(finance) A declaration of income etc. for tax purposes: a report of income, deductions, contributions, and related financial information filed by a taxpayer with a national or local tax authority, used by the authority to determine the amount of taxation, usually consisting of forms completed by the taxpayer.

(finance) Those accounting activities related to tax.

A tax levied on the carbon contents used by the burning fossil fuels, so as to discourage the production of the greenhouse gas carbon dioxide.

A rate, usually a percentage rate, at which something is taxed.

The reduction of one or more tax rates.

the value set on taxable property

The legal exploitation of tax rules to minimize tax payments.

exempt from taxation

A jurisdiction that levies low tax rates on certain economic activities, especially to attract wealthy individuals and (foreign) businesses.

(taxation, criminology) The illegal avoidance of paying tax, especially by making a false declaration of income etc.