Reference · Glossary
Mortgage note terms, defined for diligence.
Concise definitions for the terms that appear in listings, collateral files and NoteGage reports, with the reason each term matters and links to deeper guidance.
- Mortgage note
A promissory note that records a borrower's obligation to repay a loan secured by real property. In a note purchase, the note terms matter alongside the mortgage or deed of trust and the transfer documents that connect the obligation to the collateral.
Why it matters: It is the core financial instrument being evaluated, but it is only one part of the collateral and transfer chain.
Related: Collateral file · Assignment · Lien position
- Performing note
A mortgage note whose borrower is making the required payments under the loan terms. A performing label should be supported by current payment or servicing evidence rather than accepted from a listing alone.
Why it matters: Payment status affects how a buyer evaluates income, seasoning and the evidence needed before pricing a deal.
Related: Payment history · Seasoning · Yield
- Non-performing note
A mortgage note with a material payment default or delinquency under the applicable loan terms. The exact status depends on the payment record and contract, so missing or stale servicing evidence should remain unresolved rather than be silently classified as non-performing.
Why it matters: A delinquent loan is evaluated differently from a current income stream and can require additional legal, servicing and collateral diligence.
Related: Payment history · Servicing · Property value
- Unpaid principal balanceUPB
The principal amount still owed on the loan, excluding future interest, fees and escrow balances. It is one of the basic inputs used to understand the size of the remaining obligation.
Why it matters: UPB is frequently used in pricing and collateral ratios, so a stale or incorrect balance can distort several downstream calculations.
Related: Purchase price · LTV · Yield
- Coupon rate
The contractual interest rate stated on the note. It describes the rate charged on the loan balance; it is not the same thing as an investor's yield after buying the note at a premium or discount.
Why it matters: A note can have the same coupon rate but a different investor return depending on purchase price, timing and remaining cash flows.
Related: Yield · Purchase price · UPB
- Yield
The return implied by the purchase price and the expected cash flows from the note under a stated set of assumptions. Yield is different from the coupon rate and should not be presented when the required terms or cash-flow assumptions are internally inconsistent.
Why it matters: Yield is a pricing output, so it is only as reliable as the payment terms, purchase price and payoff assumptions used to compute it.
Related: Coupon rate · Purchase price · Balloon payment
- Purchase price
The amount a buyer proposes to pay for the note or note interest being acquired. It may differ materially from the unpaid principal balance and is a required input for investor-basis calculations such as yield and investment-to-value.
Why it matters: A listing without a fixed purchase price can support diligence, but it cannot support every acquisition-basis metric until a price is supplied.
Related: UPB · Yield · ITV
- Loan-to-valueLTV
A collateral ratio that compares the relevant loan balance with a supported property value. It describes the leverage of the loan against the collateral and should use a value basis whose source and date are understood.
Why it matters: If the property value is only a seller claim or is materially stale, the apparent collateral cushion can be misleading.
Related: Property value · ITV · Lien position
- Investment-to-valueITV
A buyer-basis collateral ratio that relates the acquisition basis, and senior claims when relevant, to a supported property value. The exact inputs depend on lien position and the interest being acquired.
Why it matters: ITV is intended to describe the protective-equity cushion behind the buyer's investment, so unsupported value or senior-balance inputs can materially distort it.
Related: Purchase price · Property value · Senior lien
- Senior lien
A lien with priority ahead of another lien against the same collateral. Priority can depend on recording, subordination, applicable law and transaction-specific facts, so a seller label should not substitute for title or legal review.
Why it matters: Senior claims are paid before junior claims from collateral proceeds and can materially change recovery analysis.
Related: Junior lien · Lien position · Assignment
- Junior lien
A lien whose priority is behind one or more senior claims against the same collateral. A junior position can still have value, but recovery depends on the property value, senior balances and the enforceability of the buyer's own interest.
Why it matters: A large senior balance can consume much of the collateral value before a junior claim receives anything.
Related: Senior lien · Lien position · Property value
- Lien position
The priority order of claims secured by the property. Public records can help identify recorded instruments, but title work or legal review may still be needed to establish current priority, releases, subordination and the effect of unrecorded facts.
Why it matters: Priority determines which claims are paid first from the collateral and therefore affects downside protection.
Related: Senior lien · Junior lien · Assignment
- Assignment
A document or transaction that transfers rights in a mortgage, deed of trust or related loan interest from one party to another. Recorded assignments can be useful evidence, but the complete transfer chain may also depend on the note, endorsements, allonges, possession and transaction-specific law.
Why it matters: A missing or mismatched assignment can create an open ownership or enforceability question that should be resolved before relying on the seller's transfer claim.
Related: Allonge · Collateral file · Lien position
- Allonge
A separate paper affixed to a negotiable instrument that can carry an endorsement when the endorsement is not written directly on the instrument. Whether an allonge is sufficient in a specific transaction is a legal question, not a software conclusion.
Why it matters: An allonge can be part of the evidence showing how rights in the note were transferred from one holder to another.
Related: Assignment · Mortgage note · Collateral file
- Collateral file
The collection of documents that supports the loan and the rights being transferred, which can include the note, mortgage or deed of trust, assignments, allonges, payment records and other closing or servicing material.
Why it matters: A listing summary cannot establish everything a buyer needs to know about the instrument, transfer chain or payment history.
Related: Mortgage note · Assignment · Payment history
- Payment history
A record of borrower payments, due dates, posting dates, amounts and related servicing activity for the period the record actually covers. A ledger can support payment behavior only for its documented scope and dates.
Why it matters: A stale ledger cannot substantiate a current-performing claim, and a non-loan cash-flow record should not be treated as borrower mortgage payments.
Related: Performing note · Non-performing note · Servicing
- Balloon payment
A comparatively large payment due at or near the end of a loan term because the scheduled periodic payments do not fully amortize the balance. The actual obligation should come from the note terms rather than from a guessed maturity structure.
Why it matters: A balloon can materially affect timing, payoff assumptions, refinance risk and yield calculations.
Related: Coupon rate · Yield · Payment history
- Servicing
The day-to-day administration of a mortgage loan, including receiving and applying payments, maintaining account records, responding to borrower inquiries and, when applicable, managing escrow or default processes.
Why it matters: Servicing records can be critical evidence for current balance and payment status, while the servicer may be different from the owner or holder of the note.
Related: Payment history · UPB · Performing note
- Property value
An estimate or opinion of the collateral's value as of a particular date and under a stated basis. Seller claims, assessor values, automated valuations, comparable-sales estimates, BPOs and appraisals are different evidence types and should not be treated as interchangeable.
Why it matters: Collateral-dependent ratios and downside analysis can change materially when the value basis changes.
Related: LTV · ITV · AVM
- Due diligence
The process of reviewing the note terms, payment evidence, collateral, transfer chain, lien or title information, property value and other decision-relevant facts before completing a purchase. The exact work required varies by deal and jurisdiction.
Why it matters: A useful diligence process distinguishes what is supported from what is merely stated and makes unresolved questions explicit before capital is committed.
Related: Collateral file · Lien position · Property value
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