Compound Interest

Business, Legal & Accounting Glossary

Definition: Compound Interest

Quick Summary of Compound Interest

When interest is applied to capital and accrued up until that particular date. For example, a £1,000 loan with 20% interest will have a balance of £1,200 after the first year, then £1,440 at the end of the second year.

What is the dictionary definition of Compound Interest?

Dictionary Definition

n. payment of interest upon principal and previously accumulated interest, which increases the amount paid for money use above simple interest. Thus, it can increase more rapidly if compounded daily, monthly or quarterly. The genius physicist Albert Einstein called compound interest man’s “greatest invention.” Most lenders agree.

Full Definition of Compound Interest

Compound interest is the payment of interest on both principal as well past accrued interest. The opposite of compound interest is simple interest. Without compound interest, a $100 savings account at 10% per year earns a flat $10 in interest each year. After 10 years that non-compound interest savings account is worth $200. With compound interest that same $100 savings account earns $10 in interest the first year, but earns increasing amounts of interest in each subsequent year. The reason is that with compound interest, interest is paid on the previous years’ interest. After 10 years our $100 savings account with compound interest is worth more than $259. Albert Einstein called compound interest the eighth wonder of the world.

Synonyms For Compound Interest

interest, compounded interest, rate, compounded, compounding

Cite Term

To help you cite our definitions in your bibliography, here is the proper citation layout for the three major formatting styles, with all of the relevant information filled in.

Page URL
Modern Language Association (MLA):
Compound Interest. Payroll & Accounting Heaven Ltd. July 11, 2020
Chicago Manual of Style (CMS):
Compound Interest. Payroll & Accounting Heaven Ltd. (accessed: July 11, 2020).
American Psychological Association (APA):
Compound Interest. Retrieved July 11, 2020, from website:

Definition Sources

Definitions for Compound Interest are sourced/syndicated and enhanced from:

  • A Dictionary of Economics (Oxford Quick Reference)
  • Oxford Dictionary Of Accounting
  • Oxford Dictionary Of Business & Management

This glossary post was last updated: 27th April, 2020 | 0 Views.