Thank you for very helpful information. I have tried with the method suggested in this thread, but have run into a problem/question. Below is what I did in TurboTax.
1. I traded SVXY last year and have made some gains from the transactions. Just got K-1 for it, and both cell L "Current Year Increase" and cell 11 "Other Income" show a sizable figure, which are almost the same. I added up all the "accumulative adjustment to tax basis" cells and they add up exactly to the number in cell L.
2. I entered all information on K-1 in TurboTax under the K-1 section. This significantly increased my calculated tax for both federal and state (TurboTax shows 'in progress' numbers of calculated tax owed while you enter information, and after entering K-1 info, those numbers went up significantly).
3. I manually added a transaction under the 'Stock, bond etc.' section in TurboTax in order to adjust the tax basis on 1099B (to not count the same income twice). I entered the number in cell L of K-1 as the price paid, and entered 0 as sale amount. This reduced my stock income by the amount of cell L.
Now the question arises. After doing all these, I was hoping the calculated tax owed will be brought back down to what it was before I started entering K-1 (step 2 above). However, the number was brought down below that original number for federal, but not for state.
Everyone has been saying in this thread that it is just moving numbers around, and the amounts will cancel each other, leaving the tax reliability unchanged after filing K-1 AND adjusting cost basis accordingly. But how come by doing so it lowered my tax liability?
The only explanation I can think of is, by moving the amoung in cell L from 1099B to form 6781 (a result of filing K-1), the tax rate for that amount changed, in fact, lowered. Since section 1256 contracts allow 60% long term and 40% short term tax treatment, the tax rate for the amount of cell L lowered from the ordinary tax rate that amount received when it was reported on 1099B. As a result, the federal tax is lowered, while the state tax owed doesn't really change (only by a few dollars) because state tax doesnt' distinguish between long/short term capital gain.
Are the steps I took in TurboTax correct, and if so, is my understanding of why the federal tax lowered significantly correct? (I did the math, and it confirmed my understanding of the 60/40 rule being applied to the cell L amount).
If my steps and understanding are all correct, does it mean that filing K-1 and adjusting cost basis accordingly does not 'not affect your tax liability', but could potentially lower it due to the 60/40 rule?
Many thanks for any thoughts
That would be what I would do, although again I must say I am not a tax expert so you should treat everything I say with skepticism. However, if you held shares from 2013 to 2014, then it is possible the cost basis of trades in 2013 would not be affected. It all depends on when these K-1 events happened that resulted in numbers appearing in your K-1 (if that makes sense). Usually on the K-1 it shows you a "Sales Schedule" and on that schedule there is a column that says "Cumulative Adjustment to Basis". That should show you which trades you did resulted in one of these K-1 events happening (i.e., a number gets generated on your K-1). I.e., only those trades with adjustments to basis need to be adjusted on your Schedule D (Form 8949).
My opinion on this is that if you are trading SVXY shares then no, you do not get 60%/40% tax treatment on your SVXY trades (i.e., on your Schedule D). However, SVXY might generate numbers in Box 11, C (Sec. 1256 contracts & straddles) which do get 60%/40% tax treatment. Your tax software (TurboTax, H&R Block, etc.) will generally take the numbers on the K-1 and move them onto the right forms. In this case, it should move the Box 11, C entry to From 6781, line 1. Since I never trust my tax software to get this stuff right, I always double check what it does with K-1s. In my case, I use H&R Block and it even admits during the interview process that it does not handle PTPs (Publically Traded Partnerships) correctly.
Follow your Sales Schedule and determine which transactions need adjustments to their basis. That should guide you on how to adjust your Schedule D transactions. Always report the numbers on your K-1 and make sure your tax software carries those numbers to appropriate places on your tax form. Then I think you will be good to go.
I don't have much experience with options and how they affect your taxes so I don't really have any idea on that. For the SVXY shares though, your Sales Schedule should show you when you are allowed to adjust your cost basis on individual trades.
Yes, but again the Sales Schedule will show you how to apply those numbers in terms of adjusting your cost basis on individual transactions.