Your rental tax, sorted.
It's easy to under-claim deductions when records are scattered across receipts, bank statements, and end-of-year guesswork. Zelvo fixes that — set up in 10 minutes, then log transactions as you go.
✓ Free for 1 property ·No credit card·Built for NZ landlords
Same headache. Every year.
NZ rental property tax is genuinely confusing. And the rules are spread across dozens of IRD pages.
The spreadsheet that maybe works
Your spreadsheet started simple. You've been patching it every year. You're not quite sure the formula is right. You file anyway and hope for the best.
The IRD rules you half-understand
Floor-area method. Common area proportions. Interest limitation. You've read the IRD page twice. You still guessed the rental ratio.
The deduction you didn't know to claim
Chattel depreciation. Mileage. The correct proportion of rates and insurance. It's easy to leave money on the table — nobody told you what you could actually claim.
Set up in 10 minutes.
Add your property
Enter your address, total floor area, and whether it's fully rented or you live there too.
Set up rooms
Add each room with dimensions. Mark as owner-occupied, rented, or shared. Ratio calculated instantly.
Log transactions
Add rent received and expenses as they happen throughout the year. Takes 30 seconds each.
Get your IR3 figures
Open the Tax Report. Gross income, deductions, and net rental income — ready to file.
From messy records to IR3-ready figures.
Open the Tax Report. Gross income, deductible expenses, and net rental income — calculated correctly and formatted exactly as IRD needs them. Hand it to your accountant or file yourself.
- ✓Rental ratio applied automatically — no manual maths
- ✓IR3R line-by-line breakdown — exact amounts for Rates, Insurance, Interest, Agent's fees, R&M, Depreciation, Vehicle, Legal and Other
- ✓Catches the niche rules most landlords don't know about — capital vs repair, low-value asset write-off, rebate treatment, legal-fees cap
- ✓Chattel depreciation and mileage included
- ✓Ready to paste straight into myIR
Illustrative mockup — the actual interface may differ.
Joint ownership, split right.
Own your rental with a partner or spouse? Zelvo splits every figure by ownership percentage — so each of you knows exactly what to declare in your own IR3. No spreadsheet. No arguments.
Each co-owner's IRD Filing page auto-scales to their share — the IR3R line-by-line amounts you see are exactly what you type into myIR, already halved (or whatever your split is).
Try it free
You're in at the beginning.
Zelvo is being built in public — starting with single-property landlords, because that's where precision matters most. Every IRD calculation and edge case is being refined before rolling out more widely.
Managing your first property is free. Your feedback is the most valuable thing you can give right now.
Get started freePrecision before scale
Multi-property support is coming — built the same way as everything else here: properly, without shortcuts. When it ships, it will be as audit-proof as your single-property report is today.
Your feedback shapes the build
Spotted something missing? Something confusing? Send it through. Every piece of feedback lands directly with the person building this.
Early adopters get first access
When multi-property unlocks, people who helped shape the product get a heads-up first.
Add your property. Start tracking.
About 10 minutes to set up. Free for 1 property, no credit card.
This is a guide only, not tax advice. Tax rules change each year and your situation may involve factors not covered here. Consult a registered NZ tax professional or chartered accountant before filing. Zelvo accepts no liability for errors in tax calculations or filings made using this tool.