CFA Level I Exam · Fixed-Income Instrument Features

Legal, Regulatory and Tax Considerations for Bonds in CFA Level 1

Updated 7 October 2026 · Fact-checked

The bond indenture (trust deed) is the legal contract between issuer and bondholders. It lists the bond terms and covenants. Affirmative covenants say what the issuer must do; negative covenants limit what it may do. A trustee monitors compliance. Tax rules, such as OID treatment and tax-exempt municipal bonds, affect after-tax returns.

Understand Legal, Regulatory and Tax Considerations

A bond is a legal promise to repay money. That promise is written in a contract called the bond indenture, also called the trust deed. It sets out the principal, coupon, maturity, collateral, covenants, and the rights of bondholders and the obligations of the issuer. The bond prospectus or offering document describes the same terms to investors.

Because thousands of investors may hold one bond, they cannot each monitor the issuer. A trustee, usually a financial institution, acts for bondholders. It holds the indenture, monitors compliance with covenants, and acts if the issuer defaults. The issuer is the borrower and has the obligation to pay and follow the terms. The legal and regulatory framework depends on the jurisdiction where the bond is issued and sold. This affects disclosure, who may buy the bond, and how it is traded.

Covenants protect lenders by limiting actions that could hurt their chance of being repaid. Affirmative (positive) covenants are things the issuer must do. Examples are paying interest and principal on time, maintaining insurance on assets, keeping assets in good condition, and complying with laws. They are usually low cost and not very restrictive.

Negative covenants are things the issuer must not do, or may do only within limits. Examples are limits on additional debt, restrictions on dividends or share buybacks, limits on selling key assets, limits on pledging assets to other lenders, and restrictions on mergers. They are more restrictive and can reduce the issuer's flexibility. Investors value them because they protect credit quality. A breach can lead to a default and, often, a chance for bondholders to demand repayment.

Tax treatment matters because investors care about after-tax return. Coupon interest is generally taxed as income, but rules vary by country. A bond issued below par has original issue discount (OID). In some jurisdictions, the discount accretes over the bond's life and is taxed as interest each year, even though cash is received only at maturity. In others, it is taxed at maturity or sale. Interest on some government-related bonds, such as US municipal bonds, can be exempt from tax at the national level, so they can offer lower yields. Always follow what the question states about the tax rules.

Key formulas to remember

Affirmative vs negative covenants: Affirmative = what the issuer MUST do; Negative = what the issuer must NOT do; Negative covenants restrict flexibility more and protect bondholders more.
Taxable-equivalent yield: Taxable-equivalent yield = tax-exempt yield ÷ (1 − tax rate); Use it to compare a tax-exempt municipal bond with a taxable bond. The tax rate is the investor's marginal rate, as a decimal.
After-tax yield: After-tax yield = taxable yield × (1 − tax rate); The reverse comparison: convert the taxable bond's yield to after-tax.
OID accretion (constant-yield method): Interest income for the period = beginning carrying value × yield per period; accretion = interest income − coupon; Rules differ by jurisdiction; some accrue the discount, others use straight-line. Follow the question.

How to solve Legal, Regulatory and Tax Considerations questions

Use this method for any question on indentures, covenants, roles or tax treatment.

1Identify what is being asked: a definition, a classification of a covenant, a party's role, or a tax calculation.
2For a covenant, ask: is the issuer being told to do something (affirmative) or to refrain or limit something (negative)?
3For roles, match the party: issuer owes payments, trustee monitors and acts for bondholders, indenture is the contract.
4Note who benefits from the term: bondholders gain from tighter covenants; issuers gain from flexibility.
5For tax questions, list the tax rate, the yields, and whether income is exempt or accrues as OID.
6Compute taxable-equivalent or after-tax yield if needed, keeping the rate as a decimal.
7Eliminate the two options that reverse the direction (for example, call a restriction affirmative).
8Check that your answer matches the exact condition stated in the stem.

Quickest way: Verb test for covenants

When to use it: Any question that asks you to classify a covenant or judge its effect on bondholders.

Read the covenant and find the verb.
If it is 'maintain', 'pay', 'insure' or 'comply', it is affirmative.
If it is 'limit', 'not', 'restrict' or 'prohibit', it is negative.
Tighter negative covenants usually mean lower credit risk and a lower yield for the issuer.
For municipal comparisons, divide the tax-exempt yield by (1 − tax rate) and compare.

Common mistakes in Legal, Regulatory and Tax Considerations

Calling a restriction on dividends an affirmative covenant.
Students see it as a protective feature and assume protective means positive.
Fix: Classify by what the issuer does: if it restricts action, it is negative.
Thinking the trustee guarantees repayment.
The trustee protects bondholders, so it sounds like a guarantor.
Fix: The trustee monitors and enforces the indenture on behalf of bondholders but does not repay the debt. The issuer owes the payments.
Using the tax rate as a whole number in the taxable-equivalent formula.
Rushing under time pressure.
Fix: Convert 30% to 0.30 before computing 1 − 0.30 = 0.70.
Assuming OID is taxed only when cash is received at maturity.
No cash flows arrive until maturity, so it seems no tax is due.
Fix: In many jurisdictions the discount accretes and is taxed annually. Use the rule the question gives.
Believing tighter covenants always benefit everyone.
Covenants are described as protective.
Fix: They help bondholders but limit issuer flexibility, so the issuer may demand a trade-off.

Worked examples

Example 1

Which of the following is a negative covenant in a bond indenture? A) The issuer will maintain insurance on its pledged assets. B) The issuer will not issue additional debt above a stated debt-to-equity ratio. C) The issuer will pay interest on each scheduled date.

Show the solution

Find the verb in each option.
A says 'maintain', which is something the issuer must do: affirmative.
C says 'pay', also something the issuer must do: affirmative.
B says 'will not issue' above a limit, which restricts an action: negative.

Answer: B

Example 2

An investor in a 35% tax bracket compares a tax-exempt municipal bond yielding 4.2% with a taxable corporate bond of similar risk. Which taxable yield makes the investor indifferent? A) 2.73% B) 4.20% C) 6.46%

Show the solution

Taxable-equivalent yield = tax-exempt yield ÷ (1 − tax rate).
1 − 0.35 = 0.65.
4.2% ÷ 0.65 = 6.4615%, about 6.46%.
Check: 6.46% × 0.65 = 4.20%, so after-tax yields match.
Option A (4.2% × 0.65 = 2.73%) applies the formula in the wrong direction.

Answer: C) 6.46%

Exam tips

Questions often give a covenant in plain words. Classify it by the verb: must do versus must not do.
Expect a question on the trustee's role. The trustee acts for bondholders, not the issuer.
For tax-exempt comparisons, do the division, then check by multiplying back. It takes seconds.
Eliminate options that reverse direction, such as stating that negative covenants favor the issuer.
Questions follow the stated tax rules; do not bring in outside country-specific rules.

Practice questions from Fixed-Income Instrument Features

Legal, Regulatory and Tax Considerations: frequently asked questions

What is the difference between affirmative and negative covenants?

Affirmative covenants require the issuer to take actions, such as paying interest on time or maintaining insurance. Negative covenants restrict actions, such as taking on more debt or paying large dividends. Negative covenants limit the issuer's flexibility more.

What is a bond indenture or trust deed?

It is the legal contract between the issuer and bondholders. It states the bond's terms, covenants, collateral and the rights of each party. A trustee usually enforces it on behalf of investors.

How is original issue discount taxed?

In many jurisdictions the discount is treated as interest that accrues over the bond's life and is taxed each year, even though cash comes only at maturity. The exact rule varies by country, so use the rule given in the question.

Why do municipal bonds have lower yields?

In some markets, such as the United States, interest on many municipal bonds is exempt from tax at the national level. Investors accept a lower stated yield because the after-tax return can match or exceed that of a taxable bond.