Should I report a loss when a company went to bankruptcy with my investment

[SundayInSalem]

You can claim a bankruptcy loss as either a business or non-business bad debt.

Business bad debt

You will have a business debt if the investment was closely tied to your business and your primary motive for incurring the debt was business related. 

Non-business bad debt

Otherwise, you will have a non-business bad debt. A non-business bad debt is treated the same as a capital loss, meaning you can deduct up to $3,000 per year after subtracting out all your capital gains. Any additional amounts will be carried over into the next year.

Non-business bad debts must be totally worthless to be deductible. You can't deduct a partially worthless non-business bad debt.

For more info see TurboTax’s How to Report Non-Business Bad Debt on a Tax Return and IRS Tax Topic No. 453 Bad Debt Deduction.

[Mike9241]

what type of company did you invest in?  if a partnership or s-corp, you may need to wait for a k-1 because info reported on that will affect the loss you can deduct. if a C-Corporation the loss gets reported on schedule D/form 8949