for tax purposes

The land in question was large enough for our purpose.

However, in 1900 the building already turned out to be too small for its purpose.

Our army is being used only for its main purpose.

And those who do stay can use the money for only one purpose.

She brought you here for some purpose of her own.

Everyone wanted to use him for some purpose of their own.

So they had taken him for some purpose I could not understand.

Both of those men outside had come here for a purpose.

I can see he's with us for a purpose now.

But for a purpose of my own, I will answer your question.