Loanmind

Refinance Analysis

Net Worth Impact Method

Use the Refinance Analysis Tool by LoanmindSM to calculate your true cost break-even point, along with how a refinance will impact your net worth over time.

Current Loan
$
$50K$50M
%
0%15%
yrs
1 mo40 yrs
$
$0$50K
New Loan (Refinance)
$
%
0%15%
yrs
1 yr40 yrs
$
Loan-related costs only, including points and lender credits
$
$0$1M
$
⚠ Note on payment differential: The payment differential above should never be used to calculate a cost break-even point. A mortgage payment consists of both principal and interest — only the interest component is a true cost. The principal portion is an asset that you actually retain - converting cash into equity in your home. The net worth analysis below accounts for this correctly.
Investment / Savings Rate
Enter the assumed annual rate of return for the Save/Invest column. The after-tax savings rate reflects the net return after tax on short-term investment or savings gains.
%
0%25%
Optional
For After-Tax Analysis
Interest deductibility applies only to the first $750,000 of loan balance (per current IRS rules). Enter your marginal federal tax bracket to see after-tax net worth impact.
Tax on investment gains applies regardless of itemization status.
%
%
%
The after-tax break-even is always longer than the before-tax break-even — the mortgage interest deduction proportionately reduces the effective cost of both loans, which narrows the interest savings between them and therefore extends the time required to recover loan related net closing costs (inc points/credits).
⚠ The new interest rate is not lower than the current rate. A refinance will not produce interest savings. Please review your inputs.
Input summary
Current Loan
Balance
--
Rate
--
Term
--
New Loan
Rate
--
Term
--
Net Closing Costs
--
⚡ Quick Adjust
New Interest Rate
--
0%15%
Before-Tax Savings Rate
--
0%25%
Net Closing Costs
--
$0$1M
NET RELATIVE IMPACT ON NET WORTH
How Best to Allocate Payment Differential
Custom Allocation
--
← All to Principal All to Save/Invest →
NET WORTH IMPACT  |  BEFORE-TAX
Shows the relative difference in net worth between refinancing and keeping your current loan in place, at each point in time.
Analysis Point
Life of Loan
Apply to Principal
Save / Invest
Custom Allocation
1 mo 10 yrs
Before You View Your Report
  • Your actual rate, payment, and costs could be higher. Get an official Loan Estimate before choosing a loan.
  • No APR is shown on this tool. For the APR on your specific loan, request a Loan Estimate from a licensed loan originator.
  • This report reflects only the figures you entered. It is not a rate quote, loan offer, or commitment from Loanmind or any lender.
  • This is not financial, tax, or legal advice. Consult a qualified professional before making a financing decision.
  • After-tax figures are estimates based on the tax assumptions you entered. They are not a substitute for personalized tax advice.
Loanmind
Results are estimates for informational purposes only. Consult a financial advisor for personalized advice.
Refinance Analysis Tool by LoanmindSM

Understanding the benefits of a refinance by analyzing its impact on your net worth over time.

Most refinance calculators answer a narrow question: will my monthly payment go down? The Refinance Analysis tool by LoanmindSM answers the question that actually determines whether refinancing is the right move — will it leave you wealthier, and at what point in time? It does this with a Net Worth Impact Method that accounts for the full financial picture, not merely the change in your payment.

The problem with conventional refinance math

Ask a typical calculator when a refinance “pays for itself” and it will divide your closing costs by your monthly payment savings. That answer is almost always wrong — and usually far too optimistic.

The reason is straightforward: a mortgage payment is not a pure expense. Every payment is split between interest and principal. Interest is a true cost — money that leaves your hands for good. Principal is not a cost at all; it is forced savings that converts cash into equity you still own. A break-even built on the total payment differential treats principal as if it were money lost, overstating the benefit of refinancing and distorting the timeline.

This tool never makes that mistake. It isolates the true interest cost of each loan and measures the refinance the way a sophisticated investor would — by its effect on your balance sheet.

Key principle.  The payment differential should never be used to calculate a break-even point. Only the interest portion of a payment is a real cost; the principal portion remains your equity.

The Net Worth Impact Method

Rather than reduce the decision to a single payment figure, the tool models how refinancing changes your overall net worth at any point in time. It weighs five distinct forces:

Relative equity
How the two loans differ in how quickly they build the equity you own.
Relative tax savings
The difference in deductible mortgage interest between the current and new loan.
Freed-up capital, invested
The future value of the cash a lower payment puts back in your hands.
Tax on investment gains
The drag that taxes place on those invested savings.
Opportunity cost of closing
What the dollars spent to refinance could have earned if left invested.

These are combined into a single, honest figure: the net change in your wealth from refinancing, shown across the life of the loan and at any custom point you choose.

Three ways to put your savings to work

A lower payment frees up cash each month, and what you do with that cash materially changes the outcome. The tool shows all three paths side by side:

Apply to Principal
Direct the monthly savings toward paying the new loan down faster, accelerating equity.
Save / Invest
Invest the monthly savings at an assumed rate of return and let them compound.
Custom Allocation
Split between the two on a sliding scale to model any blend of the strategies.

Seeing the strategies compared directly turns an abstract choice into a clear, numbers-driven one.

Before-tax and after-tax perspectives

The analysis begins before tax, for a clean comparison of the loans themselves. Entering your marginal federal bracket unlocks the after-tax view, which layers in the elements that quietly shape the real outcome: the mortgage interest deduction, applied to the first $750,000 of loan balance under current IRS rules; your itemization status; and your ordinary income tax rate applied to any gains on invested savings.

A nuance worth understanding.  The after-tax break-even is always longer than the before-tax break-even. Because the interest deduction lowers the effective cost of both the old and the new loan, it narrows the interest savings between them — and a smaller saving takes longer to recover your closing costs.

Reading the results

The tool reports a true-cost break-even — the point at which the genuine interest savings of the new loan recover its net closing costs, including points and lender credits. From there, you can examine the net worth impact at the life-of-loan horizon, or move the analysis-point slider to any month within the first ten years to see exactly how the picture evolves over your expected time in the home.

Results are estimates for educational and informational purposes only and are not financial, tax, or legal advice. Individual circumstances vary; please consult a qualified financial advisor before making refinancing decisions.  Refinance Analysis · Net Worth Impact Method — by LoanmindSM.

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​All Loan Analysis Tool results are estimates for educational and informational purposes only and are not financial, tax, or legal advice. Individual circumstances vary; past investment performance does not guarantee future results. Please consult a qualified financial advisor before making real estate financing decisions.
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