Where do you enter public transportation expenses for self employed that is not business travel, just every day business expense?

You are not allowed to deduct transportation expenses from your home to your place of work or business as they are considered as commuting expenses and are not deductible.

I wasn't clear, I didn't mean commuting.  Local business travel like would be charged under the vehicle expenses, but I use public transportation.  

The Schedule C does not have a line for transportation. On Schedule C, enter your transportation expenses on Line 27a Other expenses.

 

To enter your Other expenses in TurboTax:

1. On the Here's your XXX info screen, scroll down and Add expenses for this work.
2. On the First, select the expenses you know you had screen, put a check mark in Other miscellaneous expenses and Continue.
3. Back on the Here's your XXX info screen, scroll down to Other miscellaneous expenses and Start.
4. Enter each type of transportation expense (Uber, subway, Taxi, etc.)  you incurred. This detail will print out on the Schedule C, Part V Other Expenses.
5. Continue with the onscreen interview until complete.

 Schedule C Line 24a is for lodging and transportation connected with overnight travel for business while away from your tax home.

 

Other deductions that can be easily missed are advertising and promotional expenses, banking fees, and air, bus, or train fare. Restaurant meals and other entertainment costs may be written off as long as they are necessary business expenses.

• In addition, consider health insurance premiums, which in most cases represent a credit rather than a tax deduction.

Regardless of which expenses you discover that you may write off, the most important thing is to keep accurate records throughout the year.

• Save receipts, including e-mail receipts, and file or log them so you have easy access to them at tax time. 
• Not only does keeping receipts, mileage logs, and other expense records make filing taxes easier, but it also facilitates a system that allows you to track changes from year to year.