Hello, where do I enter Safety Box credit?

You said "safety box credit", but do you mean a deduction for safe deposit box rental?  i.e., an investment expense?

If so, do this:

• Open your return (if not already open).
• In the left menu column, click on TAX TOOLS, then TOOLS.
• In the Tools window, choose TOPIC SEARCH.
• In the search line enter safe deposit without quotes.
• In the topic list, you should then see safe deposit box highlighted, or you can select it.
• Then click GO.
• The next screen should be "Other Investment Expenses."
• On the next screen you should see a place to enter "Safe Deposit Box Fees."
  

The option is "Topic List", not "Topic Search".  I couldn't find safe box on the list.

The prior posts were from several years ago and may not be the same for 2019.  When they migrated to this new forum layout in 2019 very old posts got dated with June 2019 dates.

As noted by VolvoGirl, prior posts in this chain are now obsolete.

The expense of maintaining a safe deposit box used to be an allowable deduction when you itemized deductions on your personal income tax return.

However, this and other miscellaneous deductions that were subject to the 2% limitation have been repealed for tax years 2018–2025.