THE NUMBER 1 MOST EFFECTIVE TACTIC FOR SAVING MONEY
The number 1 most effective tactic for saving money. What is it? First, some background:
Most New Zealand property investors spend a lot of time thinking about how to make money. They analyse rental yields, compare mortgage rates, review maintenance costs, and search for the next investment opportunity. Far fewer investors spend time thinking about how to save money.
Yet saving money often delivers a better return than investing money. If you save $1,000 by eliminating wasteful spending, you keep the entire $1,000. You don’t need the share market to rise, tenants to pay higher rent, or property prices to increase. The benefit arrives immediately.
So what is the number 1 most effective tactic for saving money?
According to Sarah McMurray’s book The One Most Effective Tactic for Saving Money:
“If you only want to do one thing to save money, then the most effective thing you can do is to track where every dollar is spent.”
It sounds almost too simple. However, this single habit can transform your financial position faster than most people realise. For New Zealand property investors, especially those who own their own home as well as one or more rental properties, this tactic can uncover thousands of dollars in hidden savings every year.

Why Most People Don’t Know Where Their Money Goes
Most people believe they have a good understanding of their spending. They know the amount of their mortgage payment. They know roughly what they spend on groceries. They know how much their rates bill costs. However, “roughly” is rarely accurate. Many households operate from assumptions rather than facts. Ask someone how much they spent on takeaway food last month and they’ll often underestimate the figure. Ask them how much they spent on subscriptions, impulse purchases, online shopping, or convenience spending, and the estimate becomes even less accurate.
Property investors often fall into the same trap. In fact, investors can find themselves even more vulnerable because they focus heavily on investment decisions while overlooking personal spending habits. A landlord may spend hours researching the best mortgage structure while completely missing $300 per month leaking out through habits they barely notice. This explains why the number 1 most effective tactic for saving money starts with awareness rather than budgeting.
You Cannot Manage What You Do Not Measure
Professional property investors measure everything:
- They calculate rental yields.
- They analyse cash flow.
- They track maintenance costs.
- They review mortgage interest rates.
- They compare insurance premiums.
Yet many people do not apply the same discipline to their personal finances. Imagine buying an investment property and never reviewing the bank account attached to it. No investor would do that! Yet many homeowners effectively do the same thing with household spending.Â
Tracking every dollar creates visibility. Visibility creates understanding. Understanding creates better decisions. Once you know exactly where your money goes, you gain the power to redirect it toward things that genuinely improve your financial future.
Why Tracking Every Dollar Works
Many money-saving techniques focus on specific expenses. One expert recommends reducing coffee purchases. Another suggests using cashback programmes. Someone else advises negotiating utility bills. Those tactics may help, but they all address symptoms rather than causes.
Tracking every dollar addresses the root issue. The process forces you to confront reality. You no longer rely on memory or assumptions. The numbers tell the story. Many people discover that the problem isn’t one big expense. The problem lies in dozens of small expenses that accumulate over time.
For example:
- $25 per week on takeaway coffee
- $20 per week on convenience snacks
- $35 per month on unused subscriptions
- $50 per week on impulse purchases
- $100 per month on dining out beyond the planned budget
None of these expenses seem significant individually. Combined, they can easily exceed $3,000 per year. For many investors, that amount could cover rates, insurance, maintenance, mortgage principal repayments, or managed fund contributions.
Property Investors Face a Unique Challenge
Many property investors assume they need more income. Sometimes they actually need better visibility. Consider a typical New Zealand couple who own their family home and one rental property.
Their financial life may include:
- A home mortgage
- An investment mortgage
- Insurance policies
- Property management fees
- Rates
- Repairs and maintenance
- KiwiSaver contributions
- Vehicle expenses
- Family spending
- Utility costs
Money flows in multiple directions every week. Without accurate tracking, small leaks become difficult to identify. A landlord might stress about increasing rental income by $20 per week while overlooking $200 per week of inefficient spending in their personal finances. Tracking every dollar often reveals opportunities larger than many rent increases.
The Hidden Cost of Lifestyle Creep
One of the biggest threats to wealth creation is lifestyle creep. Lifestyle creep occurs when spending rises as income rises. Many investors experience this after receiving pay increases, bonus income, rental income growth, or mortgage interest savings. Instead of directing additional cash toward investments, they gradually increase spending.
- They buy nicer cars.
- They dine out more frequently.
- They upgrade technology more often.
- They take more expensive holidays.
None of these choices are necessarily wrong. The problem arises when spending increases automatically without conscious decision-making. Tracking every dollar exposes lifestyle creep before it becomes entrenched. Many investors discover that income has risen significantly over several years while their savings rate has remained largely unchanged.
Every Dollar Has a Job
One useful way to think about money involves assigning every dollar a purpose.
Every dollar can perform one of several functions:
- Pay living expenses
- Reduce debt
- Build an emergency fund
- Invest for the future
- Fund discretionary spending
When you track every dollar, you start making deliberate choices. Instead of wondering where your money went, you tell your money where it should go. This shift in mindset often changes behaviour dramatically.
Investors begin asking better questions:
- Does this purchase align with my goals?
- Would I rather spend this money today or invest it for future growth?
- Is this expense providing real value?
These questions help strengthen wealth-building habits.
How Property Investors Can Track Every Dollar
The good news is that tracking spending has never been easier. Modern banking systems provide detailed transaction histories. Many people already possess most of the information they need. Start by reviewing the previous three months of spending.
Categorise every expense into groups such as:
- Groceries
- Dining out
- Mortgage payments
- Rates
- Insurance
- Fuel
- Entertainment
- Shopping
- Travel
- Property costs
- Investments
Do not judge the numbers initially. Simply gather the facts. The objective is awareness, not guilt. Once you understand where money actually goes, you can identify areas worth improving.
The Surprising Power of Small Savings
Many investors ignore small savings because they appear insignificant. This can prove expensive. Suppose you identify just $50 per week of unnecessary spending.
That equals:
- $2,600 per year
- $26,000 over ten years, before investment returns
If you invested those savings and earned reasonable long-term returns, the final value could become substantially larger.
Now imagine finding $100 per week. Or $200 per week. Many households can uncover these amounts once they start tracking accurately. The numbers become even more powerful when both partners participate.
Saving Money Creates Investment Opportunities
Most property investors understand leverage. They appreciate that small changes can create significant long-term outcomes. The same principle applies to personal spending. When you save money consistently, you create additional capital.
That capital can fund:
- Mortgage principal reductions
- Managed fund investments
- KiwiSaver contributions
- Rental property improvements
- Emergency reserves
- Future deposits
Many investors focus exclusively on generating more income while overlooking the income they already control. Tracking spending allows you to reclaim part of that income.
How KiwiSaver and Managed Funds Benefit
Many New Zealand property investors hold the majority of their wealth in property. While property can build substantial wealth over time, diversification also matters. Money saved through better spending habits can fund regular contributions into KiwiSaver or managed funds. Remember that KiwiSaver itself is a type of managed fund.
When investors contribute regularly, they benefit from:
- Professional investment management
- Diversification
- Compound growth
- Automatic investing discipline
Even relatively small amounts invested consistently can accumulate into meaningful balances over several decades. Tracking every dollar often reveals enough surplus cash to increase investment contributions without reducing quality of life.
Tracking Spending Strengthens Financial Confidence
Money worries often stem from uncertainty. People stress when they feel finances are out of control. Tracking every dollar replaces uncertainty with clarity.
You know exactly:
- What you earn
- What you spend
- What you save
- Where improvements exist
Clarity leads to confidence. Confidence leads to better decisions. Better decisions improve financial outcomes. Many investors report feeling less stressed after tracking spending, even before making any changes. Simply understanding the numbers creates a sense of control.
The Most Common Discovery
What do most people discover when they begin tracking every dollar? They usually find that spending aligns poorly with their priorities.
Many investors value:
- Financial freedom
- Early retirement
- Property ownership
- Family security
- Long-term wealth
Yet spending patterns often tell a different story. Money flows toward convenience, habits, and impulse decisions rather than stated goals. Tracking shines a light on these inconsistencies. Once visible, they become easier to address.
Why This Tactic Beats Most Financial Hacks
Financial media often promotes complicated strategies. People discuss advanced investing techniques, tax structures, cryptocurrency, and market timing. Those topics have their place.
However, many households would achieve better results by mastering the basics first. That’s why the number 1 most effective tactic for saving money remains so powerful. (Can you recall what it is? track where every dollar is spent).
It does not require specialised knowledge. It does not depend on market conditions. It does not require a large income. Anyone can do it! The process works because it changes behaviour at the source. Rather than treating symptoms, it addresses the decisions that shape financial outcomes every day.
The Number 1 Most Effective Tactic for Saving Money in Action
Let’s return to Sarah McMurray’s advice:
“If you only want to do one thing to save money, then the most effective thing you can do is to track where every dollar is spent.”
This simple habit explains why the number 1 most effective tactic for saving money continues to outperform many complicated financial strategies. How does the process work?
- When you track every dollar, you become aware of your habits.
- When you become aware of your habits, you make better decisions.
- When you make better decisions consistently, your financial position improves.
The process sounds simple because it is simple. Simple does not mean ineffective. In many cases, simple means powerful.
Summary
So what is the number 1 most effective tactic for saving money?
According to Sarah McMurray, it is to track where every dollar is spent.
For New Zealand property investors, this habit can reveal hidden spending leaks, prevent lifestyle creep, increase savings, improve cash flow, and create additional capital for investing. Whether you want to pay down your mortgage faster, build your KiwiSaver balance, invest in managed funds, or save for your next property purchase, tracking every dollar provides the foundation.
Many investors spend years searching for sophisticated wealth-building strategies while overlooking the simplest and most effective one. Before you focus on earning more, make sure you understand where your existing money goes.
Ready to Take Control of Your Money?
At EpsomTax.com we work with New Zealand property investors every day. We help clients understand their cash flow, improve profitability, and make better financial decisions for the future.
If you’d like help understanding your finances, structuring your investments, or improving your long-term wealth strategy, contact us today. A clearer picture of your money could become the first step toward greater financial freedom.
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