Certificates of Participation

A certificate of participation (COP) is a municipal security representing the investor’s share of lease payments made by a public entity. By financing assets through leases rather than bonds, a government can sidestep voter approval requirements and constitutional debt limits, making COPs a tool for building infrastructure faster and with less political friction.

The structural trick: lease instead of bond

The muni bond market requires consent—voter referendums, debt-ceiling checks, legislative approval. These safeguards exist to prevent profligacy, but they also slow things down. A school district that needs a new gymnasium might wait years for a bond vote.

Enter the COP. A financier (often a bank) buys or builds the asset on behalf of the municipality and leases it back. The municipality makes annual lease payments. The financier (or more commonly, investors in a trust backed by the lease) receive those payments as interest and principal. To the accountant’s eye, the municipality has a lease obligation, not a bond debt, so it may not count against debt limits.

To the economist’s eye, it is debt. The municipality has committed to multi-year cash outflows. The credit risk is the municipality’s ability to pay. But structurally, it’s a lease, and that legal distinction unlocks financing that a direct bond issuance would block.

Why the voter-approval loophole matters

Many states and municipalities have constitutional or statutory debt limits. A city council can borrow up to, say, 5% of assessed property value. Bond debt counts against this cap. Lease obligations often do not—or do so only after a lag, or in a separate accounting bucket.

This is not accidental. States enacted debt limits to constrain political borrowing. But elected officials, when faced with infrastructure deficits and voter reluctance to approve bonds, found COPs attractive. A city can use COPs to finance a new civic center, a parking structure, or a fleet of garbage trucks without waiting for a referendum.

The political economy is worth noting: COPs allow politicians to build without asking. In benign times, this accelerates useful infrastructure. In reckless times, it enables deficit spending under another name. The credit-rating agencies watch COP volumes closely as a sign of fiscal stress; if a city is churning out COPs, it may be nearing true debt-service limits.

The lease payment mechanics

A typical COP has a 15- to 25-year amortization. Annual lease payments are set to cover interest, principal, and often a reserve fund. The payment schedule is front-loaded on interest (like a mortgage), so the municipality pays more interest in early years.

If the underlying asset depreciates or is retired before the lease ends, the municipality still owes the balance. That’s the credit risk for investors: the municipality has a fixed obligation regardless of asset value. A city might lease computers, and if the computers become obsolete, it still pays. A school district leases a building, and if enrollment collapses, it still pays.

This is why COPs, like other municipal-bond debt, depend heavily on the issuer’s general credit quality. The underlying asset is collateral in name only. If the issuer defaults, investors recover what they can from the collateral, but it may cover only a fraction of the loss.

The trustee and the trust structure

COPs are typically issued through a trust structure. The municipality enters into a lease with a private entity (the “lessor,” often a special-purpose company). The lessor borrows by issuing securities—the COPs—through a trustee. Lease payments flow from the municipality to the trustee, which distributes them to COP holders.

This indirection has benefits: it isolates the municipality’s other creditors from the lease cash flow, and it simplifies bookkeeping (the trustee can aggregate multiple lease programs). But it adds costs: trustee fees, trustee indemnification, legal fees. A large school district might issue $100 million of COPs and spend $500,000 a year on administrative overhead.

Tax treatment and the alternative minimum tax

COPs are municipal securities, so their interest is federally tax-exempt (assuming the lease serves a public purpose). But COPs are scrutinized by the IRS as potential workarounds to the public-purpose test. If the underlying asset is truly for private use, or if the “public” entity is a thinly capitalized municipal corporation set up solely to enable corporate tax avoidance, the IRS may challenge the exemption.

In practice, most COPs pass muster. A school-district gymnasium is public. A city library is public. But a COP for a privately operated waste-management facility, where the city outsources the function, sits in greyer territory. Some accountants argue the COP is tax-exempt; others advise clients that the exemption is defensible but not certain.

Like private-activity-bond, some COPs trigger alternative minimum tax considerations, though COPs are generally less problematic than private-activity bonds on this front.

Rating and default experience

COPs typically receive investment-grade ratings from the agencies (Moody’s, Fitch, S&P). A highly-rated city—San Francisco, Boston, Toronto—might float COPs at AAA or AA spreads. A weaker credit—a declining industrial town—pays a wider spread.

Default on COPs is uncommon but not unheard of. When a municipality faces severe stress—a pension crisis, a tax-base collapse, mismanagement—it may default on both bonds and COPs. In the early 2000s, some school districts and municipalities worked through COP defaults, often by re-leasing the asset at a different cost or renegotiating terms. Recovery rates have been mixed; investors in subordinated COPs have sometimes lost 20–30% or more.

COPs versus bonds: the comparison

From an issuer’s standpoint, COPs are attractive if:

• The public wants infrastructure but won’t approve a bond.
• The municipality is at its debt limit but not its lease capacity.
• The asset is not truly permanent (it’ll be replaced in 15 years anyway).

From an investor’s standpoint, COPs are less attractive than comparable-rated general-obligation municipal-bond debt, because:

• The asset underlying a COP can deteriorate, leaving investors with collateral worth less than the debt.
• COPs are legally junior to the municipality’s general obligations.
• They introduce structural complexity (trustee, lessor).

But COPs can offer yield pickup for investors willing to accept the trade-off, and they serve the public interest by enabling infrastructure when political constraints block bond votes.

The modern landscape

The COP market is stable but not expanding rapidly. States have tightened rules around debt-limit avoidance, and credit-rating agencies now require clearer disclosure of COP-equivalent debt when rating an issuer. The low interest-rate environment of the 2010s reduced the financial pressure that made COPs attractive; municipalities had easier access to cheap bond financing.

But COPs remain a fixture of municipal finance. A school district might still prefer a $50 million COP to a five-year wait for a bond referendum. A city might use a COP for a utility project to avoid reducing the debt capacity available for other uses.

See also