Calculate Mortgage Payoff: Free Calculator + Complete 2026 Guide

Use Our Free Mortgage Payoff Calculator

Want your payoff number in 30 seconds? Use our free interactive Early Mortgage Payoff Calculator. Enter five inputs and instantly see:

• Your current monthly payment
• Your accelerated monthly payment (with extra payments)
• Total scheduled payments over the loan term
• Total accelerated payments (with extra payments applied)
• Total interest savings from your acceleration strategy

The calculator handles three common scenarios:

• Estimate total payoff: Enter "0" for additional payment, plug in years remaining, hit Calculate. The "Total Scheduled Payments" output is your total payoff cost over the loan term.
• Model extra monthly payments: Enter an additional payment amount and see how many years and dollars you save.
• Compare different rates: Run the calculator at your current rate, then again at a hypothetical refinance rate, and compare total interest costs.

If you want to understand WHY the calculator returns the numbers it does — and how to verify them yourself — keep reading. The rest of this guide explains the math, the per diem interest method, and how to get an official payoff quote from your servicer.

What Is a Mortgage Payoff?

A mortgage payoff is the total amount of money required to fully satisfy your home loan on a specific date. It includes:

• Your current outstanding principal balance (what you still owe in actual loan amount)
• Accrued interest from your last payment through the payoff date
• Any servicer fees (recording, statement preparation, wire transfer, reconveyance)
• Prepayment penalties, if your loan has them (rare in 2026 for residential mortgages)

This number is fundamentally different from your "current balance" shown on monthly statements. The current balance reflects what you owed AFTER your last payment posted. The payoff amount reflects what you owe RIGHT NOW (or on a future date) — including the interest that has been accruing every single day since that last payment.

Knowing how to calculate mortgage payoff matters for several reasons:

• You're selling your home and need to know what closing costs to budget for
• You're refinancing and need to know exactly what the new loan must cover
• You're considering paying off the loan early with savings, inheritance, or business proceeds
• You're comparing the cost of paying off vs. continuing to invest the money elsewhere
• You want to track progress toward becoming mortgage-free

Most homeowners assume their payoff equals their current balance. It doesn't. The difference can be hundreds to thousands of dollars depending on your loan size and how many days have passed since your last payment.

Payoff Amount vs. Current Balance: The Critical Difference

This is the single most misunderstood concept in mortgage payoffs. Let's make it concrete.

Suppose you have a $300,000 mortgage at 6.5% interest. Your monthly principal-and-interest payment is $1,896. After 5 years of payments, your statement shows a current balance of $279,400.

What Your Statement Says

Current balance: $279,400

This is what you owed the moment your last payment posted on, say, the 1st of the month.

What Your Payoff Actually Is

If you wanted to pay off the loan today (15 days after your last payment), you owe:

• Current balance: $279,400
• Plus 15 days of accrued interest at 6.5% APR: ($279,400 × 0.065) ÷ 365 × 15 = $746.30
• Plus typical servicer payoff fees: $50-$100
• Actual payoff amount: ~$280,196

That's an extra $796 above your stated balance — and that gap grows every day until you actually pay it off.

Why This Matters

Many borrowers wire exactly their stated balance and are shocked when the loan isn't marked as paid. The servicer applies the wire to principal and interest as scheduled, but accrued daily interest keeps the loan technically open. You may incur additional days of interest plus fees for a second wire to clear the remainder.

Always request an official payoff quote from your servicer before sending funds, or use our payoff calculator to get a working number first.

The Mortgage Payoff Formula Explained

The mathematical formula for calculating remaining loan balance at any point during amortization is:

B = L × [(1+c)ⁿ - (1+c)^p] / [(1+c)ⁿ - 1]

Where each variable represents:

• B = remaining loan balance (the answer you want)
• L = original loan amount in dollars
• c = monthly interest rate (annual rate ÷ 12, expressed as decimal — so 6.5% becomes 0.065/12 = 0.005417)
• n = total number of monthly payments in loan term (30-year loan = 360 payments)
• p = number of payments already made

What This Formula Tells You

The formula calculates your remaining principal balance after a specific number of payments — assuming you've made every payment on time and made no extra payments. This is the "current balance" figure on your statement.

To convert this into your actual payoff amount, you still need to add accrued daily interest from your last payment date to your target payoff date, plus any servicer fees.

Why Most People Use a Calculator Instead

Honestly? Because it's mathematically intimidating. Our free Mortgage Payoff Calculator handles this formula automatically — you just enter loan amount, term, years remaining, additional payment, and rate. It returns your current monthly payment, accelerated payment, total scheduled payments, and total interest savings instantly.

The formula is most useful when:

• You want to verify your servicer's balance figures
• You're modeling future scenarios (what will I owe after 12 more payments?)
• You're building a custom spreadsheet for unique loan structures
• You're a finance professional or detail-oriented borrower who wants to understand the math behind the calculator

How to Calculate Mortgage Payoff (Step-by-Step)

Here is the practical 7-step method for calculating your mortgage payoff amount on any target date. This is the same method servicers use behind the scenes — and the same logic our payoff calculator automates.

1. Find your current loan balance. This is on your most recent mortgage statement, typically labeled "Principal Balance" or "Current Balance." Use the balance AFTER your last payment posted, not before.
2. Calculate your daily interest rate. Take your annual interest rate (the rate on your mortgage note, not the APR) and divide by 365. For a 6.5% loan: 0.065 ÷ 365 = 0.000178 or 0.0178% per day.
3. Calculate daily interest in dollars. Multiply your current balance by the daily interest rate. On a $279,400 balance: $279,400 × 0.000178 = $49.73 per day in interest.
4. Determine days until your target payoff date. Count from your last paid date to your planned payoff date. Servicers typically use exact days (not 30-day months).
5. Multiply daily interest by days. If you're paying off 15 days after your last payment: $49.73 × 15 = $745.95 in accrued interest.
6. Add accrued interest to current balance. $279,400 + $745.95 = $280,145.95 in principal plus interest.
7. Add any payoff fees. Recording fee, statement fee, wire fee, reconveyance fee. Typically $50-$300 total. Final payoff amount: ~$280,200-$280,450.

This calculation gives you a working number. For a transaction (like closing on a sale or refinance), always request an official payoff quote from your servicer — it's the only legally binding number and reflects any items you may not be aware of (escrow shortages, late fees, etc.).

Want this calculated automatically? Open our Mortgage Payoff Calculator. It runs all 7 steps instantly with your specific numbers.

Per Diem Interest: Why Your Payoff Changes Daily

"Per diem" is Latin for "per day." In mortgage terms, per diem interest is the daily amount of interest that accrues on your outstanding loan balance — every single calendar day, including weekends and holidays.

This is why your payoff quote from a servicer always specifies a "good through" date. After that date, the quote is no longer valid because additional per diem interest has accrued.

How Per Diem Is Calculated

Standard formula: Per diem = (Current balance × Annual interest rate) ÷ 365

Some servicers use 360 days instead of 365 (an "actual/360" convention common in commercial loans, rare in residential). Check your loan documents to confirm.

Real-World Per Diem Examples

This is why servicers stress urgency around payoff timing. A $500,000 mortgage costs you $99 every day you delay completing the payoff. Over a one-month closing delay, that's nearly $3,000.

Worked Example: Calculating a Real Payoff

Let's walk through a complete payoff calculation for a realistic 2026 scenario.

The Scenario

Sarah and David bought their home in Miami in June 2018 with a $400,000 mortgage at 4.50% on a 30-year fixed. They're selling now (May 2026) and need to know their payoff amount for the closing scheduled May 22, 2026.

Step 1: Current Balance

Their May 1, 2026 statement shows a current balance of $337,452.18 after their May payment posted.

Step 2: Daily Interest Rate

4.50% ÷ 365 = 0.01233% per day, or 0.0001233 as a decimal.

Step 3: Daily Interest in Dollars

$337,452.18 × 0.0001233 = $41.61 per day

Step 4: Days Until Payoff

From May 1, 2026 (last payment date) to May 22, 2026 (closing date) = 21 days

Step 5: Accrued Interest

$41.61 × 21 = $873.81

Step 6: Subtotal

$337,452.18 + $873.81 = $338,325.99

Step 7: Add Servicer Fees

• Statement preparation fee: $25
• Recording fee (Florida): $18.50
• Wire transfer fee: $25
• Total fees: $68.50

Final payoff amount: $338,394.49

Compare to Their Statement

Their May 1 statement showed $337,452.18. The actual payoff on May 22 is $338,394.49 — a difference of $942.31. If they had wired only the statement balance, the loan would not have been satisfied, and they'd need a second wire (with another wire fee and additional accrued days).

Verify with Our Calculator

Want to model your own scenario the same way? Our interactive payoff calculator runs the same math against your specific loan in seconds.

How to Get an Official Payoff Quote from Your Servicer

Your hand-calculated or calculator-generated payoff is useful for planning. The official servicer payoff quote is the legally binding number you actually use to satisfy your loan. Here's how to get one.

Who Requests the Quote

The party who needs the quote depends on the situation:

• Selling your home: Your closing attorney or title company orders the payoff. You typically don't need to handle this directly.
• Refinancing: Your new lender or title company orders the payoff from your existing servicer.
• Paying off independently (with savings, inheritance, business sale): YOU request the payoff directly from your servicer.

How to Request It

Contact your loan servicer (the company you make payments to, listed on your monthly statement). Most servicers accept payoff requests through:

• Online portal — fastest. Most major servicers have a "Request Payoff" button.
• Phone — call customer service and request a written payoff quote.
• Written request — by mail or fax. Required by some smaller servicers.

What to Specify

When requesting, you must specify:

• Target payoff date — typically 10-30 days from request
• Delivery method — fax, email, or mail (email is fastest)
• Recipient — yourself, your attorney, your title company

What the Quote Contains

An official payoff quote is a multi-section document specifying:

• Total payoff amount due
• "Good through" date (the quote's expiration)
• Per diem amount for any days beyond the good-through date
• Wiring instructions or check delivery instructions
• Required reference numbers
• Itemized breakdown of principal, interest, fees, escrow refund (if any)

Quote Timing

Request the quote 10-15 days before you need to use it. Don't request too early — quotes typically expire after 30 days. Don't request too late — wire transfers can take 1-3 business days to clear.

Mortgage Servicer Liability

Federal law (Real Estate Settlement Procedures Act, RESPA) requires servicers to provide accurate payoff statements. If a servicer's quote is incorrect and you wire the quoted amount, the servicer must accept that amount as full satisfaction even if their internal records say more is due. The CFPB oversees servicer compliance.

Calculating Early Payoff Scenarios

Many homeowners want to calculate early mortgage payoff scenarios — what would happen if they paid off the loan in 15 years instead of 30, or made an extra $200/month, or applied a $25,000 windfall to principal?

Our Early Mortgage Payoff Calculator is built specifically for this. Plug in your loan, enter an additional payment amount, and instantly see your total interest savings and accelerated payoff date.

Three Common Early Payoff Strategies

1. Lump-Sum Principal Reduction

Apply a one-time payment directly to principal. This reduces your balance immediately and eliminates all future interest that would have accrued on that amount.

Example: $400,000 mortgage at 6.5%, 30-year fixed, monthly payment $2,528. Apply a $50,000 lump sum in year 5. Result: loan pays off approximately 6 years and 4 months earlier, saving roughly $94,000 in total interest.

2. Extra Monthly Principal Payments

Add a fixed extra amount to each monthly payment, applied directly to principal.

Example: Same loan as above. Pay $2,528 + $250 extra = $2,778 monthly. Result: loan pays off approximately 6 years earlier, saving roughly $87,000 in total interest.

3. Biweekly Payment Schedule

Pay half your monthly payment every 2 weeks instead of the full payment monthly. Since there are 26 biweekly periods in a year, you end up making 13 monthly payments worth — one extra full payment annually.

Example: Same loan. Biweekly payment of $1,264 every 2 weeks. Result: loan pays off approximately 4 years and 8 months earlier, saving roughly $72,000 in interest.

The Math Behind Early Payoff Savings

Every dollar you apply to principal early eliminates compound interest on that dollar for the remaining loan term. The earlier you make extra payments, the more interest you save — because there's more remaining loan term for that interest to compound over.

This is also why lump sum principal reductions in year 1 of a loan are dramatically more effective than the same amount applied in year 20.

Common Payoff Fees to Watch For

The principal-plus-interest math is straightforward (and our calculator handles it). The fees lenders add to payoffs are where surprises hide. Here's what to expect.

Standard Servicer Fees

• Payoff statement fee: $0-$50. Some servicers charge for issuing the official quote letter.
• Recording fee (release of lien): $15-$200 depending on state. The servicer files a "satisfaction of mortgage" with your county recorder.
• Reconveyance fee: $50-$300. Common in deed-of-trust states (most western US states). Pays for clearing the trustee's interest.
• Wire transfer / check fee: $25-$50. Charged on funds delivery.
• Quick-payoff fee: $25-$100. Some servicers charge if you request a payoff for very short timelines.

Less Common but Possible

• Prepayment penalty: Rare on residential mortgages in 2026. If your loan has one, it's in your original loan documents. Typically expressed as a percentage of remaining balance OR equivalent to several months of interest.
• Escrow disposition fee: $25-$75. If you have an escrow account, the servicer must close it and refund any remaining balance to you separately. Some charge a small fee for this.
• Late fees: If any prior payment was late and the late fee wasn't collected, it can appear on the payoff.
• Forced-place insurance refund: If the servicer ever placed insurance on your behalf and the cost remained on your loan, that may need to be settled.

What to Watch For

Review your payoff quote line by line. If you see fees you don't recognize, ask the servicer to explain them. Some fees are non-negotiable (recording fees set by counties); others may be waivable.

Total Fee Budget

For a typical 2026 residential mortgage payoff, budget $50-$300 in total fees. Significantly higher fees are a red flag worth investigating.

7 Mistakes That Inflate Your Mortgage Payoff Amount

1. Using your statement balance instead of getting an official payoff quote. The most common error. Your statement balance is the snapshot from your last payment. The payoff includes accrued interest since then.
2. Not factoring in per diem interest for closing delays. If your closing pushes a week past the payoff quote's good-through date, you owe an additional 7 days of per diem interest.
3. Forgetting about escrow. If you have an escrow account, taxes and insurance reserves are separate from your loan balance. They're refunded to you after closing, but they're not part of the payoff.
4. Wiring funds on Friday afternoon. Wire transfers don't process over weekends. Friday-afternoon wires often don't post until Monday or Tuesday — meaning 3-4 extra days of per diem interest.
5. Missing a prepayment penalty. Read your original loan documents. While rare on 2026 mortgages, some older loans (pre-2014) and some non-QM loans have prepayment penalties of several thousand dollars.
6. Underestimating recording or reconveyance fees in deed-of-trust states. California, Texas, Arizona, and other states have higher recording costs than you might expect. Get the exact amount in writing.
7. Not requesting a payoff letter (proof of satisfaction). After paying off, the servicer should issue a satisfaction letter and file the lien release with your county. Verify both happen — undischarged liens cause problems years later when you sell or refinance.

Calculate Mortgage Payoff vs. Refinance Decision

Many borrowers reach this guide because they're weighing two options: pay off the mortgage entirely (using cash from a sale, inheritance, or business proceeds) or refinance to a better rate. Here's how the math works on each side.

Pay Off Entirely

Pros:

• Eliminate all future mortgage interest
• Free up monthly cash flow equal to your full P&I payment
• Reduce financial stress and simplify finances
• Build full home equity

Cons:

• Loses the tax deduction on mortgage interest (if you itemize)
• Reduces liquid cash you might need for emergencies, opportunities, or investments
• Loses potential investment returns on the cash if it could earn more elsewhere

Refinance to Lower Rate

Pros:

• Reduce monthly payment without using your cash
• Cash remains liquid for other uses
• If rate drops 0.75%+, savings can be substantial over time

Cons:

• Closing costs ($3,000-$10,000 typical) reset your equity build
• Resets amortization clock — you start at high-interest beginning of new schedule
• Doesn't eliminate the loan, only changes terms

The Math Decision Framework

Compare three numbers:

• Total interest you'd pay if you keep the current loan to maturity (use our payoff calculator with $0 additional payment to get this number)
• Total interest you'd pay on a refinanced loan plus closing costs
• Investment return you'd earn on the cash if not used to pay off (over the same horizon)

If paying off saves you more than your expected investment return: pay off. If keeping the cash invested would beat the mortgage interest savings: invest. If refinancing saves more than either alternative: refinance.

For a complete framework, see our refinance quote guide with break-even calculations.