[slaw]

Are tax deductions really subsidizes?

[butlerm]

Whether tax deductions are subsidies or not depends on whether they are targeted at and benefit particular industries or special interests in a way that others do not qualify for.

[sigilis]

By definition, yes. The government are reducing the costs of doing something through a special dispensation, which is a subsidy.

[OhMeadhbh]

I guess if you never plan to pay your taxes, then maybe they aren't.