Deduction, exclusion, or exemption from a tax liability, offered as an enticement to engage in a specified activity (such as investment in capital goods) for

Tax liability is the payment owed by an individual, business, or other entity to a federal, state, or local tax authority. (source: investopedia.com )

A tax office is a governmental office engaged in collection of revenue through taxes. (source: http://standards.phorio.com/?t=definition&code=3817677034)

The burden ratio (usually expressed as a percentage) at which a business or person is taxed. (source: http://en.wikipedia.org/wiki/Tax_rate)

A place that a government levying a tax considers to be somebody’s home. (source: http://www.qfinance.com/dictionary/tax-domicile)

Unlawful attempt to minimize tax liability through fraudulent techniques to circumvent or frustrate tax laws, such as deliberate under-statement of taxable income or willful non-payment

Amount of income, property, or sales tax levied on an individual or business. (source: http://www.investorwords.com/8711/tax_burden.html#ixzz25gw1Vgya)

A declaration to the tax authorities of how much you have earned during a particular year, used to calculate how much tax you will have

A reduction of the income subject to tax for expenses incurred in trading or carrying on the trade or business. (source: http://en.wikipedia.org/wiki/Tax_deduction)

A reduction of the income subject to tax, for various items, especially expenses incurred to produce income. (source: http://en.wikipedia.org/wiki/Tax_deduction)