Your rental tax, sorted.
Most NZ landlords under-claim deductions because their records are disorganised at tax time. Zelvo fixes that — automatically, in about 10 minutes.
✓ Free for 1 property ·No credit card·NZ landlords only
Tax time is the worst week of every year.
NZ rental property tax is genuinely confusing. And the IRD does not make it easier.
The spreadsheet that maybe works
You built a spreadsheet three years ago. You've patched it every April. 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. QB 25-01. 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. Most NZ landlords leave money on the table every year — not because they're dishonest, but because nobody told them what they could actually claim.
Up and running 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 filed in minutes.
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
- ✓Every expense category broken down with deductible amounts
- ✓Chattel depreciation and mileage included
- ✓Ready to paste straight into myIR
Illustrative mockup — the actual interface may differ.
Joint ownership, finally sorted.
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.
Nothing else in NZ does this. Most couples file separately using a rough mental calculation — or pay an accountant to do the split. Zelvo does it in real time, automatically.
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. We're getting every IRD calculation, every edge case, every audit-trail detail exactly right before we open wider.
Your first property is free. Your feedback is the most valuable thing you can give us 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 frustration is the roadmap
Spotted something missing? Something confusing? Tell us. Every piece of feedback goes directly to the people building this. Your tax pain today becomes a feature next month.
Early adopters get first access
When multi-property unlocks, you won't be waiting in a queue. People who helped shape the product get in first — ahead of anyone who shows up later.
Stop dreading April.
Set up in 10 minutes. Get your IR3 figures before tax time.
Free for 1 property. No credit card required.
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.