ninety-day letter

ninety-day letter definition - business

ninety-day letter

A formal notice from the IRS indicating a tax deficiency and requiring a taxpayer response within 90 days. A taxpayer receiving a ninety-day letter may dispute the tax deficiency by petitioning the tax court. Also called notice of deficiency.

The American Heritage® Dictionary of Business Terms Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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