With Tax Day a week away, we answer your questions on extensions, tax prep services, and more

It's less than a week until Tax Day.

If you've waited until the last minute, you aren't alone. The Internal Revenue Service had received more than 90 million returns as of the week ending March 31, meaning about 78 million returns were still outstanding.

Here are the answers to some questions you may have as the official April 18 deadline approaches: