San Francisco Government Bonds and Public Debt Financing

San Francisco's capital infrastructure — from transit upgrades to affordable housing construction to seismic retrofits of civic buildings — depends heavily on public debt financing. This page explains how the City and County of San Francisco structures, authorizes, and repays government bonds, covering the principal debt instruments in use, the approval process required under California law, the roles of specific city offices, and the boundaries between what this city-county can finance independently and what requires state or federal involvement.

Definition and scope

A government bond is a debt instrument through which a public entity borrows money from investors, agreeing to repay the principal with interest over a defined term. For San Francisco, public debt financing operates within a layered legal framework: the San Francisco City Charter sets local structural rules, California state law — particularly the California Constitution's Article XVI and the Government Code — establishes approval thresholds and debt limits, and federal tax law determines whether bond interest qualifies as tax-exempt under Internal Revenue Code §103.

San Francisco functions as a consolidated city-county, a status detailed at San Francisco Consolidated City and County, which means a single government entity issues debt on behalf of functions that elsewhere might be split between a city and a separate county government. This consolidation gives San Francisco broader issuance authority than most California cities but also concentrates fiscal risk within one administrative structure.

The San Francisco Controller's Office monitors outstanding debt obligations, while the San Francisco Treasurer-Tax Collector manages cash flows and coordinates with bond counsel and underwriters. Debt policy is also shaped by the San Francisco Capital Planning process, which evaluates multi-year infrastructure needs against debt capacity.

Scope and coverage limitations: This page covers debt instruments issued directly by the City and County of San Francisco. It does not address debt issued by the San Francisco Bay Area Rapid Transit District (BART), the San Francisco Bay Area Water Emergency Transportation Authority, or other regional bodies that operate within San Francisco's geographic boundaries but are legally separate entities. State general obligation bonds authorized by California voters are also outside this page's scope, even when bond proceeds fund projects physically located in San Francisco.

How it works

San Francisco's debt issuance follows a structured sequence:

  1. Capital need identification — City departments submit capital project requests through the annual budget and capital planning cycles coordinated by the City Administrator and the Capital Planning Committee.
  2. Debt capacity analysis — The Controller's Office evaluates existing debt service obligations against projected revenues to determine whether additional borrowing is fiscally sustainable. San Francisco's debt policy generally targets keeping general fund debt service below 3.25% of general fund expenditures (San Francisco Controller's Office Debt Policy).
  3. Board of Supervisors authorization — The San Francisco Board of Supervisors must approve the ordinance placing a bond measure on the ballot (for general obligation bonds) or authorizing revenue bond issuance for enterprise funds.
  4. Voter approval (where required) — General obligation bonds require approval by two-thirds of voters under California Constitution Article XVI, §18. Revenue bonds do not require voter approval because they are repaid from dedicated revenue streams rather than property taxes.
  5. Bond sale — After authorization, the Treasurer-Tax Collector's office, working with an underwriting team, sells bonds in public markets. San Francisco's credit ratings from Moody's, S&P, and Fitch affect the interest rate the city pays.
  6. Debt service — Repayment occurs through the annual budget. General obligation bond debt service is funded through a voter-approved property tax levy separate from the general fund property tax rate.

Common scenarios

General obligation (GO) bonds for infrastructure — San Francisco voters have approved GO bonds for earthquake safety improvements, parks, and affordable housing construction. The 2019 Seismic Safety Loan Program and the 2020 Affordable Housing bond ($600 million, approved by San Francisco voters in November 2019 (San Francisco Assessor-Recorder)) illustrate how GO bonds target long-lived physical assets whose useful life spans the repayment period. Property owners pay a supplemental tax rate, calculated annually, until the bonds are retired.

Revenue bonds for enterprise departments — The San Francisco Public Utilities Commission and the San Francisco Municipal Transportation Agency issue revenue bonds repaid from water/wastewater rates and transit revenues respectively. These bonds do not require voter approval and do not appear on property tax bills. The SFPUC's Water System Improvement Program relied substantially on revenue bonds to fund more than $4.8 billion in infrastructure upgrades (SFPUC Water System Improvement Program).

Certificates of participation (COPs) — COPs are lease-financing instruments that allow the city to acquire or improve facilities without a voter-approved debt authorization. A city-owned asset serves as collateral; investors receive proportional interest in lease payments. COPs carry slightly higher interest costs than GO bonds because they lack the security of a tax levy pledge.

Tax-increment financing (TIF) through infrastructure financing districts — State law enacted in 2015 (California Streets and Highways Code §53395 et seq.) allows the formation of Enhanced Infrastructure Financing Districts (EIFDs) that capture growth in property tax increment to repay bonds. San Francisco has explored EIFDs in connection with major development areas such as Treasure Island Development.

Decision boundaries

Choosing among debt instruments involves trade-offs along four dimensions:

Voter approval vs. administrative authorization: GO bonds require a two-thirds supermajority, making them politically demanding but granting them the strongest security pledge (the city's taxing power). Revenue bonds and COPs can be authorized by the Board of Supervisors alone but rely on specific revenue streams that can underperform projections.

Tax-exempt vs. taxable bonds: Most San Francisco bonds are structured as tax-exempt under federal law, lowering the interest rate the city pays. Certain financing purposes — notably some economic development subsidies — do not qualify for tax-exempt treatment under IRS rules, requiring taxable issuance at higher cost.

Short-term vs. long-term debt: Bond anticipation notes and commercial paper programs give the city interim liquidity for projects under development, with refinancing into long-term bonds upon project completion. Long-term bonds (typically 20–30 year maturities) spread costs across the generations of residents who will use the infrastructure.

General fund pledge vs. enterprise revenue pledge: Mixing these pledge types within a single capital program affects both the city's overall debt capacity and the fiscal resilience of individual enterprise departments. The Controller's debt policy, reviewed annually and posted at sfcontroller.org, sets formal thresholds for each category.

Readers seeking broader fiscal context can explore the San Francisco Annual Budget Process and the full overview of civic governance available at the site index.

References

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