financial-calcs/dist/mortgage/amortization.d.ts

Reusable financial calculation library for FERS, Social Security, retirement savings, and mortgage amortization

export interface MortgageAmortizationInput {
    loanAmount: number;
    annualRate: number;
    termYears: number;
    startDate?: Date;
    extraPayment?: number;
}
export interface AmortizationRow {
    year: number;
    month: number;
    date: string;
    payment: number;
    principal: number;
    interest: number;
    balance: number;
}
export interface YearlyAmortizationRow {
    year: number;
    month: number;
    date: string;
    payment: number;
    principal: number;
    interest: number;
    balance: number;
}
export interface MortgageValidationError {
    field: keyof MortgageAmortizationInput;
    message: string;
}
export declare function validateMortgageInput(input: MortgageAmortizationInput): MortgageValidationError[];
export declare function calculateMortgageAmortization(input: MortgageAmortizationInput): AmortizationRow[];
export declare function groupByYear(rows: AmortizationRow[]): YearlyAmortizationRow[];
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