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Payments & Amortization

Loan Offer Comparison Calculator for Mortgage Brokers Competing on Clarity

It compares two loan options on the same amount, each with its own rate and term, and returns both payments, both lifetime interest totals, which payment is lower and the interest saved with the cheaper option. For a broker, a borrower using it is usually holding two quotes or two terms and is close to choosing.

The borrower comparing two offers is already shopping; make sure one of the offers on the screen can be yours.

  • 5 inputs
  • 6 results
  • Included on every plan
  • 6 languages
Start free on Originator What the numbers tell you about the borrower
Live calculator

This is the calculator your visitors use. Enter numbers to see it work.

Payments & Amortization

When does a borrower sit down to compare two loan options?

Usually with two Loan Estimates on the table, or two scenarios from the same lender: a 30-year at one rate, a 15-year at a lower one. Sometimes it is a quote from a bank against a quote from a broker, a quarter point apart.

They want to know which is "better", and they suspect the lower payment and the lower cost are not the same thing. Most have also noticed fees, points and APRs that do not line up neatly, and feel out of their depth.

The emotion is a mix of momentum and fear of picking wrong on a decision they will live with for years.

How should a broker use a two-option comparison to win the conversation honestly?

Put it where shoppers land, on rate and quote pages, and treat submissions as hot: a borrower comparing two offers is weeks, not months, from deciding.

The lead shows the loan amount and both options' rates and terms, plus each payment, each total interest, the lower payment and the interest saved. On $400,000, Option A at 6.5% for 30 years is about $2,528 a month; Option B at 5.875% for 15 years is about $3,348. Lifetime interest is roughly $510,000 versus $203,000. Now you know whether this borrower is choosing a term, or choosing between lenders.

If both options are 30-year loans a quarter point apart, the payment gap may be around $65 a month, and the real question is what each offer charges to get there. That is where you add value: compare closing costs and discount points, then work out the break-even point against how long they expect to keep the loan. The mortgage points calculator does that math.

Never disparage the other offer. Show what the calculator leaves out, explain it plainly, and let the borrower see the comparison was fair.

What arrives in your CRM

What the numbers tell you about the borrower

  • Option A Rate (%)When Option A and Option B carry similar terms but different rates, the borrower likely holds two quotes. Ask for both Loan Estimates so you compare fees and points, not just rates.
  • Option B Term (years)A shorter term in Option B than in Option A means a term decision, not lender shopping. Talk about income headroom and goals rather than price, and check that the higher payment fits their DTI.
  • Interest Saved with Lower-Interest OptionA large figure here may push a borrower toward the shorter term even if the payment is a stretch. Make sure the decision includes reserves and job stability, not lifetime interest alone.
  • Lower PaymentIf the borrower keeps choosing the option with the lower payment despite higher interest, cash flow is their priority. Lead with payment certainty and total housing cost.

A first message that uses their numbers

What should the first message say to a borrower comparing offers?

Hi {first name}, I saw you compared two loan options on about {loan amount}. Payment and interest are a good start, but fees and points can change which one actually costs less. If you share the Loan Estimates, I will walk through them line by line with you, including how long it takes for any upfront cost to pay off.

Do not quote or imply a rate you cannot offer, and avoid comparative advertising claims about named competitors without compliance review.

Where this calculator earns its place

  1. 01

    Rate or "get a quote" page

    Rate shoppers arrive mid-comparison and want to test what they were offered.

  2. 02

    Refinance page

    Homeowners compare their current loan against a new one and need both totals side by side.

  3. 03

    Email to borrowers who received your Loan Estimate

    It invites them to compare transparently, which keeps the conversation with you.

Limits worth knowing

  • Fees, closing costs, points and prepayment terms are not included, so the cheaper option on screen may not be the cheaper loan.
  • Both options use the same loan amount; if one offer finances costs or uses a different down payment, the comparison is skewed.
  • Total interest assumes each loan is kept to full term; most are refinanced or paid off earlier.

Calculator disclaimer: Estimates only. A complete comparison should also weigh fees, closing costs and prepayment terms, not payment and interest alone. Confirm each offer with the lender.

Definitions in the calculator

Monthly payment
The fixed principal-and-interest amount due each month that repays the loan by the end of its term. The calculator shows it for both options and flags the lower one. A lower payment is not the same as a cheaper loan: a longer term can lower the payment while greatly increasing total interest.
Total interest
The sum of all interest paid over the life of each option if every payment is made on schedule. It is the clearest measure of the cost of borrowing between two offers with different rates and terms. For example, $300,000 at 6.25% over 30 years costs about $365,000 in interest; at 5.75% over 15 years, about $148,000.
Interest rate
The annual percentage the lender charges on the outstanding balance, before fees. Shorter terms often carry lower rates, which compounds their interest advantage. Comparing rates alone can mislead if one offer has higher fees or discount points, which is why the APR is also worth checking.
Loan term
The number of years over which the loan is scheduled to be repaid in full. A longer term spreads principal over more payments, which lowers each payment but increases total interest, because the balance stays outstanding longer. A shorter term does the reverse: higher payments, less interest overall.
Annual percentage rate (APR)
The yearly cost of borrowing including interest and certain lender fees and points, expressed as one rate. Lenders must disclose it, so it helps compare offers with different fee structures. This calculator compares the interest rates you enter; the APRs on the offers may rank them differently.
Closing costs
Fees and charges paid to finalize a loan, such as origination, appraisal, title and recording. They are not included in this comparison, which uses payment and interest only. An offer with a lower rate but higher closing costs may only come out ahead if you keep the loan long enough.
Discount points
Up-front fees paid to the lender to lower the interest rate; one point equals 1% of the loan amount. A lower-rate option may reflect points you would pay at closing. Paying points makes sense only if the monthly saving recovers their cost before you sell or refinance.
Break-even point
The time it takes for a lower payment or rate to repay the extra up-front cost of getting it, such as points or higher closing costs: extra cost divided by monthly saving. $3,000 of extra costs recovered at $100 a month breaks even in 30 months. Keeping the loan past that point is where the cheaper option actually pays off.

Terms on this page

Pairs well with

Mortgage Points Calculator

A borrower deciding whether to pay points is close enough to closing to be pricing the loan; meet them there.

APR vs. Interest Rate Calculator

The borrower comparing your quote to someone else's is already in the market; this tool lets them do the comparison on your site.

FAQ · 8 questions

Questions about this calculator

Does the option with the lower payment cost less overall?

Not necessarily. A longer term lowers the payment but stretches interest over more years. On $400,000, 30 years at 6.5% costs about $2,528 a month and roughly $510,000 in interest; 15 years at 5.875% costs about $3,348 a month but only about $203,000 in interest. The calculator flags both the lower payment and the interest saved.

How much does a quarter-point rate difference matter?

On a $400,000, 30-year loan, 6.5% versus 6.25% is about $65 a month, or roughly $23,500 of interest over the full term. That matters, but only if the lower-rate offer does not charge more upfront. If it costs $3,000 in extra points, the monthly saving takes around 46 months to recover it.

Why does the calculator compare rates and not APRs?

Because it calculates payments, which depend on the interest rate. APR folds certain fees and points into one yearly figure, so it is useful for ranking offers with different fee structures, and it may rank them differently from this calculator. Use both: the calculator for payment and interest, the Loan Estimate's APR and fees for full cost.

Should I always choose the shorter term if I can afford it?

Not automatically. A shorter term saves interest but locks in a higher required payment, which leaves less room for emergencies, savings and other goals. Some borrowers take the longer term and pay extra when they can, keeping flexibility. The right answer depends on income stability, reserves and how long you expect to keep the loan.

Why do borrowers who use this calculator make good leads?

Because comparison is a late-stage behavior. Someone entering two rates and terms usually has quotes or scenarios in hand and a timeline. The lead tells you both options they weighed, so your first call can address their real decision rather than starting from scratch with a generic rate pitch.

Can I use this to compare my offer against a competitor's?

You can show the payment and interest on both, but a fair comparison also needs fees, points, lender credits and closing costs from each Loan Estimate. Present the full picture factually, without criticizing the other lender, and have compliance review any marketing that compares your pricing to named competitors.

What does the lead look like in HighLevel?

On Producer and Brokerage plans the webhook posts JSON with the contact, every input (loan amount, both rates and both terms) and every result, plus UTM tags, click IDs, referrer and landing page as flat fields. You can map the option rates to custom fields and trigger a fast-response workflow, since comparison leads reward speed to lead.

Does the comparison work for refinances?

Yes, as long as both options use the same new loan amount. A homeowner can compare two refinance offers, or a 30-year against a 20-year. To compare against keeping the current loan, it is better to use a refinance calculator, which accounts for the remaining balance, current payment and closing costs.

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