数据与研究

fixed-income-municipal

Name: fixed-income-municipal
Author: joellewis

joellewis/finance_skills

Analyze municipal bonds including tax-equivalent yield calculations, GO vs revenue bond evaluation, and muni credit analysis. Use when the user asks about municipal bonds, tax-exempt income, tax-equivalent yield, AMT bonds, callable bonds, yield-to-worst on munis, or muni credit quality. Also trigger when users mention 'muni bonds', 'tax-free bonds', 'state tax exemption', 'general obligation', 'revenue bonds', 'Build America Bonds', 'muni yield ratio', 'de minimis rule', or ask whether munis make sense for their tax bracket.

668 次安装
218 星标
收录于 2026.02.19

安装命令

$ npx skills add https://github.com/joellewis/finance_skills --skill fixed-income-municipal

SKILL.md

Fixed Income — Municipal

Core Concepts

General Obligation (GO) Bonds

Backed by the full faith, credit, and taxing power of the issuing municipality. The issuer pledges to use any available revenue source (property tax, income tax, sales tax) to repay bondholders. GO bonds typically require voter approval and are considered safer due to the broad taxing pledge.

Revenue Bonds

Backed solely by the revenue generated from a specific project or source — toll roads (toll collections), water/sewer systems (utility fees), hospitals (patient revenue), airports (landing fees, terminal rents). Revenue bonds typically carry higher yields than GO bonds of comparable maturity and credit quality because of the narrower revenue pledge.

Tax-Equivalent Yield (TEY)

The core calculation for comparing municipal bonds to taxable alternatives:

Federal only: TEY = Muni Yield / (1 - federal_marginal_rate)

Federal + state (for in-state munis): TEY = Muni Yield / (1 - federal_rate - state_rate × (1 - federal_rate))

This converts a tax-exempt yield to the pre-tax yield a taxable bond would need to offer to match the muni's after-tax income.