Mortgage Basics

Core mortgage terms that explain what the loan is, how repayment works, and who the main borrowing parties are.

Mortgage basics is the starting lane for the site. These pages explain what a mortgage is, how the debt is repaid over time, which documents define the loan, and which people or companies sit between the borrower and the money.

Start Here by Borrower Question

If you are trying to understand…Start withThen read
What the loan actually is and how repayment worksMortgageMortgage Obligation, Loan Amount, Base Loan Amount, Principal, Interest, and Monthly Payment
How purchase money, program charges, and loan funds fit togetherPurchase PriceLoan Amount, Base Loan Amount, Loan Proceeds, Down Payment, and Cash to Close
Why the home itself matters to the loanCollateralSecured Loan, Security Instrument, First Mortgage, and First Lien
How the payoff timeline changes over timeLoan TermAmortization Period, Remaining Term, Payment Schedule, Maturity Date, Amortization, and Amortization Schedule
Why the bill can change after closingMonthly PaymentScheduled Payment, Principal Payment, Interest Payment, Principal Balance, Amortization, and PITI
How to compare full cost or payoffTotal InterestPayoff Amount, Principal Balance, Accrued Interest, and Payoff Statement
When regular payments beginFirst Payment DatePayment Schedule, Payment Due Date, Mortgage Statement, Prepaid Interest, and Daily Interest
How extra or faster payments affect the balanceExtra Principal PaymentPayment Frequency, Biweekly Mortgage Payment, Semimonthly Mortgage Payment, Principal Curtailment, and Mortgage Recast
Which document creates the repayment obligation and how note rights can movePromissory NoteMortgage Note, Note Holder, Note Endorsement, Allonge, and Electronic Note (eNote)
Who is helping place, originate, extend, or fund the loanMortgage Loan Originator (MLO)Loan Officer, Mortgage Broker, Mortgage Lender, Mortgage Creditor, and Correspondent Lender
Which formal party labels appear in loan documentsMortgage BorrowerMortgagor, Mortgagee, Mortgage Holder, Note Holder, and Mortgagee Clause
Whether regular payments fully retire the debtFully Amortizing MortgagePayment Schedule, Negative Amortization, Balloon Payment, and Balloon Mortgage
How the application starts and is classifiedMortgage ApplicationUniform Residential Loan Application, Loan Application Packet, Borrower Authorization, Credit Authorization, Loan Purpose, and Occupancy Statement
How the documented file moves toward closingLoan FileLoan Number, Preapproval, Mortgage Commitment, Conditional Approval, and Clear to Close

If you are new to mortgage vocabulary, start with Mortgage, Home Loan, Secured Loan, Collateral, Purchase Price, Loan Amount, Base Loan Amount, Loan Proceeds, Mortgage Obligation, Original Principal Balance, Principal, Principal Balance, Payoff Amount, Interest, Accrued Interest, Total Interest, Principal and Interest (P&I), and Monthly Payment. Those pages establish the core ideas that show up again in underwriting, closing, refinancing, and servicing.

When those basics feel clear, move into First Payment Date, Scheduled Payment, Payment Frequency, Payment Schedule, Loan Term, Amortization Period, Remaining Term, Maturity Date, Amortization, Reamortization, Negative Amortization, and Amortization Schedule to see how the balance changes over time, then compare Mortgage Loan Originator (MLO), Mortgage Lender, Mortgage Creditor, Correspondent Lender, and Mortgage Broker before exploring Loan Types.

For payment strategy vocabulary, compare Extra Principal Payment, Biweekly Mortgage Payment, Semimonthly Mortgage Payment, Principal Curtailment, and Mortgage Recast so optional balance reduction does not get confused with the required scheduled payment.

As the section expands, it also covers how the borrowing process starts in practice through Mortgage Application, Uniform Residential Loan Application, Loan File, Loan Number, Borrower Authorization, Credit Authorization, Loan Purpose, Occupancy Statement, and Mortgage Commitment, plus the day-to-day lender contact role of the Loan Officer.

If the legal paperwork feels abstract, stay in the document lane: read Mortgage, then compare Mortgage Borrower, Mortgagor, Mortgagee, Mortgage Holder, Note Holder, Promissory Note, Mortgage Note, Mortgage Obligation, Note Endorsement, Allonge, Note Date, Electronic Note (eNote), and Principal and Interest (P&I) so the party labels, loan promise, transfer records, collateral framework, document format, and payment labels do not blur together.

In this section

  • Accrued Mortgage Interest
    Mortgage interest that has accumulated for a period but has not yet been paid.
  • Allonge
    Separate sheet attached to a paper mortgage note to carry one or more note endorsements.
  • Amortization Period
    Amortization period is the repayment span used to calculate payments that would reduce a mortgage balance to zero.
  • Balloon Payment
    Large lump-sum mortgage payment due at a set point, often at maturity of a balloon loan.
  • Base Loan Amount
    Mortgage principal before a financed program charge, most often used to distinguish an FHA base mortgage from the total amount after UFMIP.
  • Biweekly Mortgage Payment
    Payment pattern using one-half of the monthly mortgage amount every two weeks.
  • Borrower Authorization
    A borrower authorization permits specified mortgage participants to obtain, verify, or share information needed to process the loan.
  • Collateral
    Property pledged to support mortgage repayment, giving the lender a claim if the loan is not repaid.
  • Correspondent Lender
    Mortgage company that originates, funds, and closes loans in its own name for later sale to another lender or investor.
  • Credit Authorization
    A credit authorization permits a lender to obtain credit-report information for mortgage qualification, underwriting, or closing review.
  • Daily Mortgage Interest
    Mortgage interest attributable to one day under the loan's balance, rate, and day-count method.
  • Electronic Note (eNote)
    Electronically signed mortgage promissory note managed as a transferable record rather than as an original paper note.
  • Extra Principal Payment
    Optional mortgage payment amount directed to reduce principal beyond the scheduled payment.
  • First Mortgage
    Primary mortgage loan on a property, usually tied to the first lien position.
  • First Payment Date
    Date the first regular mortgage payment is due after closing.
  • Home Loan
    A home loan is residential-property financing used to purchase, refinance, or borrow against a home.
  • Interest
    Interest is the dollar charge for using mortgage funds, calculated from the rate, balance, and applicable time period.
  • Interest Payment
    Part of a mortgage payment that covers borrowing cost rather than reducing principal.
  • Loan Amount
    Mortgage principal amount borrowed at closing or requested in the loan application.
  • Loan Application Packet
    A loan application packet is the organized set of financial, identity, and transaction documents a borrower gathers to support mortgage review.
  • Loan File
    A loan file is the complete origination record used to document the application, verification, underwriting decision, disclosures, and closing.
  • Loan Number
    A loan number identifies a mortgage application or servicing account across the correct records, documents, communications, and payments.
  • Loan Officer
    Borrower-facing mortgage professional who discusses loan options, assists with the application, and coordinates the origination process.
  • Loan Proceeds
    Mortgage funds advanced at closing and disbursed for the approved purchase, refinance, construction, or equity transaction.
  • Loan Purpose
    Loan purpose classifies a mortgage as a purchase, refinance, cash-out refinance, construction, or other transaction and affects how it is reviewed.
  • Loan Term
    Loan term is the contractual span from mortgage origination to scheduled maturity.
  • Maturity Date
    Scheduled date when the mortgage must be fully paid according to the loan documents.
  • Monthly Mortgage Payment
    Monthly mortgage payment is the recurring amount due for loan repayment and any required escrow or insurance components.
  • Mortgage
    A mortgage is a home-secured borrowing arrangement that combines a repayment obligation with a claim against the property.
  • Mortgage Amortization
    Mortgage amortization is the scheduled process that reallocates each payment from interest toward principal as the balance declines.
  • Mortgage Amortization Schedule
    A mortgage amortization schedule shows each projected payment's principal, interest, and remaining-balance allocation.
  • Mortgage Application
    Borrower's formal request for mortgage credit and the information that starts lender disclosure and review obligations.
  • Mortgage Borrower
    Person or entity obligated to repay a mortgage under the loan documents.
  • Mortgage Broker
    Intermediary that helps a borrower compare or place a mortgage with lenders rather than extending the credit directly.
  • Mortgage Commitment
    A mortgage commitment states the lender's willingness to fund a loan under specified terms and conditions but may still require final items before closing.
  • Mortgage Creditor
    Party that extends covered mortgage credit and to whom the debt is initially payable at consummation.
  • Mortgage Holder
    Broad label for a party holding mortgage-loan rights, which may not identify the servicer, note holder, or loan owner precisely.
  • Mortgage Lender
    Bank, credit union, or nonbank company that extends and funds mortgage credit for a borrower.
  • Mortgage Note
    Mortgage-specific promissory note that records the borrower's repayment terms and works with a separate property security instrument.
  • Mortgage Obligation
    Borrower's legal duty to repay the mortgage debt and follow the loan terms.
  • Mortgage Payment Frequency
    How often mortgage payments are contractually due or voluntarily submitted.
  • Mortgage Payment Schedule
    Contractual sequence of mortgage payment amounts and due dates across the loan term.
  • Mortgagee
    Formal mortgage-document term for the lender-side party receiving the mortgage interest.
  • Mortgagor
    Formal mortgage-document term for the borrower or property owner granting the mortgage interest.
  • Negative Amortization
    Negative amortization happens when unpaid interest is added to the mortgage balance.
  • Note Date
    Date shown on the mortgage note that helps identify the signed repayment obligation.
  • Note Endorsement
    Signature and transfer language placed on a paper mortgage note or attached allonge to document note rights.
  • Note Holder
    Party with holder rights under the mortgage note, which may differ from the servicer or economic loan owner.
  • Occupancy Statement
    An occupancy statement records how the borrower intends to use the financed property and supports the lender's occupancy classification.
  • Original Principal Balance
    Starting mortgage principal balance when the loan closes before later payments change it.
  • Payoff Amount
    Amount required to satisfy the mortgage in full on a specific payoff date.
  • Principal
    Principal is the mortgage debt amount borrowed and still subject to repayment, separate from interest and other charges.
  • Principal and Interest (P&I)
    P&I is the principal-and-interest portion of a mortgage payment, excluding taxes, insurance, and other added housing costs.
  • Principal Balance
    Principal balance is the unpaid portion of the loan principal that the borrower still owes, not including future interest.
  • Principal Payment
    Part of a mortgage payment that reduces the unpaid loan balance.
  • Promissory Note
    Signed promise to repay a debt under stated principal, interest, payment, default, and maturity terms.
  • Purchase Price
    Contract price for the home before down payment, loan amount, and closing-cost math are applied.
  • Reamortization
    Recalculation of a mortgage payment schedule using the remaining balance, rate, and term.
  • Remaining Term
    Time left on the mortgage's scheduled repayment period before the maturity date.
  • Scheduled Payment
    Required mortgage payment amount due under the loan's current payment schedule.
  • Secured Loan
    Loan backed by collateral, such as a mortgage secured by a home.
  • Semimonthly Mortgage Payment
    Payment pattern using two mortgage transfers each calendar month, usually 24 per year.
  • Total Mortgage Interest
    Dollar amount of mortgage interest paid or projected over a stated repayment period.
  • Uniform Residential Loan Application
    The Uniform Residential Loan Application organizes borrower, property, transaction, and financial information for mortgage review.
Revised on Sunday, August 30, 2026