Mortgage Top-Ups: When and How to Access Extra Funds

Equity is the difference between the lender-accepted property value and secured lending. Paying down principal can increase equity, while the property value can rise or fall. A top-up increases the secured debt and is not an automatic entitlement to the calculated difference.

Lenders offer top-ups for purposes such as renovations or other major spending, but the loan purpose, affordability, security risk, fees, rate and term all affect the result.

How Much Can You Borrow?

The amount available depends on the lender-accepted property value, existing secured debt, loan purpose, affordability, the lender's credit criteria and any applicable LVR or DTI restrictions. ASB says an owner-occupier will usually need more than 20% equity for its top-up, but lower-equity applications may be referred for credit assessment; this is not a market-wide approval rule.

• Current property value: $800,000
• Current mortgage balance: $450,000
• Illustrative 80% LVR amount: $640,000
• Arithmetic difference before lender assessment: $640,000 - $450,000 = $190,000

The lender decides which property value and valuation method it will accept. BNZ says major-renovation applications may require a new registered valuation that it orders and the borrower may need to help pay for. A value estimate or the arithmetic above does not establish an approved top-up amount.

The Application Process

For additional consumer lending, the lender must make reasonable inquiries and be satisfied the credit is suitable and repayments are likely to be affordable without substantial hardship.

Information requested varies. It may include:

• Evidence of income and, where relevant, self-employed income
• Information or evidence about expenses
• Existing debts and financial commitments
• The amount requested and purpose of the lending
• Renovation plans, consents, contracts or a valuation if the lender requires them

The lender must be satisfied that required repayments are likely to be affordable without substantial hardship. The inquiries, assumptions and credit criteria used vary, and apparent equity does not guarantee approval.

Common Uses for Mortgage Top-Ups

Examples of purposes lenders may consider include:

• Home renovations, without assuming the work will increase value by its cost
• Debt consolidation, after comparing the new term, total cost and security risk
• Other major expenses accepted under the lender's policy

• Discretionary spending: a long secured term can materially increase total cost
• Investments: losses do not remove the secured repayment obligation
• Non-urgent spending: compare saving first with the full borrowing cost and lost access to cash

Debt Consolidation: Compare the Full Cost

A top-up may replace unsecured debt with a lower stated rate, but a lower required payment can reflect a longer term. It also converts the amount into debt secured against the home.

If short-term debt is spread across a much longer home-loan term, the total interest can be higher even at a lower rate. Compare the payment schedule and total amount repayable rather than the rate or monthly payment alone.

Ask whether the lender can structure the additional borrowing as a separate portion and obtain the rate, term, repayment flexibility, fees and total amount repayable in writing. Extra repayments may be restricted or charged on fixed-rate lending.

Costs to Consider

A mortgage top-up is not free money. Beyond the interest on the additional borrowing, you may face:

• Application or establishment fees: Some lenders charge fees for processing top-up applications
• Valuation costs: the lender decides whether one is required and who orders it; obtain the current charge
• Legal fees: Changes to your mortgage documentation may incur legal costs
• Break fees: If you restructure existing fixed loans as part of the top-up, break fees may apply

Obtain all fees and the total amount repayable in writing. Do not assume a fixed nationwide top-up cost.

Alternatives to Consider

Compare a top-up with available alternatives, using written rates, fees, terms, security and total cost:

Revolving credit: existing available credit may be accessible under its contract, but limit changes require lender agreement. It remains secured lending, and rate, fees and repayment discipline are product-specific.

Personal loan: may leave the home outside that loan's security, but rate, fees, term and total amount repayable must be compared. Approval and repayment pace depend on the contract.

Savings: using savings avoids new borrowing interest, but compare the effect on emergency liquidity and the amount that would otherwise need to be borrowed.

Making the Decision

A top-up may have a lower stated rate than unsecured credit, but it is still new secured borrowing. Application effort, approval, rate, fees and documentation are lender-specific.

The home remains security for the increased debt. The term may be shorter or longer than the existing loan, so compare the actual payment schedule, total interest and consequences if repayments become difficult.

Before agreeing, review the purpose, alternatives, written disclosure, total amount repayable, repayment changes, security and affordability under changed circumstances. Approval does not establish that a top-up is right for a particular person; personalised financial advice may be appropriate.