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Introduction
1. Preliminary work to prepare tax returns
2. Retirement, investment, and supplemental income
2.1 Social security benefits and retirement income
2.2 Sales, losses, and special capital asset rules
2.3 Capital gains and income
3. Deductions
4. Credits
Wrapping up
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2.2 Sales, losses, and special capital asset rules
Achievable IRS SEE Part 1
2. Retirement, investment, and supplemental income
Our IRS SEE Part 1 course is currently in development and is a work-in-progress.

Sales, losses, and special capital asset rules

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Sales of capital assets and securities

Definitions
Capital assets
Items that can appreciate in value, such as real estate, collectibles, stocks, bonds, and digital currency held for investment.
Cost basis (basis)
The original purchase price of an investment, adjusted for factors like stock splits, dividends, and return of capital distributions.

Capital assets include any item that can appreciate in value, such as real estate, collectible items, stocks, bonds, and digital currency held for investment. Assets that are held for one year less and sold are short-term transactions and taxed at ordinary income tax rates; assets that are sold for more than one year are long term transactions. Capital gain rates apply to long term sales. Combined capital losses are limited to $3,000 per year. The excess losses are carried over until used up.

Cost basis, also known as “basis”, is the purchase price original value of your investment. Cost basis is adjusted for stock splits, dividends, and return of capital distributions and is used to determine the capital gain or loss when the asset is sold. Basis will be discussed in more detail in Part 2-Businesses. Refer to IRS.gov for more information.

Amount realized and amount recognized

Definitions
Amount realized
The total value received from a sale or disposition of an asset.
Amount recognized
The gain or loss that is reported for tax purposes after adjustments.

Amount realized is the total value received from a sale or disposition of an asset, including cash, the fair market value of any property received, and the value of any liabilities assumed by the buyer. Amount recognized is the gain or loss that is actually reported for tax purposes. It’s calculated by subtracting the cost basis (initial purchase price plus improvements) and any expenses associated with the sale from the amount realized.

Example:

  • Chris sold a stock for $10,000; his initial cost (basis) was $2,500. Chris’s amount realized is $10,000, and his realized gain is $7,500. The amount recognized is $7,500, the taxable portion, which in this case is the same as the realized gain.

Short-term capital gain example:

  • On January 29, 2025 Johnny purchased 100 shares of XYZ stock, total 1,000. On February 20, 2025, Johnny sold the same shares for $1,700. Johnny has realized a $700 short-term gain on which he will also recognize (taxable), Johnny’s tax rate will be whatever his normal tax rate according to the amount of his taxable income.

Short-term capital loss example:

  • On February 12, 2025, Mary purchased 100 shares of XYZ stock at $5 a share, for a total of $500. On April 25, 2025, the stock went down in price to $2 a share, so Mary sold all 100 shares. Mary realizes and recognizes a short-term loss of $300. Mary will recognize a loss at her own tax rate.

Long-term capital gain examples:

  • On February 18, 2024, Esmeralda went to a yard sale and bought a silver tea set for $35. Then Esmeralda paid $85 to make a minor repair to the silver tea set before she decided to sell it. On May 13, 2025, Esmaralda sold the silver tea set for $200. Esmaralda recognized $200, which was the amount she received from the sale, but her $85 repair was added to her $35 original basis, making her adjusted basis $120. Therefore, Esmeralda recognizes (pays tax on) $80. Esmaralda will have capital gains tax treatment on the sale of the silver tea set.

  • On February 18, 2022, Michael bought 100 shares of RocketCola total of $4,000. On December 20, 2024, Michael sold all 100 RocketCola shares for $6,000. Michael has realized and recognized a $2,000 long-term capital gain. Michael will have capital gain tax treatment on this transaction.

Long-term capital loss examples:

  • On March 7, 2023, April bought 400 shares of XYZ Stock for$2,000. On April 24, 2025, she sold the same amount of shares for $1,800. April has realized and recognized a $200 long-term capital loss.

  • Bernard bought a house that needed repairs for $38,000. Five years later, Bernard gave up trying to sell it for a profit, so he sold the house for $19,000. Bernard has realized a $19,000 capital loss (but only recognizes a $3,000 capital loss limitation for the tax year and carries over the remaining amount against future capital gain.

Stock splits

Definitions
Stock split
When a company increases the number of its shares by dividing existing shares into multiple shares.

In a stock split, a company divides its existing shares into more shares. For instance, a 2-for-1 split means each share is split into two new shares. For example, if Harold owns 10 shares and the corporation declares a 2-for-1 split for its shareholders, then Harold will receive 10 more shares, bringing his total to 20 shares. The total value of your shares before and after the split remains the same. The price per share decreases proportionally to the increase in the number of shares.

Scenario:

Company: ABC Corp.
Pre-Split Price: $100 per share
Investor: Marcus owns 10 shares of ABC Corp.
Split: ABC Corp. announces a 2-for-1 stock split.

Before the split, Marcus owned 10 shares at $100 each, for a total value of $1,000 (10 shares $100/share = $1,000).

After the split, Marcus owns 20 shares (10 shares × 2=20 shares). The price per share is now $50 (the original price divided by the split ratio: $100 / 2 = $50). Marcus’s total value remains $1,000 (20 shares × $50/share $= $1,000).

On June 3, 2025, the fair market value of ABC stock rose to $70 a share, so Marcus sells 10 shares of ABC for $700. Marcus will realize and recognize a gain of $200 (10/sh × $70 /share) minus cost basis (10/share × $50/share).

Remember that Marcus still holds 10 remaining shares of ABC stock, which he can sell at a later time. Marcus’s tax treatment will depend on the length of time that he has held the shares he had sold.

Wash sales

Definitions
Wash sale
A transaction where a security is sold at a loss and repurchased within 30 days, disallowing the loss for tax purposes.

A wash sale is a transaction in which an investor sells a security at a loss and repurchases a substantially similar security op to 30 days after the sale. The wash rule applies to stocks, contracts, options, and all other types of securities and trading. The disallowed wash sale loss is added to the basis of the repurchased security.

Wash sale disallowed loss example:

On January 30, Curtis overheard a hot tip on a stock and decided to buy 1000 shares of Dit Dit Corporation for $5 a share. On February 11, the stock had lost half its value; Curtis got impatient and sold all of his shares to cut his loss. The next day, Curtis repurchased 1000 shares of Dit Dit Corporation for $2,400. Curtis will realize a $2,500 loss but can not recognize the loss for tax purposes because he had not held Dit Dit Corporation stock for at least 30 days. Sales of securities are reported on Schedule D, Form 1040, but day traders who can establish that they have earned a substantial amount of income from trading can apply to the IRS to become “day trader” status and can deduct more of their normally partial or nondeductible expenses as a deductible business expense. Sales of personal items for a profit are taxable, but if sold for a loss, are not deductible. Ordinary income tax rates apply to these transactions.

The basis of inherited securities is their fair market value at the date of death.

Mark-to-market tax rules

Definitions
Mark-to-market (MTM)
An accounting method that treats assets as sold at fair market value at the end of the tax year.

The mark-to-market (MTM) tax rules primarily apply to traders in securities or commodities who make a specific election under Section 475(f) of the Internal Revenue Code. This accounting method treats certain assets as if they were sold at their fair market value on the last business day of the tax year.

Sales of business property are either an ordinary gain or loss reported on Form 4797. Details will be discussed in part 2 of this course.

Digital Assets

Definitions
Digital assets
Assets such as cryptocurrencies and NFTs that are treated as property for tax purposes.

The Internal Revenue Service (IRS) has long taken the position that digital assets are treated the same as other property and are taxed when you receive them as payment for a transaction or when you sell them or trade them in a transaction. Like other property, digital assets are not taxed when you receive them for payment for services.

However, issues have come up when digital assets are received for other purposes, such as through forks, staking, or mining - transactions involving digital assets which as capital assets would be reported on Form 8949. Digital assets are not viewed by the IRS as securities, and the wash sale rules do not apply to digital asset transactions. Digital assets are treated as capital assets along with other capital assets for tax loss harvesting. When digital assets are received for other purposes, such as forks, mining, or staking – transactions involving digital assets which as capital assets would be reported on Form 8949 and then carried to Schedule D.

Form 1099-DA, Digital Asset Proceeds From Broker Transactions, is an IRS information return used by digital asset brokers (such as cryptocurrency exchanges) to report proceeds from sales, exchanges, and other dispositions of digital assets such as cryptocurrencies and non-fungible tokens to both taxpayers and the IRS. Taxpayers must use the information on Form 1099-DA, along with their own detailed records, to properly calculate capital gains or losses and report them on Form 8949 and Schedule D of their Form 1040.

Sales of capital assets and securities

  • Capital assets: real estate, collectibles, stocks, bonds, digital currency (for investment)
  • Short-term (≤1 year): taxed at ordinary income rates; Long-term (>1 year): capital gain rates
  • Capital loss limit: $3,000/year; excess carried forward

Cost basis

  • Original purchase price, adjusted for splits, dividends, return of capital
  • Determines gain or loss on sale

Amount realized and amount recognized

  • Amount realized: total value received (cash, property, liabilities assumed)
  • Amount recognized: taxable gain/loss = amount realized – (basis + sale expenses)

Short-term and long-term capital gains/losses

  • Short-term: held ≤1 year; taxed at ordinary rates
  • Long-term: held >1 year; taxed at capital gain rates
  • Losses: only $3,000 deductible per year; remainder carried forward

Stock splits

  • Increases number of shares, decreases price per share proportionally
  • Total value remains unchanged
  • Adjusted basis per share decreases after split

Wash sales

  • Loss disallowed if substantially identical security repurchased within 30 days
  • Disallowed loss added to basis of new security
  • Applies to stocks, options, contracts, etc.
  • Does not apply to digital assets

Reporting and special rules

  • Sales reported on Schedule D, Form 1040
  • Day traders may qualify for business expense deductions
  • Personal items: gains taxable, losses not deductible
  • Inherited securities: basis = fair market value at date of death

Mark-to-market tax rules

  • Applies to traders electing Section 475(f)
  • Assets treated as sold at fair market value at year-end
  • Business property sales: reported on Form 4797

Digital Assets

  • Treated as property, not securities, for tax purposes
  • Taxed when sold, exchanged, or received for forks, staking, mining
  • Wash sale rules do not apply
  • Report transactions on Form 8949, Schedule D
  • Form 1099-DA: reports digital asset proceeds from brokers to IRS and taxpayer

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Sales, losses, and special capital asset rules

Sales of capital assets and securities

Definitions
Capital assets
Items that can appreciate in value, such as real estate, collectibles, stocks, bonds, and digital currency held for investment.
Cost basis (basis)
The original purchase price of an investment, adjusted for factors like stock splits, dividends, and return of capital distributions.

Capital assets include any item that can appreciate in value, such as real estate, collectible items, stocks, bonds, and digital currency held for investment. Assets that are held for one year less and sold are short-term transactions and taxed at ordinary income tax rates; assets that are sold for more than one year are long term transactions. Capital gain rates apply to long term sales. Combined capital losses are limited to $3,000 per year. The excess losses are carried over until used up.

Cost basis, also known as “basis”, is the purchase price original value of your investment. Cost basis is adjusted for stock splits, dividends, and return of capital distributions and is used to determine the capital gain or loss when the asset is sold. Basis will be discussed in more detail in Part 2-Businesses. Refer to IRS.gov for more information.

Amount realized and amount recognized

Definitions
Amount realized
The total value received from a sale or disposition of an asset.
Amount recognized
The gain or loss that is reported for tax purposes after adjustments.

Amount realized is the total value received from a sale or disposition of an asset, including cash, the fair market value of any property received, and the value of any liabilities assumed by the buyer. Amount recognized is the gain or loss that is actually reported for tax purposes. It’s calculated by subtracting the cost basis (initial purchase price plus improvements) and any expenses associated with the sale from the amount realized.

Example:

  • Chris sold a stock for $10,000; his initial cost (basis) was $2,500. Chris’s amount realized is $10,000, and his realized gain is $7,500. The amount recognized is $7,500, the taxable portion, which in this case is the same as the realized gain.

Short-term capital gain example:

  • On January 29, 2025 Johnny purchased 100 shares of XYZ stock, total 1,000. On February 20, 2025, Johnny sold the same shares for $1,700. Johnny has realized a $700 short-term gain on which he will also recognize (taxable), Johnny’s tax rate will be whatever his normal tax rate according to the amount of his taxable income.

Short-term capital loss example:

  • On February 12, 2025, Mary purchased 100 shares of XYZ stock at $5 a share, for a total of $500. On April 25, 2025, the stock went down in price to $2 a share, so Mary sold all 100 shares. Mary realizes and recognizes a short-term loss of $300. Mary will recognize a loss at her own tax rate.

Long-term capital gain examples:

  • On February 18, 2024, Esmeralda went to a yard sale and bought a silver tea set for $35. Then Esmeralda paid $85 to make a minor repair to the silver tea set before she decided to sell it. On May 13, 2025, Esmaralda sold the silver tea set for $200. Esmaralda recognized $200, which was the amount she received from the sale, but her $85 repair was added to her $35 original basis, making her adjusted basis $120. Therefore, Esmeralda recognizes (pays tax on) $80. Esmaralda will have capital gains tax treatment on the sale of the silver tea set.

  • On February 18, 2022, Michael bought 100 shares of RocketCola total of $4,000. On December 20, 2024, Michael sold all 100 RocketCola shares for $6,000. Michael has realized and recognized a $2,000 long-term capital gain. Michael will have capital gain tax treatment on this transaction.

Long-term capital loss examples:

  • On March 7, 2023, April bought 400 shares of XYZ Stock for$2,000. On April 24, 2025, she sold the same amount of shares for $1,800. April has realized and recognized a $200 long-term capital loss.

  • Bernard bought a house that needed repairs for $38,000. Five years later, Bernard gave up trying to sell it for a profit, so he sold the house for $19,000. Bernard has realized a $19,000 capital loss (but only recognizes a $3,000 capital loss limitation for the tax year and carries over the remaining amount against future capital gain.

Stock splits

Definitions
Stock split
When a company increases the number of its shares by dividing existing shares into multiple shares.

In a stock split, a company divides its existing shares into more shares. For instance, a 2-for-1 split means each share is split into two new shares. For example, if Harold owns 10 shares and the corporation declares a 2-for-1 split for its shareholders, then Harold will receive 10 more shares, bringing his total to 20 shares. The total value of your shares before and after the split remains the same. The price per share decreases proportionally to the increase in the number of shares.

Scenario:

Company: ABC Corp.
Pre-Split Price: $100 per share
Investor: Marcus owns 10 shares of ABC Corp.
Split: ABC Corp. announces a 2-for-1 stock split.

Before the split, Marcus owned 10 shares at $100 each, for a total value of $1,000 (10 shares $100/share = $1,000).

After the split, Marcus owns 20 shares (10 shares × 2=20 shares). The price per share is now $50 (the original price divided by the split ratio: $100 / 2 = $50). Marcus’s total value remains $1,000 (20 shares × $50/share $= $1,000).

On June 3, 2025, the fair market value of ABC stock rose to $70 a share, so Marcus sells 10 shares of ABC for $700. Marcus will realize and recognize a gain of $200 (10/sh × $70 /share) minus cost basis (10/share × $50/share).

Remember that Marcus still holds 10 remaining shares of ABC stock, which he can sell at a later time. Marcus’s tax treatment will depend on the length of time that he has held the shares he had sold.

Wash sales

Definitions
Wash sale
A transaction where a security is sold at a loss and repurchased within 30 days, disallowing the loss for tax purposes.

A wash sale is a transaction in which an investor sells a security at a loss and repurchases a substantially similar security op to 30 days after the sale. The wash rule applies to stocks, contracts, options, and all other types of securities and trading. The disallowed wash sale loss is added to the basis of the repurchased security.

Wash sale disallowed loss example:

On January 30, Curtis overheard a hot tip on a stock and decided to buy 1000 shares of Dit Dit Corporation for $5 a share. On February 11, the stock had lost half its value; Curtis got impatient and sold all of his shares to cut his loss. The next day, Curtis repurchased 1000 shares of Dit Dit Corporation for $2,400. Curtis will realize a $2,500 loss but can not recognize the loss for tax purposes because he had not held Dit Dit Corporation stock for at least 30 days. Sales of securities are reported on Schedule D, Form 1040, but day traders who can establish that they have earned a substantial amount of income from trading can apply to the IRS to become “day trader” status and can deduct more of their normally partial or nondeductible expenses as a deductible business expense. Sales of personal items for a profit are taxable, but if sold for a loss, are not deductible. Ordinary income tax rates apply to these transactions.

The basis of inherited securities is their fair market value at the date of death.

Mark-to-market tax rules

Definitions
Mark-to-market (MTM)
An accounting method that treats assets as sold at fair market value at the end of the tax year.

The mark-to-market (MTM) tax rules primarily apply to traders in securities or commodities who make a specific election under Section 475(f) of the Internal Revenue Code. This accounting method treats certain assets as if they were sold at their fair market value on the last business day of the tax year.

Sales of business property are either an ordinary gain or loss reported on Form 4797. Details will be discussed in part 2 of this course.

Digital Assets

Definitions
Digital assets
Assets such as cryptocurrencies and NFTs that are treated as property for tax purposes.

The Internal Revenue Service (IRS) has long taken the position that digital assets are treated the same as other property and are taxed when you receive them as payment for a transaction or when you sell them or trade them in a transaction. Like other property, digital assets are not taxed when you receive them for payment for services.

However, issues have come up when digital assets are received for other purposes, such as through forks, staking, or mining - transactions involving digital assets which as capital assets would be reported on Form 8949. Digital assets are not viewed by the IRS as securities, and the wash sale rules do not apply to digital asset transactions. Digital assets are treated as capital assets along with other capital assets for tax loss harvesting. When digital assets are received for other purposes, such as forks, mining, or staking – transactions involving digital assets which as capital assets would be reported on Form 8949 and then carried to Schedule D.

Form 1099-DA, Digital Asset Proceeds From Broker Transactions, is an IRS information return used by digital asset brokers (such as cryptocurrency exchanges) to report proceeds from sales, exchanges, and other dispositions of digital assets such as cryptocurrencies and non-fungible tokens to both taxpayers and the IRS. Taxpayers must use the information on Form 1099-DA, along with their own detailed records, to properly calculate capital gains or losses and report them on Form 8949 and Schedule D of their Form 1040.

Key points

Sales of capital assets and securities

  • Capital assets: real estate, collectibles, stocks, bonds, digital currency (for investment)
  • Short-term (≤1 year): taxed at ordinary income rates; Long-term (>1 year): capital gain rates
  • Capital loss limit: $3,000/year; excess carried forward

Cost basis

  • Original purchase price, adjusted for splits, dividends, return of capital
  • Determines gain or loss on sale

Amount realized and amount recognized

  • Amount realized: total value received (cash, property, liabilities assumed)
  • Amount recognized: taxable gain/loss = amount realized – (basis + sale expenses)

Short-term and long-term capital gains/losses

  • Short-term: held ≤1 year; taxed at ordinary rates
  • Long-term: held >1 year; taxed at capital gain rates
  • Losses: only $3,000 deductible per year; remainder carried forward

Stock splits

  • Increases number of shares, decreases price per share proportionally
  • Total value remains unchanged
  • Adjusted basis per share decreases after split

Wash sales

  • Loss disallowed if substantially identical security repurchased within 30 days
  • Disallowed loss added to basis of new security
  • Applies to stocks, options, contracts, etc.
  • Does not apply to digital assets

Reporting and special rules

  • Sales reported on Schedule D, Form 1040
  • Day traders may qualify for business expense deductions
  • Personal items: gains taxable, losses not deductible
  • Inherited securities: basis = fair market value at date of death

Mark-to-market tax rules

  • Applies to traders electing Section 475(f)
  • Assets treated as sold at fair market value at year-end
  • Business property sales: reported on Form 4797

Digital Assets

  • Treated as property, not securities, for tax purposes
  • Taxed when sold, exchanged, or received for forks, staking, mining
  • Wash sale rules do not apply
  • Report transactions on Form 8949, Schedule D
  • Form 1099-DA: reports digital asset proceeds from brokers to IRS and taxpayer

More from Retirement, investment, and supplemental income

  • Social security benefits and retirement income
  • Capital gains and income