XeVN Loan Schedule Calculator adds a responsive loan repayment calculator to any page via a shortcode. It uses the declining balance method common at Vietnamese banks: the principal is repaid in equal monthly amounts and interest is charged on the remaining balance.

Features

Equal monthly principal, interest on the declining balance
Two interest rates: a promotional rate for the first N months, then a normal rate
Summary: loan amount, monthly principal, total interest, total cost
Full month-by-month schedule, promotional months highlighted
Export the schedule to Excel (.xlsx)
Default values, title, currency label, color and disclaimer configurable in Settings Loan Calculator
Multiple calculators on the same page, each with its own defaults
All calculations run in the browser — works with page caching plugins
Display language switch: site default, Vietnamese or English (built-in Vietnamese)
Translation ready (translations via translate.wordpress.org)

Tiếng Việt: Công cụ tính lịch trả nợ theo phương thức dư nợ giảm dần (gốc trả đều, lãi tính trên dư nợ còn lại), hỗ trợ lãi suất ưu đãi giai đoạn đầu và xuất file Excel. Chèn vào trang bằng shortcode [xevn_loan_calculator]. Muốn hiển thị tiếng Việt: vào Settings Loan Calculator, chọn “Display language” là Tiếng Việt, hoặc dùng [xevn_loan_calculator lang="vi"].

The plugin is completely free. If it is useful to you, please consider making a donation.

Third-party library

The Excel export uses ExcelJS 4.4.0 (MIT license), bundled in assets/vendor/. It is only loaded when a visitor clicks the export button. The plugin does not contact any external service.