SOUTH BEND, Ind. -- Taxes are due Tuesday by midnight, and many Michiana tax preparers are working overtime to accommodate those procrastinators. 

Liberty Tax in South Bend saw over 30 preparations on Monday and expect even more on Tuesday, and that's a small tax office.

The IRS has already received nearly 100 million tax returns, but anticipate another 35 million more by Tuesday's deadline.  

So what if you blow off that tax deadline or forget?

"If they don't get those taxes filed tomorrow and they do owe and they haven't filed an extension, then they are going to get penalized," says Steffanie Basham, the manager at Liberty Tax.  

So here are some last minute tips.  

Most places recommend that you file electronically.  

Check your numbers, math errors are easy to make.  

And several online tax services offer free e-filing if you live in Indiana and make under $58,000 a year.  

But the biggest thing you can do, file an extension if you don't think you're going to make it.  This will give you an extra 6 months to file that extra paperwork.  

Click here to see if you qualify for free e-filing of your Indiana taxes.