Mortgage Planning Workspace

Mortgage Calculator

Tune the loan on the left, keep the payment story visible on the right, and use quick-pick sliders to compare realistic scenarios faster.

Loan Details
Edit the scenario here. The form expands naturally as you reveal advanced costs.
$400,000
$

Move in $25k steps or jump to a common price point.

Current cash in

$80,000

20.0%
$

Use the mode toggle to work in dollars or percent. Hitting 20% usually removes PMI.

6.500%
%

Try nearby rate scenarios to see the payment difference instantly.

30 years

Simple view focuses on the loan itself.

Monthly payment currently includes principal and interest only. Switch to advanced costs to add property tax, insurance, HOA, and PMI.

Estimated Monthly Payment
$2,023
30-year fixed scenario

Loan amount

$320,000

Down payment

$80,000

Rate

6.50%

Down

20.0%

Interest

$408,142

Total principal + interest

$728,142

PMI status

No PMI needed at this down payment

Loan Insights

Total Interest

$408,142

Interest paid over the full life of the loan.

Total Cost of Loan

$728,142

Principal plus interest across 30 years.

With a 30-year fixed loan at 6.50%, you borrow $320,000 and pay about $408,142 in interest over time.

Common Mortgage Terms

Understanding these terms makes it easier to compare scenarios with confidence.

Principal and Interest

The total monthly payment that includes both the principal repayment and the interest charged on the loan. Calculated using the formula: M = P[r(1 + r)^n] / [(1 + r)^n – 1], where M is the total monthly mortgage payment, P is the loan amount, r is the monthly interest rate, and n is the number of payments.

Property Taxes

Taxes assessed by the local government based on the property's value. Typically calculated as a percentage of the property's assessed value and paid annually or semi-annually. Monthly property tax can be estimated by dividing the annual tax amount by 12.

Home Insurance

Insurance that protects the homeowner from financial loss due to damage to the home or personal property. The cost can vary based on coverage and location, typically calculated annually and divided by 12 for monthly payments.

Loan-to-Value (LTV) Ratio

This is the ratio of the mortgage loan amount to the appraised value of the property. A lower LTV generally means a lower risk for the lender.

Debt-to-Income (DTI) Ratio

This ratio compares an individual’s monthly debt payments to their gross monthly income. It helps lenders assess the borrower’s ability to manage monthly payments and repay debts.

Fixed-Rate Mortgage

A mortgage with a fixed interest rate for the entire loan term. It provides consistent monthly payments, making budgeting easier for property owners.

Adjustable-Rate Mortgage (ARM)

A mortgage with an interest rate that may change periodically, usually based on an index, which could affect the monthly payments.

Amortization

This is the process of paying off a loan over time through regular payments, with a portion going toward interest and the rest reducing the principal balance.

Private Mortgage Insurance (PMI)

Insurance required by lenders when the borrower has a down payment of less than 20% of the property’s value. It protects the lender in case of default.

Principal

The amount of money borrowed to purchase the property. This is the base on which interest is calculated and repaid over time.

Interest Rate

The cost of borrowing the principal, expressed as a percentage. It determines the amount of interest paid over the life of the loan.

Escrow

An account held by a third party where funds are set aside for specific purposes, such as property taxes and insurance, ensuring these are paid on time.

Prepayment Penalty

A fee that some lenders charge if a borrower pays off the mortgage early, compensating the lender for the loss of interest.

Annual Percentage Rate (APR)

The APR represents the total cost of borrowing on a yearly basis, including interest and additional fees or costs associated with the loan. It allows borrowers to compare the cost of different loans more easily.

Down Payment

The upfront cash payment a borrower makes when purchasing a property. It is usually expressed as a percentage of the property’s value. A higher down payment typically reduces the loan amount and may eliminate the need for Private Mortgage Insurance (PMI).

Loan Term

The length of time over which the mortgage must be repaid. Common loan terms are 15, 20, or 30 years. A longer term usually means lower monthly payments but more interest paid over the life of the loan.

Closing Costs

Fees and expenses, other than the property price, that are incurred by the buyer and seller during the completion of a real estate transaction. These may include lender fees, appraisal fees, title insurance, and more.

Refinancing

The process of replacing an existing mortgage with a new loan, often to get a lower interest rate, change the loan term, or switch from an adjustable-rate to a fixed-rate mortgage.

Equity

The difference between the current market value of the property and the outstanding mortgage balance. As the loan is repaid and property value increases, the equity grows.

Points (Discount Points)

A form of prepaid interest that borrowers can purchase to lower the interest rate on their mortgage. One point typically equals 1% of the loan amount.

Balloon Mortgage

A type of mortgage that offers lower monthly payments initially because the full balance is not amortized over the term of the loan. At the end of the loan term, a large payment, or 'balloon payment,' is due.

Jumbo Loan

A mortgage that exceeds the conforming loan limits set by the Federal Housing Finance Agency (FHFA). These loans are typically used for luxury or high-cost homes and may come with stricter qualification requirements.

Good Faith Estimate (GFE)

A document that provides a detailed breakdown of the expected costs associated with the mortgage, including the loan amount, interest rate, closing costs, and other fees. It helps the borrower understand the full cost of the loan.

Debt Service Coverage Ratio (DSCR)

A measure used primarily for investment properties. It compares the net operating income generated by the property to the mortgage payments, helping lenders assess the risk of default.

Foreclosure

A legal process where the lender takes ownership of the property if the borrower fails to make the required mortgage payments, ultimately selling the property to recoup the outstanding loan balance.

Title Insurance

Insurance that protects both the buyer and the lender from potential legal claims or disputes over ownership of the property.

Mortgage Payment Calculator

A tool that allows borrowers to estimate their monthly mortgage payments based on variables like loan amount, interest rate, term, and down payment. It’s helpful in planning and budgeting for home purchases.