TY - JOUR AU - Feenberg,Daniel R. AU - Poterba,James M. TI - Which Households Own Municipal Bonds? Evidence From Tax Returns JF - National Bureau of Economic Research Working Paper Series VL - No. 3900 PY - 1992 Y2 - July 1992 UR - http://www.nber.org/papers/w3900 L1 - http://www.nber.org/papers/w3900.pdf N1 - Author contact info: Daniel R. Feenberg National Bureau of Economic Research 1050 Massachusetts Avenue Cambridge, MA 02138 Tel: 617/588-0343 Fax: 617/868-2742 E-Mail: feenberg@nber.org James M. Poterba Department of Economics MIT, E52-350 50 Memorial Drive Cambridge, MA 02142-1347 Tel: 617/253-6673 Fax: 617/258-7804 E-Mail: poterba@nber.org AB - This paper uses data from 1988 federal income tax returns, which asked taxpayers to report their tax-exempt interest income as an information item, to analyze the distribution of tax-exempt asset holdings. More than three quarters of the tax-exempt debt held by households was held by those with marginal tax rates of 28% or more. The paper reports two measures of the average marginal tax rate on tax-exempt debt. The first measures the increase in taxes if a small fraction of each taxpayer's exempt interest income were converted to taxable interest. This weighted average of 'first-dollar" marginal tax rates was 25.8%. A second calculation finds that if all tax-exempt interest were reported as taxable interest, taxes would rise by 27.6% of the increase in taxable interest. Many taxpayers who have substantial tax-exempt interest receipts, but low first-dollar marginal tax rates, would be driven into higher tax brackets if the exemption were eliminated but their portfolios remained the same. ER -