Buying your first rental is a different exercise from buying a home to live in. The deposit rules are stricter, the tax treatment matters, and the numbers need to stack up. This 2026 guide covers the essentials for Wellington investors taking their first step.
Using the equity in your own home
Most first-time investors fund the deposit on a rental using equity in their existing home rather than cash. Usable equity is generally the value of your home up to 80% of its worth, less what you still owe. For example, if your home is worth $900,000 and you owe $400,000, then 80% of the value is $720,000, leaving around $320,000 of usable equity to put towards an investment purchase. Releasing equity increases your total borrowing, so the numbers still need to work.
Deposit and LVR rules for investors
Investors face higher deposit requirements than owner-occupiers. As a general benchmark in 2026, you will typically need around a 30% deposit for an existing investment property, because the Reserve Bank limits how much low-deposit lending banks can do to investors. There is an important exception: new builds are exempt from these restrictions, so a brand-new property can often be purchased with a smaller deposit. Debt-to-income limits also apply, capping how much you can borrow relative to your income.
The numbers that matter
Before you fall in love with a property, run the numbers. The two that matter most are rental yield and cashflow. Rental yield is annual rent divided by the purchase price, as a percentage, and it tells you how hard the property works relative to its cost. Cashflow is the rent you receive, less mortgage interest, rates, insurance, maintenance and management. Many rentals run at a shortfall in the early years, which you top up from your own income, so know that figure before you commit. Wellington rents have softened recently, so be realistic about achievable rent rather than relying on optimistic figures.
Tax in 2026: what changed
Two big settings have reset, and a lot of older advice online is now wrong. Interest deductibility is fully restored: from 1 April 2025, interest on loans for residential investment property is 100% deductible again, though rental losses are still ring-fenced, so a loss generally cannot be offset against your salary or wages. The brightline test is back to two years: for properties bought from 1 July 2024, you may pay tax on the gain if you sell within two years of the title transferring to you, while selling after two years usually means the brightline test does not apply (though other land rules can still catch certain sales). On depreciation, you cannot claim depreciation on the building itself (residential buildings are set at 0%), but you can generally claim it on chattels like carpet, appliances and heat pumps.
Ownership structures
How you own a rental affects your tax, your liability and your future flexibility. Common options include buying in your personal name, a look-through company (LTC), a company, or a trust. Each has trade-offs, and the right choice depends on your wider situation, so this is a decision to make with your accountant before you buy, not after.
How a broker helps investors
Investment lending is where structure really counts. We help you work out your usable equity, structure the lending so your own home and the rental are sensibly separated, find a lender whose investor policy fits, and model the borrowing so you go in with eyes open. We will also flag where you need your accountant or solicitor involved, so the whole plan holds together.