports the loan amount you're requesting, even if you've been paying your current mortgage without issue for years.
Self-employed borrowers often face stricter requirements during a refinance application. Two years of tax returns and accountant-prepared financials are standard. If your income fluctuated or you changed business structure recently, some lenders may decline or offer reduced borrowing capacity. In our experience, borrowers switching from PAYG to self-employment within the past two years often need to wait longer or provide additional documentation to meet eligibility thresholds.
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Property valuation can limit your options
Your property gets revalued as part of the refinance process. If the valuation comes in lower than expected, your loan-to-value ratio increases, which can affect your eligibility or require lender's mortgage insurance.
Suburbs where property values plateaued or softened since your original purchase may present challenges. A property bought at the peak might now be valued lower, reducing available equity and potentially disqualifying you from certain loan products. Desktop valuations, which many lenders use to speed up approvals, sometimes undervalue properties compared to physical inspections. If you believe the valuation is inaccurate, you can request a review or provide recent comparable sales, but this extends your timeline.
Credit history matters even with clean repayment records
Lenders review your credit file for recent enquiries, defaults, late payments, and overall credit behaviour. Multiple credit applications in a short period can reduce your eligibility, as can any defaults or missed payments on other accounts.
A single missed phone bill payment that defaulted can remain on your credit file for five years. Even if your mortgage repayments are spotless, that default may push some lenders to decline your application or increase the rate they offer. Checking your credit file before applying lets you address issues or choose lenders more likely to approve despite older blemishes.
Debt consolidation changes your serviceability calculation
If you're refinancing to consolidate debts like credit cards or personal loans into your mortgage, lenders assess whether you can service the higher loan amount. They also consider why you accumulated the debt and whether consolidating improves or masks financial stress.
Consolidating $30,000 in credit card debt into your mortgage reduces your monthly repayments, but lenders calculate serviceability using the new total loan amount. If your income hasn't increased or your expenses are high, you might not meet their criteria. Some lenders also require you to close consolidated credit accounts to prevent re-accumulation, which affects your application if you're unwilling to do so.
Equity access requires specific loan-to-value ratios
Accessing equity for investment, renovations, or other purposes depends on how much usable equity you hold and the loan-to-value ratio the lender permits. Most lenders cap refinancing at 80% of the property value without requiring mortgage insurance.
If you want to access equity but your property valuation leaves you above 80% loan-to-value, you'll either need to accept a smaller drawdown or pay lender's mortgage insurance. In a scenario like this, a borrower with $600,000 owing on a property valued at $800,000 has $160,000 in equity at 80% loan-to-value. If they want to access $100,000, their new loan becomes $700,000, which is 87.5% loan-to-value and triggers mortgage insurance. Adjusting the drawdown to $80,000 keeps them at the 80% threshold and avoids the added cost.
Fixed rate periods ending require action before expiry
If your fixed rate period is ending, refinancing beforehand can prevent rolling onto a higher variable rate. Applications take two to six weeks, so starting early ensures you transition smoothly without paying inflated interest in the interim.
We regularly see borrowers wait until their fixed term expires before starting the refinance process. By the time they settle, they've already paid several months at the revert rate, which can be substantially higher than available fixed or variable options. Applying at least six weeks before expiry gives you time to compare offers, complete documentation, and settle before the rate change hits.
Lender policy differences affect who approves your application
Not all lenders assess the same way. Some have tighter serviceability buffers, others exclude certain income types, and a few specialise in self-employed or investment borrowers. Choosing the right lender upfront avoids wasted applications and credit enquiries.
A home loan health check compares your current position against what different lenders offer and require. It identifies which lenders suit your income type, debt level, and refinancing goal before you apply. This approach reduces declines and positions you with lenders more likely to approve at competitive rates.
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