Search

20 Must-Know Money Lessons (Learned From Experience)

Our guide reveals 20 money lessons, often learned by people the hard way, that you can consider and use to get ahead financially.
Updated 13 March 2025
Introduction
  • There are a lot of hard-learned lessons, and this guide collects what we see as the most important twenty to help you avoid them. 
  • Financial mistakes are easy to make and hard to recover from. We've focused on relationships; our view is that a harmonious union isn't just about love; it's about aligning financial dreams and habits. If things go wrong, divorce can take years or even decades to recover from.
  • Costs in New Zealand are high, and there is an alarming amount of consumer debt. We believe it's holding people back from being able to plan their futures. The lessons we list below are designed to help make better decisions.
  • This guide is our first publication and is aimed to share hard lessons learned with New Zealanders looking to get ahead. If you have any comments or wish to share something on this very important subject, please contact our research team.

Related Guides:

MoneyHub Founder Christopher Walsh Explains Why We've Published this Guide:

"Everyone, at some point in their lives, will make financial decisions they later regret. Whether it's an impulsive purchase, a bad investment choice, or a missed opportunity, the key is not to dwell but to learn and move forward. We're all human, and mistakes are part of our growth journey. I've made a few financial errors, but each has been a lesson. It's not the setback that defines you, but how you recover, learn, and plan for the future". 

"There's a lot of lessons around relationships and money - the priority is to share those, so you'll see them at the top of the list below".

"Investments shouldn't be gambles based on trends or popular opinion, but informed decisions made with a clear understanding of the risks and potential rewards. "During the 2020 and 2021 investment booms, I saw too many individuals jump into markets they didn't fully grasp. When the tide turned, they wondered where it all went wrong. Educating yourself and seeking expert advice can make all the difference in your investment journey."

"Remember; life is filled with lessons, and many revolve around money. But remember, while money plays an essential role in our lives, it's the experiences, relationships, and memories we make that truly enrich us. Make informed choices, prioritize your well-being, and always strive for a balance between financial prosperity and personal fulfilment."
Christopher Walsh
MoneyHub Founder

Our Friends Booster Offer Booster Savvy, Where You Can Save and Spend Smarter - We See It As Your Money's New Best Friend

  • Too much money is wasted by hard-working New Zealanders. Booster Savvy helps you take charge with a 3.75% p.a. return (net of fees, reviewed monthly) and tools to spot spending leaks and wasted money.
  • Unlike banks who push debt with credit cards, personal loans and expensive overdrafts, Savvy invests your money in the Booster Savvy Fund, offering growth and a Mastercard debit card for everyday use.

Why Savvy is valuable to minimise your everyday spending:
  • Spending analytics reveal trouble spots, and Savvy's app gives you the details you need to avoid wasting money. By seeing where your money goes and using features like Boost and Sweep to build savings and Safe to Spend that shows you how much you can safely spend before next payday, you can visualise where your money goes and make better decisions.
  • We believe the Savvy app offers unrivalled insights into helping you avoid wasting money by analysing your expenses.  
  • See how Savvy can help you understand your finances in our Savvy Review or at their website.​

Twenty Must-Know Money Lessons (Learned From Experience)

Your choice of partner is one of the biggest, if not the biggest, financial decisions you will ever make

Compatibility in love is one thing, but financial compatibility can dictate the overall harmony in a relationship. If you and your partner have drastically different spending habits or financial goals, it can lead to tension and disagreements.

Too many relationships are filled with friction because of money. It's essential to be on the same page and value the same things; otherwise, disagreements and tension will always arise. 

MoneyHub Founder Christopher Walsh shares his view on partner choices:
  • "A harmonious relationship extends beyond love and communication; it encompasses financial goals and habits. Choosing someone whose financial philosophy aligns with yours can set a foundation for a prosperous life together".
  • "However, things can get tough quickly if you're not aligned on money. If one is a spender and the other a saver, there will always be problems. The easiest solution is to adopt the FIRE way of thinking, but I realise that's idealistic as not everyone can just subscribe to a way of thinking overnight. It takes time to change behaviours, and spending money is emotional for many people - control or influence isn't always welcome".
  • "However you approach money with your partner, you need to be aligned on your values and how and what you spend. There's no point in agreeing to something and later finding out there's a credit card whirring away on the side. It's not easy, but open communication gets results".​

Divorce will (often) destroy you financially

While not every separation results in financial ruin, the costs associated with divorce - both direct and indirect - can be staggering. Legal fees, asset divisions, rent costs while living out of home and other expenses can disrupt even the most stable financial positions.

If you're going to get divorced, you need to be prepared to face the financial costs and make a plan to pay for them. Many older New Zealanders struggle to recover from a divorce in their 50s or 60s. It's a tough place to be - when assets are split, often it's the family home that is the largest asset, and it may need to be sold to divide the assets equally. This leaves two people without a home a sum of money and facing the issues of a new mortgage, 25+ year repayments, and possibly bringing in flatmates to help with bills and living costs. 

If it's not clear - divorce is critically problematic and often can't be avoided, meaning it becomes a hard-learned lesson by an increasing number of New Zealanders per this 2022 NZ Herald article.

Christopher comments:
  • "The financial implications of divorce aren't just about the immediate costs. It's the long-term impact and potential setbacks in financial goals and dreams that make it a difficult pill to swallow. Divorce, apart from its emotional toll, has financial ramifications that linger. Being financially savvy and seeking professional advice during these times can alleviate some monetary strains".​

A good partner can significantly improve your position

Having a partner with similar financial goals can accelerate wealth-building. Joint ventures like purchasing property young can lay a foundation for future stability and growth. Achieving success is much easier if you're both working towards a common goal. Together, you'll make sacrifices and discuss what you must do to reach your goals. 

New Zealanders who struggle with their partner to talk about money have a harder time making things work - honesty around money is a huge component of a healthy relationship. 

Christopher comments:
  • "Two heads are often better than one, especially when they share the same financial vision. The collective strength of partners with aligned financial goals can achieve wonders - there's so much momentum created from working together. It's much harder to be in a relationship but working for yourself - there's a lack of mutual respect."

Our Friends Booster Offer Booster Savvy, Where You Can Save and Spend Smarter - We See It As Your Money's New Best Friend

  • Too much money is wasted by hard-working New Zealanders. Booster Savvy helps you take charge with a 3.75% p.a. return (net of fees, reviewed monthly) and tools to spot spending leaks and wasted money.
  • Unlike banks who push debt with credit cards, personal loans and expensive overdrafts, Savvy invests your money in the Booster Savvy Fund, offering growth and a Mastercard debit card for everyday use.

Why Savvy is valuable to minimise your everyday spending:
  • Spending analytics reveal trouble spots, and Savvy's app gives you the details you need to avoid wasting money. By seeing where your money goes and using features like Boost and Sweep to build savings and Safe to Spend that shows you how much you can safely spend before next payday, you can visualise where your money goes and make better decisions.
  • We believe the Savvy app offers unrivalled insights into helping you avoid wasting money by analysing your expenses.  
  • See how Savvy can help you understand your finances in our Savvy Review or at their website.​

A pre-nuptial/contracting out agreement is very valuable

Many New Zealanders think that a prenup stems from distrust or anticipating failure. It's not either - it's about protecting individual assets and clearly defining financial expectations. Such agreements can prevent potential conflicts and misunderstandings down the line.

Prenups or contracting out agreements can be seen as unromantic, but they're essentially financial clarity tools. Our guide to prenups has more information about what's involved and why many New Zealanders have regretted not getting one.

Christopher shares:
  • "Thinking of prenups as purely protective rather than pessimistic can change the whole perspective. It's about clarity and setting clear expectations from the get-go. In relationships, clarity is kindness, which also applies to financial matters. Prenups might seem clinical, but they can save a lot of heartaches later on."​

It's the ten $15 ones that derail your finances, not the one or two $100 purchases

​Small, frequent expenses often fly under the radar but can add up quickly, eating into your savings potential without you even realising.

It's easy to track big-ticket items, but those small daily or weekly expenses? They're the silent budget killers. Being mindful of them can lead to significant savings over time.

Examples include food at petrol stations, takeaway coffee and cakes, small items from shops you don't need (or later want to keep hold of), subscriptions you don't use, and many more everyday expenses. 

A budget app is a strong starting point to see exactly where your money goes.

Christopher comments:
  • ​"It's often the small leaks that sink big ships. Being vigilant of those frequent minor expenses can significantly shift your financial trajectory. We live in an era of convenience, and those conveniences come at a cost. Regularly reviewing our spending habits can be an eye-opener and a game-changer".

Changing jobs is the fastest way to earn more

​Loyalty to a company is arguably an old approach many employers take advantage of by way of a 'loyalty discount'. Throughout New Zealand, switching jobs is often the only way to get a substantial salary bump and career advancement. Too many businesses don't need to be dynamic, so they don't increase their pay above standard annual salary increments and hope that staff stay. 

While job hopping shouldn't be done without due consideration, sometimes changing roles or companies can bring about a better salary and fresh opportunities and experiences.

Christopher comments:
  • "While company loyalty is admirable, it shouldn't come at the expense of personal growth and financial betterment. In today's dynamic job market, sometimes progress requires taking that leap. While the comfort of familiarity is enticing, the allure of growth and better financial prospects is hard to ignore".

Avoid unnecessary debt - it works out to be a trap

While certain debts like student loans or mortgages can be seen as investments in the future, frivolous debt acquired for instant gratification can often be financially and mentally detrimental.

It's crucial to maintain oversight and control over your financial obligations - debt can be empowering or enslaving, depending on how it's managed. 

Christopher cautions:
  • "Debt, when mismanaged or taken on without consideration, can be a heavy burden. There's too much of it in New Zealand, and it's increasingly difficult to get out of". 
  • "An $8,000 credit card balance costs about $2,000 a year in interest, plus repayments, which requires after-tax money. That means $2,000+ a year of your pre-tax salary is spent paying off a very sticky credit card. Doing that does not bring joy and is instead incredibly frustrating". 
  • "It's essential to maintain a healthy perspective about debt (by avoiding it unless you have no other option to pay for a need) and avoid the pitfalls of instant gratification to sleep well at night without the worries of debt."

Save at the start of your pay cycle

Prioritising savings ensures that you're consistently building wealth. Setting aside money right after being paid makes you less likely to spend it on non-essentials. People who put at least 10% of their money into savings (for example, a high-interest paying call account have options and can make informed financial choices. Those who don't save and spend first end up without much left (if anything) and rely on debt.

Christopher's suggestion is simple:
  • "Pay yourself first. You're ensuring a brighter financial future by prioritising savings at the start of your pay cycle. It's a financial essential often disregarded, but New Zealanders who sleep well usually have money saved for an urgent cost no one can see coming."

Related tip: Save 10% of your net income for the long term if you want to be happy and sleep well
​Consistent, disciplined saving can pave the way for financial freedom in the future. Setting aside a fixed percentage ensures you build wealth regardless of income fluctuations.

Christopher emphasises:
  • "Consistency is key in financial planning. Setting aside a fixed percentage like 10% means committing to your financial future."

Our Friends Booster Offer Booster Savvy, Where You Can Save and Spend Smarter - We See It As Your Money's New Best Friend

  • Too much money is wasted by hard-working New Zealanders. Booster Savvy helps you take charge with a 3.75% p.a. return (net of fees, reviewed monthly) and tools to spot spending leaks and wasted money.
  • Unlike banks who push debt with credit cards, personal loans and expensive overdrafts, Savvy invests your money in the Booster Savvy Fund, offering growth and a Mastercard debit card for everyday use.

Why Savvy is valuable to minimise your everyday spending:
  • Spending analytics reveal trouble spots, and Savvy's app gives you the details you need to avoid wasting money. By seeing where your money goes and using features like Boost and Sweep to build savings and Safe to Spend that shows you how much you can safely spend before next payday, you can visualise where your money goes and make better decisions.
  • We believe the Savvy app offers unrivalled insights into helping you avoid wasting money by analysing your expenses.  
  • See how Savvy can help you understand your finances in our Savvy Review or at their website.​

Focus on increasing your primary income source

​While side hustles and investments help grow your wealth and financial freedom, the bulk of your effort should be towards maximising your primary income, as it's likely the most significant source of your earnings. For this reason, we believe changing jobs is a lesson well learned by many New Zealanders who get an automatic pay raise without all the nonsense and meetings with 'the boss' just by switching jobs efficiently. 

Christopher observes: 
  • "Side hustles and investments are valuable, but your main job is often where the most significant potential lies. Always look for ways to excel and increase your primary income".
  • "Changing jobs comes with a new challenge and opportunity, although there are risks that it won't always work out, and you may not be as happy at the new place".

Money isn't everything

While financial security is crucial, it should never come at the cost of personal happiness and well-being. Strive for a balance between saving and enjoying the experiences life has to offer.

Money is a tool, not an end goal. It's essential to balance financial prudence and enjoying the moment - there's no fun to be had from staying at home and checking how much money you have in your investments if you're missing out on life.

Christopher reflects:
  • "Money can facilitate experiences, but it's not a substitute for genuine human connections, love, and personal growth. Balance is the key."
  • "We chase money often thinking it'll buy happiness, but at the end of the day, it's the simple joys and relationships that truly matter."

The power of compounding interest is understated

​Over time, the interest earned on your investments or savings can earn interest, leading to exponential growth. Starting early can make a massive difference in the long run. Our guide to compound interest has more details.

Christopher states:
  • "Compounding interest is one of the wonders of the financial world. The earlier you start, the more you can benefit from this powerful financial phenomenon".
  • "The magic of compounding is that it rewards patience and consistency. It's not just about how much you save, but how long you let it work for you".
  • Time is the greatest ally of compounding interest. Starting early, even with small amounts, can lead to astonishing results down the line".

Career and money aren't the sole sources of happiness

​Achieving career success and amassing wealth can be fulfilling, but they should never come at the cost of personal well-being or relationships. You should always look for ways to stay challenged and learn in a job, but it's dangerous to focus on making as much money as possible as the primary reason to start work every day. 

Additionally, while financial security is essential, it shouldn't become the sole focus of your life. Relationships, experiences, and personal growth are invaluable and cannot be quantified monetarily.

Christopher shares a personal lesson:
  • "I've seen many chase career success at the expense of personal happiness - it's not sustainable, and when things go wrong at work, it feels a lot more significant than it is. It's essential to remember that career and money are tools to facilitate a joyful life, not the source of joy itself."
  • "Money is a means, not an end. Living a fulfilling life involves a balance of financial wisdom and cherishing the intangible moments money can't buy."

Your money mindset shapes your financial reality

​The way you think about money, often rooted in childhood observations and experiences, deeply influences your financial behaviours and decisions throughout life. This 'money mindset' can be either a limiting belief system holding you back or an empowering perspective propelling you forward.

Many don't realise how much their internal narratives – such as "money doesn't grow on trees", "you have to work hard to earn a dollar", or "money is the root of all evil" – impact their financial lives. Reassessing and reshaping these beliefs can open doors to opportunities and a healthier relationship with money.

Our view: While it's crucial to understand the value of hard work, it's equally vital to recognise the importance of working smart and letting money work for you. Investing wisely, seeking passive income streams, and being open to financial learning can lead to significant growth. Helping to share this way of thinking is the purpose of the MoneyHub website. 

Christopher notes:
"Your relationship with money goes beyond numbers in your bank account. It's intertwined with your self-worth, aspirations, fears, and dreams. Recognising and challenging any limiting beliefs about money can lead to a transformation not just in your finances but in your overall approach to life". 

Don't buy a brand-new vehicle

Vehicles, especially brand-new ones, depreciate faster than most assets. While the allure of a shiny new car is tempting, a gently used one can provide almost the same experience for a fraction of the cost.

Christopher’s Take:
  • "For many, cars are non-negotiable expenses. However, by opting for a year or two old model, you're safeguarding your money from immediate depreciation, all while still enjoying the modern features."

Beware of lifestyle creep - it's a trap

A rise in income often sees a parallel increase in expenses. But upgrading your lifestyle whenever your salary bumps up can set you back in your financial journey.

Christopher warns:
  • "In NZ, living costs can skyrocket quickly. It's tempting to indulge in the finer things with each pay raise, but this habit doesn't always equate to greater satisfaction. Put future financial freedom first."​

Don't FOMO; invest only in what you understand

Chasing after the latest investment trend or being pressured by the fear of missing out can harm your financial health. So many people rushed into shares and crypto at the tail-end of the run during 2020 and 2021 and lost a lot of money and didn't understand why. Understanding your investment is crucial to making informed decisions - our list of investing mistakes lists major errors and why people keep making the same mistakes. 
 
Christopher highlights the perils of impulsive investing:
  • "Falling prey to the FOMO mentality can lead to significant losses. Getting in is very easy, but you can quickly be burned and left feeling uneasy about investing overall. Always ensure you understand your investments and avoid jumping onto bandwagons blindly - many wagons are falling into ditches, and they don't get back out."​

Living with parents can be financially wise if circumstances allow

Living at home can provide financial benefits if you're fortunate enough to have a good relationship with your parents and they're open to it. It allows for substantial savings, and why you miss the opportunity of flatting or living away from home, the cost savings are significant. 

Christopher notes:
  • "Living at home can be an incredible financial advantage for those who can manage it. The potential for savings puts you ahead of anyone else renting or in a flat, which means your financial headstart is significant".
  • "There are some downsides, but given the cost of living in New Zealand, I argue that it's an untapped source of savings that is too often overlooked for 'experience' that can come at a high financial cost."

A commitment to getting debt-free as quickly as possible gives you more options (and helps you sleep better)

Paying off debts, especially significant ones like mortgages helps achieve financial freedom faster. This often requires a combination of disciplined spending and making sacrifices, but if you want to spend your money on yourself rather than credit card and bank interest repayments, getting rid of debt is the only way to give you the power. 

Christopher explains further:
"There is too much consumer debt - and it's a reason banks and loan companies are swimming in money while ordinary New Zealanders feel anxious checking their credit card and loan statements. It's a huge waste of money - spending $5,000 on non-essentials on a credit card and then parking the debt at 20% p.a. interest rates is a common state of affairs in every corner of New Zealand".

Business ownership is risky, but it does offer financial growth to those who make it a success

Many wealthy New Zealanders attribute their financial success to owning or being involved in businesses. While not without risks, business ownership can offer exponential financial rewards. However, this isn't something for everyone - most businesses fail within a few years, as evidenced by this NZ data. For those who make it work, it can be much more lucrative than working for someone else, but this depends on the industry, your timing, scale and commitment.

Christopher observes:
  • "Business ownership is a common thread among many wealthy individuals. While it's not a guaranteed path to riches, it offers opportunities and financial potential that traditional employment often can't match."

Educate yourself on financial products to make better decisions

Understanding how financial products work, from mortgages to credit cards, can save you money and allow you to use these tools to your advantage. MoneyHub explains everything, but there are other sources - those who want to learn will be more likely to make better choices and keep control of their money.

Financial education is empowerment. Understanding how different financial products operate can make them work for you instead of being trapped by hidden pitfalls.

Christopher makes the risks clear:
  • "If you are unaware of the traps waiting to get you, it's very easy to fall into them. Consumerism is rampant throughout New Zealand (and the world) and keeps many working people poor. Credit cards, personal loans, BNPL and store cards are serious financial weapons people use against themselves unknowingly".
  • "Many New Zealanders manage their money just fine - but those who don't or can't generate billions of dollars of interest payments for banks and lenders. Please invest the time upfront and talk with your partner (if you have one) about what you want to spend money on. And above all else, please consider getting a budgeting app".

Our Friends Booster Offer Booster Savvy, Where You Can Save and Spend Smarter - We See It As Your Money's New Best Friend

  • Too much money is wasted by hard-working New Zealanders. Booster Savvy helps you take charge with a 3.75% p.a. return (net of fees, reviewed monthly) and tools to spot spending leaks and wasted money.
  • Unlike banks who push debt with credit cards, personal loans and expensive overdrafts, Savvy invests your money in the Booster Savvy Fund, offering growth and a Mastercard debit card for everyday use.

Why Savvy is valuable to minimise your everyday spending:
  • Spending analytics reveal trouble spots, and Savvy's app gives you the details you need to avoid wasting money. By seeing where your money goes and using features like Boost and Sweep to build savings and Safe to Spend that shows you how much you can safely spend before next payday, you can visualise where your money goes and make better decisions.
  • We believe the Savvy app offers unrivalled insights into helping you avoid wasting money by analysing your expenses.  
  • See how Savvy can help you understand your finances in our Savvy Review or at their website.​
Related Guides: