How to Buy Credit Default Swaps: ISDA Setup, Dealers, and Clearing

To buy a credit default swap, you need to qualify as an Eligible Contract Participant under federal law, sign an ISDA Master Agreement with a registered swap dealer, and execute the trade through a Swap Execution Facility or directly with the dealer, with central clearing required for most index products. Individuals need more than $10 million in discretionary investments to qualify; businesses can enter with $10 million in total assets, or a $1 million net worth if they are hedging. Everything else, from the paperwork to the margin calls, follows from those gatekeeping facts.

Do You Qualify to Trade

Federal law restricts credit default swaps to Eligible Contract Participants, a category defined in the Commodity Exchange Act.¹ No registered dealer will trade with you until you clear one of these financial bars:

Individuals speculating need more than $10 million in amounts invested on a discretionary basis. That means actual investments you control, not total net worth and not the appraised value of your home.¹
Individuals hedging an existing or expected asset or liability qualify with $5 million in discretionary investments.¹
Corporations, partnerships, trusts, and similar entities qualify with total assets exceeding $10 million.¹
Entities hedging business risk qualify with a net worth above $1 million.¹
Banks, insurance companies, registered investment companies, commodity pools with over $5 million in assets, and government entities each have their own qualifying criteria in the statute.¹

Dealers verify your status before any trade. SEC business conduct rules require “know your counterparty” procedures that look like the due diligence a broker-dealer performs when opening an account.² Plan to provide audited financial statements, brokerage account summaries, and tax documentation. Misrepresenting your financial position to meet these thresholds can result in voided contracts and civil penalties.

If you don’t clear one of these bars, the market is closed to you. There is no retail path into regulated CDS.

Choose Between Single-Name and Index CDS

Two product types dominate the market, and they trade very differently.

A single-name CDS references the debt of one specific company or sovereign. If you want protection on Ford Motor Company’s debt, you buy a CDS with Ford as the reference entity. Single-name contracts trade less frequently and are harder to exit. In recent data, only about 4% of actively traded reference names averaged 10 or more transactions per day. Roughly 64% of corporate single-name CDS notional was centrally cleared in the first half of 2024, with the rest trading bilaterally.

An index CDS bundles a standardized basket of names into one tradable product. The two dominant families are CDX for North America and iTraxx for Europe. CDX.NA.IG, for example, tracks 125 investment-grade North American corporate names. Index products are far more liquid, with CDX.NA.IG averaging over 500 transactions per day, and over 80% of index CDS notional is centrally cleared. For a first trade, index CDS are easier to price, trade, and exit.

Set Up the ISDA Documentation

No trade happens without the paperwork. The foundational contract is the ISDA Master Agreement, published by the International Swaps and Derivatives Association, and virtually every CDS trade globally runs through some version of it. The Master governs your overall relationship with the counterparty: payment obligations, what counts as default between you, and how the relationship unwinds if something goes wrong.

You’ll negotiate three connected documents:

The Master Agreement itself, a standardized template. Most parties use the 2002 version.
The Schedule, where you and your counterparty customize terms, including governing law, tax representations, and any modifications to the standard Master provisions. Most of the legal negotiation happens here.
The Credit Support Annex, which defines collateral: what types are acceptable, how often collateral is recalculated, and the minimum transfer amount that triggers an actual movement of funds.

Negotiating these documents with a new counterparty can take a few days to several weeks, depending on how much the parties disagree on risk allocation. Most institutional investors use legal counsel or a prime broker to handle the process. You’ll need to provide a Legal Entity Identifier, tax identification numbers, and authorized signatory lists before anything gets signed. Fund and corporate entities should expect requests for organizational structure and financial history as well.

Find a Dealer and the Right Venue

The CDS market revolves around a small number of large banks that act as registered swap dealers. These dealers provide liquidity by standing ready to sell or buy protection across hundreds of reference entities. To begin trading, you contact the credit derivatives desk at one of these institutions. Institutional buyers often use Bloomberg terminals or similar messaging platforms to request quotes from several dealers at once, which creates price competition.

The Dodd-Frank Act introduced Swap Execution Facilities as regulated electronic platforms where standardized swaps must be traded.³ A SEF functions like an electronic exchange, giving participants a centralized place to see prices and execute with multiple dealers. If your CDS product falls under the CFTC’s trade execution mandate, you must use a SEF rather than negotiating the trade bilaterally over the phone.

Understand the Clearing Requirement

Many CDS trades must be cleared through a central clearinghouse after execution. Clearing means that once the trade is agreed, a clearinghouse steps in between you and your counterparty, becoming the buyer to every seller and the seller to every buyer. This removes the risk that your counterparty goes bankrupt and can’t pay you when a credit event occurs. ICE Clear Credit is the dominant U.S. clearinghouse for CDS, clearing over 685 single-name reference entities along with index and index option products.

The CFTC mandates central clearing for specific index products:

North American indices: CDX.NA.IG at 3, 5, 7, and 10-year tenors, and CDX.NA.HY at the 5-year tenor.⁴
European indices: iTraxx Europe and iTraxx Europe Crossover at the 5-year tenor, iTraxx Europe also at the 10-year tenor, and iTraxx Europe HiVol at the 5-year tenor.⁴

Single-name CDS are not currently subject to mandatory clearing, though many participants clear them voluntarily. If your trade must be cleared, you’ll need access to the clearinghouse either as a direct clearing member, which demands significant capital, or through a clearing broker who is a member. The clearinghouse sets its own margin requirements, which may differ from the bilateral margin you’d post in an uncleared trade.

Execute the Trade

With documentation signed and a counterparty identified, execution follows a structured sequence. You submit a request for quote specifying the reference entity or index, the notional amount, whether you’re buying or selling protection, and your desired maturity. Standard maturities follow a quarterly cycle, and the 5-year tenor is the most actively traded.

Pricing is quoted as a spread in basis points per year. A spread of 100 basis points on a $10 million notional means you pay $100,000 annually, split into quarterly installments of $25,000 on March 20, June 20, September 20, and December 20, with an Actual/360 day count.

In practice, most CDS now trade with standardized fixed coupons rather than at the exact market spread. Investment-grade names carry a fixed coupon of 100 basis points, and high-yield names carry 500 basis points. The difference between the market spread and the fixed coupon is settled as an upfront payment at inception. If the market spread is 150 basis points but the standard coupon is 100, you pay the present value of the 50 basis point difference upfront. The standardization makes contracts more fungible and easier to clear.

Once both sides agree on price, the trade is confirmed electronically. The confirmation spells out every material attribute: reference entity, notional, spread, premium frequency, maturity, and the specific credit events (such as bankruptcy, failure to pay, and in some contracts restructuring) that would trigger a payout. For cleared trades, confirmation data goes directly to the clearinghouse, which becomes the central counterparty. Both sides receive a trade identifier that serves as the official reference for the position.

Margin and Reporting After the Trade

Buying a CDS is not a set-it-and-forget-it transaction. You face daily collateral obligations and strict regulatory reporting for as long as you hold the position.

Margin

For uncleared swaps, federal rules require both initial and variation margin. Initial margin is collateral posted at trade inception to cover potential future losses, calculated using risk-based models.⁵ Variation margin reflects the daily change in the contract’s market value. If the position moves against you, you post more; if it moves in your favor, your counterparty posts to you.

Variation margin compliance begins no later than the business day after execution and continues every business day until the swap terminates.⁵ A practical wrinkle: the standard minimum transfer amount is $500,000, so no collateral actually moves until the call exceeds that threshold. For separately managed accounts, the minimum drops to $50,000 per account.⁶ Cleared trades carry their own margin requirements set by the clearinghouse, which may be more demanding.

Reporting

All swap transactions must be reported to a registered Swap Data Repository.⁷ In most cases the dealer carries the reporting obligation, but both parties are responsible for accuracy. The Commodity Exchange Act authorizes civil penalties of up to $140,000 per violation for reporting failures, or triple the monetary gain from the violation, whichever is greater.⁸ In recent enforcement actions, the CFTC has imposed penalties ranging from $650,000 to $1.5 million on major institutions for swap data reporting failures.

Exiting Before Maturity

You don’t have to hold a CDS until it matures or a credit event occurs. There are three main exit paths, and understanding them matters because a position you can’t exit will bleed premium for years.

Offsetting trade. The most common method. You enter a new CDS on the same reference entity with the same maturity but on the opposite side, locking in a gain or loss equal to the spread difference. The two positions economically cancel, though both remain on your books.
Novation. You transfer your side of the existing contract to a third party, who steps into your shoes and pays or receives the current mark-to-market value. This requires the original counterparty’s consent and removes the trade from your books entirely.
Mutual termination, sometimes called a tear-up. You and your counterparty simply agree to cancel. One side pays the current mark-to-market value, and the contract ceases to exist. Simple, but it needs both parties to agree.

For cleared trades, exiting is simpler. Because the clearinghouse is your counterparty, an offsetting trade nets against your existing position, and the clearinghouse releases your margin.

Tax Treatment

The tax treatment of credit default swaps is one of the murkier areas of U.S. tax law. One point is clear: CDS are explicitly excluded from the definition of a Section 1256 contract, so they do not qualify for the 60/40 capital gains treatment that applies to futures and certain options.⁹

Beyond that exclusion, the IRS has not issued definitive guidance. In Notice 2004-52 the agency acknowledged that CDS could be analogized to options, notional principal contracts, guarantees, or insurance, each carrying different tax consequences. More than two decades later, that guidance still has not materialized. In practice, most market participants treat periodic premium payments as ordinary income or expense and treat termination or credit event payments based on the analogy they and their tax advisors consider most defensible. Engage a tax advisor with derivatives experience before your first trade, not after.

1
Office of the Law Revision Counsel. 7 USC 1a – Definitions
2
Securities and Exchange Commission. Business Conduct Standards for Security-Based Swap Dealers and Major Security-Based Swap Participants
3
eCFR. 17 CFR Part 37 – Swap Execution Facilities
4
eCFR. 17 CFR 50.4 – Classes of Swaps Required to Be Cleared
5
eCFR. 12 CFR Part 45 – Margin and Capital Requirements for Covered Swap Entities
6
eCFR. 17 CFR Part 23 Subpart E – Capital and Margin Requirements for Swap Dealers and Major Swap Participants
7
eCFR. 17 CFR Part 45 – Swap Data Recordkeeping and Reporting Requirements
8
Office of the Law Revision Counsel. 7 USC 9 – Prohibition Regarding Manipulation and False Information
9
Office of the Law Revision Counsel. 26 USC 1256 – Section 1256 Contracts Marked to Market