A Nominal Interest Rate (NIR) is a fixed percentage agreed-upon as an additional amount to be paid during repayment of a loan, or that an entity pays when a certain amount of money is deposited there (for example, as a time deposit). It indicates the exact additional percentage that will be received for loaning the money. This rate does not include fees and commissions and is not necessarily annual, since it refers to the total investment.


In a mortgage loan, the monthly NIR is obtained by adding the margin applied by the bank to the euribor.

TIN = euribor (0.042% in January 2016) + margin (1.25%) = 1.292% NIR.

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