The Internal Revenue Service recently issued its annual “Dirty Dozen” list of tax scams, reminding taxpayers to use caution during tax season to protect themselves against a wide range of schemes ranging from identity theft to return preparer fraud.

The listing, compiled by the IRS each year, lists a variety of common scams taxpayers can encounter at any point during the year. But many of these schemes peak during filing season as people prepare their tax returns.

Top Tax Scams for 2014:

1. Identity Theft

Tax fraud through the use of identity theft tops this year’s list. Identity theft occurs when someone uses your personal information, such as your name, Social Security number (SSN) or other identifying information, without your permission, to commit fraud or other crimes. In many cases, an identity thief uses a legitimate taxpayer’s identity to fraudulently file a tax return and claim a refund.

2. Telephone Scams

Phone scams include many variations, ranging from instances from where callers say the victims owe money or are entitled to a huge refund. Some calls can threaten arrest and threaten a driver’s license revocation. Sometimes these calls are paired with follow-up calls from people saying they are from the local police department or the state motor vehicle department.

Characteristics of these scams can include:

  • Scammers use fake names and IRS badge numbers. They generally use common names and surnames to identify themselves.
  • Scammers may be able to recite the last four digits of a victim’s Social Security Number.
  • Scammers “spoof” or imitate the IRS toll-free number on caller ID to make it appear that it’s the IRS calling.
  • Scammers sometimes send bogus IRS emails to some victims to support their bogus calls.
  • Victims hear background noise of other calls being conducted to mimic a call site.

After threatening victims with jail time or a driver’s license revocation, scammers hang up and others soon call back pretending to be from the local police or DMV, and the caller ID supports their claim.

3. Phishing

Phishing is a scam typically carried out with the help of unsolicited email or a fake website that poses as a legitimate site to lure in potential victims and prompt them to provide valuable personal and financial information. Armed with this information, a criminal can commit identity theft or financial theft.

It is important to keep in mind the IRS does not initiate contact with taxpayers by email to request personal or financial information. This includes any type of electronic communication, such as text messages and social media channels. The IRS has information online that can help you protect yourself from email scams.

4. “Free Money” Scams

Scam artists routinely pose as tax preparers during tax time, luring victims in by promising large federal tax refunds or refunds that people never dreamed they were due in the first place.

Scam artists use flyers, advertisements, phony store fronts and even word of mouth to throw out a wide net for victims. They may even spread the word through community groups or churches where trust is high. Scammers prey on people who do not have a filing requirement, such as low-income individuals or the elderly. They also prey on non-English speakers, who may or may not have a filing requirement.

Scammers build false hope by duping people into making claims for fictitious rebates, benefits or tax credits. They charge good money for very bad advice. Or worse, they file a false return in a person’s name and that person never knows that a refund was paid.

Scam artists also victimize people with a filing requirement and due a refund by promising inflated refunds based on fictitious Social Security benefits and false claims for education credits, the Earned Income Tax Credit (EITC), or the American Opportunity Tax Credit, among others.

5. Preparer Fraud

About 60 percent of taxpayers will use tax professionals this year to prepare their tax returns. Most return preparers provide honest service to their clients. But, some unscrupulous preparers prey on unsuspecting taxpayers, and the result can be refund fraud or identity theft.

It is important to choose carefully when hiring an individual or firm to prepare your return. This year, the IRS wants to remind all taxpayers that they should use only preparers who sign the returns they prepare and enter their IRS Preparer Tax Identification Numbers (PTINs).

6. Offshore Hidden Income

Over the years, numerous individuals have been identified as evading U.S. taxes by hiding income in offshore banks, brokerage accounts or nominee entities and then using debit cards, credit cards or wire transfers to access the funds. Others have employed foreign trusts, employee-leasing schemes, private annuities or insurance plans for the same purpose.

While there are legitimate reasons for maintaining financial accounts abroad, there are reporting requirements that need to be fulfilled. U.S. taxpayers who maintain such accounts and who do not comply with reporting requirements are breaking the law and risk significant penalties and fines, as well as the possibility of criminal prosecution.

Since 2009, tens of thousands of individuals have come forward voluntarily to disclose their foreign financial accounts, taking advantage of special opportunities to comply with the U.S. tax system and resolve their tax obligations. And, with new foreign account reporting requirements being phased in over the next few years, hiding income offshore is increasingly more difficult.

At the beginning of 2012, the IRS reopened the Offshore Voluntary Disclosure Program (OVDP) following continued strong interest from taxpayers and tax practitioners after the closure of the 2011 and 2009 programs.

7. Fraudulent Charitable Organizations

Another long-standing type of abuse or fraud is scams that occur in the wake of significant natural disasters.

Following major disasters, it’s common for scam artists to impersonate charities to get money or private information from well-intentioned taxpayers. Scam artists can use a variety of tactics. Some scammers operating bogus charities may contact people by telephone or email to solicit money or financial information. They may even directly contact disaster victims and claim to be working for or on behalf of the IRS to help the victims file casualty loss claims and get tax refunds.

They may attempt to get personal financial information or Social Security numbers that can be used to steal the victims’ identities or financial resources. Bogus websites may solicit funds for disaster victims. The IRS cautions both victims of natural disasters and people wishing to make charitable donations to avoid scam artists by following these tips:

To help disaster victims, donate to recognized charities.

Be wary of charities with names that are similar to familiar or nationally known organizations. IRS.gov has a search feature, Exempt Organizations Select Check, which allows people to find legitimate, qualified charities to which donations may be tax-deductible.

Don’t give out personal financial information, such as Social Security numbers or credit card and bank account numbers and passwords, to anyone who solicits a contribution from you. Don’t give or send cash. For security and tax record purposes, contribute by check or credit card or another way that provides documentation of the gift.

8. Fictitious Income

Another scam involves inflating or including income on a tax return that was never earned, either as wages or as self-employment income in order to maximize refundable credits. Claiming income you did not earn or expenses you did not pay in order to secure larger refundable credits such as the Earned Income Tax Credit could have serious repercussions. This could result in repaying the erroneous refunds, including interest and penalties, and in some cases, even prosecution.

Additionally, some taxpayers are filing excessive claims for the fuel tax credit. Farmers and other taxpayers who use fuel for off-highway business purposes may be eligible for the fuel tax credit. But other individuals have claimed the tax credit although they were not eligible. Fraud involving the fuel tax credit is considered a frivolous tax claim and can result in a penalty of $5,000.

9. Frivolous Claims

Promoters of frivolous schemes encourage taxpayers to make unreasonable and outlandish claims to avoid paying the taxes they owe. The IRS has a list of frivolous tax arguments that taxpayers should avoid.

Those who promote or adopt frivolous positions risk a variety of penalties.  For example, taxpayers could be responsible for an accuracy-related penalty, a civil fraud penalty, an erroneous refund claim penalty, or a failure to file penalty.  The Tax Court may also impose a penalty against taxpayers who make frivolous arguments in court.

10.  Improperly Reduce Taxable Income to Zero

Filing a phony information return is an illegal way to lower the amount of taxes an individual owes. Typically, a Form 4852 (Substitute Form W-2) or a “corrected” Form 1099 is used as a way to improperly reduce taxable income to zero. The taxpayer may also submit a statement rebutting wages and taxes reported by a payer to the IRS.

Sometimes, fraudsters even include an explanation on their Form 4852 that cites statutory language on the definition of wages or may include some reference to a paying company that refuses to issue a corrected Form W-2 for fear of IRS retaliation. Taxpayers should resist any temptation to participate in any variations of this scheme. Filing this type of return may result in a $5,000 penalty.

Some people also attempt fraud using false Form 1099 refund claims. In some cases, individuals have made refund claims based on the bogus theory that the federal government maintains secret accounts for U.S. citizens and that taxpayers can gain access to the accounts by issuing 1099-OID forms to the IRS. In this ongoing scam, the perpetrator files a fake information return, such as a Form 1099 Original Issue Discount (OID), to justify a false refund claim on a corresponding tax return.

11. Abusive Tax Structures

Abusive tax schemes have evolved from simple structuring of abusive domestic and foreign trust arrangements into sophisticated strategies that take advantage of the financial secrecy laws of some foreign jurisdictions and the availability of credit/debit cards issued from offshore financial institutions.

IRS Criminal Investigation (CI) has developed a nationally coordinated program to combat these tax schemes. CI’s primary focus is on the identification and investigation of the tax scheme promoters as well as those who play a substantial or integral role in facilitating, aiding, assisting, or furthering the abusive tax scheme (e.g., accountants, lawyers).  Secondarily, but equally important, is the investigation of investors who knowingly participate in abusive tax schemes.

What is an abusive scheme? The Abusive Tax Schemes program encompasses violations of the Internal Revenue Code (IRC) and related statutes where multiple flow-through entities are used as an integral part of the taxpayer’s scheme to evade taxes.  These schemes are characterized by the use of Limited Liability Companies (LLCs), Limited Liability Partnerships (LLPs), International Business Companies (IBCs), foreign financial accounts, offshore credit/debit cards and other similar instruments.  The schemes are usually complex involving multi-layer transactions for the purpose of concealing the true nature and ownership of the taxable income and/or assets.

12. Misuse of Trusts

Trusts commonly show up in abusive tax structures. They are highlighted here because unscrupulous promoters continue to urge taxpayers to transfer large amounts of assets into trusts. These assets include not only cash and investments, but also successful on-going businesses. There are legitimate uses of trusts in tax and estate planning, but the IRS commonly sees highly questionable transactions. These transactions promise reduced taxable income, inflated deductions for personal expenses, the reduction or elimination of self-employment taxes and reduced estate or gift transfer taxes. These transactions commonly arise when taxpayers are transferring wealth from one generation to another. Questionable trusts rarely deliver the tax benefits promised and are used primarily as a means of avoiding income tax liability and hiding assets from creditors, including the IRS.

IRS personnel continue to see an increase in the improper use of private annuity trusts and foreign trusts to shift income and deduct personal expenses, as well as to avoid estate transfer taxes. As with other arrangements, taxpayers should seek the advice of a trusted professional before entering a trust arrangement.

Beyond the Dirty Dozen

The IRS reminds taxpayers that tax scams can take many forms beyond the “Dirty Dozen,” and people should be on the lookout for many other schemes. Contact your tax advisor or the IRS if you think you may have been prey to a tax scam.