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Renovation Math Pro

Home Equity Renovation Financing Calculator

Home equity is the most common way to fund major renovations — but HELOC, home equity loan, and cash-out refinance each have different rate structures, payment profiles, and tax treatment. Choosing the wrong vehicle can cost thousands in unnecessary interest. This calculator models all three options side-by-side for your specific balance, current rate, and renovation timeline.

Launching next batch

Inputs coming in next batch

The full calculator is in active build. When it ships, you'll be able to model:

  • Current home value
  • Existing mortgage balance
  • Renovation budget (total needed)
  • Your current mortgage rate (for cash-out refi comparison)
  • Current HELOC and HEL rate quotes (or use market average)
  • Renovation timeline (draw period needed)
  • Federal marginal income tax rate (for after-tax cost calculation)
Results preview

Side-by-side comparison: HELOC vs Home Equity Loan vs Cash-Out Refi. For each: monthly payment, total interest paid, after-tax interest cost (accounting for deductibility), maximum available borrowing. Break-even: at what tax bracket does the deduction meaningfully change the comparison. Recommended option based on your inputs.

This panel reserves its final height now so there's zero layout shift when the live tool replaces the placeholder.
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Frequently asked questions

See methodology — how every calculator on this site is sourced and reviewed.

By Last updated

Founder & Editor, Bedrocka Tools

The information and tools on this website are for general educational purposes only and do not constitute financial, investment, legal, or tax advice. Consult a licensed professional for decisions specific to your situation.