RENTAL PROPERTY: WHAT RECORDS DO YOU NEED TO KEEP?

Rental property records NZ landlords need to keep come up in almost every conversation we have with a new client. This typically happens right after they’ve had a scare e.g. a missed deduction or an unexpected question from Inland Revenue. Good records aren’t just a compliance chore. They’re the difference between claiming everything you’re legitimately entitled to and quietly overpaying tax every single year you own the property. This guide sets out exactly what to keep, how long to keep it, and the traps that catch landlords who wing it.

30-Second Read

• Keep records for the 12 months to 31 March each year: rent received, insurance, rates, maintenance, legal fees and any property improvements, with detailed invoices.
• Inland Revenue requires most tax records to be kept for at least 7 years after the end of the income year they relate to. Property purchase and improvement records should be kept for as long as you own the property, plus 7 years after you sell.
• Get a proper chattels valuation done, not just a general property valuation — it’s usually the single biggest factor in what depreciation you can claim.
• Download bank statements in CSV format and keep every loan and transactional account tied to the property, not just the main mortgage.
• Self-managing landlords can claim a percentage of costs on their own home; those using a property manager should keep a more conservative home office claim.

We work through what to keep for the rental itself, home office costs, loan records, two worked examples, and a checklist you can use every 31 March.

 

Why Record-Keeping Matters More Than Ever

Inland Revenue has significantly increased its scrutiny of residential property investors in recent years. This includes cross-referencing land transfer data, bank information and third-party reporting to identify landlords whose returns don’t match their actual property activity. (We covered this shift in detail in Inland Revenue Tax Audits: Why Property Investors Need Better Records Than Ever.)

Good records do two jobs at once:

First, they let you claim every deduction you’re entitled to. A surprising number of landlords under-claim simply because they didn’t keep the receipt or didn’t realise an item was deductible.

Second, they protect you if Inland Revenue ever reviews your return. A well-organised set of records turns a stressful review into a straightforward one; a shoebox of unsorted receipts turns it into a drawn-out, expensive exercise.

The stakes have risen alongside the complexity of the rules themselves. Interest deductibility rules changed three times in as many years before full deductibility was restored in April 2025. The bright-line period shortened from ten years to two in mid-2024. GST marketplace rules for short-stay accommodation arrived in April 2024. Each of these changes affects what you can claim and how, and each one makes a specific, dated record more valuable than it used to be. You can’t retroactively prove what portion of a loan related to the rental property, or when a renovation actually happened, if you didn’t keep the paperwork at the time.

How Long You Need to Keep Records

Under the Tax Administration Act, Inland Revenue requires most tax records to be kept for at least 7 years(opens in new tab) after the end of the income year to which they relate. That clock resets for different types of records:

• Ongoing rental income and expenses — 7 years from the end of the relevant income year.
• Purchase and improvement records — keep these for as long as you own the property. Why? They establish your cost base for depreciation and any eventual bright-line calculation, plus a further 7 years after you sell.
• Chattels valuations and depreciation schedules — keep the full report for as long as you own the property. As above, it underpins every year’s depreciation claim and the eventual clawback calculation on sale.

Records can be digital or physical, but Inland Revenue expects electronic records to remain complete, legible and readily accessible for the full retention period. So that means that a folder of scanned receipts that becomes unreadable in five years’ time doesn’t meet the bar. If you store records offshore, including in cloud software hosted overseas, you generally need Inland Revenue’s approval to do so. For that reason, it’s worth checking your accounting software’s data storage location if you’re not sure.

Rental Property Records

For the rental property itself, keep these records for the 12 months ending 31 March each year:

• Copy of the Sale & Purchase Agreement (first year only)
• Total rent received
• Insurance — landlord protection, mortgage protection, house
• Legal fees
• Property management fees (if applicable)
• Rates — water and council
• Maintenance, including any purchases, e.g. a heat pump
• Rubbish collection (if you’re paying for it separately)
• Property improvements, with detailed invoices
• Any other fees or charges
• Sale and purchase agreement, if you sold during the year
• Both a chattels valuation and a general property valuation

The chattels valuation deserves particular attention. A standard registered valuation, done for finance purposes, usually lumps chattels into one rough figure — often $10,000–$15,000 regardless of the property. A dedicated chattels valuation itemises everything and typically finds substantially more. This flows straight through into a bigger depreciation claim every year you own the property. Keep the full report, not just the summary page — if a specific chattel is ever queried, the itemised detail is what supports your position.

For more information on chattels, see our four-article series:

1. Why You Should (Almost) Always Get Chattels Valued. This explains the business case — why a dedicated valuation beats a standard registered valuation, 8 reasons, exceptions.
2. Depreciation of Chattels in Your Rental Investment Property. This covers the classification test — IRD’s 3-step test for what counts as a chattel vs. part of the building, with worked examples.
3. Depreciation and Chattels: What to Do? Explains the practical FAQ — timing of a valuation, ownership transfers, catching up on missed claims
4. Depreciation Clawback and Your Rental Property. The exit-side mechanics — what happens on sale or change of use.

Home Office Costs

Home office expenses can generally be claimed if you have a rental property. Because rental income is usually passive — unless you’re managing the property yourself — a conservative claim makes sense if you use a property manager:

• Telephone — separate out the costs of line rental, internet and tolls
• Mobile phone costs
• Stationery, e.g. printer ink, pens, paper
• Visits to the rental property — record the date of each trip you make to check on it
• A percentage of any existing (if not already claimed) or new business-related equipment, e.g. computer, cell phone, iPad — include make, model, date and cost
• Any “home office” improvements — if in doubt, keep the records and we’ll verify these at year end

Landlords who self-manage at least one property — or who are self-employed or run a separate non-rental business — can go further and claim a percentage of:

• Insurance on their own home
• Mortgage interest or rent on their own residence
• Utilities
• Some repairs

The percentage should reflect the actual proportion of your home genuinely used for that purpose, and should stay consistent year to year unless your circumstances change.

Loan Information

For your rental property or properties, keep:

• Full bank statements for the 12 months ending 31 March, ideally downloaded in CSV format rather than PDF
• Statements for every loan tied to the property, plus the transactional account if there is one
• Balance remaining on all accounts as at 31 March
• Any fees charged

With full interest deductibility restored from 1 April 2025, mortgage interest is once again a significant deduction for most landlords. This makes accurate loan records more valuable than they’ve been in several years. Investors using revolving credit or offset facilities linked to personal accounts need particularly careful records, since Inland Revenue expects you to demonstrate exactly which portion of any drawn balance relates to the rental property.

Digital Tools Make This Easier

Most landlords now use accounting software rather than a spreadsheet or shoebox of receipts. Xero and MYOB Essentials both handle rental property accounts well, letting you photograph receipts on the spot, connect directly to your bank feed, and generate a clean set of records at year end rather than scrambling to reconstruct twelve months of activity in March. Whichever tool you use, the goal is the same: capture the expense close to when it happens, rather than trying to remember it months later.

Bank feeds in particular save considerable time at year end, since transactions land automatically rather than requiring manual entry from a statement. The catch is that a bank feed alone doesn’t tell you why a transaction happened. For example, a $450 payment to a hardware store could be a deductible repair or a capital improvement. Only a note or an attached invoice settles the question months later when you’ve forgotten the details. Get into the habit of tagging or attaching a receipt to each transaction as it comes in. That’s much better than leaving that job for your accountant to guess at from a bank description alone.

Organising Records So They’re Actually Useful

Keeping every receipt is only half the job. Being organised is the other. If your receipts are scattered across email attachments, a shoebox and three different bank accounts, they’re barely more useful than not having them at all. A simple folder structure, whether physical or digital, saves hours at year end:

• One folder per property, not one folder per year. Purchase documents, the chattels valuation and improvement records need to stay with the property for as long as you own it. A year-based filing system makes awkward.
• A separate sub-folder for the current tax year’s income and expenses. This is so your accountant can work through one clearly-bounded set of records rather than sifting the whole property history every March.
• A dedicated bank account for each rental property, if you own more than one. Mixing multiple properties’ income and expenses through a single account makes it far harder to allocate costs correctly. This is one of the most common sources of errors we see in client accounts.
• Digital copies of everything, even where you also keep paper originals. A fire, flood or simple loss of paperwork shouldn’t put seven years of tax records at risk.

None of this needs to be elaborate. A handful of clearly-labelled folders, kept up to date as the year goes rather than reconstructed in a rush each March, gets you most of the way there.

Worked Examples

Priya keeps meticulous records from day one. Priya buys her first rental property and sets up a dedicated bank account for it immediately, connects it to Xero, and photographs every receipt as it arrives. When her chattels valuation comes back, she uploads the report straight into her records folder. At year end, her accountant has everything needed in a single afternoon, and Priya claims every deduction she’s entitled to — including several she wouldn’t have thought of herself, because the records made the conversation easy.

Daniel reconstructs a missing year under pressure. Daniel receives a letter from Inland Revenue asking for supporting records on a rental property he sold eighteen months earlier. He kept most receipts, but never retained the original chattels valuation report . He can’t locate two years of bank statements from an account he’s since closed. Reconstructing that information takes weeks, involves calling his old bank for archived statements. It costs considerably more in accounting time than if he’d simply kept the original documents. Daniel’s situation is exactly why the 7-year retention period matters even after you’ve sold. Inland Revenue can still ask, and the cost of reconstructing missing records almost always exceeds the cost of having kept them properly the first time.

Records Checklist

Use this checklist every 31 March to make sure nothing’s been missed.

• ✅ Total rent received for the year
• ✅ Insurance premiums and policy documents
• ✅ Rates — water and council
• ✅ Property management fees
• ✅ Legal and accounting fees
• ✅ Maintenance and repair invoices
• ✅ Property improvement invoices, kept separately from repairs
• ✅ Chattels valuation and general property valuation
• ✅ Full bank statements for every loan and transactional account, in CSV format
• ✅ Home office expense records, including a log of property visits

Common Questions About Rental Property Records

Do I need paper copies, or is digital enough? Digital records are fine, as long as they stay complete, legible and accessible for the full retention period. A photo of a receipt that fades or a file format that becomes unreadable in a few years doesn’t meet the requirement.

What happens if I can’t find a record Inland Revenue asks for? Missing records can mean a disallowed deduction, which increases your tax bill and, in some cases, attracts penalties and interest. It’s far cheaper to keep the original than to reconstruct it later.

Do I need to keep records after I sell the property? Yes. Purchase, improvement and valuation records should be kept for as long as you owned the property, plus a further 7 years after the sale, since Inland Revenue can still review your position on that property during that window.

I missed claiming depreciation in my first year — can I still get chattels valued? Generally yes, though whether it’s worth the fee depends on your circumstances. Talk to your accountant about your specific situation.

Should I keep records for a property I own jointly with someone else? Yes — each owner needs their share of the records for their own return, but there’s no need to duplicate the underlying documents. Agree with your co-owner on where the master set lives and who’s responsible for keeping it current, so records don’t end up split across two people’s filing systems with gaps in both.

Summary

Rental property records NZ landlords need aren’t complicated, but they do need to be consistent. Keep rental income and expenses, home office costs and loan information for the 12 months to 31 March each year, retain everything for at least 7 years. Hold onto purchase, improvement and valuation records for as long as you own the property plus 7 years after sale. The landlords who claim the most – and who sail through an Inland Revenue review without stress – are consistently the ones who kept good records from day one… rather than reconstructing them under pressure later.

Talk to EpsomTax.com About Your Records

If your record-keeping has fallen behind, or you’re not sure what you should be keeping for your rental property, it’s far easier to fix now than to reconstruct everything during an Inland Revenue review. Contact EpsomTax.com and we’ll walk you through exactly what to keep for your situation. We work with New Zealand property investors every day and can help make sure you’re claiming everything you’re entitled to.