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In case you haven't noticed the incredibly long lines at the post office, Wednesday is tax deadline day, and midnight will officially put an end to a challenging tax season.
If you're one of the major procrastinators who put off paying your taxes until the last minute and now you're finding there is no way you'll get them done in time, you need to file an extension. But if you owe taxes, you still are required to pay 90 percent of your tax bill, or face late-payment penalties of 0.5 percent a month…