If you run your own business, work as a contractor, or freelance for a living, you’ve probably heard that getting a mortgage is harder when you’re self-employed.
There’s some truth in that. Banks do ask for more paperwork, and the way they calculate your income can come as a real shock if you’re not prepared for it. But harder doesn’t mean impossible. Thousands of self-employed New Zealanders get approved for home loans every year. The difference between a smooth approval and a frustrating decline almost always comes down to preparation.
In this guide, we’ll explain exactly how banks assess self-employed borrowers, what traps to watch out for, and how to set yourself up for the strongest possible application.
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How Banks Calculate Your Income When You’re Self-Employed
This is where most people get caught out. If you’re a PAYE employee, proving your income is straightforward. You’ll submit a few payslips, possibly an employment letter, and give the bank access to your accounts to verify your income, and you’re done. When you’re self-employed, the bank isn’t interested in what you pay yourself. They want to see your taxable profit.
That means even if your business turns over $500,000 a year and you’re drawing $120,000 to live on, the bank’s starting point is the net profit figure on your financial statements, not the money hitting your personal account.
The add-back formula
The good news is that banks don’t just stop at net profit. They’ll add back certain expenses that reduce your taxable income on paper but don’t represent real cash leaving the business. These commonly include:
- Depreciation: If you’ve claimed $15,000 in depreciation on vehicles and equipment, the bank adds that back because it’s an accounting entry, not a cash outflow.
- Interest paid on business loans: Banks calculate loan servicing separately, so interest expenses get added back to your income figure.
- Home office costs: If you claim part of your mortgage interest, rates, and power as a home office expense, banks will typically add those back too.
- Shareholder salary: Any salary you pay yourself as a shareholder of a company is added back and included in the income calculation.
The trap that catches business owners
Here’s where it gets painful. Banks add back interest on business loans, but they don’t add back principal repayments. If your business carries heavy equipment finance or vehicle loans, those principal payments eat directly into the cash flow the bank sees as available for mortgage servicing.
Let’s say you’re a landscaper. Your business generates $200,000 in adjusted profit after add-backs. But you’ve got $80,000 a year in principal repayments on trucks and a digger. The bank sees $120,000 in available income, not $200,000. That gap between what you think your income is and what the bank calculates can be enormous, and it’s the single biggest reason self-employed applications stall.
Two years of financials — the golden rule
Most mainstream banks want to see at least two full years of financial statements. That means two complete sets of annual accounts prepared by your accountant, along with your corresponding tax returns (IR3 or IR4) filed with Inland Revenue.
Some banks will work with one year of financials in certain situations, such as when a borrower has strong first-year results and signed contracts showing future income, or when there’s a co-borrower with solid PAYE income supporting the application. But these are exceptions, and they generally need a broker who knows which bank has an appetite for that kind of deal.
If you’ve been self-employed for less than a year, mainstream banks are very unlikely to approve you based on self-employed income alone. That doesn’t mean you’re out of options (more on that below).
What Documents You’ll Need
Getting your paperwork together early is one of the most important things you can do. Here’s what most banks will ask for:
- Two years of financial statements: Profit and loss, balance sheet, and ideally a set of notes from your accountant.
- Two years of personal and business tax returns: Filed and assessed by IRD, not just draft copies.
- Six months of business bank statements: Banks want to see the actual flow of money through the business, including any seasonal patterns.
- A completed personal statement of position: This lists all your personal assets, liabilities, income, and expenses.
- Evidence of business registration: Your NZBN registration and GST registration.
- Details of any business debts: Including loan agreements, current balances, and repayment schedules for any equipment finance, business loans, or credit facilities.
The cleaner and more organised this paperwork is, the faster your application will move. If your accountant is slow to finalise your annual accounts, that delay can push your mortgage timeline back by months.
The Tax Minimisation Trap
Here’s something your accountant and your mortgage broker might have very different opinions about.
A good accountant will structure your affairs to minimise tax. That means maximising deductions, claiming every legitimate expense, and keeping your taxable income as low as possible. That’s their job, and they’re doing it well.
But remember: the bank uses your taxable profit to determine your borrowing power. The more deductions you claim, the lower your taxable profit, and the less you can borrow.
Let’s say Ravi runs a successful web development business from his home in Wellington. He earns $180,000 a year after business costs. His accountant claims $25,000 in home office expenses, depreciation, and other deductions, bringing his taxable income down to $155,000. That saves Ravi about $8,000 in tax. But it also reduces his borrowing power by roughly $50,000 to $70,000 depending on the bank’s servicing model.
If Ravi is planning to buy a home in the next 12 months, he needs to have a conversation with both his accountant and his mortgage broker well ahead of time. In some cases, it makes sense to claim fewer deductions for a year or two to strengthen the mortgage application. It’s a balancing act, and it’s one you want to get right before you apply, not after.
(NB: This is general information, not financial advice. Talk to your accountant and broker about what’s right for your situation.)
What If You Don’t Have Two Years of Financials?
If you’ve recently gone out on your own and don’t yet have two years of trading history, you’ve still got options, such as a non-bank loan.
Non-bank lenders offer what’s known as alt doc (alternative documentation) lending. Instead of requiring two years of full financial statements, these lenders may accept six months of business bank statements, GST returns, an accountant’s letter confirming your income, or a combination of these.
Pepper Money, for example, is one of several non-bank lenders in New Zealand that offers alt-doc home loans for borrowers who have been self-employed for as little as six months, provided they can show consistent trading activity, GST and NZBN registration, and a reasonable deposit.
The trade-off with non-bank lending is cost. Interest rates are typically higher than what you’d get from a main bank, and there are often establishment fees and legal costs on top. But for many self-employed borrowers, a non-bank loan acts as a stepping stone. You get into the property now, build up your financial history, and then refinance back to a mainstream bank once you have two years of accounts and clean conduct.
Preparing Your Application — A 6-Month Checklist
If you’re planning to buy in the next 6 to 12 months, here’s what to focus on now.
Talk to your accountant about timing. Make sure your annual accounts are up to date and that your tax returns are filed. If your year-end is March, get those accounts finalised as quickly as possible rather than waiting until the following February.
Review your deductions with your mortgage in mind. Have the conversation about whether aggressive tax minimisation is costing you borrowing power. Your accountant and broker should be talking to each other.
Clean up your personal banking. Banks will look at your personal spending alongside your business income. Reduce or clear credit card balances, avoid buy-now-pay-later schemes, and make sure there are no dishonour fees or overdraft breaches on your statements.
Keep your business and personal finances separate. If you’re running personal expenses through the business account, it creates confusion and makes the bank’s job harder. Clean separation makes everything smoother.
Document any large or unusual transactions. If you’ve received a gift for a deposit, sold an asset, or had an unusually good (or bad) trading month, have a clear paper trail and explanation ready.
Talk to a mortgage broker early. Ideally six months before you want to buy. A broker can review your financials, identify any red flags, and tell you exactly what you need to do before submitting an application. That early review can save you months of wasted time.
How a Mortgage Broker Makes a Real Difference
Self-employed lending is one of the areas where a broker adds the most value. Here’s why.
Not all banks treat self-employed income the same way. Some are more conservative with add-backs. Some will only use the lower of your last two years’ income, while others will use an average. Some accept borrowers with one year of trading history; others won’t look at you without two. A broker knows which bank is the best fit for your situation right now, which can mean the difference between approval and decline.
A broker also knows how to present your financials in the strongest possible light. That means identifying every legitimate add-back, structuring the application to highlight the strength of your business, and pre-empting the questions the bank’s credit team will ask.
At OneStop Financial Solutions, we work with self-employed borrowers across New Zealand, including sole traders, contractors, company directors, and partnership structures. We’ve seen the common traps and we know how to help you avoid them. If the mainstream banks aren’t the right fit right now, we also work with a range of non-bank lenders who specialise in self-employed lending.
Get in touch to chat through your situation. There’s no cost for an initial conversation, and we’ll give you a clear picture of where you stand.
Frequently Asked Questions
Who are the private mortgage lenders for self-employed borrowers in NZ?
Non-bank (or private) lenders are often a strong option for self-employed borrowers who don’t meet mainstream bank criteria. The main non-bank lenders currently active in the New Zealand market include Pepper Money, Liberty Financial, Bluestone, Avanti Finance, Basecorp Finance, and Squirrel Money.
Can I get mortgage pre-approval if I’m self-employed?
Self-employed borrowers can get pre-approved for a mortgage in New Zealand. The process is the same as for PAYE employees, but you’ll need more documentation. The key is having your financials up to date before you apply. If your accountant hasn’t finalised your annual accounts yet, that can delay everything. Talk to our lending team early so they can review your documents and identify any gaps before you submit.
What are typical self-employed mortgage interest rates in NZ?
The interest rate you’ll be offered depends on your risk profile, and financials submitted. Interest rates can be anywhere from 1 to 5% higher than mainstream banks. There may also be establishment fees and monthly charges. The goal for most self-employed borrowers is to get into a property now through whichever lender fits, then refinance to a main bank once you have the financial track record to qualify for standard rates.
Can I get a construction loan if I’m self-employed?
Self-employed borrowers can access construction lending in New Zealand, though the requirements are stricter than for a standard home purchase. Banks assess construction loans based on the total cost of the build, the plans, your deposit, income, and the property’s location. You’ll still need to meet the same income verification requirements, and banks may apply tighter servicing buffers because of the added risk a construction project carries. A broker experienced in construction lending can help you match the right lender to your contract type.
Is it harder to get a mortgage as a sole trader vs a company director?
The process is similar, but the way banks calculate your income differs. For sole traders, it’s based on your taxable profit. For company directors, banks typically look at shareholder salary plus any add-backs from the company’s financial statements. Some structures are more complex than others, so getting broker advice early helps.
