Learn how to file taxes for your side hustle, from reporting income and claiming deductions to paying self-employment taxes and avoiding IRS penalties.

Springer Nature is a signatory of the San Francisco Declaration on Research Assessment (DORA). Because small numbers of highly cited articles can have outsized influence on certain citation measures ...

Objective To determine the effectiveness of physical activity interventions involving mobile applications (apps) or trackers with automated and continuous self-monitoring and feedback. Design ...

Discover how book-entry securities work, their advantages over paper certificates, and their role in modern investment. Learn about ownership recording and safer transactions.