Real Estate & Mortgage Glossary
Understanding key terms is essential for making informed rent vs buy decisions. This glossary covers 28 important real estate and mortgage concepts.
Use these definitions alongside the calculator results so you can compare costs on the same terms. For example, understanding escrow, PMI, and points helps you estimate your true monthly payment.
If you want to see how a term affects your decision, try the rent vs buy calculator and adjust the assumptions.
Mortgage Basics
Amortization
The process of paying off a loan through regular payments over time. Each payment covers both principal (the original loan amount) and interest. In the early years of a mortgage, most of your payment goes to interest; over time, more goes to principal.
Principal
The original amount borrowed for a mortgage, not including interest. As you make payments, the principal decreases, building your home equity.
Interest Rate
The percentage charged by a lender for borrowing money. Mortgage rates can be fixed (same rate for the life of the loan) or adjustable (can change over time).
APR (Annual Percentage Rate)
The total yearly cost of borrowing, including interest rate plus fees. APR gives a more complete picture of loan costs than interest rate alone.
Fixed-Rate Mortgage
A mortgage with an interest rate that stays the same for the entire loan term, typically 15 or 30 years. Provides predictable monthly payments.
ARM (Adjustable-Rate Mortgage)
A mortgage with an interest rate that can change periodically based on market conditions. Often starts with a lower rate than fixed-rate mortgages but carries more risk.
Down Payment & Equity
Down Payment
The upfront cash payment made when purchasing a home, typically expressed as a percentage of the purchase price. A 20% down payment is traditional, but many loans allow less.
PMI (Private Mortgage Insurance)
Insurance required by lenders when your down payment is less than 20%. PMI protects the lender if you default. It adds to your monthly payment but can be removed once you reach 20% equity.
Equity
The portion of your home that you actually own—the difference between the home's market value and what you owe on your mortgage. Equity builds through principal payments and home appreciation.
LTV (Loan-to-Value Ratio)
The ratio of your mortgage amount to the home's value. An 80% LTV means you borrowed 80% of the home's value (20% down payment). Lower LTV often means better loan terms.
Costs & Fees
Closing Costs
Fees and expenses paid when finalizing a real estate transaction, typically 2-5% of the purchase price. Includes appraisal fees, title insurance, attorney fees, and lender fees.
Origination Fee
A fee charged by lenders to process a new loan, typically 0.5-1% of the loan amount. This covers the lender's administrative costs.
Points (Discount Points)
Upfront fees paid to lower your mortgage interest rate. One point equals 1% of the loan amount. Buying points makes sense if you plan to stay in the home long enough to recoup the cost.
Property Tax
Annual tax paid to local governments based on your home's assessed value. Rates vary significantly by location, from under 0.5% to over 2% of home value annually.
Escrow
An account held by your lender to pay property taxes and insurance on your behalf. Part of your monthly payment goes into escrow, and the lender makes payments when due.
HOA Fees
Monthly or annual fees paid to a Homeowners Association for maintenance of common areas and amenities. Common in condos, townhomes, and planned communities.
Rent vs Buy Analysis
Price-to-Rent Ratio
The ratio of home price to annual rent (home price ÷ (monthly rent × 12)). A ratio above 20 typically favors renting; below 15 typically favors buying. Used to compare the relative cost of owning vs renting.
Break-Even Point
The number of years you need to stay in a home for buying to be financially better than renting. Accounts for transaction costs, maintenance, and opportunity cost of the down payment.
Opportunity Cost
The potential return you give up by using money for one purpose instead of another. In rent vs buy analysis, it's what your down payment could earn if invested instead of tied up in home equity.
Total Cost of Ownership
All costs associated with owning a home: mortgage payments, property taxes, insurance, maintenance, HOA fees, and transaction costs when buying and selling.
Appreciation
The increase in a home's value over time. While historically homes appreciate around 3-4% annually on average, this varies significantly by location and market conditions.
Property Types
Single-Family Home
A standalone residential property designed for one family, with no shared walls. Typically offers more privacy and space but requires more maintenance.
Condo (Condominium)
A unit within a larger building or complex where you own the interior space but share ownership of common areas. Usually has HOA fees covering exterior maintenance.
Townhouse
A multi-story home that shares one or more walls with adjacent properties but has its own entrance. Often a middle ground between single-family homes and condos.
Market Terms
Market Value
The price a home would likely sell for on the open market. Determined by factors like location, condition, size, and recent comparable sales.
Assessed Value
The value assigned to a property by local government for tax purposes. Often lower than market value and updated periodically.
Appraisal
A professional assessment of a home's market value, required by lenders before approving a mortgage. Protects both buyer and lender from overpaying.
Comparable Sales (Comps)
Recent sales of similar properties in the same area, used to estimate a home's market value. Appraisers and real estate agents use comps to determine fair prices.
Ready to Calculate?
Now that you understand the terminology, use our calculator to see if renting or buying makes more sense for you.