Less admin. More certainty.
Whether your property is fully rented or you live there with flatmates, Zelvo tracks everything, calculates your exact deductible amount, and produces your IR3 figures without you lifting a finger.
✓ Free for 1 property ·No credit card·FY 2025-26 · File by 7 July
Built for NZ's two most common rental setups
Fully rented out, or you live there with tenants — these are the two setups IRD treats differently. Zelvo knows the difference and applies the right rules automatically.
Tenants in every room.
Simple as that.
When your property is fully rented out, every dollar of expenses is 100% deductible. No room setup needed. Zelvo applies a ratio of 1.0 — full deductibility, instantly.
- ✓100% rental ratio — no apportionment needed
- ✓No room builder required — log expenses and go
- ✓Full deductibility from day one of the FY
You live there too.
The IRD has a formula.
When you share the property with tenants, only a portion of expenses is deductible — based on floor area. IRD mandates a flat 50% weighting for shared/common areas. Zelvo calculates this exactly, room by room.
- ✓Room-by-room builder with sqm dimensions
- ✓50% weighting on common areas — IRD compliant (QB 25-01)
- ✓Rental ratio calculated automatically from your floor plan
- ✓Per-FY room snapshots when your layout changes
- ✓Tenancy tracking with date-weighted ratio adjustments
Your IR3 figures, done for you.
Open the Tax Report and everything is there — gross income, deductible expenses broken down by category, depreciation, mileage, and net rental income. Formatted exactly as IRD needs it.
Hand the report to your accountant and they'll be done in 20 minutes. Or paste the figures directly into myIR yourself.
Illustrative mockup — the actual interface may differ.
Illustrative mockup — the actual interface may differ.
Every transaction, in one place.
Log rent received and every deductible expense as they happen. Zelvo applies your rental ratio automatically — so you always know exactly what's deductible without touching a calculator.
Import months of transactions in one go. Zelvo auto-categorises based on description and learns from your corrections.
Set up mortgage repayments, rates, and rent once. Generate the whole year's transactions in seconds.
Attach receipts to any transaction. Everything IRD might ask for, filed in the right place.
All transactions are scoped to the NZ fiscal year (Apr–Mar). Switch years without losing any data.
Two deductions most landlords forget to claim.
Chattel depreciation and mileage are legitimate, IRD-approved deductions. Most landlords skip them because the tracking is tedious. Zelvo makes both effortless.
Every appliance and fitting
is worth something.
The dishwasher, the heat pump, the carpet — all depreciable. Record each chattel with its cost and IRD depreciation rate. Zelvo calculates the annual deduction and applies your rental ratio automatically.
- ✓Investment Boost — extra 20% first-year deduction on new chattels bought on or after 22 May 2025 (NZ Budget 2025), applied automatically
- ✓Capital improvements — upgrades tracked as separate additions, each depreciating from its own date
Illustrative mockup — the actual interface may differ.
Every trip to the property
is a deduction.
Inspections, repairs, tradespeople meetings — every kilometre driven counts. Log the trip, Zelvo looks up the IRD rate for your vehicle type and fiscal year, and calculates the deduction automatically.
Illustrative mockup — the actual interface may differ.
Own it together. File separately.
If you co-own a rental property, each of you must declare your proportional share on your own IR3 — not a combined figure. This trips up couples every single year.
Zelvo splits every figure by ownership percentage in real time. Each owner gets their exact gross income, deductible expenses, and net income — ready to file. Nothing else in NZ does this.

Know exactly what to enter, where.
myIR is not intuitive. Zelvo includes a step-by-step filing guide built right into the app — with your real figures, so you're not guessing which number goes where.
Individuals must file their IR3 by 7 July each year. Zelvo reminds you in the app. If you use a tax agent, their deadline may differ.
Everything included. Nothing held back.
- ✓IRD floor-area ratio (IR264 / QB 25-01)
- ✓50% weighting for common areas
- ✓Full rental and flatting support
- ✓FY-aware rule engine
- ✓Interest limitation (auto per FY)
- ✓Net rental income calculation
- ✓Income and expense tracking
- ✓CSV bank import with auto-categorisation
- ✓Recurring transaction templates
- ✓Receipt upload per transaction
- ✓Fiscal year scoping (Apr–Mar)
- ✓CSV export
- ✓Room builder with sqm dimensions
- ✓Per-FY room snapshots
- ✓Chattel depreciation (DV and SL)
- ✓Disposal gain/loss tracking
- ✓Mileage trip logging
- ✓Utility apportionment (floor-area or headcount)
- ✓Joint ownership percentage tracking
- ✓Per-owner IR3 split
- ✓Co-owner invitation system
- ✓5-step myIR filing guide
- ✓Documents checklist
Every feature on this page is yours — free, for your first property. We're perfecting the engine before we scale. Multi-property support is on the way, and early adopters shape when and how it ships.
Get started freeSet up in 10 minutes. File with confidence.
Free for 1 property. No spreadsheets. No guessing.
Free forever 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.