Refinancing from Westpac: what to check before your fixed rate ends

Why people look at switching from Westpac

Reasons for reviewing lending with Westpac are mostly timing and structure. A fixed term is ending, the rollover rate may not match what is advertised elsewhere, or the way the loans are set up has stopped suiting you. A review does not commit you to anything. It just replaces the default of rolling over with a decision you have actually made.

• How the loans are secured

  When a home and a rental sit under the same lender, a property can end up backing the other. A review is a chance to see whether that structure is still what you want, or whether the loans should stand on their own.

• Investor rates and criteria

  Lenders treat investment lending differently from lending on your own home. Advertised 1-year fixed rates at the big banks sat between 4.95% and 5.19%, as at September 2026, before the 28 October OCR decision, but these are indicative ranges for borrowers with plenty of equity, so investment rates may look different.

• How interest is handled

  Some investors want an interest-only period on the rental, with principal repayments on the home. Whether a new lender offers that, and for how long, is something to ask early.

• Cashback against more complexity

  Typical cashback has been around 0.8% of the loan (Canstar, checked 1 October 2026). With a number of loans and properties involved, the extra legal work and valuations deserve a place in the sums.

What switching involves

Moving a home loan away from Westpac is a handful of separate steps, each with its own cost or deadline. The short version:

• Break fees, if you leave mid-term. Leaving a fixed rate early can cost a break fee. Moving at the end of the term normally does not.
• Cashback clawback, if you took cashback. Leaving inside the clawback period can mean paying cashback back. The clawback period is set in your cashback letter and often runs for several years. Typical new cashback has been around 0.8% of the loan (Canstar, checked 1 October 2026).
• Legal fees. There are legal fees for the discharge and the new mortgage, and some lenders contribute to them for a straightforward switch.
• Valuation, discharge and timing. The new lender may want a valuation, Westpac may charge a discharge fee, and the whole job takes a few weeks.

The detail is in our guide to refinancing a home loan in NZ, and in our posts on how mortgage break fees are worked out and how cashback and clawback work. Indicative rates are on our home loan rates page.

A home and a rental, in the order things get asked

Say someone has the family home and a rental property, with the lending arranged across both. Structure matters more here than for a lone loan. This is how the questions might arrive, in the order a new lender is likely to raise them. It is an example, and your own arrangements will differ.

1. 1. Start with what secures what

   Write down each loan and which property backs it. Check whether any property is offered as security for more than its own loan. This shapes everything that follows, including whether you can move just a part.

2. 2. Then the rental income

   Gather your tenancy agreements, recent rent statements and details of rates, insurance and maintenance. A lender will test whether the rental can carry its own costs, and will apply its own allowance for expenses.

3. 3. Then the valuations

   Each property usually needs its own valuation, and the figures set how much equity sits behind each loan. Rental properties can be valued differently from homes, so the results are worth seeing before you commit.

4. 4. Then how the new lending is shaped

   Decide whether you want the new loans cross-secured or separate, and whether the rental stays interest-only for a time. Different lenders say yes to different shapes, so this is the stage where the choice of lender can narrow.

5. 5. Finally the discharge

   A lawyer arranges for Westpac to release its mortgages as the new loans settle. When more than a home is involved, the order in which they are discharged and registered matters, so nothing is left unsecured or secured twice.

Staying with Westpac is also an option

A review does not have to end in a move. Staying put is often a good result once the costs are netted off, and there are a few ways to do it.

• Refix both loans with Westpac, if the rollover rates look reasonable once you have compared them. It keeps the structure as it is.
• Ask your bank whether the loans can be separated, if you want the security untangled, while staying with the bank.
• Move only the rental, or only the home, if the lending can be separated. Ask what the legal work would involve before assuming it is worthwhile.

For an investor, keeping some lending where it is can be a sensible part of the plan, and it may spread your renewal dates too. It is worth asking what can be separated before assuming it is all or nothing.

What a broker does in a Westpac switch

Online Home Loans is a referral service, so we do not do any of this ourselves. The mortgage broker we refer you to deals with you directly, and in a switch from Westpac they typically do the following.

• Maps what secures what, and checks how a new lender would treat each part.
• Tests the rental figures against different lenders' allowances, so the numbers are not a surprise.
• Plans the discharge across all the properties so none is left exposed at settlement.
• Asks Westpac for exit figures for each loan, and shows the costs side by side with the new setup.

The more moving parts, the more the sequencing matters. An investor structure rarely works as a copy-and-paste job, and a broker can say what is likely to be asked and when.

What to have ready

A few documents make the first conversation quicker. You do not need all of them to enquire, but the more you have to hand, the faster the numbers come together.

• Your latest home loan statement, showing the balance, the rate and the date the fixed term ends.
• Your original loan documents, and any cashback letter with its clawback terms.
• Recent payslips, or tax returns and financial statements if you work for yourself.
• A rough idea of what your property is worth, such as a recent rating valuation.
• Tenancy agreements and recent rent statements for the rental property.
• Rates, insurance and maintenance costs for the rental, plus a note of how each loan is secured.

Common questions

Can I move just my rental loan from Westpac?

It depends on how your lending is secured. Sometimes loans can be separated, and sometimes a property backs another loan, which makes a partial move harder. Your loan documents and a broker can confirm what is possible.

Do investment loans switch the same way as a home loan?

The steps are similar, but lenders treat investment lending differently, so a new lender may ask for more detail, apply different limits and assess rental income in its own way.

Will I need new valuations on every property?

Usually, for any property that will secure new lending. The valuations set the equity behind each loan, so they can change which lenders and rates are open to you.

Will I pay a break fee if I leave Westpac mid-term?

Possibly. A break fee applies when you leave a fixed rate early, and it has to be a reasonable estimate of the lender's loss. Ask Westpac for a written figure for each fixed loan, calculated for your settlement date.

Who would I deal with after I enquire?

Online Home Loans is a referral service. We pass your details on once to a mortgage broker, who talks to you directly. We do not give advice, set rates or arrange lending.

Related reading

• Refinancing your home loan in NZ
• NZ home loan rates explained
• Mortgage break fees in NZ
• Home loan cashback and clawback in NZ
• Refinancing from Kiwibank
• Refinancing from ANZ