Corporate Bonds vs Treasuries Compared

Key Takeaways

A Treasury is one federal issuer's promise. A corporate bond is one company's promise. That single difference is the root of every other one on this page.
Corporate bonds typically yield more than a Treasury of the same maturity. The extra yield is called the credit spread, and it is compensation for taking on that company's risk instead of the government's.
Both carry interest rate risk in exactly the same way: if you sell before maturity and rates have risen, the price you get is lower. Only the corporate bond carries credit risk on top of that.
Treasury interest is exempt from state and local income tax. Corporate bond interest generally is not.
FINRA's TRACE system publishes executed corporate bond prices by CUSIP. Treasury secondary-market trades are not disseminated the same way.
A corporate bond is frequently callable, meaning the issuer can redeem it early, usually when refinancing at a lower rate helps the company. Currently auctioned Treasury notes and bonds are not.
A credit rating is one registered agency's opinion, not a guarantee. It says nothing about whether the price on offer compensates you for the risk.

What Is a Treasury Security?

A Treasury security is a debt obligation of the U.S. Department of the Treasury, issued to fund government operations and refinance maturing debt. TreasuryDirect describes Treasury notes and bonds as sold with a 100 dollar minimum purchase, in 100 dollar increments, whether bought directly at auction through a TreasuryDirect account or through a broker or bank in the secondary market. The marketable family spans bills (up to 52 weeks, sold at a discount with no coupon), notes (2 to 10 years, fixed coupon paid every six months), and bonds (20 or 30 years, fixed coupon paid every six months), alongside inflation-linked TIPS and floating rate notes. The full mechanics of each type, and how the single-price Treasury auction sets the rate every successful bidder receives, are covered in Treasury Securities Explained.

Because a Treasury is a direct obligation of the federal government rather than a single company, there is no separate balance sheet, industry cycle, or competitive position to evaluate before buying one. That is what people mean when they call Treasuries the closest thing fixed income has to a credit-risk-free benchmark: the analysis that a corporate bond demands about whether the issuer will still be able to pay in five or ten years mostly does not apply. It does not mean a Treasury's price cannot move. A Treasury note or bond bought today and sold before maturity will fetch a price that reflects whatever interest rates have done in between, exactly like any other fixed-coupon bond.

What Is a Corporate Bond?

A corporate bond is a company's written, enforceable promise to pay interest on a schedule and repay principal on a stated date. Investor.gov describes two broad categories: secured bonds, backed by specific pledged collateral, and unsecured bonds (debentures), backed only by the issuer's general promise to pay, with unsecured claims further split into senior and junior (subordinated) tiers. Where a specific bond sits in that ranking decides what a holder recovers if the company fails, and it is fixed in the bond's governing contract, the indenture, before anything goes wrong. The full anatomy of an individual bond, including par value, coupon structure, and seniority, is covered in Bond Basics, and the ranking and covenant mechanics specific to company debt are covered in Corporate Bonds: How They Actually Work.

A new corporate bond reaches the market through underwriting: broker-dealers buy the issue from the company and resell it to investors, rather than the company selling directly to the public the way the Treasury does at auction. After issuance, corporate bonds trade over the counter, dealer to dealer, rather than on a central exchange order book. Investor.gov notes that credit rating agencies assign ratings based on their evaluation of the risk that the company may default, splitting the market into investment grade and non-investment grade tiers; the mechanics of how those ratings are assigned, what an NRSRO is, and what a rating does and does not tell you are covered in Bond Credit Risk and Ratings.

Corporate Bonds and Treasuries, Side by Side

The table below lines up the structural mechanics rather than any number that changes day to day. Current yields, current spreads, and current rates all move constantly and are not reproduced here; check them at the sources linked in the References section before acting on them.

What you're comparing	Treasury security	Corporate bond
Who owes you the money	A single federal issuer, the U.S. Department of the Treasury, funding the government and refinancing maturing debt.	One company, with its own balance sheet, industry, and competitive position.
How it reaches the market	Sold directly to the public through a regularly scheduled, single-price Treasury auction.	Underwritten by broker-dealers in a primary offering, then bought and sold dealer to dealer afterward.
What decides whether you get paid	A direct obligation of the U.S. government; there is no separate company balance sheet or industry cycle behind the promise.	The issuing company's own finances, evaluated by credit rating agencies registered with and overseen by the SEC, and by where the bond ranks in the capital structure.
Finding what one last traded for	Trades among primary dealers and brokers; Treasury transactions are not publicly disseminated by price through FINRA's TRACE system the way corporate bond trades are.	FINRA operates TRACE, the mandatory reporting facility for over-the-counter fixed income trades, so a specific bond's executed prices and sizes can be looked up by CUSIP.
State and local income tax on the interest	Exempt from state and local income tax. Federal income tax still applies in full.	Generally taxable at the federal, state, and local level, under each state's own rules.
Can the issuer redeem it early	Currently auctioned Treasury bills, notes, and bonds are sold without a call feature, so the payment schedule is fixed for the security's full term.	Frequently issued with a call schedule that lets the issuer redeem the bond early, commonly when refinancing at a lower rate benefits the company.
What the yield is measured against	The benchmark itself. Other Treasury yields set the risk-free reference curve the rest of the bond market is priced from.	A credit spread over a Treasury of comparable maturity, the market's price for taking on that company's risk instead of the government's.

Two rows are worth reading together rather than in isolation. The tax exemption on Treasury interest and the credit spread on a corporate bond both move the after-tax, after-risk comparison in opposite directions, and how they net out depends on an investor's own tax bracket, state, and view of the specific issuer, not on a rule that applies to everyone the same way.

How Does Credit Risk Differ Between the Two?

Credit risk is the risk that an issuer fails to make the contracted interest and principal payments in full and on time. A Treasury security carries essentially none of it: because the Treasury is a direct obligation of the federal government, the country-level analysis a Treasury holder would need to do is fundamentally different from evaluating a single company's balance sheet, industry position, and management decisions. A corporate bond carries real credit risk, and it reaches a holder through two separate channels. The first is default itself, where recovery depends on where the specific bond ranks in the capital structure, covered above and in more depth in Corporate Bonds: How They Actually Work. The second, and far more common in practice, is repricing: when the market's view of an issuer worsens, buyers demand a higher yield to hold its bonds, and a higher required yield on a fixed coupon means a lower price today, with no payment ever missed.

Credit rating agencies exist to price the first channel. Investor.gov describes credit ratings as an evaluation of the risk that a company may default on its bonds, splitting issues into investment grade and non-investment grade tiers. The agencies that do this, Nationally Recognized Statistical Rating Organizations, are registered with and examined by the SEC's Office of Credit Ratings, which administers the rules that apply to them and publishes the list of currently registered firms. Registration is a regulatory status, not an endorsement of any particular rating's accuracy, and a rating says nothing about whether the price you are offered actually compensates you for the risk, whether the bond is liquid, or where it structurally sits if the company's corporate group includes subsidiaries with their own lenders. Bond Credit Risk and Ratings works through both channels and the ratings mechanics in full.

How Does Each One Trade After Issuance?

Neither security trades on a centralized exchange order book the way a listed stock does; both live in dealer markets. The difference is in how much of that dealer activity becomes visible to an ordinary investor before they trade. FINRA operates TRACE, the Trade Reporting and Compliance Engine, as the facility for mandatory reporting of over-the-counter transactions in eligible fixed income securities, and it covers corporate and agency bonds. A retail investor can look up a specific corporate bond's recently executed prices and trade sizes by CUSIP before placing an order, which is the most direct way to judge whether a dealer's quote is reasonable.

Treasury securities are not part of that same public reporting. FINRA describes Treasury securities as bought either directly from the government at auction or through a brokerage or bank, and if a security bought directly at auction needs to be sold before maturity, it has to be transferred to a brokerage first. Treasury secondary-market trading happens among a network of primary dealers and brokers, and it is generally considered the deepest, most continuously priced government bond market in the world by trading volume, even though individual trade prices are not disseminated to the public the way TRACE publishes them for corporate bonds. In practice this means a retail investor checking a Treasury's fair price relies on the many continuously updated quotes visible at brokers, rather than a single public trade tape, while a corporate bond investor can look at both a dealer's quote and TRACE's record of recent actual trades in that same CUSIP.

How Is the Interest Taxed?

Both are taxed on the interest received, but not identically. TreasuryDirect states that Treasury note and bond interest is subject to federal tax each year, with no state or local tax due. Corporate bond interest generally has no comparable exemption and is taxable at the federal, state, and local level, following each state's own rules for how interest income is treated. Neither Treasury nor corporate bond interest is generally exempt from federal tax the way some municipal bond interest can be; Municipal Bonds: How Muni Debt Works covers that separate exemption in depth.

For an investor in a state with meaningful income tax, the Treasury's state exemption can close some or all of a modest headline-yield gap between a Treasury and a comparable corporate bond, though the actual arithmetic depends on the investor's own marginal state rate and the size of the credit spread being compared against. It is a mechanical comparison rather than a rule about which security wins; a wide enough credit spread can still leave the corporate bond ahead after tax, and a narrow spread combined with a high state tax rate can favor the Treasury.

Can the Issuer Redeem Either One Early?

A callable bond's contract lets the issuer repay the principal before the stated maturity date, on specified dates and at specified prices written into the indenture. Corporate bonds are frequently issued with this feature, and an issuer typically exercises a call when refinancing at a lower rate would save the company money, which tends to be exactly the environment in which a holder least wants the bond redeemed early, since reinvesting the proceeds now happens at the new, lower rate. Callable Bonds and Yield to Worst works through call schedules, call protection periods, and why yield to worst rather than yield to maturity is the honest figure to evaluate on a callable bond trading above its call price.

Marketable Treasury bills, notes, and bonds sold at auction today are issued without a call feature. Their payment schedule, once set at auction, runs to the stated maturity date without the government having a contractual right to redeem early. This is a genuine structural difference: a Treasury holder never has to weigh a call schedule into the analysis, while a corporate bond holder has to check the indenture for one before assuming a bond's full coupon stream is guaranteed to run its full term.

Worked Example: Reading a Credit Spread

The numbers below are entirely illustrative, invented to demonstrate a mechanism rather than to describe any real bond, real yield, or real spread level. Both securities in the example are hypothetical: a 10-year bond with a 1,000 dollar par value and a 5% annual coupon, priced using the standard bond pricing formula with annual compounding.

Step one, a parallel move in interest rates. Suppose both a Treasury note and a corporate bond of this shape are priced to yield 5%, so both start at par, 1,000 dollars. If interest rates rise generally and the required yield on both moves to 6%, with no change in the corporate bond's credit spread, both prices fall to the same place: about 926.40 dollars. This move is interest rate risk, and it affects the Treasury and the corporate bond identically, because it depends only on the coupon and the time to maturity, not on who issued the bond.

Step two, a credit-spread widening on top. Now suppose interest rates stay put, so the Treasury note's yield stays at 5% and its price stays at 1,000 dollars. But the market's view of the corporate issuer worsens, perhaps after a ratings downgrade, and buyers demand an extra 150 basis points of credit spread on top of the unchanged Treasury yield, pushing the corporate bond's required yield to 6.5%. Its price falls to about 892.17 dollars, a second, separate decline that the Treasury never experiences, with no payment on either bond having been missed.

Isolating the two steps this way is the point of watching a bond's credit spread rather than its raw yield. The Treasury component of a corporate bond's yield moves with the whole market and says nothing about that specific company. The spread on top is the part that is actually about the issuer, and it is the number that widens when a company's own risk increases, independent of what interest rates are doing generally.

Which One Fits Which Situation?

This is a description of circumstances, not a ranking. Neither security is the universally correct place for fixed-income money; the fit depends on what an investor is trying to accomplish and how much credit work they are willing to do.

A Treasury tends to fit a situation where the investor wants exposure to interest rate movement alone, with no company-specific credit analysis required, values the state and local tax exemption, needs a security with essentially no credit risk to pledge as collateral or to match a known future liability with confidence, or is not in a position to research individual companies. A corporate bond, or more commonly a diversified fund of many corporate bonds, tends to fit a situation where the investor is seeking a higher yield in exchange for taking on assessable, single-issuer credit risk, is willing to read or pay for credit research, wants exposure to a specific company, industry, or credit-quality tier, or is building a portfolio where a fund's diversification and easier trading outweigh the appeal of a single security's known maturity date. Investment Universe places both instruments in the context of a full asset allocation.

Common Myths and Misconceptions

"Treasuries are completely risk-free." They carry essentially no credit risk, but they are not free of interest rate risk. A Treasury note or bond sold before maturity, after rates have risen, is sold at a loss relative to what was paid, exactly like a corporate bond of similar coupon and maturity.
"A corporate bond always yields more than a Treasury." Usually true in ordinary conditions, since the credit spread compensates for real risk, but the size of that spread is not fixed. It widens and narrows with the market's view of the issuer and of credit risk generally, and it is never guaranteed to be positive by any rule of arithmetic.
"A high credit rating means the bond is essentially guaranteed." A rating is one registered agency's opinion about the likelihood of repayment, evaluated at a point in time, and can be revised. It does not evaluate whether the price on offer compensates you for the risk, and it does not remove the possibility of a downgrade repricing the bond before any default occurs.
"The state tax exemption always makes a Treasury the better after-tax choice." It moves the comparison in the Treasury's favor, but by how much depends entirely on an investor's own state tax rate and the size of the credit spread being given up. A wide spread can still leave a comparable corporate bond ahead after tax in a low-tax state.
"Corporate bonds and stocks carry similar risk since both depend on the same company." A bondholder's return is capped at the contracted interest and principal; a shareholder's is not. In a bankruptcy, bondholders are creditors and are paid ahead of shareholders, which is a structurally different position even when both securities are issued by the same company. Stocks vs Bonds covers that ownership-versus-claim distinction directly.

Frequently Asked Questions

Are Treasuries completely free of risk?

No. A Treasury security carries essentially no credit risk, since it is a direct obligation of the U.S. government rather than a claim on a single company's finances. It still carries interest rate risk: if you sell a Treasury note or bond before maturity and rates have risen since you bought it, the price you receive can be below what you paid. Held to maturity, a Treasury returns exactly what its terms promised, but "risk-free" only ever described the credit dimension, never the price you'd get from an early sale.

Why does a corporate bond usually yield more than a Treasury of the same maturity?

The extra yield is the credit spread, and it exists to compensate a buyer for taking on one company's default and repricing risk instead of the government's. It also absorbs payment for the corporate bond's typically thinner secondary-market liquidity compared with Treasuries. A wider spread means the market is demanding more compensation for that specific issuer's risk; a narrower spread means the market sees less risk in it, relative to the Treasury benchmark.

Does a AAA-rated corporate bond make it as safe as a Treasury?

Not in the same way. A rating is one registered agency's opinion about the likelihood of repayment, not a guarantee, and even a top-rated corporate bond still depends on one company's ongoing finances rather than the taxing and borrowing authority of the federal government. A downgrade, an industry shock, or a change in the company's own leverage can widen that bond's credit spread and lower its price without any Treasury being affected at all.

Can I check what a specific corporate bond last traded for?

Yes. FINRA operates TRACE, the mandatory reporting facility for over-the-counter transactions in eligible fixed income securities, and publishes corporate bond trade prices and sizes that can be looked up by CUSIP. That public reporting does not extend to Treasury securities in the same way; Treasury secondary-market trading happens among primary dealers and brokers rather than through TRACE's public dissemination.

Are corporate bonds always callable?

No, but a call feature is common, particularly outside of the shortest maturities. A callable bond's indenture sets a call schedule, call prices, and often a call protection period during which it cannot be redeemed early. An issuer typically exercises a call when refinancing at a lower rate benefits the company, which is exactly the environment in which a holder would least want the bond repaid early. Currently auctioned Treasury bills, notes, and bonds are sold without a call feature.

Do I pay state income tax on Treasury interest?

No. Interest on Treasury securities is exempt from state and local income tax, though it remains fully subject to federal income tax. Corporate bond interest generally has no comparable state exemption and is taxable at the federal, state, and local level under each state's own rules. In a state with meaningful income tax, this exemption can close some or all of a modest yield gap between the two.

Which is easier to buy in small amounts?

Treasury securities, generally. TreasuryDirect states a 100 dollar minimum purchase for notes and bonds, in 100 dollar increments, whether bought at auction or through a broker. Corporate bonds are issued in minimum denominations set as a term of each security, and some minimums are set high enough to exclude small retail orders entirely, which is one reason many individual investors reach a corporate bond fund instead of buying individual issues.

What happens to each if interest rates rise after I buy?

Both fall in price, and by a similar amount if the maturity and coupon are similar, because that part of the move is interest rate risk and it does not care who the issuer is. A corporate bond can then fall further on top of that if the market also widens its credit spread, for instance after a downgrade, which is a second, separate move that a Treasury of the same maturity never experiences. Held to maturity, either security still pays exactly what its own contract promised, assuming no default.

Educational Use

This page is educational and informational. It does not tell a reader what to buy, sell, hold, or contribute, and it does not account for an individual's objectives, taxes, legal situation, benefits, debts, time horizon, or risk tolerance. The worked example uses hypothetical inputs to demonstrate a pricing mechanism and is not a market quote, a forecast, or a recommendation. Verify current rates, spreads, and product terms from TreasuryDirect, FINRA, your broker, and current primary sources before acting.

References

This guide is based on U.S. regulator and Treasury publications, each retrieved and verified on 26 August 2026:

Investor.gov: Corporate Bonds: the description of secured bonds as backed by pledged collateral and unsecured bonds (debentures) as backed only by the issuer's general promise to pay, split into senior and junior claims; and the description of credit ratings as an evaluation of default risk, split into investment grade and non-investment grade tiers.
FINRA: Bonds: the description of corporate bonds trading over the counter, TRACE as the facility for mandatory reporting of over-the-counter transactions in eligible fixed income securities, and Treasury securities being bought either directly from the government at auction or through a brokerage or bank.
TreasuryDirect: Treasury Notes: the 100 dollar minimum purchase and increment, and federal-only taxation with no state or local tax due on the interest.
TreasuryDirect: Treasury Bonds: the 20- or 30-year term and the semiannual fixed-rate interest payment schedule.
SEC: Office of Credit Ratings: the Office's role examining and monitoring credit rating agencies registered as Nationally Recognized Statistical Rating Organizations, and administering the rules that apply to them.

The bond prices in the worked example are original calculations from the stated hypothetical inputs, using the standard fixed-coupon bond pricing formula with annual compounding, to demonstrate how interest rate risk and credit spread risk each move a price independently. They are not market quotes, forecasts, or estimates for any real security. This is educational content, not personalized investment, tax, or legal advice.

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