Do I need to create an account to use the mortgage calculator?
No signup is required to start modeling mortgages immediately. You can create a free account later if you want to save your scenarios and sync them across devices.
Calculators · United States
Free mortgage modeling and affordability tools for homebuyers, homeowners, and investors
also on phones →
Get it on Google Play (opens in a new tab)Ahrefs Domain Rating set in type 25 Oct 2026, reset 25 Oct 2026.
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A free web-based mortgage calculator that models full amortization schedules, adjustable-rate mortgages, and refinancing scenarios with detailed payment

Iota-Home is a free mortgage modeling platform that goes beyond basic payment calculators. It shows users complete amortization schedules month-by-month over the life of a loan, with features for modeling adjustable-rate mortgages (ARMs), tracking extra payments, calculating PMI timing, and testing refinancing scenarios.
Users can adjust any loan parameter—interest rate, term, extra payments, or loan amount—and see results update instantly. The tool includes templates for common scenarios like first-time home buyer setups, refinance comparisons, early payoff strategies, and down payment choices.
Iota-Home also offers an Affordability Calculator for estimating home price ranges based on income and debt, a Compare Scenarios feature for side-by-side analysis, and Portfolio Analysis for tracking multiple properties. All work is saved to user accounts and syncs across devices. The tool is designed for planning and education, not financial advice, and calculations are estimates that users should verify with their lender.
Pricing model: Free
No signup is required to start modeling mortgages immediately. You can create a free account later if you want to save your scenarios and sync them across devices.
All calculator inputs stay in your browser unless you sign in to save them. Personal financial data is not transmitted unless you actively save your scenarios to your account.
No. Iota-Home is for planning and education only and does not constitute financial advice. Calculations are estimates that may vary by region and lender, and you should always verify details with your mortgage lender or financial advisor before making decisions.
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Iota-Home has a free listing. The owner can unlock the full profile with a paid launch for $5:
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