Offer your insights or judgment on the input financial query or topic using your financial expertise. Reply as normal question answering

Net loss not distributed by mutual funds to their shareholders?
I'll try to answer using your original example.  First, let me restate your assumptions, slightly modified: The mutual fund has: Note that I say the "mutual fund has" those gains and losses. That's because they occur inside the mutual fund and not directly to you as a shareholder. I use "realized" gains and losses because the only gains and losses handled this way are those causes by actual asset (stock) sales within the fund (as directed by fund management).  Changes in the value of fund holdings that are not sold are not included in this. As a holder of the fund, you learn the values of X, Y, and Z after the end of the year when the fund management reports the values.  For gains, you will also typically see the values reported on your 1099-DIV under "capital gains distributions".  For example, your 1099-DIV for year 3 will have the value Z for capital gains (besides reporting any ordinary dividends in another box).   Your year 1 1099 will have $0 "capital gains distributions" shown because of the rule you highlighted in bold: net realized losses are not distributed.  This capital loss however can later be used to the mutual fund holder's tax advantage.  The fund's internal accounting carries forward the loss, and uses it to offset later realized gains.  Thus your year 2 1099 will have a capital gain distribution of (Y-X), not Y, thus recognizing the loss which occurred. Thus the loss is taken into account.  Note that for capital gains you, the holder, pay no tax in year 1, pay tax in year 2 on Y-X, and pay tax in year 3 on Z. All the above is the way it works whether or not you sell the shares immediately after the end of year 3 or you hold the shares for many more years.  Whenever you do sell the shares, you will have a gain or loss, but that is different from the fund's realized losses we have been talking about (X, Y, and Z).