In the United States, the general rule is that all income is subject to tax, unless a specific exemption is granted (such as municipal bonds). Concurrently, deductions are limited to those specifically allowed by law (such as charitable donations or property tax over the standard deduction). | In the United States, the general rule is that all income is subject to tax, unless a specific exemption is granted (such as municipal bonds). Concurrently, deductions are limited to those specifically allowed by law (such as charitable donations or property tax over the standard deduction). |