Financial Literacy• Published: September 2, 2026

Calculating Annual Percentage Rate (APR) on Small-Dollar eCheck Loans

Financial Review: eCheckPayday Research Desk • NACHA & TILA Compliance Audited

Truth in Lending Act (TILA) Regulation Z mandates that all consumer creditors disclose borrowing costs as an Annual Percentage Rate (APR) to facilitate cross-product cost comparisons.

1. The Formula for Short-Term APR

📐 APR Mathematical Calculation

APR = ((Total Finance Fees / Amount Financed) / Loan Term in Days) × 365 × 100

Financed SumFinance Charge FeeRepayment PeriodEffective Annualized APR
$300$4514 Days391.07%
$500$7514 Days391.07%
$1,000$10030 Days121.67%
$2,500$17590 Days28.39%
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Authored by the eCheckPayday Financial Desk

Our team analyzes automated clearing house (ACH) payment architectures, Check 21 Act settlement mechanisms, Truth in Lending Act disclosures, and state-level consumer credit statutes to deliver transparent, actionable financial research.