I registered a sole proprietorship in 2017 and had start up business expenses. However I had zero revenue or income from it. What forms do I need to fill out, if any?

[giam2012]

I also have a standard w2 job.

[ScottT]

Yes, you may be able to deduct your startup business expenses even though you didn't earn any income. The deduction is reported on Form Schedule C of your Self-employed business expenses, which will be filed with your personal taxes. 

"How these expenses are handled:

Up to $5,000 of startup costs paid or incurred can be deducted if the total startup costs incurred don't exceed $50,000. An election can be made to amortize costs in excess of $5,000 over a period of 15 years.

If total startup costs exceed $50,000, the excess over $50,000 reduces the amount you may deduct. For example: If you incur $52,000 worth of startup costs, you can deduct $3,000 ($5,000 - ($52,000 - $50,000 = $2,000)) and amortize the remaining $49,000 over at least 15 years."

See helpful links on business startup costs and expenses below.

Startup Tips FAQ

IRS Business Expenses