The question nobody asks first
If you have some spare capital and you're starting to think seriously about your financial future — about building something real, not just keeping up — then you're in the right place. There's no right time to start (though earlier is always better), and no minimum dollar amount. What matters is the thinking, not the starting figure.
But here's what I got wrong for years, and what most people get wrong: I started with what to buy before I'd figured out who I was as an investor. I had capital, I had enthusiasm, and I had no framework at all. I was essentially gambling with extra steps.
The four questions in this framework — which I call GAIT — are what I wish someone had handed me at the start. They come before everything else: before ETFs, before brokers, before portfolio construction. Get these right, and the rest follows logically. Skip them, and you're building on sand.
What this paper is and isn't. This is a framework for long-term equity investors — mostly in the US market, mostly using ETFs, with a patient, multi-year mindset. It's not about quick returns, property, or crypto. And it's educational material, not financial advice. Your specific circumstances — particularly around FIF tax — warrant a conversation with a qualified accountant.
Three things to get right first
Debt
If you're carrying credit card debt at 24% interest while trying to generate investment returns of 11%, the maths doesn't work. Paying down high-interest debt first isn't a delay — it's the highest-return investment available to you.
The one genuine exception: KiwiSaver. If you're not in it, put this down and sign up right now. Employer matching and the government co-contribution make it the best default investment available to New Zealanders. Don't wait.
Compound interest
The single most important mechanical principle in long-term wealth generation. $100,000 at 12% per annum: without compounding you'd get $36,000 in interest over three years. With annual compounding, $40,493. With monthly compounding, $43,077. The gap grows dramatically over 20 or 30 years. Time in the market matters more than most investors appreciate.
"My wealth has come from a combination of living in America, some lucky genes, and compound interest." — Warren Buffett
Crypto and speculation
This framework doesn't cover crypto — not because it's irrelevant, but because it's speculation rather than investment. Investing means acquiring an asset with intrinsic value that can appreciate because that underlying value has grown. Speculation means buying something in the hope someone else will pay more for it later. Currencies — including digital ones — have no intrinsic value. There's nothing wrong with speculating if you know that's what you're doing. Just don't call it investing, and don't mistake it for a substitute.
The four questions
These are the most important part of this paper, and they come before everything else. Answer them honestly, write the answers down, and revisit them at least annually. Life changes — a new job, marriage, an inheritance, a health scare — and your answers will too. What's not fine is having no answers at all.
Note: the four questions are interrelated. If your Goal is a 6-month horizon but your Type is Long-Term Value, you've got a conflict that will undermine every decision downstream. Resolve inconsistencies before moving on.
My own GAIT profile, for reference: G = Retirement / A = Medium to High / I = High interest with time to spend / T = Long-Term Value. Everything I've done since 2009 has been structured around these four answers.
Why ETFs — and why not actively managed funds
If your GAIT answers point toward long-term equity investment — which they probably do if you're reading this — then the vehicle question has a clear answer: Exchange Traded Funds.
An ETF is a collection of securities that tracks an underlying index. It trades on an exchange like a normal stock. The provider (Vanguard, iShares, etc.) manages the composition to track the target index; you get instant diversification, professional index management, and liquidity — without the cost or underperformance of active management.
The fee argument
Actively managed mutual funds charge 0.8%–1.5% per annum for a professional to make decisions on your behalf. Decades of academic research consistently show that the majority of active fund managers fail to outperform their benchmark index over any meaningful period — especially once fees are deducted. You're paying a premium for underperformance.
Over a 20-year period, the fee differential alone — compounding silently in the background — produces a dramatically different outcome. The documentary How to Win the Loser's Game covers this with rigorous data and is free to watch.
"Most investors would be better off in an index fund." — Warren Buffett, in his shareholder letters — repeatedly, over 40 years
A simple model portfolio
Portfolio construction should follow directly from your GAIT answers. The complexity of your portfolio should match your available time and interest. A simple, globally diversified portfolio maintained with annual rebalancing will outperform most actively managed alternatives — and is entirely appropriate for the vast majority of long-term investors.
The model below is four ETFs. That's it. It requires an annual rebalance — roughly an hour once a year — to restore target weightings.
| Ticker | Description | Asset class | Allocation |
|---|---|---|---|
| VTI | Vanguard Total Stock Market ETF — 2,500+ US stocks, 0.03% p.a. | US Equities | 33% |
| VEU | Vanguard FTSE All-World ex-US — large and mega caps outside the US | Global Equities | 33% |
| BND | Vanguard Total Bond Market ETF (US) | US Bonds | 16% |
| BNDX | Vanguard Total Bond Market ETF (ex-US) | Global Bonds | 16% |
$75,000 invested across these four ETFs on 1 October 2017, with no rebalancing, grew to $95,811 by 2021 — a return of 27.94% over the period.
What to avoid
Leveraged and inverse ETFs. Designed for active daily trading. They decay in value over time through volatility drag. Not long-term vehicles — regardless of how good the returns look on paper.
Reactive selling. Selling in response to short-term market declines is the most common and most destructive investor behaviour. If you've bought a well-researched ETF at a fair price for the right reasons, a macro-driven dip is not a reason to sell. It's often a reason to buy more.
Chasing performance. Past performance does not predict future returns. Allocating to an ETF because it returned 40% last year is not an investment thesis.
The NZ investor's landscape
Brokers
To invest in US equity markets, you need a broker with international market access. I used Saxo Capital Markets from 2009 and switched to Interactive Brokers (IBKR) in 2023 — established international brands with flat fees per trade (USD $9–15 regardless of trade size). Compare that to a percentage-based broker: a $30,000 trade at 1.5% is $450 versus $15. That gap compounds significantly over a portfolio lifetime.
For most New Zealand retail investors, the local options are worth considering: Hatch, Sharesies, and Kernal are relatively easy to set up and perfectly functional for a straightforward ETF portfolio.
Foreign exchange
Investing in USD from New Zealand means currency movement is a real variable in your returns. Making 11% in USD and watching NZD appreciate 6% against it will eat your gains when you convert back. NZ banks are not cheap on FX conversions — watch those costs.
New Zealand brokers like Hatch and Sharesies help deal with FX by simplifying the conversion process, but they don't solve the underlying issue — you're still exposed to currency movement. Some brokers and fund providers also offer hedging strategies and hedged fund variants to help manage this, but hedging comes with its own costs and complexity. It still needs to be properly considered in the context of when you're proposing to enter and exit an investment, and what your time horizon actually is.
FIF tax — a NZ-specific advantage worth understanding
Offshore equity investments above the $50,000 threshold fall under New Zealand's Foreign Investment Fund (FIF) tax regime. There are two main calculation methods:
Fair Dividend Rate (FDR): Tax is calculated on 5% of the opening market value of the portfolio, regardless of actual returns. Optimal in strong years.
Comparative Value (CV): Tax is calculated on actual gains. Optimal in flat or negative years.
The detail most investors miss: You elect your FIF method after the tax year ends — and you choose independently each year. In a good year, elect FDR and pay tax on only 5% of portfolio value. In a bad year, elect CV and pay tax on your actual (lower or negative) return. You always get to use the better option in hindsight. This is a significant structural advantage — but make sure someone is actively making that election each year, not just defaulting to FDR.
What's worth your time
If you're going to invest in anything, you have to understand it first. Otherwise you're just gambling. The list below is what's actually moved my thinking — not an exhaustive catalogue, just what I'd hand someone starting out.
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1Start hereThe Simple Path to Wealth — J.L. CollinsIf I could recommend only one book, this is it. Absolute gold. Clear, direct, and genuinely useful for anyone building toward financial independence.
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2Warren Buffett's Chairman's Letters — Berkshire HathawayFree online, going back over 50 years. Start with a recent one and work backwards. Invaluable — not just for investment thinking, but for understanding how to think about business and value at all.
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3Free documentaryHow to Win the Loser's GameThe best short-form treatment of the active vs passive debate I've found. Rigorous, evidence-based, and freely available. Watch it.
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4A Random Walk Down Wall Street — Burton MalkielThe foundational text for the passive investment case, first published in 1973 and updated regularly. I wish I'd read it 20 years earlier.
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5Poor Charlie's Almanack — Charles MungerCharlie Munger at his brilliant, irreverent best. Not narrowly about investing — about how to think, reason, and avoid the mental errors that cost you money and time.
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6Research toolAI tools — Claude and PerplexityFor getting up to speed on a sector, understanding FIF tax treatment, or stress-testing your own thinking — a well-prompted AI conversation gets you there faster than almost anything else. Perplexity is particularly useful for current research with cited sources; Claude for deeper conceptual discussion. Neither replaces judgement, but as a thinking partner at 11pm when you're trying to work something out, they're hard to beat.
Platforms worth bookmarking: ETFdb.com for ETF screening, Morningstar for independent fund analysis (paid tier at USD $199/year is worth it), Seeking Alpha for portfolio tracking and research, Investopedia for any concept you need to understand.
A concrete starting sequence
- Answer the four GAIT questions. Write them down — not just mentally, actually write them down.
- Wait 24–48 hours and revisit them. If the answers are the same, you know yourself. Inconsistencies between sessions are worth paying attention to.
- Based on your GAIT profile, identify your investment vehicle. For most long-term equity investors, ETFs are the right place to start.
- Read at minimum one foundational text. The Simple Path to Wealth is the recommended starting point; How to Win the Loser's Game is free and worth watching this week.
- Research and select a broker with access to US markets. Test the platform with a demo account before committing real capital.
- Construct a simple initial portfolio — four ETFs is enough — with a written investment thesis for each position. If you can't write and defend the thesis, think again.
- Set a fixed review schedule: quarterly for portfolio assessment, annually for GAIT reassessment and rebalancing.
- Adjust strategy and holdings only when the underlying investment thesis has changed — not in response to price movements.