Sunk cost refers to past expenditures for a given activity that are typically irrelevant in whole or in part to future decisions. The “sunk cost fallacy” is an attempt to recoup spent dollars by spending still more dollars in the future.

If you’re looking for help with the financials portion of your business plan, start with our article on the key elements of the financial plan.

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Bplans GlossaryBplans Glossary

At Bplans, it's our goal to make it easy for you to start and run your business. The Bplans glossary of common business terms will help you learn about key small business and entrepreneurship topics.