Don't Lose Your Shirt on Mutual Fund Sales (2024)

When you sell all or part of a mutual fund, the way you report that transaction can have a serious impact on the amount of taxes you pay at the end of the year. For those of you who are taking a passive approach to tracking your investment cost basis, there are several possible results that could end up on your upcoming tax return.

Avoiding the unexpected payment of capital gains tax can be accomplished by something as simple as changing the method that you use to track and record the cost basis for your individual holdings. When you don't sell 100% of a holding, the Internal Revenue Service (IRS) gives you several ways in which you can allocate your remaining cost basis.

Key Takeaways

  • Mutual fund investors can better manage their capital gains by changing the method used for cost basis.
  • That is, the IRS offers several ways in which you can allocate your cost basis when you're selling less than 100% of your holding.
  • There are two key ways for selecting cost basis—first-in, first-out (FIFO), and specific share identification.

Imagine that the value of the mutual funds in your non-retirement account was down over 30%. You decided to sell some of a mutual fund at a loss to cover living expenses for the year. The resulting sale produced a capital loss with plenty to carry over onto next year's tax return. However, there's more to consider. At the end of the year, you're surprised to receive a year-end Form 1099-B that says you have a taxable capital gain of $50,000. Note that it is possible to have an overall loss on a position but still have to pay taxes when you only sell a portion of the holding. Your reported cost basis could be the culprit in this unexpected capital gains statement.

Unfortunately, very few people have any idea what method they are currently using to track their cost basis. Below are the key methods for tacking cost basis.

First-in, First-Out (FIFO)

The first-in, first-out method will most likely be responsible for the unexpected taxable gains. Unless you specify that you are using another method to track your cost basis, the IRS uses this method as the default method. It assumes the first shares acquired were the first shares that you sold. For people who have been accumulating a position in a mutual fund over a long period of time, this method will usually result in the largest realization of a gain.

For example, over time, you purchased four shares of fund ABC but sold one share in 2022 to cover living expenses.

  • 1 share was purchased in 1999 for $295
  • 2 shares were purchased in 2005 for $1,286 each
  • 1 share purchased in 2015 for $797
  • The total cost basis of all 4 shares is $3,664

The end result for the 2022 sale of one share valued at $877 results in a gain of $582 ($877-$295). The painful part of this example is that the individual has a total loss on the position of $156 ($877 x 4 = $3,508 less the total cost of $3,664), which the individual has accumulated over the past 20 years.

Average Basis (Single Category)

Under the single category average basis method, you must add up the total amount that you have purchased over time. The total includes shares from reinvested dividends and capital gains. Once you have added up the total purchases, you must divide the total purchases by the total number of shares.

This average calculation provides you with a basis that you will use for all the shares. The holding period for the shares that were just sold is determined on a FIFO basis. This method is most commonly used by mutual funds companies.

Consider another example: using the same numbers as above, each share has a cost basis of $916 ($3,664 / 4). The end result for the 2022 sale of the fund at $877 is a loss of $39 ($877 - $916). While the cost basis is the average cost of the cumulative position, the character of the sale is still determined on a FIFO basis, so the sale is going to be matched to the one share purchased in 1999.

Average Basis (Double Category)

The double category average basis is a rarely used costing method. It is very similar to the single category, but it will divide the shares calculation into two parts—short-term (held one year or less) and long-term (held more than one year.) The average cost of shares in each category is then computed separately.

This method results in additional record keeping and requires that written instructions be provided to your broker in advance of the sale so the broker is able to identify which category of shares is being sold.

Thus, it is rarely used by individual taxpayers because if you are going to go through all the trouble of keeping records and identifying share categories at the time of sale, there is a better method available, requiring roughly the same amount of effort, specific share identification.

Specific Share Identification

Under this method, you are allowed to identify the specific shares that you want to sell at the time of a sale. This method is the most flexible and allows you to identify the combination of shares that will yield the most favorable tax result.

That said, this method requires you to keep thorough books and records, as the shareholder may need to prove the basis that is used in each sale. In addition, this method requires that you follow some additional formal procedures in identifying the specific lots at the time of sale.

  1. You need to specify to your broker or agent the particular shares to be sold or transferred at the time of the sale or transfer.
  2. You must receive written confirmation from your broker or agent within a reasonable time of your specification of the particular shares that were sold or transferred.

Consider, again, the fund purchases from above. Using specific share identification, investors have the flexibility to identify the specific share that they want to sell, and they harvest the largest loss. During the sale in 2022, we would prefer to realize the larger loss to offset other gains, so we sell the first of the two shares that were purchased in 2005.

The sale price is going to be the same as in our previous examples, with one share of the fund at $877. The resulting loss ends up being $409 ($877 - $1,286).

Putting It All Together

Once you have selected a method for calculating the cost basis for a particular fund holding, you generally cannot change your method to another cost-basis method without the approval of the IRS. However, you can select different methods for other funds you may own. For additional information on the four available methods, please refer to IRS Publication 564.

While all these methods seem like obscure calculations that your accountant will take care of at the end of the year, think again. Achieving the best result on an annual basis requires a proactive approach by you and your investment advisor in combination with your accountant. The benefits gained by the method you use can add to your bottom line. At the very least, sound planning will help you avoid the unexpected pain of paying taxes in a down year.

On a cautionary note, the Emergency Economic Stabilization Act of 2008 imposed complete cost-basis reporting requirements onto broker-dealers for several years. Currently, broker-dealers are only required to list the total sale values on your 1099 at the end of the year, so the purchase information on your tax return is solely reported to the IRS by you.

The Bottom Line

For those of you who receive gain/loss reports attached to your 1099, you can take heart knowing that they are only supplemental reports from your broker and that they are currently produced to give people guidance when preparing their taxes. The impact of the new legislation will mean that your brokerage firm's "guidance" will eventually be official correspondence to the IRS because your broker-dealer will eventually be required to report your capital gains directly to the IRS and to you. This change should reinforce the need to be proactive with your record-keeping, as FIFO isn't just another four-letter word.

Don't Lose Your Shirt on Mutual Fund Sales (2024)
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