ANNUM definition in the Cambridge English Dictionary

If a business’s growth rate is 7% per annum, it means that the business is expected to grow by 7% each year. Find out more about how interest rates work on borrowing products. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. When it comes to contracts, per annum refers to recurring obligations or those that occur each year throughout an agreement. For example, if a bank charges an interest of 3% on a loan per annum, it means that you will need to pay an additional 3% of the principal amount every year until the end of the contract.

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  • To ascertain the number of basis points that a percent represents, multiply the percent by 100.

“Per annum” is a Latin term that translates to “by the year” or “annually” in English. It is commonly used in finance and a variety of other fields to express a frequency of an event or a rate of change on an annual basis. 50 basis points are the equivalent of 0.5 percentage points. If the Fed increased interest rates from 4.75% to 5.25%, you could say that interest rates rose 50 basis points.

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Its meaning in English has not really diverged at all, so it is basically just a snooty (or jargonistic) way to say year. Fewer people know the word, so it is probably a good word to use if you are trying to bury the truth of something under a blanket of obscure verbiage. Per annum is used in financial contexts to mean for each year. As kiamlaluno says, per annum is traditionally used more in financial contexts than per year, but these sentences show that per year is also perfectly acceptable.

To understand the practical usage of basis points, consider the following example. In May 2023, the Federal Open Market Committee (FOMC) increased the benchmark rate by 25 basis points, or 0.25 percentage points, to a range of 5% to 5.25%. The benchmark rate is what banks charge each other for overnight lending, which feeds into the rates consumers get.


In the bond market, basis points are used to refer to the yields that fixed income instruments pay investors. For example, if a bond yield spikes from 7.45% to 7.65%, it is said to have risen 20 basis points. For accounts that only use simple interest, you would only earn interest on the money you pay in, but not any previous interest.

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These example sentences are representative of the most common uses of these two phrases and, as one can see, there is no real difference between per annum and per year in usage. Per annum refers to a duration of one year, or on a yearly basis. The term is commonly used in regard to a sum due at intervals of one year or over the course of a year. As such, it is typically found in contracts involving the per annum amount of interest owed to a lender.

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With this move, money became more expensive to borrow. Another example involves a business charging its customers 1.5% per month on any past due balance. The monthly rate of 1.5% can be converted to 18% per annum by multiplying the 1.5% times 12 months in a year. It is a common phrase used to describe an interest rate. Often “per annum” is omitted, as in “I have a 4% mortgage loan.” or “This bond pays interest of 6%.”

Per annum is an accounting term that means interest will be charged yearly or annually. If the rate of interest is 10% per annum, then the interest charged for one year will be 10% multiplied by principal amount. For example, the interest to be paid after one year on a loan of Rs.

While you can earn interest on your savings, if you borrow money then you may have to pay interest on top of what you borrow. You will often have to pay interest on things like loans, credit cards and mortgages. The amount of interest you earn will depend on whether it’s simple or compound interest. This means that you earn interest on money you deposit as well as any interest you’ve previously earned.

The increase from 10% is either 50 basis points (which is 10.5%) or 500 basis points (which is 15%). The per annum interest rate refers to the interest rate over a period of one year with the assumption that the interest is compounded every year. For instance, a 5% per annum interest rate on a loan worth $10,000 would cost $500. A per annum interest rate can be applied only to a principal loan amount. So, whenever you see “per annum”, it is referring to something that happens each year or annually.

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