Once you start to earn enough money freelancing online, you'll have to start paying quarterly taxes (in the USA). I read a book that suggested opening a separate bank account for taxes only (the book was Profit First by Mike Michalowicz). You store all of your tax money in there and make your payments out of it to the IRS/state. It seemed like a good idea but do you really even need a separate account for this? Wouldn't it be better to pay your taxes monthly or as you receive them (even weekly)? That way you would never have a tax debt.
Is it possible to pay them monthly or even weekly vs. quarterly?