Note Investing: How to Buy Real Estate Debt for Passive Income

Most real estate investors think about buying properties. Note investors think about buying debt. Instead of owning a rental property and dealing with tenants, maintenance, and property management, a note investor owns the mortgage — the piece of paper that entitles you to receive monthly payments of principal and interest from the borrower. You become the bank.

Note investing is one of the most genuinely passive forms of real estate investing. When you buy a performing note, your investment generates monthly cash flow without any of the operational headaches of property ownership. No tenants to screen, no toilets to fix, no property taxes to manage, no midnight phone calls. Just a borrower making payments on a mortgage that you own. The concept is simple, but the execution requires knowledge of note valuation, due diligence, legal frameworks, and workout strategies.

This guide covers everything you need to know to get started with note investing: how notes work, the critical distinction between performing and non-performing notes, where to buy notes, how to conduct due diligence, expected returns, risks, and advanced strategies like partial notes and note funds. Whether you are looking for a truly passive income stream or a way to diversify beyond physical property ownership, note investing deserves a place in your real estate investment strategy.

What Is Note Investing?

A real estate note — also called a mortgage note or promissory note — is a legal document that represents a borrower's promise to repay a loan used to purchase real property. The note specifies the loan amount, interest rate, payment schedule, and maturity date. It is paired with a deed of trust or mortgage that pledges the property as collateral. Together, these two documents create a secured debt obligation.

When a homeowner gets a mortgage from a bank, the bank holds the note. But banks do not always keep their notes — they frequently sell them on the secondary market to other banks, hedge funds, investment firms, and individual investors. When you buy a note, you step into the bank's shoes. The borrower makes their monthly payment to you (or your loan servicer) instead of the original lender. You earn interest income just like the bank did. And if the borrower stops paying, you have the same foreclosure rights the bank had because the property secures the debt. For a deeper understanding of the legal instrument, see our glossary entry on promissory notes.

The Note vs. The Property

This distinction is fundamental. When you buy a note, you do not own the property. The borrower owns the property. You own the debt that is secured by the property. If the borrower pays as agreed, you collect payments and never interact with the property at all. If the borrower defaults, you have the right to foreclose and take ownership of the property — but foreclosure is a last resort, not the primary strategy. Your role as a note investor is that of a lender, not a landlord.

Performing Notes vs. Non-Performing Notes

The note investing world divides into two fundamentally different strategies based on whether the borrower is making payments. Understanding the distinction is critical because the risk profile, return expectations, due diligence requirements, and exit strategies are completely different.

Performing Notes

A performing note is one where the borrower is current on payments. They are making their monthly mortgage payment on time and in full. Buying a performing note is the closest thing to buying a bond in real estate: you purchase the note at a price that reflects the remaining balance, interest rate, and term, and you collect predictable monthly cash flow for the life of the note. Returns on performing notes typically range from 8 to 15 percent annually, depending on the interest rate, purchase price discount, and remaining term. A note with a $100,000 balance and a 7 percent interest rate that you purchase for $85,000 generates a yield significantly higher than 7 percent because you paid less than face value. This discount — buying a dollar of debt for 85 cents — is where the return enhancement comes from.

Performing note investing is genuinely passive. You hire a loan servicer (typically $25 to $35 per month) who collects payments from the borrower, manages the escrow account for taxes and insurance, sends tax documents, and handles borrower communications. You receive a monthly direct deposit of principal and interest. The primary risks are the borrower stopping payment (the note becomes non-performing) and prepayment (the borrower pays off the loan early, returning your capital but ending the income stream).

Non-Performing Notes

A non-performing note (NPL) is one where the borrower has stopped making payments — typically 90 or more days delinquent. Non-performing notes trade at steep discounts: 30 to 70 cents on the dollar depending on the collateral value, borrower situation, and state foreclosure timeline. The potential returns are much higher — 15 to 30 percent or more — but so are the risks and the active management requirements.

When you buy a non-performing note, you are buying a problem to solve. The borrower is not paying, and you need to figure out why and determine the best path forward. Options include: loan modification (restructuring the terms so the borrower can resume payments), forbearance agreement (a temporary plan to cure the delinquency), short sale (the borrower sells the property for less than the note balance, with your approval), deed in lieu of foreclosure (the borrower voluntarily transfers the property to you, avoiding formal foreclosure), and foreclosure (the legal process to take ownership of the property). The best outcome is often a loan modification that turns the non-performing note into a performing note — you bought the note at 50 cents on the dollar and now have a performing asset generating monthly payments on the full balance.

Where to Buy Real Estate Notes

Notes are not listed on the MLS. The note trading market is less transparent than the property market, but multiple channels exist for finding and acquiring notes at every scale.

Note Exchanges and Trading Platforms

Online platforms have democratized note trading. Paperstac is the largest peer-to-peer note trading platform, offering performing and non-performing notes with detailed due diligence packages. LoanMLS is another marketplace where note sellers list assets. Notes Direct, Waterfall Asset Management, and other platforms offer curated note pools. These exchanges allow you to browse available notes, review collateral files, and make offers directly. Minimum investments start as low as $5,000 to $10,000 for individual notes, though most institutional-quality notes trade at $25,000 to $100,000 or more.

Banks and Credit Unions

Banks sell non-performing loans to clean up their balance sheets and recover capital. Community banks and credit unions are more accessible than large institutions and often sell smaller note pools (5 to 50 notes) at negotiable prices. Building relationships with bank asset disposition officers is a long-term strategy that can yield consistent deal flow. Banks typically sell NPLs in bulk through sealed-bid auctions, though some will negotiate individual note sales with established buyers.

Private Sellers and Note Brokers

Private note holders — individuals who sold a property with seller financing and now hold a note — often want to cash out before the note matures. Note brokers connect these sellers with investors. The private note market is where some of the best deals exist because private note holders are not sophisticated institutional sellers — they are often motivated by life events (retirement, medical expenses, divorce) and willing to sell at significant discounts. Note brokers typically charge 1 to 3 points as a finder's fee, paid by the seller.

Hedge Funds and Note Funds

For larger investors, hedge funds and note funds offer pooled note investments with professional management. Minimum investments typically start at $50,000 to $250,000. These funds acquire large portfolios of notes and employ teams of workout specialists to maximize recovery on non-performing assets. Returns vary but typically target 10 to 18 percent annually. The advantage is diversification and professional management. The disadvantage is less control, management fees (typically 1 to 2 percent annually plus a performance fee), and limited liquidity.

Note Investing Due Diligence

Due diligence on a note is fundamentally different from due diligence on a property. You are evaluating three things: the collateral (the property), the borrower, and the paper (the legal documents).

Collateral Review

Even though you are buying debt rather than property, the property securing that debt is your ultimate protection. Order a broker price opinion (BPO) or drive-by appraisal to estimate the current property value. Calculate the loan-to-value ratio — the ratio of the remaining note balance to the current property value. A note with an LTV of 60 percent is much safer than one at 90 percent because you have more equity cushion if you need to foreclose. Check for environmental issues, structural problems, code violations, and tax liens on the property. Even if you never intend to own the property, you need to know its condition because it is your collateral.

Borrower Evaluation

For performing notes, review the borrower's payment history — how many on-time payments, any late payments in the last 12 to 24 months, and the overall payment trend. For non-performing notes, understand why the borrower stopped paying. Is it a temporary hardship (job loss, medical issue) with potential for recovery, or a permanent situation? Is the property owner-occupied (borrowers fight harder to keep their primary residence) or an investment property? Is the borrower responsive to communication? A non-performing note where the borrower is cooperative and willing to work out a modification is worth significantly more than one where the borrower has abandoned the property.

Paper Review

The legal documents must be complete and enforceable. Review the original promissory note and deed of trust or mortgage. Verify the chain of title — every transfer of the note from the original lender to you must be properly documented through endorsements and allonges. A broken chain of title can make the note unenforceable. Confirm that the note is recorded properly with the county. Check for junior liens, tax liens, and other encumbrances that could affect your position. For non-performing notes, review any prior modification agreements, forbearance plans, or demand letters. Hire a note attorney to review the collateral file before purchasing any note above $25,000.

Note Investing Returns and Pricing

Note returns vary dramatically based on the type of note, purchase price, and workout outcome. Here is a framework for understanding note pricing and expected returns. Model your potential returns using our cash-on-cash return calculator.

Performing Note Returns: 8 to 15 Percent

Performing first-lien notes typically trade at 80 to 95 cents on the dollar, depending on the interest rate, remaining term, borrower credit quality, and property type. A note with a 7 percent interest rate purchased at 85 cents on the dollar yields approximately 9 to 10 percent. A note with a 9 percent rate purchased at 90 cents yields approximately 11 to 12 percent. Higher-yield notes (10 percent or above) on riskier collateral can yield 12 to 15 percent. The key variable is the purchase price discount — the wider the discount, the higher your yield.

Non-Performing Note Returns: 15 to 30 Percent or More

Non-performing notes trade at 30 to 70 cents on the dollar. The actual return depends entirely on the workout outcome. If you buy a note at 50 cents on the dollar and successfully modify it into a performing note at the full balance, your yield can exceed 30 percent. If you foreclose and sell the property, your return depends on the property's market value minus foreclosure costs and holding costs. If the borrower reinstates (cures the delinquency and resumes payments), you earn the full interest rate on a note you purchased at a discount. The average non-performing note investor targets 15 to 25 percent returns, acknowledging that some deals will exceed 30 percent and others will break even or lose money.

Pricing Framework

Note pricing is driven by three primary factors. Investment-to-value (ITV) is the ratio of your purchase price to the current property value — this measures your downside protection. A note with a $50,000 purchase price on a property worth $100,000 has a 50 percent ITV, meaning you have significant equity cushion. Unpaid principal balance (UPB) discount is the percentage below face value — a note with a $100,000 UPB purchased for $65,000 is at a 35 percent discount. And yield-to-maturity calculates your total return if the borrower pays the note to term, accounting for the purchase discount and the interest rate.

Risks of Note Investing

Note investing carries specific risks that differ from property ownership risks. Understanding these risks upfront is essential to protecting your capital.

Default Risk

The borrower may stop paying. For performing notes, this transforms your passive income stream into an active workout project. You will need to decide whether to modify, foreclose, or negotiate a deed in lieu. Each option has costs and timeline implications. Foreclosure in particular can be expensive ($5,000 to $50,000 depending on the state) and time-consuming (6 months to 3 years depending on the state's foreclosure process).

Collateral Risk

The property securing your note may decline in value. If the property's market value drops below the note balance (negative equity), the borrower has an incentive to walk away. Environmental contamination, structural issues, or neighborhood decline can also impair your collateral. Always know the condition and value of the property before buying the note.

Legal and Title Risk

Notes with broken chains of title, missing documents, or improperly executed assignments may be difficult or impossible to enforce. Buying a note without a thorough paper review is gambling, not investing. Budget $500 to $1,500 for a title search and legal review on every note acquisition.

Liquidity Risk

Notes are not liquid investments. You cannot sell a note on a stock exchange with instant execution. Selling a note requires finding a buyer, negotiating a price, and completing due diligence — a process that can take weeks or months. If you need your capital back quickly, you may have to sell at a deeper discount than you originally paid. Invest only capital you can commit for the duration of the note's expected hold period.

Advanced Strategy: Partial Notes

A partial note purchase is an arrangement where you buy a specified number of payments from a note holder rather than the entire remaining balance. For example, a note has 240 payments remaining, and you purchase the right to receive the next 60 payments. After those 60 payments, the remaining 180 payments revert to the original note holder.

Partial notes serve two purposes. For investors, they lower the capital requirement — instead of paying $80,000 for a full note, you might pay $25,000 for 60 payments. For note sellers, partials allow them to access some cash now while retaining the long-term income stream. Returns on partial note purchases are typically 12 to 18 percent because the seller accepts a discount on the payments they are selling in exchange for immediate liquidity.

Note Funds: Pooled Note Investing

Note funds pool investor capital to purchase portfolios of notes — typically 20 to 200 or more notes per fund. This provides diversification that individual note investors cannot achieve on their own. If one note in a 100-note portfolio defaults catastrophically, the impact on overall fund returns is minimal. Note funds are managed by experienced operators who handle all due diligence, servicing, and workout activities. Most note funds target 8 to 15 percent annual returns for performing note strategies and 12 to 20 percent for non-performing note strategies. Minimum investments range from $50,000 to $250,000, and most have 3 to 7 year lock-up periods.

Getting Started with Note Investing

Note investing offers a genuinely different path to real estate returns — one that eliminates property management entirely and positions you as the bank rather than the landlord. Start with performing first-lien notes if you want passive income with moderate risk. Move into non-performing notes as you develop workout skills and build relationships in the note trading community. Use our cash-on-cash return calculator to model potential returns at different purchase prices and yields.

The most important rule in note investing is the same as in all real estate: do your due diligence. Evaluate the collateral, evaluate the borrower, and evaluate the paper. Never buy a note without a title search and legal review. Never buy a note without knowing the property's current value. And never invest more in a single note than you can afford to lose. Diversification across multiple notes, geographies, and note types is the foundation of a sustainable note investing strategy.