Bookkeeping
Debits and Credits Explained Simply
Debits and credits are just a tidy way to record where money comes from and where it goes. This guide breaks down double-entry bookkeeping with real small-business examples so it finally clicks.
Published 1 August 2026 · 6 min read
The short answer
- Every transaction touches at least two accounts — one debit and one matching credit that keep the books balanced.
- Debit isn't 'bad' and credit isn't 'good'. They simply mean left side and right side of an entry.
- Debits increase assets and expenses; credits increase liabilities, equity, and income (and the opposite decreases them).
- The core rule: total debits must always equal total credits for every transaction.
- Modern software like Tallium posts both sides for you automatically, so you rarely have to think in debits and credits day to day.
What debits and credits actually mean
Forget everything your bank statement taught you. On a bank statement, 'credit' means money coming in and 'debit' means money going out — because the statement is written from the bank's point of view, not yours. In bookkeeping, the words mean something different and more neutral.
A debit is simply an entry on the left side of an account. A credit is an entry on the right side. That's it. Neither one is inherently positive or negative — whether a debit increases or decreases something depends on the type of account it lands in.
Once you stop reading 'debit = loss' and 'credit = gain', the whole system gets much easier.
Why every entry has two sides (double-entry)
Double-entry bookkeeping is built on a simple truth: money never appears or vanishes — it moves. If cash leaves your till, it went somewhere. If stock arrives in your shop, it came from somewhere.
So every transaction is recorded in at least two places: one account is debited and another is credited, for the same amount. This is what keeps your books balanced and makes errors easy to spot — if debits and credits don't match, something is wrong.
- One transaction, at least two accounts touched.
- Total debits always equal total credits.
- If the two sides don't balance, there's a mistake to find.
- This built-in check is why serious bookkeeping uses double-entry, not a single running list.
The one rule that ties it together
Behind the scenes, everything rests on the accounting equation: Assets = Liabilities + Equity. Debits and credits are just the mechanics that keep that equation true after every transaction.
Here's the cheat sheet worth memorising. It covers almost every entry a small business makes.
- Assets (cash, bank, equipment, inventory): debit to increase, credit to decrease.
- Expenses (rent, wages, supplies): debit to increase, credit to decrease.
- Liabilities (loans, supplier bills, tax owed): credit to increase, debit to decrease.
- Equity (owner's investment, retained profit): credit to increase, debit to decrease.
- Income/revenue (sales): credit to increase, debit to decrease.
Everyday examples that make it click
Let's walk through transactions a typical shop or café makes. Notice how each one balances — the debits and credits always equal each other.
- 1
You make a cash sale of 100
Debit Cash 100 (an asset went up). Credit Sales 100 (income went up). Money came in, and it came from a sale.
- 2
You buy stock for 200 on the card
Debit Inventory 200 (an asset went up). Credit Bank 200 (an asset went down). You swapped cash for goods on the shelf.
- 3
You pay the monthly rent of 500
Debit Rent Expense 500 (an expense went up). Credit Bank 500 (an asset went down). The cost is recorded and the cash is gone.
- 4
You take a 1,000 business loan
Debit Bank 1,000 (an asset went up). Credit Loan Payable 1,000 (a liability went up). Cash arrived, but you now owe it.
- 5
A customer pays a 300 invoice they owed
Debit Bank 300 (an asset went up). Credit Accounts Receivable 300 (an asset — what they owed — went down). No new sale; just collecting an old one.
How sales tax fits in
If your business is registered for a sales tax such as VAT, GST, or SST, tax adds a third line to a sale. Say you sell goods for 100 plus 15 tax: you Debit Cash 115, Credit Sales 100, and Credit a Tax Payable liability 15. That 15 isn't your income — it's money you're holding on behalf of the tax authority until you file your return.
This is general information, not tax advice. Rates, registration thresholds, and rules differ by country and change over time — confirm current requirements with your country's tax authority or a qualified local tax professional before relying on any figure.
Do you have to memorise all this?
Honestly, no. Understanding debits and credits is worth an afternoon because it demystifies your reports and lets you talk confidently with an accountant. But in daily life, you shouldn't be hand-writing journal entries.
Tallium's built-in accounting posts both sides of every transaction for you. When you ring up a sale on the POS, receive stock into inventory, scan an expense receipt, or reconcile the bank, the correct debits and credits are recorded automatically — and your tax line is calculated using your country's rules. Your job becomes reviewing clear reports, not balancing ledgers by hand.
Tallium is an all-in-one platform — POS, inventory, e-commerce, and accounting in one — priced per unit in USD and billed monthly, with no free trial. The accounting core is included in every unit, so the double-entry happens quietly in the background while you run the shop.
A quick way to check yourself
- Ask 'what did the business get?' — that account is usually debited.
- Ask 'where did it come from?' — that account is usually credited.
- Add up both sides: if they're equal, your entry is at least mathematically sound.
- If cash or bank moved, one side is almost always your Cash or Bank account.
- When in doubt, remember assets and expenses feel 'natural' as debits; income, liabilities, and equity feel 'natural' as credits.
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This article is general information, not tax or legal advice. Always confirm current rules with your country's tax authority or a qualified adviser.