a person who trades by himself/herself without the use of a company structure or partners and bears alone full responsibility for the actions of the business. Glossary of Business Terms
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The sole promoter has unlimited liability. In other words, the sole promoter is fully liable for the debts of the business. London Stock Exchange Glossary
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sole trader UK US noun [U] LAW
► SOLE PROPRIETOR(Cf. ↑sole proprietor): »
I have a successful consultancy business but am a sole trader.
Financial and business terms. 2012.