Definition: The term 'self-employment health insurance deduction' refers to a tax provision in many countries that provides an immediate deduction for certain types of expenses associated with self-employed individuals. The purpose of this deduction is to help offset the costs that small businesses (including self-employed individuals) may incur as they operate. It can be used by small businesses to reduce their taxable income, and it also helps to boost a business's profitability. Specifically, if an individual or business qualifies for the self-employment health insurance deduction, they typically have to pay only 50% of the medical expenses associated with those services. This means that these individuals are not penalized by having to pay full medical expenses themselves, which can lead to higher healthcare costs in the long run. However, it's worth noting that there may be some restrictions or requirements on how an individual qualifies for this deduction, so it's important to check the specific rules and regulations of the country you're in.