What Are the Golden Rules of Accounting? | Practical Guide for Business Owners
Learn how the 3 golden rules of accounting apply to real-world bookkeeping. Essential insights for business owners managing or reviewing their books.
Justwise Accounting
3 min read


What Are the Golden Rules of Accounting — and Why Should Business Owners Care?
As a business owner, you don’t need to become an accountant — but you do need to understand how your money is moving. Whether you’re handling the books yourself or reviewing reports from your bookkeeper, understanding the golden rules of accounting can help you catch mistakes, ask the right questions, and make better decisions.
So, what are the golden rules of accounting, and how do they actually show up in a real business?
Let’s break it down in practical terms.
The Three Golden Rules — Explained for Business Owners
Accounting is built on a simple foundation: every transaction has a debit and a credit. These three “golden rules” guide how those entries are made. More importantly, they help you understand why a transaction appears a certain way in your reports or software.
1. Debit the Receiver, Credit the Giver
This rule applies when you're transferring value between people or entities.
In business terms, think of when you pay a supplier or receive funds from a loan.
When your business receives money, you credit the person or entity giving it.
When you give something of value (like paying a vendor), you debit the receiver.
Why this matters:
This helps you make sense of who owes who. If your supplier account doesn't balance or shows the wrong direction, this rule can help pinpoint the error.
2. Debit What Comes In, Credit What Goes Out
This applies to physical or monetary assets.
When you purchase stock, equipment, or tools, you’re bringing assets into the business. When you pay for them, that’s money going out.
Debit the asset coming in (e.g. a new laptop).
Credit the asset going out (e.g. cash or bank account).
Why this matters:
As a business owner, this rule helps you spot if assets are being properly recorded. If your books show low asset value despite recent purchases, this rule guides where to look for misclassification.
3. Debit All Expenses and Losses, Credit All Incomes and Gains
This is the one most business owners deal with daily.
When you pay for something — rent, software, wages — it’s an expense and is debited.
When your business earns money — from sales or interest — it’s income and is credited.
Why this matters:
This rule helps explain how your profit and loss statement is structured. If income looks overstated or expenses are missing, this is the rule to refer back to.
Why Business Owners Should Learn These Rules — Even If Using Software
Many business owners rely on software like Xero or MYOB to do the heavy lifting — and that’s smart. But accounting software only works properly when transactions are entered correctly. These golden rules can help you:
Understand journal entries or corrections made by your bookkeeper
Identify errors when reports don’t match your bank balance or real-world activity
Communicate clearly with your bookkeeper or accountant (and ask better questions)
Avoid incorrect coding when entering bills or income manually
Even when your books are outsourced, your name and your ABN are still attached to what’s submitted. Understanding the basic logic behind the numbers gives you more control and confidence.
A Common Mistake Business Owners Make
One of the most frequent issues we see is expenses being entered as assets, or vice versa. For example, purchasing a printer for $500 may be coded as an expense — but it should be treated as an asset. Understanding the second golden rule (“debit what comes in”) can help you question or verify how these items are treated in your records.
Similarly, understanding when income is credited vs when loans are credited helps you avoid mistaking cash injections for revenue — which could affect your tax position.
Final Thoughts
So, what are the golden rules of accounting? They’re simple guidelines that explain how every financial transaction should be recorded. But more than that, they’re a powerful tool for business owners.
By understanding these rules, you’re not trying to become a bookkeeper — you’re taking ownership of your business. You’re making sure that what you see in your books reflects what’s actually happening in your operations.
Whether you're doing your own books, reviewing reports, or just trying to improve your financial literacy, learning these principles can save you time, prevent misstatements, and build trust with your advisors.
If you’re ever unsure how your transactions should be recorded or why your reports look off, a qualified bookkeeper can help — and make sure these rules are always working in your favour.


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