As your life changes, so does the set of tax rules that affect you. Read about new tax opportunities to embrace and pitfalls to avoid as your life changes.

If you are selling your primary home, the tax law allows you a very generous exclusion for the profit you have made. In fact, most home sales escape taxation altogether. So when you sell your home, you'll probably find packing up and unpacking in your new home to be a much harder task than calculating your income tax bill from the sale. There's a good chance, in fact, that you won't even have to report the transaction to the IRS.

How do I calculate my profit?

From the sales proceeds, you subtract your adjusted tax basis in the home to determine your profit or loss. Your adjusted basis is basically the original cost of the home plus the cost of capital improvements you've made, such as a new roof, a remodeled kitchen, a swimming pool, or central air conditioning. If you sold a home before mid-1997 and rolled over profit from that sale in the home you just sold, your basis is reduced by the amount of that untaxed profit.

How much gain can I exclude?

You can treat as tax-free up to $500,000 of the profit from the sale if you're married filing jointly or up to $250,000 if you're single. (If you sold for a loss, though, you cannot take a deduction for the loss.) You can use this exclusion every time you sell your primary home, as long as you own and live in the home for two years and haven't sold another home in the last two years. If the home-sale exclusion doesn't wipe out all your profit, the excess gain is reported on Schedule D with your other capital gains and losses.

How do I qualify to claim the home-sale exclusion?

There are three tests you must meet in order to exclude the gain from the sale of your main home:

Ownership: You must have owned the home you are selling for at least two years (730 days or 24 full months) during the five years prior to the date of your sale.

Use: You must have used the home you are selling as your principal residence for at least two of the five years prior to the date of sale.

Timing: You have not excluded the gain on the sale of another home within two years prior to this sale.

• You must file a joint return.
• You or your spouse, or both of you must own the house for the requisite time.
• You and your spouse must have lived in the house for the requisite time.

What if I don't fully satisfy all the tests for the exclusion?

If you don't meet the ownership or use tests, your gain generally is taxed as short-term or long-term capital gain, depending on whether you owned the home for less or more than one year, respectively. But there's a special rule that allows you to use a portion of the $250,000 or $500,000 exclusion if you needed to sell your home because of a change of employment, a change of health or because of other unforeseen circumstances.

• Divorce
• Multiple births from the same pregnancy
• Broken engagement of a couple who jointly bought a home

For example, assume you are single and sold your primary home one year after you bought it due to a job change. Say your profit was $30,000. Since you lived there for one-half the requisite period, you are entitled to claim half of the $250,000 exclusion, or $125,000. Thus, none of your $30,000 profit is taxed.

Do I have to report the home sale on my return?

You generally do not need to report your home sale on your income tax return, as long as you did not receive a Form 1099-S, Proceeds from Real Estate Transactions, from the real estate closing agent (that is, a title company, real estate broker, or mortgage company). To avoid getting this form, you must certify that you meet the ownership, use and timing tests we noted earlier.

The tax code has long favored home ownership by providing generous tax benefits to taxpayers who own homes. The most significant tax benefit typically involves the sale of your home.

You can get a partial exclusion based on the percentage of the two-year period that the ownership and use requirements are met, provided the sale is due to: