Updated: August 2026
Money in and money out, in plain terms
On a bank or card statement, money in and money out are the two directions value can move. Money in covers anything that adds to what you hold: a salary or invoice payment landing in your account, a refund from a returned purchase, an interest payment, or a transfer someone sent you. Money out covers anything that reduces it: a card purchase, a cash withdrawal, a standing order, a fee, or a transfer you sent elsewhere. Every line on a statement or exported file is one or the other — the terminology just changes depending on which document you're looking at.
Why your statement says "debit" and "credit" instead
Many statements and export files don't use the words "money in" and "money out" directly. Instead they use debit and credit, and this is where a lot of the confusion starts. From the point of view of your own account, a credit is money added to it — money in — and a debit is money taken out of it — money out. That can feel backwards if you're used to hearing phrases like "credit card debt", where "credit" sounds like something you owe rather than something you have. Formal double-entry bookkeeping defines debit and credit more precisely again, based on the type of account affected and whether it's increasing or decreasing — a set of rules this guide is not attempting to teach. What follows is only about reading these words as they appear on a bank or card statement or an exported file, not general accounting theory, and it isn't a substitute for advice from an accountant or bookkeeper if you need it.
How this shows up in a statement or CSV file
Bank statements, and the CSV or Excel files produced from them, typically use one of two layouts to record this. The first is a single signed Amount column, where every transaction is one number: often a positive value means money in and a negative value means money out, though some banks and export tools reverse that convention, so it's worth checking rather than assuming. The second is two separate columns, usually labelled Debit and Credit: a purchase or withdrawal is placed in the Debit column, and a deposit or payment received is placed in the Credit column, with normally only one of the two populated on any given row. If you need to convert a file between these two layouts, see our guide on debit and credit columns vs a signed amount column, which walks through the column-by-column conversion in detail.
Credit cards: charges, payments and credits
Credit card statements add a further layer of their own vocabulary. Instead of money in and money out, they typically group activity into Charges and Payments/Credits. A charge — a purchase, a cash advance, or an interest charge — increases what you owe, similar in effect to money out. A payment or credit — a payment you made toward the balance, or a refund from a merchant — reduces what you owe, similar in effect to money in. These usually tie together as Previous Balance + Charges − Payments/Credits = Current Balance. A refund showing as a "credit" on a card statement doesn't mean cash has landed in a bank account; it means the amount you owe has gone down.
How to tell which is which in your own file
When a file's column headers don't make the direction obvious, a short check is more reliable than guessing:
- Read the column headers first — "Amount", "Debit", "Credit", "Charge" and "Payment" can each behave slightly differently between banks and export tools.
- Find one transaction you recognise on each side — a purchase you remember making, and a deposit or payment you remember receiving — and see which column or sign each one lands in.
- Compare the overall change across the file to the statement's own opening and closing balance; the reading that produces the correct balance change is the right one.
A worked example
Suppose a personal account statement for a given month includes two lines: a 4.50 purchase at a fictional shop called "Riverside Coffee Bar", and a 1,200.00 salary payment from a fictional employer called "Northwind Traders". In a signed-amount file, these might appear as -4.50 and +1,200.00 — money out and money in respectively. In a two-column file, the 4.50 would sit in the Debit column and the 1,200.00 in the Credit column. Either way, the coffee purchase reduced the balance and the salary payment increased it — the same real-world direction, just expressed through different column conventions.
Useful tools
To convert between these layouts, try Bank CSV Fixer, which can export either a signed-amount or a separate Debit/Credit column layout from the same file.
Common questions
Is a "debit" always money going out?
On a personal or business bank account statement, a debit usually represents money going out and a credit usually represents money coming in. Other documents, like credit card statements, use similar-sounding terms that don't map onto the same words in exactly the same way, so it's worth checking what a specific file or statement means before assuming.
Why does my credit card statement show a refund as a "credit"?
A refund reduces the amount you owe on the card, and that reduction is recorded as a credit. It has a similar practical effect to money coming into a bank account, even though no cash has actually been deposited anywhere.
My file only has one Amount column and no explanation of the sign. What do I do?
Check the sign against a transaction you already recognise, such as a purchase you remember making, and compare the overall change in the file to the statement's own opening and closing balance before relying on the column for totals or bookkeeping entries.
Where can I get help converting between debit/credit columns and a signed amount?
See our guide on debit and credit columns vs a signed amount column for the column-by-column conversion steps, or use Bank CSV Fixer to convert a file directly in your browser.