Mortgage Recast vs Refinance — Free Calculator Shows Which Saves More

You inherited $50,000. Or sold a side business. Or finally built up enough savings to make a dent in your mortgage. Now the question: recast or refinance?

Most people default to refinancing because it's the option they've heard of. But mortgage recasting — where you make a lump-sum payment and your lender recalculates your monthly payment at the same rate — costs $150-$300 in fees vs $6,000-$15,000 for a refinance. No credit check. No appraisal. Done in 1-2 weeks.

Compare both options side by side →

When Recasting Wins

Recasting beats refinancing when your current rate is already competitive. If you locked in at 3.5% in 2021 and today's rates are 6.5%, refinancing would actually increase your rate. A recast keeps your golden rate while lowering your payment.

The math: $300,000 balance at 3.5%, 25 years remaining. Recast with $50,000 lump sum → new payment drops $280/month. Recast fee: $250. Break-even: month 1. Total savings over remaining term: $84,000+.

Google Ads data shows "mortgage refinance calculator" gets 74,000 monthly searches at $4.76 CPC (DataForSEO, April 2026) — but most of those searchers would actually benefit more from a recast at today's rates.

When Refinancing Wins

Refinancing wins when you can drop your rate by 0.75%+ and plan to stay in your home past the break-even point. The closing costs are higher, but the compounding interest savings over 15-30 years can dwarf a one-time recast.

How the Calculator Works

Enter your current balance, rate, remaining term, lump-sum amount, recast fee, new refinance rate, new term, and closing costs. The tool calculates both scenarios and gives a clear verdict: "Recast saves $X" or "Refinance saves $X" with a full breakdown table.

All calculations run in your browser based on CFPB and Freddie Mac guidelines. No data leaves your device.

Try the free comparison tool →

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Originally published at https://tool.teamzlab.com?utm_source=blogger&utm_medium=article&utm_campaign=2026-05-mortgage-recast-vs-refinance-comparison

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