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NZ Property Investment Tax Rules 2025/26
Excel ModelsSept 20265 min

NZ Property Investment Tax Rules 2025/26 — What Your Cashflow Calculator Must Account For

NZ property tax rules changed significantly in April 2025. Most online calculators haven't kept up. Here's what your analysis tool needs to include — and what happens to your numbers if it doesn't.

NZ Property Cashflow Calculator vs Excel Template
Excel ModelsSept 20266 min

NZ Property Cashflow Calculator vs Excel Template: Which One Actually Gives You the Full Picture?

Free online calculators are fast — but they stop short of what serious NZ property investors need. Here's when a calculator is enough, and when you need an Excel model instead.

Why Serious NZ Property Investors Use Excel and Power BI Alongside Opes+, PropWiz, and Similar Tools
NZ MarketSept 20268 min

Why Serious NZ Property Investors Use Excel and Power BI Alongside Opes+, PropWiz, and Similar Tools

Most investors start with one platform and assume it should do everything. Here's why the serious ones build a stack — and where BI SmartStudio fits in.

Business owner struggling with cashflow negative chart
CashflowMarch 20268 min

Why Most NZ Investors Don't Actually Know Their True Cashflow

The number on your bank statement isn't your cashflow. Here's how to calculate it properly — and why the difference matters more than you think.

NZ property investor learning Power BI
Power BIFeb 20266 min

Getting Started with Power BI Desktop for Property Investors

A plain-English guide to installing Power BI Desktop, connecting your data, and getting your first dashboard running in under 30 minutes.

Young couple discussing LVR equity refinancing at bank
Portfolio StrategyFeb 202610 min

LVR, Equity, and When to Refinance: A Framework for NZ Investors

How to read your loan-to-value ratio as a strategic signal — and the four questions to ask before you call your bank.

Man assessing pessimistic realistic optimistic property options
Excel ModelsJan 20267 min

The Best-Case Trap: Why Optimistic Projections Kill Portfolios

Most cashflow models are dangerously optimistic. Here's how to stress-test your assumptions before your bank does it for you.

NZ property investment yields data 2026
NZ MarketJan 20269 min

NZ Rental Yields in 2026: What the Data Actually Shows

A data-driven look at rental yields across Wellington, Auckland, and regional NZ — and what they mean for your next investment decision.

5 key cashflow metrics NZ property investment
CashflowDec 20255 min

5 Cashflow Metrics Every Property Investor Should Track Monthly

You can't manage what you don't measure. These five numbers give you a complete picture of your portfolio's health every single month.

Property investor hold vs sell decision
Portfolio StrategyNov 202512 min

When to Hold vs When to Sell: Using Data to Make the Call

Emotion is the enemy of portfolio decisions. Here's the analytical framework AJ uses when evaluating whether to hold, improve, or sell a property.