A liability is money you owe.
Why it sounds harder than it is
It is a legal word for debt, and it caught on partly because debt sounds worse.
On a balance sheet the two mean the same thing.
It also lands badly because outside finance the word describes a person who causes problems. On a form it describes a number and nothing else. Nobody is being called a liability. A loan is.
The word is doing accounting, not character assessment.
A concrete Australian example
A liability list for an ordinary Australian household: the mortgage, the car loan, whatever is sitting on the credit card, a buy now pay later account, and HECS.
HECS is the one that goes unlisted, because it comes out of your pay before you see it and never arrives looking like a bill. It is on your payslip, under a heading that does not use the word debt.
What it is not
- Not the same as an expense. Your electricity bill is an expense. The loan you took out to fix the roof is a liability. One repeats, the other has a balance
- Not a moral category. The word covers a mortgage and a store card equally, and says nothing about the terms of either
- Not permanent by definition. Most carry an end date, even when the date is further away than you would like. A revolving account like a credit card has none built in
- Not the same as your credit rating. Owing money and how that owing is reported are two different records
Related
Whatever each of these costs you is written down somewhere you are entitled to see. Most carry an interest rate. HECS carries indexation instead, which is why it never looks like one.