WASHINGTON, D.C. — The arrival of tax season brings with it the announcement of the Internal Revenue Services’ “Dirty Dozen” tax scams.

Each year, the IRS issues a list of 12 common scams the public should watch out for in order to avoid making costly mistakes. Detailed descriptions of each of the scams, which occur year-round but tend to be more frequent when people fill out their tax returns, can be found online.

"We are doing everything we can to help taxpayers avoid scams as the tax season continues," IRS Commissioner John Koskinen said in a statement. "Whether it's a phone scam or scheme to steal a taxpayer's identity, there are simple steps to take to help stop these con artists. We urge taxpayers to visit IRS.gov for more information and to be wary of these dozen tax scams."

Below are the descriptions of the “Dirty Dozen” scams for 2015, provided by the IRS:

1. Phone Scams

Aggressive and threatening phone calls by criminals impersonating IRS agents remains an ongoing threat to taxpayers. The IRS has seen a surge of these phone scams in recent months as scam artists threaten police arrest, deportation, license revocation and other things. The IRS reminds taxpayers to guard against all sorts of con games that arise during any filing season. (IR-2015-5)

2. Phishing

Taxpayers need to be on guard against fake emails or websites looking to steal personal information. The IRS will not send you an email about a bill or refund out of the blue. Don’t click on one claiming to be from the IRS that takes you by surprise. Taxpayers should be wary of clicking on strange emails and websites. They may be scams to steal your personal information. (IR-2015-6)

3. Identity Theft

Taxpayers need to watch out for identity theft, especially around tax time. The IRS continues to aggressively pursue the criminals who file fraudulent returns using someone else’s Social Security number. The IRS is making progress on this front, but taxpayers still need to be extremely careful and do everything they can to avoid becoming a victim. (IR-2015-7)

4. Return Preparer Fraud

Taxpayers need to be on the lookout for unscrupulous return preparers. The vast majority of tax professionals provide honest high-quality service. But there are some dishonest preparers who set up shop each filing season to perpetrate refund fraud, identity theft and other scams that hurt taxpayers. Return preparers are a vital part of the U.S. tax system. About 60 percent of taxpayers use tax professionals to prepare their returns. (IR-2015-8)

5. Offshore Tax Avoidance

The recent string of successful enforcement actions against offshore tax cheats and the financial organizations that help them shows that it’s a bad bet to hide money and income offshore. Taxpayers are best served by coming in voluntarily and getting their taxes and filing requirements in order. The IRS offers the Offshore Voluntary Disclosure Program (OVDP) to help people get their taxes in order. (IR-2015-09)

6. Inflated Refund Claims

Taxpayers need to be on the lookout for anyone promising inflated refunds. Taxpayers should be wary of anyone who asks them to sign a blank return, promises a big refund before looking at their records, or charges fees based on a percentage of the refund. Scam artists use flyers, advertisements, phony store fronts and word of mouth via community groups and churches in seeking victims. (IR-2015-12)

7. Fake Charities

Taxpayers should be on guard against groups masquerading as charitable organizations to attract donations from unsuspecting contributors. Contributors should take a few extra minutes to ensure their hard-earned money goes to legitimate and currently eligible charities. IRS.gov has the tools taxpayers need to check out the status of charitable organizations. Be wary of charities with names that are similar to familiar or nationally known organizations. (IR-2015-16)

8. Hiding Income with Fake Documents

Hiding taxable income by filing false Form 1099s or other fake documents is a scam that taxpayers should always avoid and guard against. The mere suggestion of falsifying documents to reduce tax bills or inflate tax refunds is a huge red flag when using a paid tax return preparer. Taxpayers are legally responsible for what is on their returns regardless of who prepares the returns. (IR-2015-18)

9. Abusive Tax Shelters

Taxpayers should avoid using abusive tax structures to avoid paying taxes. The IRS is committed to stopping complex tax avoidance schemes and the people who create and sell them. The vast majority of taxpayers pay their fair share, and everyone should be on the lookout for people peddling tax shelters that sound too good to be true. When in doubt, taxpayers should seek an independent opinion regarding complex products they are offered. (IR-2015-19)

10. Falsifying Income to Claim Credits

Taxpayers should avoid inventing income to erroneously claim tax credits. Taxpayers are sometimes talked into doing this by scam artists. Taxpayers are best served by filing the most-accurate return possible because they are legally responsible for what is on their return. (IR-2015-20)

11. Excessive Claims for Fuel Tax Credits

Taxpayers need to avoid improper claims for fuel tax credits. The fuel tax credit is generally limited to off-highway business use, including use in farming. Consequently, the credit is not available to most taxpayers. Yet the IRS routinely finds unscrupulous preparers who have enticed sizable groups of taxpayers to erroneously claim the credit to inflate their refunds. (IR-2015-21)

12. Frivolous Tax Arguments

Taxpayers should avoid using frivolous tax arguments to avoid paying their taxes. Promoters of frivolous schemes encourage taxpayers to make unreasonable and outlandish claims to avoid paying the taxes they owe. These arguments are wrong and have been thrown out of court. While taxpayers have the right to contest their tax liabilities in court, no one has the right to disobey the law or disregard their responsibility to pay taxes. The penalty for filing a frivolous tax return is $5,000. (IR-2015-23)

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