Am I allowed to forego paying taxes until the end of the year if I have a normal paycheck?

I get a normal paycheck and they take out taxes for me. That makes it easy at the end of the year to file taxes with my W2, and usually I get a small refund.

But I would rather take care of that tax situation on my own and keep that money all year and pay my tax bill during tax season. Is this legal, and if so how do I go about approaching my payroll people about changing this without them having a mental break down?