On a statement
Statement period — The stretch of days that one statement covers, usually about a month. It runs from the day after the last statement closed to the day this one closes, and anything that posts inside those dates appears on this statement. It is not the same as a calendar month, so a statement period often starts partway through one month and ends partway through the next.
Closing date — The last day of the statement period, also called the statement date. Whatever you owe at the end of that day becomes the balance printed on the statement. Charges made after the closing date roll onto the next statement instead. The closing date is not the date your payment is due.
Due date — The date by which your payment has to reach the card issuer or lender to count as on time. It usually falls a few weeks after the closing date, and it is normally the same day each month. Paying after it can mean a late fee and the loss of any interest-free period.
Previous balance — The amount you owed when the last statement closed, carried forward as the starting figure on this one. Everything else on the statement is added to or subtracted from it. If you paid the last statement in full and on time, the previous balance is usually shown as settled by your payment.
New balance — The amount owed when this statement period closed, after purchases, fees and interest are added and payments and credits are taken off. It is also called the statement balance. It is a snapshot of one moment, so it is normally not what you owe by the time you read it.
Minimum payment — The smallest amount the lender will accept by the due date to treat the account as up to date. It is often a small percentage of what you owe, or a set floor amount, whichever is larger. Paying it keeps the account current, and the part you do not pay stays on the account and is charged interest.
Available credit — How much more you can still put on the account right now, worked out as the credit limit minus what you have already used. Charges that are still pending usually count against it too. It moves up and down through the month, so it is not a fixed number and it is not the same as the credit limit.
Credit limit — The most the lender allows you to owe on the account at one time. It is set by the lender and can be raised or lowered later. Going past it can trigger a fee or a declined transaction, depending on the account.
Transaction date — The date you actually made the purchase or the payment was initiated. It is the date you would recognize, because it is the day you were in the store or clicked the button. It is often a day or more earlier than the date the amount hits your balance.
Posting date — The date the transaction was added to your balance by the bank or card issuer. Because it can be a day or several days after the purchase, the posting date is what decides which statement a transaction lands on. A purchase made at the end of a statement period can post after the closing date and appear on the following statement.
Descriptor — The line of text that identifies a transaction on your statement. It is usually the seller's billing name plus something like a city, a website address or an internal code. It is not always the name on the sign or the app you bought from, which is why a charge you made can look unfamiliar.
Reference number — A unique code the bank or card issuer attaches to a single transaction so it can be looked up later. It is what you quote when you ask about a charge or start a dispute. It is not your account number or your card number, and it identifies one transaction rather than the account.
How money moves
Pending transaction — A transaction your bank knows about but has not finished processing. It lowers the money you have available to spend, but it is not yet part of your posted balance, and the final amount or date can still change. Some pending items disappear on their own without ever becoming a real charge.
Posted transaction — A transaction that has finished processing and is now a permanent part of your account balance. It carries a posting date and appears on a statement. Once an item has posted, changing it takes a refund or a dispute rather than the charge simply falling away.
Authorization hold — When a seller checks that your money is there and asks your bank to set an amount aside before the real charge arrives. It is common at fuel pumps, hotels and car rentals, where the final amount is not known up front, so the held amount can be larger than what you end up paying. The hold drops off when the final amount is processed, or after a set number of days if it never is.
Settlement — The step where the money actually moves from your account to the seller's bank, after the earlier check that the money was there. It usually happens a day or more after the purchase and is what turns a pending item into a posted one. Until settlement happens, the amount can still change or the transaction can be dropped.
Direct debit — An arrangement where you give a company permission to collect money from your account on agreed dates, and the amount can differ each time. The term is standard in the United Kingdom and much of Europe, where the rules and the cancellation rights are set out formally. In the United States the same everyday job is usually done by an ACH debit, often called autopay. It is not a standing order, because here the company decides the amount. The refund rights differ. In the United Kingdom the Direct Debit Guarantee entitles you to an immediate refund from your bank if an error is made in collecting the payment. Across the euro area the equivalent scheme is SEPA Direct Debit, which carries an unconditional refund right for a set number of weeks after the collection. In the United States there is no equivalent no-reason right: an ACH debit can be pulled back only as an unauthorized one, and you have to report it within a limited window that your bank will state. Check which scheme applies before you rely on being able to reverse one.
Standing order — An instruction you give your own bank to send a fixed amount to the same recipient on a repeating schedule. It is a common term in the United Kingdom, Ireland and parts of Europe, and in the United States the same thing is usually called a recurring or automatic transfer. The payer sets the amount and can change or stop it, which is the main difference from a direct debit.
ACH — Short for Automated Clearing House, the United States system for moving money between bank accounts electronically. It handles direct deposit of wages, bill autopay and transfers between banks, and it works in batches, so a payment usually takes a business day or more even though same-day options exist. Other countries have their own national systems that do the same job under different names.
Wire — A transfer sent one at a time directly from one bank to another, usually arriving the same day or the next. It normally costs a fee, and once it has been sent it is hard to claw back. It is not the same as ACH, which is cheaper, grouped into batches and slower.
Chargeback — A formal dispute where you ask your card issuer to reverse a card payment, and the money is pulled back from the seller's bank. It is used when something is wrong, such as goods never arriving or a charge you did not make, and there are deadlines and evidence involved on both sides. It is not the same as asking the seller for a refund, because the card issuer takes the money back rather than the seller sending it.
Refund versus reversal — A refund happens after a charge has already posted: the seller sends money back as a separate credit, which appears as its own line on your statement, often days later. A reversal cancels the original transaction before it finishes processing, so the charge never posts and it usually just vanishes from your pending list. The quick test is which list the item is on: a refund arrives on your statement, a reversal never gets that far. The word is also used for a provisional credit being taken back after a dispute, and that does add a line.
Merchant category code — A four-digit code that describes what kind of business a seller is, assigned when the business is set up to take card payments. Card issuers use it to sort your spending into categories and to decide things like rewards or which purchases a rule applies to. It describes the business, not the individual items you bought, so a purchase can be filed under a category that looks wrong for what was actually in the basket.
Cards and borrowing
Annual percentage rate — The yearly rate used to work out what borrowing costs you, written as a percentage so different offers can be compared on the same basis. On a credit card the interest is usually worked out daily or monthly from that yearly rate rather than charged once a year. One card can carry several rates at the same time, with different ones for purchases, cash advances and balance transfers.
Grace period — The window between the closing date and the due date during which you can pay the statement balance in full and be charged no interest on those purchases. On most cards the grace period stops applying once you start carrying a balance from month to month, and it returns only after the balance is cleared. It normally does not cover cash advances, where interest starts right away.
Cash advance — Using a credit card to get cash, at a machine, over a counter, or through transactions the issuer treats as cash-like. It usually costs a fee straight away, is charged a higher rate than purchases, and starts accruing interest from the day it is taken with no interest-free window. Some everyday transactions are classed as cash advances even though they do not feel like withdrawing cash.
Balance transfer — Moving what you owe on one card onto another card, often at a low or zero promotional rate for a fixed number of months. There is usually a fee, charged as a percentage of the amount moved, and the promotional rate ends on a set date after which the normal rate applies. A transfer moves debt from one place to another rather than reducing it.
Foreign transaction fee — An extra charge some card issuers add when a purchase is handled in another country or in another currency, usually a small percentage of the amount. It sits on top of the exchange rate used to convert the purchase, so it is a separate cost from the rate itself. It can apply to online orders from a seller based abroad even when you never left home.
Revolving balance — The part of a card balance you did not pay off, which rolls into the next statement period and is charged interest. It is called revolving because the amount rises and falls as you spend and pay rather than being a fixed loan with an end date. Carrying one is also what usually switches off the interest-free window on new purchases.
Statement balance versus current balance — The statement balance is what you owed on the closing date, and it is frozen from then on; it is the figure the due date and the interest-free window are tied to. The current balance is live and changes every time a new charge posts or a payment lands, so partway through a month the two are usually different. Paying the current balance is not the same as paying the statement balance, and only the statement balance decides whether this period is treated as paid in full.
Budgeting words
Fixed cost — An expense that is about the same amount each time and arrives on a predictable schedule, such as rent, a subscription or an insurance premium. Fixed refers to how predictable the amount is, not to how hard it is to cancel or change. A fixed cost can still be adjusted occasionally, for example when a yearly price rise takes effect.
Variable cost — An expense that comes back regularly but changes in size, such as groceries, fuel or a utility bill. You can count on it happening; you cannot count on the amount. It is not the same as discretionary spending, because a variable cost can be something you cannot go without.
Discretionary spending — Money spent on things you choose rather than things you have to cover, such as eating out, entertainment or shopping beyond the basics. Where the line falls is personal and depends on your situation, not on the size of the amount. A small regular treat is discretionary; a large essential repair is not.
Sinking fund — Money put aside a little at a time for a specific expense you know is coming but that does not arrive monthly, such as an annual insurance bill, a car service or holiday gifts. The point is to spread a lump sum across several months so it does not land all at once. It differs from an emergency fund, which is for things you did not see coming.
Envelope method — A way of budgeting where income is split between named categories, each with its own limit for the period, and spending in a category stops when that category runs out or money is moved in from another one. It began as physical cash kept in labeled envelopes and is now usually done with numbers rather than notes. What controls your spending is the category limit rather than the balance in your account.
Zero-based budget — A plan where every unit of income is given a job, whether that is spending, saving or paying down debt, until none of it is left unassigned. The zero refers to having nothing unassigned on paper, not to having nothing left in your account. Money assigned to savings still counts as assigned.
Rollover — Carrying an amount in a budget category from one period into the next, so what you did not spend is added to next period's limit. Some plans also roll overspending forward, reducing next period's limit by the amount you went over. Whether rollover happens at all depends on the rules of the budget you are using.
Net versus gross income — Gross income is the full amount before anything is taken out, and it is the figure usually quoted in a job offer or on a loan application. Net income, often called take-home pay, is what actually lands in your account after tax, retirement or pension contributions, and other deductions. Budgets are normally built on net income, because that is the money you can actually move.
Safe-to-spend — A figure some budgeting tools show for how much you can spend today without breaking your plan, worked out by taking the money you actually have, subtracting what is already committed before money next arrives, and dividing what is left across the days in between. What counts as committed varies, so the number is only as good as the list behind it. Some tools show a period total rather than a daily one, so check which you are looking at, and it is not the same as your account balance.
Bank connections
Open banking — An arrangement where your bank passes information about your account to a service you have chosen, through a dedicated connection the bank provides for that purpose, and only for what you have agreed to. You approve the connection with your bank, and you can normally withdraw that permission later. How it works differs by country: in the United Kingdom and the European Union it is set out in regulation, while elsewhere it has grown through agreements between banks and the services that connect to them, so the range of data covered varies.
Screen scraping — An older way of getting account data, where you hand a service your online banking username and password and it signs in as you and copies what it can read from the pages. It is not open banking, because the bank has not provided a dedicated channel and is not part of the arrangement. It tends to break when a bank changes its website, and it is still used in places where a dedicated connection is not available.
Read-only access — A connection set up so that it can look at information such as balances and past transactions, but cannot move money, make payments or change anything about the account. The term describes the scope of what the connection is permitted to do. It says nothing about what a service does with the data once it has it, which is a separate question covered by that service's own terms.
Tokenized access — A setup where a connection uses a token, a long string issued when you approve access, in place of your banking username and password. The token stands for a specific permission, usually expires after a set time, and can be withdrawn without changing your banking password. A token is not a password, and on its own it says nothing about what data a service has asked for.