Corporate bonds and treasury bonds both hand you a fixed schedule of payments in exchange for lending money today, but the borrower on the other end is a very different kind of risk. The government can raise taxes or print currency to make good on a treasury; a company can go bankrupt and leave bondholders fighting over what is left. That gap in risk is exactly why corporate bonds pay more, and understanding the size of that gap is the whole game. This is general information, not investment advice — confirm current yields and ratings before buying.
What changed in 2026
- Credit spreads (the extra yield corporates pay over treasuries) kept moving with the economic cycle — narrowing when investors feel confident, widening fast when they do not. Check current spreads rather than assuming a fixed gap.
- More retail investors bought individual corporate bonds directly through brokerages rather than only through bond funds, as commission-free access expanded.
- Rating agencies continued flagging sector-specific stress in pockets of the high-yield market; a strong overall market does not mean every issuer is healthy.
Why corporates pay more
Every corporate bond carries default risk that a treasury does not: the possibility the company cannot make its payments. Bond rating agencies grade that risk, from investment-grade (lower risk, lower extra yield) down through high-yield or "junk" (higher risk, higher extra yield). The gap between a corporate bond's yield and a treasury of the same maturity is called the credit spread, and it is the market's real-time read on how risky that borrower looks.
Liquidity and simplicity
Treasuries trade in one of the deepest, most liquid markets in the world, with a handful of maturities that are easy to compare directly. Corporate bonds are far more fragmented — thousands of issuers, dozens of maturities each, and many individual bonds that trade thinly, meaning the price you get if you need to sell early can be less predictable than a treasury's.
Comparing the two
| Feature |
Corporate Bonds |
Treasuries |
| Default risk |
Real, varies by issuer and rating |
Essentially none |
| Yield |
Higher, scales with risk |
Lower, baseline "risk-free" rate |
| Liquidity |
Varies, often lower |
Very high |
| State tax on interest |
Usually taxable |
Usually exempt |
| Diversification need |
High — spread across issuers |
Low — one issuer type |
Building a mixed allocation
Most fixed-income portfolios blend both: treasuries (and often brokerage CDs) for the safe, liquid core, and a slice of investment-grade or high-yield corporates for extra income where the risk is deliberate and sized appropriately. A single corporate bond default can wipe out years of extra yield earned, which is why diversification across issuers matters far more here than it does with treasuries.
How much to tilt toward corporates usually comes down to time horizon and how much of the portfolio is already carrying equity risk elsewhere. A retiree drawing down savings often wants the treasury side to dominate, since the whole point of that allocation is dependable, low-drama cash flow. A younger investor with decades to ride out a downturn can afford a larger corporate sleeve, treating the extra yield as compensation worth collecting over time. Either way, check the specific credit rating and sector concentration of any corporate bond fund before assuming it behaves like a simple, uniform basket — some "investment grade" funds drift lower in quality than the label suggests.
FAQ
Are all corporate bonds risky?
No. Investment-grade corporate bonds from stable, large companies carry modest extra risk over treasuries. High-yield bonds carry meaningfully more.
Why not just buy treasuries and skip the risk?
You can, but you give up the extra yield corporates offer. The right mix depends on how much risk you want to take for how much extra return.
Does a bond fund solve the diversification problem?
A broad corporate bond fund spreads exposure across many issuers automatically, which reduces single-company risk compared to holding a handful of individual bonds.
Do corporate bonds default often?
Investment-grade defaults are rare historically; high-yield defaults happen more often, especially during recessions. Confirm current default-rate data before assuming either extreme.
Where to go next
For more fixed-income comparisons, see treasury bills vs bonds, what is a zero-coupon bond, and what is a brokerage CD.