tax base

The city needs a strong middle class for its tax base.

The chief cause is lost value in the tax base.

In 1964 the school district had no significant tax base.

"The rest of the country and the tax base won't allow us to do more."

We're also taking into account other people who are concerned about the tax base.

A wide tax base is the best insurance against this.

New York doesn't have to choose between its tax base and clean air.

They were concerned because as the crime rate rose the tax base went down.

However, using the tax base does present problems of definition.

Given time, it might build a larger commercial tax base.