LeaseIQ Pro

Deterministic commercial equipment lease and finance calculator. Computes the exact periodic payment for equipment leases and equipment financing agreements: level payments, balloon, step-up/step-down, custom payment streams, interest-only periods, and skip/seasonal structures. Regression-tested aga

Newton-Raphson reverse solver for commercial equipment leases. Given a known target payment, solves for the unknown deal variable: the implicit interest rate (yield) buried in a quote, the term length, the residual value, or the present value of a payment stream. This is the tool for questions like

Generates the complete period-by-period amortization schedule for a commercial equipment lease or finance agreement: payment date, payment amount, interest portion, principal portion, and remaining balance for every period, plus totals. Supports all payment structures (level, balloon, step, skip/sea

Exact consumer car lease calculator using real captive-lender math: money factor rent charge, residual-based depreciation, state tax methods (monthly on payment, upfront on selling price, upfront on total lease, TAVT), fee capitalization, zero-drive-off iteration, and multiple security deposit (MSD)

Exact auto loan payment calculator for vehicle purchases. Computes monthly payment, total interest, total cost, and upfront cash for financed purchases, or the all-in cost for cash purchases. Useful together with calculate_auto_lease for lease-versus-buy comparisons.