An annual American tradition has come around again of people sending in tax returns at the last minute on the April 15 filing deadline.
Procrastinators in the Chicago area who don't manage to finish their returns until after business hours Monday won't have many options.
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The Chicago District of the U.S. Postal Service says only the main post office on West Harrison and Canal streets will be open until midnight. Collectors will line the street to grab returns from last-minute filers.
Other Chicago-area post offices, stations and branches will close at their regular times.
The Chicago-district postmaster, Karen Schenck, says one of the most common mistakes people make is not including enough postage on envelops with their returns.
Those envelops will be returned and those taxpayers will be considered late filers.