installment(redirected from instalments)
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A payment made as part of a series of payments on the same good, service, or obligation. For example, if one buys expensive consumer goods (such as furniture), one may agree with the seller to pay in installments until the furniture is paid in full. Likewise, one also makes installment payments on loans. Installments may or may not require interest to be paid.
A partial payment on a financial obligation. For example, an annual or monthly payment to the seller of an asset, such as a farm, on a long-term contract is an installment. Installments are composed partly of principal and partly of interest. If all the installments are of equal size, each subsequent payment incorporates an increasing amount of principal and a decreasing amount of interest.