👉 "Musteline" is a phrase used in the United States to refer to a specific type of tax code that requires taxpayers to be "musteline" to avoid penalties. This means that an individual or business must pay taxes on their income and earnings, regardless of whether they have any other sources of income or how much they earn. For example, if a person earns $10,000 per year but spends most of it on housing, food, and utilities, the person may be
