Finance-logic-js NPM

finance-logic-js

npm install finance-logic-js

const finance = require('finance-logic-js')

finance.GenAmortizationSchedule()

or (ES6)
import { GenAmortizationSchedule } from 'finance-logic-js'

This function generates an amortization schedule. The schedule is returned as a Javascript object.

The function accepts the following arguments:

amount (required): the starting principal amount of the loan
months (required): the number of whole months over which the loan extends
rate (required): the annual interest rate of the loan expressed as a percentage, e.g., 10.5
firstPaymentDate (optional): the date the first payment will be made
frequency (optional): the payment frequency, which can be any of the following: 12 - monthly 6 - half yearly none or one - only one payment at the end of the loan - typically don't mix this with balloonDate
balloonDate (optional): the date a balloon payment will be made. This date will be forced to earliest corresponding payment date. This date will be ignored if it is greater than the term (months) of the loan.
balloonPercent(required): The percentage of the principal amount that will be used as the balloon value

The return object contains an array, with each array element containing the following fields:

paymentNumber - the number for a payment
principle: the principal balance remaining at the end of the period
accumulatedInterest: the interest accumulate from all previous periods through this period
payment: the periodic payment the borrower is required to pay
paymentToPrinciple: the amount of the payment allocated to paying down the principal
paymentToInterest: the amount of the payment allocated to paying interest
date: the date of the payment for the period