Mortgage Glossary: 60 Terms Every Homebuyer Needs to Know

The mortgage process introduces a flood of unfamiliar terminology that can make an already stressful experience feel even more overwhelming. This comprehensive glossary defines every significant mortgage term you're likely to encounter — from your first conversation with a lender through closing day and beyond. Bookmark this page and use it as your reference throughout the homebuying process.

A

Adjustable-Rate Mortgage (ARM)
A mortgage with an interest rate that is fixed for an initial period (3, 5, 7, or 10 years), then adjusts periodically based on a market index plus a margin. ARM names follow a pattern: a "5/1 ARM" has a 5-year fixed period, then adjusts annually. See our ARM vs Fixed-Rate guide.

Amortization
The process of paying off a loan through regular payments where each payment covers both interest and principal. Early payments are mostly interest; later payments are mostly principal. View a complete schedule with our Amortization Calculator.

Annual Percentage Rate (APR)
The true yearly cost of your loan, including the interest rate plus lender fees, expressed as a single annual percentage. APR is always equal to or higher than the interest rate. It's the best single number for comparing loan offers from different lenders.

Appraisal
An independent professional assessment of a property's market value conducted by a licensed appraiser. Required by virtually all lenders to confirm the home's value supports the loan amount. See our Home Appraisal guide.

Assumption (Assumable Mortgage)
The transfer of an existing mortgage from the seller to the buyer. Not all loans are assumable — VA and FHA loans typically are; most conventional loans are not. Assumable mortgages can be valuable when the existing rate is below current market rates.

B

Balloon Payment
A large lump-sum payment due at the end of a loan term, typically on shorter-term mortgages or commercial loans. For example, a 30/15 balloon mortgage has 30-year amortized payments but the remaining balance is due in full after 15 years.

Back-End DTI (Total DTI)
Your total monthly debt obligations (housing costs + all other debts) divided by gross monthly income. Most conventional lenders prefer this below 43%. See our DTI guide.

Bridge Loan
A short-term loan used to bridge the gap when you're buying a new home before selling your current one. Typically higher rates and shorter terms than conventional mortgages. Usually repaid when the existing home sells.

C

Cash-Out Refinance
A refinance where you borrow more than your current loan balance and receive the difference in cash. Uses your home equity. The cash can be used for renovations, debt consolidation, or other purposes.

Certificate of Eligibility (COE)
Documentation from the VA that proves you've met service requirements for a VA home loan. Required before applying for a VA mortgage. Most lenders can obtain your COE electronically during the application process.

Clear to Close (CTC)
The phrase indicating your loan has been fully approved and all conditions have been satisfied. CTC means you're cleared to proceed to the closing table. See our Closing Day guide.

Closing
The final step in a real estate transaction where title transfers from seller to buyer, all documents are signed, and funds are disbursed. Also called "settlement."

Closing Costs
Fees and expenses paid at closing, separate from the down payment. Typically 2–5% of the loan amount. Includes lender fees, title charges, appraisal, and prepaid items. See our Closing Costs guide.

Closing Disclosure (CD)
A standardized 5-page document your lender must provide at least 3 business days before closing, showing your final loan terms and all closing costs. Compare it carefully to your Loan Estimate.

Conforming Loan
A mortgage that meets the standards to be purchased by Fannie Mae or Freddie Mac — primarily size limits ($766,550 in most areas for 2024–2026). Loans above these limits are "jumbo" loans.

Contingency
A condition in a purchase contract that must be satisfied for the transaction to proceed. Common contingencies: inspection (buyer can exit if inspection reveals problems), financing (buyer can exit if they can't secure a mortgage), and appraisal (buyer can exit if appraisal comes in low).

D

Debt-to-Income (DTI) Ratio
Total monthly debt payments divided by gross monthly income, expressed as a percentage. The primary financial metric lenders use to assess affordability. See our DTI guide.

Deed of Trust
The legal document that pledges your home as collateral for the mortgage loan. Recorded publicly. Similar to a mortgage document — which term is used depends on the state.

Discount Points
Prepaid interest paid at closing to permanently lower your interest rate. One point = 1% of loan amount, typically reduces rate by ~0.25%. See our Mortgage Points guide.

Down Payment
The upfront cash portion of the purchase price paid by the buyer. The loan amount is the purchase price minus the down payment. See our Down Payment guide.

E

Earnest Money Deposit (EMD)
A good-faith deposit made by the buyer when submitting a purchase offer, typically 1–3% of the purchase price. Held in escrow. Credited toward the buyer's closing costs at closing. May be forfeited if buyer backs out without a valid contingency.

Equity
The portion of your home's value you actually own: Current Home Value − Outstanding Loan Balance. Equity grows as you pay down your loan and as the home appreciates in value.

Escrow
Has two related meanings: (1) The account where your servicer holds monthly tax and insurance contributions until bills are due. (2) The neutral third party who holds funds and documents during the period between contract and closing. See our Escrow guide.

F

Fannie Mae (FNMA)
Federal National Mortgage Association — a government-sponsored enterprise that purchases conforming mortgages from lenders, packages them into mortgage-backed securities, and sells them to investors. This secondary market activity provides lenders with funds to make new loans.

FHA Loan
A mortgage insured by the Federal Housing Administration. Lower credit score and down payment requirements than conventional loans. Requires both an upfront MIP (1.75%) and an annual MIP. See our FHA vs Conventional guide.

Fixed-Rate Mortgage
A mortgage where the interest rate never changes for the entire loan term. Your principal and interest payment is identical every month regardless of market conditions. See our Fixed-Rate Mortgage guide.

Forbearance
A temporary agreement with your servicer to pause or reduce mortgage payments during financial hardship. Missed payments must still be repaid. See our Forbearance guide.

Foreclosure
The legal process by which a lender takes ownership of a property when the borrower fails to make mortgage payments. The lender sells the property to recover the unpaid loan balance.

Front-End DTI (Housing Ratio)
Housing costs only (principal, interest, taxes, insurance, HOA, PMI) divided by gross monthly income. Most conventional lenders prefer this below 28%.

Freddie Mac (FHLMC)
Federal Home Loan Mortgage Corporation — similar to Fannie Mae. A government-sponsored enterprise that buys conforming mortgages from lenders, supporting the secondary mortgage market.

G–H

Gift Letter
A signed letter from a gift donor stating that down payment funds are a gift and do not need to be repaid. Required by lenders when any portion of the down payment comes from a gift.

Good Faith Estimate (GFE)
The predecessor to the Loan Estimate, used before October 2015. If you see this term, it refers to the old standardized cost disclosure form.

Home Equity Line of Credit (HELOC)
A revolving line of credit secured by your home equity. Variable rate. Draw period (5–10 years) then repayment period. See our Home Equity vs HELOC guide.

Homeowners Association (HOA)
An organization in planned communities that enforces rules and manages shared amenities, funded by member fees. HOA fees are included in DTI calculations and affect your affordability. Use our Mortgage Calculator to include HOA fees.

HUD-1 Settlement Statement
The predecessor document to the Closing Disclosure, used before October 2015. Itemized all costs at closing.

I–L

Index
The benchmark interest rate that variable-rate loans (ARMs, HELOCs) are tied to. Modern ARMs commonly use SOFR (Secured Overnight Financing Rate). The index rate + the lender's margin = your ARM rate.

Interest Rate
The annual cost of borrowing money, expressed as a percentage of the outstanding loan balance. Determines your principal and interest payment. Different from APR, which also includes fees.

Jumbo Loan
A mortgage exceeding conforming loan limits ($766,550 in most areas for 2024–2026). Stricter qualification requirements: higher credit score, larger down payment, more reserves. See our Jumbo Loan guide.

Loan Estimate (LE)
A standardized 3-page form lenders must provide within 3 business days of your mortgage application. Shows estimated loan terms, monthly payment, and closing costs. Your primary tool for comparing multiple lenders.

Loan Modification
A permanent change to your loan terms (interest rate, term, or principal balance) negotiated with your servicer to create a sustainable payment. Different from refinancing — modification doesn't require qualifying for a new loan.

Loan Origination Fee
A fee charged by the lender for creating (originating) your loan. Expressed as a percentage of the loan amount or a flat dollar amount. Appears in Section A of the Loan Estimate.

Loan-to-Value (LTV) Ratio
Your loan amount divided by the home's appraised value, expressed as a percentage. 80% LTV means you have 20% equity. LTV affects your rate, PMI requirement, and refinancing options.

M–P

Margin
The fixed percentage a lender adds to the index rate to calculate your ARM interest rate after the initial fixed period. Example: SOFR + 2.5% margin = your ARM rate.

Mortgage Insurance Premium (MIP)
The mortgage insurance required on FHA loans. Includes an upfront premium (1.75% of loan amount) and an annual premium (0.55–0.85%/yr). Annual MIP is typically lifetime for borrowers putting less than 10% down. See our Mortgage Insurance guide.

Origination Points
Points charged by the lender as compensation for making the loan — distinct from discount points (which reduce your rate). One origination point = 1% of loan amount paid as a fee with no rate benefit.

PITI
Principal, Interest, Taxes, Insurance — the four components of a full monthly mortgage payment. Our Mortgage Calculator includes all four (plus PMI and HOA).

Points (Discount Points)
Prepaid interest paid at closing to permanently lower your interest rate. 1 point = 1% of loan amount, typically reduces rate by ~0.25%. See our Mortgage Points guide for break-even analysis.

Pre-Approval
A formal lender commitment to loan a specific amount, based on verified income, assets, and credit. Required in competitive markets. See our Pre-Approval vs Pre-Qualification guide.

Pre-Qualification
A preliminary estimate based on unverified self-reported information. Carries little weight with sellers. Distinctly less valuable than pre-approval.

Prepayment Penalty
A fee charged if you pay off your mortgage early — rare on modern mortgages but still exists on some loan types. Check your loan documents before making extra payments.

Principal
The original amount borrowed, or the remaining loan balance. Each payment reduces the principal. The portion of your payment going to principal is distinct from the portion going to interest.

Private Mortgage Insurance (PMI)
Insurance required on conventional loans when down payment is less than 20%. Protects the lender — not you — if you default. Removable at 20% equity. See our PMI guide.

Promissory Note
Your formal written promise to repay the mortgage loan. Specifies the loan amount, interest rate, payment terms, and consequences of default. One of the key documents you sign at closing.

R–Z

Rate Lock
A lender's commitment to hold a specific interest rate for a defined period (30–60 days) while your loan processes. Protects against rate increases before closing.

Recast (Mortgage Recast)
A lender recalculates your monthly payment after you make a large lump-sum principal payment, lowering your required monthly payment while keeping the same rate and term. Not the same as refinancing.

Recording Fee
A fee paid to the county government to record the deed and mortgage in public records. Typically $25–$250 depending on jurisdiction.

RESPA (Real Estate Settlement Procedures Act)
Federal law that governs mortgage lending disclosures, prohibits kickbacks between settlement service providers, and requires the Loan Estimate and Closing Disclosure.

Second Mortgage
A loan secured by a home that already has a first mortgage. Home equity loans and some piggyback loans are second mortgages. In foreclosure, the first mortgage is paid first from sale proceeds.

SOFR (Secured Overnight Financing Rate)
The primary benchmark index used by modern adjustable-rate mortgages, replacing LIBOR (phased out in 2023). Based on overnight Treasury repurchase transactions.

Title Insurance
Insurance protecting against defects in a property's title (ownership history). Lender's title insurance is required by most lenders. Owner's title insurance is optional but strongly recommended — it's a one-time premium.

Title Search
A review of public records to verify the seller has legal authority to sell the property and to identify any liens, judgments, or ownership disputes affecting the title.

Truth in Lending Act (TILA)
Federal law requiring lenders to disclose the true cost of credit (APR, total payments, etc.) in a standardized way. The Loan Estimate and Closing Disclosure are TILA disclosures.

Underwriting
The lender's process of verifying your income, assets, credit, and the property to determine whether to approve your loan and on what terms. The underwriter is the decision-maker in the loan approval process. See our Mortgage Application Process guide.

USDA Loan
A zero-down-payment mortgage guaranteed by the U.S. Department of Agriculture for eligible rural and suburban properties. See our USDA Loan guide.

VA Loan
A mortgage guaranteed by the U.S. Department of Veterans Affairs for eligible veterans, active-duty service members, and qualifying surviving spouses. Zero down payment, no mortgage insurance. See our VA Loan guide.

Quick Reference: Most-Used Mortgage Acronyms