Refinance & Cash-Out Calculator
Estimate your new payment, available cash, and loan-to-value position in one place.
What this refinance and cash out calculator does
A cash-out refinance replaces your current mortgage with a new, larger loan and gives you the difference in cash. This calculator helps you quickly answer the biggest questions: How much cash can I take out? What does the new monthly payment look like? How much equity will remain after the refinance?
You can use it for debt consolidation, home improvement planning, emergency reserve funding, or comparing a rate-and-term refinance versus a cash-out scenario.
Core outputs you get
- Maximum loan amount based on your selected loan-to-value (LTV) limit.
- Estimated maximum cash available after paying off the current balance and closing costs.
- New monthly mortgage payment using the new rate and term.
- Payment difference compared with your current mortgage payment.
- New LTV and remaining equity so you can see your post-refinance cushion.
How the math works
1) Maximum refinance loan
Lenders generally cap cash-out refinances to a percentage of your home's value. That limit is your maximum LTV. The calculator estimates:
Max Loan = Home Value × Max LTV
2) Maximum available cash
Before you receive any funds, the refinance must first pay off your existing mortgage and cover closing costs:
Max Cash Available = Max Loan − Current Balance − Closing Costs
3) Monthly payment estimate
The payment uses a standard fixed-rate amortization formula based on principal, monthly rate, and total number of payments. This gives you a consistent monthly principal-and-interest estimate.
Input guide: what each field means
Current home value
Use a realistic estimate based on recent comparable sales or an appraisal estimate. A higher value can increase available cash, but inflated assumptions can lead to unrealistic results.
Current mortgage balance
Use your most recent statement balance. Accuracy here is critical because this payoff amount directly reduces the cash you can pull out.
Interest rates and terms
The current and new rates, plus remaining and new loan terms, drive payment comparisons. Even with a lower rate, extending the term can still affect total lifetime interest.
Closing costs and desired cash
Closing costs are often 2% to 5% of the loan amount, depending on lender fees, title costs, taxes, and credits. Desired cash-out should be tied to a specific plan, not just "available borrowing room."
Example scenario
Suppose your home is worth $500,000 and your current mortgage balance is $280,000. If your lender allows 80% LTV, your estimated maximum loan is $400,000. If closing costs are $6,000, your maximum potential cash-out is roughly:
$400,000 − $280,000 − $6,000 = $114,000
If you request $40,000 in cash, your new estimated loan amount becomes $326,000, and your payment is calculated using your new interest rate and term. The calculator shows that side-by-side against your current payment so you can compare trade-offs.
When a cash-out refinance can make sense
- Funding value-adding home renovations (kitchen, bath, structural upgrades).
- Consolidating high-interest debt when spending behavior is under control.
- Replacing variable-rate debt with stable, fixed-rate mortgage financing.
- Creating liquidity while keeping payment manageable and equity healthy.
Risks and trade-offs to watch
- You reset your amortization clock: Longer terms can increase total interest over time.
- Your home secures the debt: Unsecured debt moved into a mortgage becomes foreclosure risk.
- Equity drops: Higher loan balances reduce flexibility if home prices soften.
- Fees matter: Closing costs and rate structure can erase benefits if not modeled carefully.
How to improve your refinance numbers
Shop multiple lenders
Compare APR, not just note rate. Fees, points, and credits can materially change true borrowing cost.
Improve credit profile before applying
Lower utilization, on-time payments, and reduced revolving balances can improve pricing and eligibility.
Keep some equity in reserve
Even if you can borrow to the maximum, leaving a stronger equity buffer helps reduce risk and improves long-term options.
Quick FAQ
Does this include taxes and insurance?
No. The calculator estimates principal and interest only. Your total monthly housing payment may include property tax, homeowners insurance, HOA dues, and mortgage insurance.
Is maximum cash-out guaranteed?
No. Final approval depends on underwriting factors like credit score, debt-to-income ratio, occupancy type, and appraisal results.
Should I always take cash if available?
Not necessarily. Borrow only for high-value uses and stress-test your payment. Available does not always mean affordable.
Educational use only. This page is not financial, legal, or tax advice.