I should have made it clear that the instruction I posted was for preparers of Form 1099-B, that's not directed at taxpayers.  If you have a wash sale loss situation you are supposed to report it, even if it isn't reported to you.   In your situation you should adjust your taxable sale to reduce the amount of the loss.  When you buy replacement shares in the wash sale window you defer the amount of the loss in a ratio to number of shares sold at a loss vs. number of replacement shares.  So if you sell 100 shares at a loss of $800 and buy 25 replacement shares in the wash sale window you'd report only 3/4ths of the loss.  I'm not sure exactly how the amount gets adjusted when you buy an option on the stock that was sold; my guess is that the number of shares covered by the contract would be used to calculate the ratio. ... View more

Box 1g. Wash Sale Loss Disallowed Wash sales. Report wash sale loss amount disallowed. You must report any loss disallowed under section 1091 if both the sale and purchase transactions occur in the same account with respect to covered securities with the same CUSIP number. You are permitted, but are not required, to report in box 1g all loss disallowed under section 1091. For example, you may report a disallowed loss even though a security is sold in one account and repurchased in a different account.   And of course the broker may not have any idea that a wash sale loss was incurred if the purchase of the replacement shares happens in an account at a different financial institution. ... View more

If you didn't have to file Schedule D then the most common situation where this arises is that you didn't have any security sales of your own but simply recorded capital gains distributions reported on Form 1099-DIV.  If you still have those 1099-DIVs, (you should have, attached to your paper copy of your 2017 income tax return), you might simply look at those. ... View more

"Can I open my form 8949 in Turbotax and modify the required bases? Or do I need to do something else? Please post a link to any article that explains the process."   To answer your actual question: Yes, you can do that in "forms mode" if you are using a desktop product.  To get the "correct" presentation here you'd enter your adjustment in column (g) and enter a "W" in column (f).  This might prevent e-filing if you are forced to "override" amounts and codes that are already there, but should not pose a problem if you're simply filling in blank fields.   If you're using an online product then the forms aren't available to you for direct entry but you can accomplish what you're trying to do using "interview mode."  Go back to the sale where you want to make the wash sale adjustment and edit the sale.  Click on the "I'll enter additional info on my own" blue button and on the next page enter your adjustment in the "Wash sale loss disallowed" box.  That will correctly report the trade on Form 8949. ... View more

Your income tax return will include your W-2 income on the first line - "wages, salaries, tips, etc." - and will also include Schedule C where your independent contractor income and expenses will be totaled for inclusion in your Adjusted Gross Income.  You might need to use TurboTax Self-Employed (online) or TurboTax Home & Biz (desktop) next year.  Apparently the "lesser" versions of TurboTax's online products can produce a Schedule C but only if you don't take any expenses against that income. ... View more

What did you download?  The actual tax file (.tax2018) or a PDF of your income tax return?   When you go to "print" your income tax return - resulting in a PDF - you're asked how much detail you want to include.  You can go from the bare-bones - just the forms and schedules you'd actually mail to the IRS - up to a full-blown package that includes absolutely every worksheet, schedule and form that TurboTax put some information on.  The latter can run very, very long while the former, for most people, amounts to less than a dozen pages.  Perhaps that explains what you're seeing. ... View more

And there's frequently a tax penalty associated with creating an LLC, not a benefit.  California charges every LLC an $800 dollar franchise tax every year, even if the LLC loses money.  Make more than $250,000 and the state tacks on additional "fees." ... View more

Boy, I just can't see how a brokerage firm could get a matured bond proceeds wrong.  It's simply the face amount of the bond, right?   If you're really confident that you've got this all correct then one approach could be to leave the proceeds alone and use whatever basis figure you need to get your gain/loss properly stated.  That does eliminate the possibility of the IRS's computers flagging the transaction as "proceeds don't match" and as long as you have your gain/loss properly stated the IRS can't really lay a finger on you.  ... View more

Everything else being equal I'd expect the 1099-B proceeds amount to be correct.  Is there any chance that the sale originated from some sort of "corporate action" - like a stock plus cash merger - where there can be some differences in how reporting is handled from one broker to the next?  What stock was sold? ... View more

"Do I NEED to do that?" Probably, though you'll need to figure that out.  This is a user to user forum and nobody here can see your income tax return or your computer screen.   Form 8453 - https://www.irs.gov/pub/irs-pdf/f8453.pdf - covers situations where you e-file but then need to send additional information, on paper, to the IRS.   One common situation - I'd guess that it's the most frequent situation - is where you enter your security trades in "summary" form, simply listing dollar amounts of proceeds of sales and cost basis without listing out each and every trade.  In that case you'd need to use Form 8453 to mail to the IRS the required trade-by-trade details.  Any chance that's your situation? ... View more