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I have resigned from an LLC that I established in 2004 with 2 friends and my wife.  Very small, shoestring business, but one that is still functioning.  

I contributed $8,000 as a no interest loan to get the business started in 04.  We have been filing K-1's every year since.  For the most part our K-1's have shown small losses (I retained 10% of the company and my wife has 4%.  Last year my profit shown on K-1 was the largest ever $686.

While we paid taxes on our share of profits and filed losses over the years, all funds have remained with the company.

I resigned from the Company on Jan 1,2019.  The most the Company could repay me on the original loan of $8,000  was $4,000.  I accept that amount as final payment and transferred my 10% to the other 2 partners.   My wife retains her 4%.

I took a $4,000 loss from this LLC.  How can I enter that as a business loss on my 2019 taxes?  Neither the original loan nor my loss has ever been recorded on my K-1's by the firm that does the taxes for this business.