Seriously now, you don't want to get a refund. If you get one, it means you've paid too much and the revenuers have had the use of your money without paying you any interest on it. Ideally, I would prefer to pay them nothing until April 30th, then drop the whole lump sum on them, but they won't let you do that, and I doubt I could arrange my financial affairs well enough to have the lump sum available anyway. What I try to do instead is arrange things so that I owe them as small an amount as I can, usually under $100. I'd like to end up owing them $2, because a balance of $2 or less isn't charged. That amount should really be closer to $100 though, it must cost them at least that much to process the cheque, government processes being what they are.
