COURSE 11 · Investing & Markets
Learn Crypto: Stablecoins, DeFi, NFTs and Taxes
Understand crypto market structure and its real risks — smart-contract, regulatory and tax — apart from short-term price narratives.
For learning purposes only. General educational information, not personal financial, investment, tax or legal advice. U.S. accounts and rules are identified where relevant; local rules can differ.
What you will learn
- Understand what stablecoins are and what backs them
- Recognize DeFi and NFT mechanics and their real risks
- Track how crypto regulation and institutional adoption are evolving
- Apply correct tax treatment to crypto transactions
Work through the lesson in order when the subject is new. If you already know the foundations, use the section links to review one decision at a time. Examples are simplified to explain mechanics; they do not include every fee, tax rule, eligibility requirement or personal constraint.
Stablecoins, Reserves and Redemption
A stablecoin aims to track a reference value, often a currency. Its name describes a design objective rather than a guarantee of stability or deposit insurance.
How it works
Reserve assets, redemption rights, issuer governance and market liquidity differ by token. Some mechanisms rely on collateral, while others use incentives or related tokens. A reserve report and a full financial audit answer different questions. Holding through an intermediary adds platform risk, and redemption may be restricted even if secondary trading continues.
Reading the details
Redemption rights may apply directly only to specified customers of the issuer. A retail holder using a platform may instead rely on selling in a secondary market. Reserve quality, custody and legal claims become important when redemptions are stressed. A token trading close to its peg today does not prove those mechanisms will work under pressure.
An illustrative example
A hypothetical token targets one dollar but trades at $0.96 when buyers doubt redemption. Owning 1,000 tokens then corresponds to a $960 market quote before fees, despite the intended peg.
Is a stablecoin equivalent to a bank deposit?
No. Legal claims, protection and access differ. Reserve assets held at banks do not automatically give every token holder insured-depositor status.
DeFi: Lending, Liquidity and Smart-Contract Risk
Decentralized finance uses blockchain-based programs to perform activities such as exchanges and collateralized lending. Removing a conventional intermediary does not remove financial or operational risk.
How it works
A protocol can rely on administrators, price feeds, bridges, stablecoins and external interfaces. Lending often requires collateral; a price move can trigger liquidation under programmed rules. Liquidity providers face changing asset balances as traders use a pool. Published yields may include token incentives whose market value changes, and code audits do not insure users against loss.
Reading the details
The term decentralized can describe some parts of a system more accurately than others. A protocol may execute trades automatically while a small group can upgrade its contracts or a centralized service supplies prices. Understanding those control points explains who can change the arrangement and what happens when a dependency stops working.
An illustrative example
A hypothetical loan backed by $1,000 of collateral becomes less protected if that collateral falls to $700 while the loan remains unchanged. Whether liquidation occurs depends on the protocol's threshold, price feed and transaction execution.
Does open-source code make DeFi safe?
No. Public code permits inspection but does not prove that every dependency, permission or economic assumption is sound. Bugs, compromised keys, liquidity shortages and governance changes remain possible.
NFTs, Ownership and Copyright
A non-fungible token is a blockchain record associated with a distinct token identifier. Owning that token is not automatically the same as owning the copyright or physical item it references.
How it works
Rights depend on the licence or agreement attached to the project. The image or other media may be stored outside the blockchain and can become unavailable. Marketplaces, wallets and contracts introduce additional dependencies. A displayed asking price measures what a seller requests, not what another buyer will pay, and thin trading can make valuations unreliable.
Reading the details
A project's royalty claim is another contractual and technical question. A smart contract or marketplace convention may not enforce the same payment across all venues. Similarly, possession of a token may not ensure permanent access to associated media. These dependencies make the licence, storage arrangement and marketplace rules part of the ownership analysis.
An illustrative example
If a hypothetical NFT sells for $200, that transaction establishes a price for that token at that moment. It does not prove that a similar token can sell for $200, or that the buyer can reproduce its artwork commercially.
Can an NFT be copied?
Its image can often be copied, while the blockchain records a distinct token identifier. Scarcity of the identifier and exclusivity of the underlying creative rights are separate issues.
Cryptocurrency Regulation and Its Limits
Cryptocurrency regulation covers activities, intermediaries and rights rather than one universal rule for every token. This guide explains the framework without asserting unverified 2026 developments.
How it works
A platform can face rules concerning securities, commodities, money transmission, custody, disclosure and taxation. These categories can overlap, and treatment depends on jurisdiction and the facts. Registration for one activity does not establish approval of every product. A licence or filing also does not guarantee solvency, asset recovery or protection against price losses.
Reading the details
The relevant legal entity may differ from the brand displayed in an app. A group can operate through subsidiaries with different authorizations and customer contracts. Identifying the entity, activity and jurisdiction prevents a registration in one place from being treated as worldwide approval. Rules can change, so current official notices matter more than an old promotional claim.
An illustrative example
A hypothetical firm registered for a payment service might separately offer a token investment. Its payment registration does not by itself establish how the token offering is regulated or whether customer assets receive insurance.
Does regulation mean an investment is endorsed?
No. Oversight and disclosure requirements are different from a regulator recommending an asset. The scope of the registration and the specific legal entity matter.
Institutional Cryptocurrency Infrastructure
Institutional cryptocurrency infrastructure includes custody, trading, settlement and investment products. Greater institutional participation does not eliminate the underlying asset's risks.
How it works
A custodian's controls, an exchange's trading system and a fund's legal structure solve different operational problems. Concentration in a few providers can create new dependencies. Service availability should not be mistaken for evidence that an asset has a stable value or predictable cash flow. This evergreen guide does not claim a measured institutional shift during 2026.
Reading the details
Operational improvements can reduce one risk while concentrating another. Professional custody may introduce controls unavailable to an individual, yet also creates reliance on a service provider and its legal arrangements. Institutional branding is therefore a description of participation, not a complete risk assessment. The relevant rights and failure procedures belong in the product documents.
An illustrative example
A hypothetical fund uses an external custodian and trades through a separate venue. A failure at either can affect operations even if the blockchain itself continues processing transactions.
Does institutional adoption guarantee higher prices?
No. Access and demand can change, but prices also respond to supply, expectations and liquidity. Adoption statistics are not a promised return.
Cryptocurrency Taxes and Transaction Records
U.S. cryptocurrency tax analysis distinguishes acquiring or holding an asset from receiving income or disposing of it. Tax treatment depends on the transaction, not just a withdrawal into a bank account.
How it works
A sale, purchase made with digital assets, or exchange for another asset can require gain-or-loss analysis. Compensation and some rewards can involve income recognition under applicable rules. Records need acquisition dates, quantities, proceeds, basis and transaction costs; a wallet balance alone cannot reconstruct these. Transfers between a person's own wallets require records so they are not confused with sales.
Reading the details
Reconstructing transactions becomes harder when assets move between platforms. An exchange's record may show proceeds but not the original acquisition cost. Missing basis can materially distort a gain calculation. Transaction identifiers and wallet-transfer records help reconcile the history, while the applicable tax rules determine which records and identification methods are acceptable.
An illustrative example
Ignoring fees, an asset acquired for $800 and sold for $1,100 has a $300 difference between proceeds and basis. That arithmetic does not determine the tax rate, holding period, reporting form or whether a particular loss is deductible.
Does the absence of a tax form make a transaction tax-free?
No. Reporting obligations arise from the underlying facts and law. Platform reporting can be incomplete, and the applicable tax-year instructions remain relevant even when no form arrives.
A shared vocabulary before a shared risk
Stablecoins, DeFi protocols, NFTs and the exchanges that list them are frequently discussed as a single category, but they carry different and largely unrelated risks. A stablecoin's risk is primarily about the quality and liquidity of its backing reserve. A DeFi protocol's risk is primarily about its smart-contract code and the assumptions built into its liquidation mechanics. An NFT's risk is primarily about the durability of whatever claim it actually represents, which is narrower than many buyers assume. Treating all three as one undifferentiated 'crypto risk' obscures which specific failure mode applies to which specific product.
Regulation and institutional infrastructure are changing this landscape unevenly rather than uniformly — a rule that clarifies stablecoin reserve requirements does not automatically extend equivalent clarity to DeFi lending or NFT ownership claims. Tax treatment is the one thread that runs consistently through all of it: nearly every crypto-to-crypto or crypto-to-fiat event is a reportable transaction regardless of which category of asset was involved, which is why the record-keeping habit matters more here than in most other asset classes.
Custody is a separate risk from every risk already discussed in this course. Holding an asset on an exchange means relying on that exchange's solvency and security rather than your own; holding it in a self-custodied wallet shifts that reliance onto your own key management, with no recovery mechanism if a key is lost. Neither option is categorically safer — they trade one risk for a different one, and the right choice depends on how much you are holding and how confident you are in your own operational security.
Regulatory status differs by jurisdiction and changes faster than most other areas of finance covered in this curriculum, which means a specific claim about legality, tax treatment or exchange registration should be verified against current official guidance for your own jurisdiction rather than assumed to still be accurate from an earlier reading.
A protocol's total value locked, or TVL, is often cited as a proxy for trust or safety, but it primarily measures deposited capital, not audited security. A high-TVL protocol can still carry meaningful smart-contract risk; the figure answers a different question than the one it is often used to imply an answer to.
An exchange's proof-of-reserves report, when published, verifies that assets exist at a point in time; it does not by itself verify that the exchange has no offsetting liabilities against those same assets, which is a narrower claim than it is often taken to mean.
Review before moving on
- Explain the central trade-off in your own words without using a product recommendation.
- List the assumptions that would change the conclusion for a different household or jurisdiction.
- Check any current limits, rates, deadlines or legal rules with an official source before acting.
- Write one question that still needs a qualified professional or institution to answer.
A strong financial decision is not one that copies an example. It is one that makes the objective, evidence, uncertainty, costs and alternatives visible enough to compare.
Primary sources and further reading
Use these official references to check the current rule, limit or definition. Publication dates and jurisdiction matter.