Revenue Administrative Bulletin 2022-22

Income Tax – Treatment of Gambling Gains, Losses, and Expenses

(Replaces Revenue Administrative Bulletin 2016-3)

Approved: December 5, 2022

Pursuant to MCL 205.6a, a taxpayer may rely on an RAB issued by the Department of Treasury after September 30, 2006, and shall not be penalized for that reliance until the bulletin is revoked in writing. However, reliance by the taxpayer is limited to issues addressed in the bulletin for tax periods up to the effective date of an amendment to the law upon which the bulletin is based or for tax periods up to the date of a final order of a court of competent jurisdiction for which all rights of appeal have been exhausted or have expired that overrules or modifies the law upon which the bulletin is based.

RAB 2022-22. This Revenue Administrative Bulletin (RAB) updates RAB 2016-3 to address the deduction created by Public Act 168 of 2021 and to address the applicability of the session method to online gambling and sports betting.

Introduction

Michigan taxable income is based on the amount reported on the federal income tax return as adjusted gross income (AGI). Casual and professional gamblers calculate adjusted gross income differently from one another. Professional gamblers net wagering gains and losses. Casual gamblers who choose to recognize losses must itemize. Therefore, proper characterization of a taxpayer’s status as a professional or casual gambler is necessary to properly report gambling income at the federal level. Proper reporting of gambling income at the federal level means that wagering gains of both professional and casual gamblers are reflected on the Michigan return, but only the professional gambler’s losses carry over to the Michigan return because the losses are a component of the professional gambler’s trade or business income and are included in AGI. Because a casual gambler’s wagering losses are itemized, they are not included in AGI and do not carry over to the Michigan return. However, effective for tax years beginning January 1, 2021, casual gamblers may deduct wagering losses claimed by the taxpayer as an itemized deduction on the federal income tax return for the same tax year.

Issues

1. What constitutes gambling income?
2. How is income, including losses, from gambling activity reported?
3. What distinguishes a casual gambler from a professional gambler?
4. What method does the Department accept for a casual gambler’s calculation of gambling income?
5. What responsibility does a gambler have to document gambling activity and maintain records to support items reported on income tax returns?

Conclusions

1. Gambling income is wagering income earned from gambling activity whether legal or illegal, including but not limited to bingo, lotteries, raffles, pari-mutuel wagering (such as horse-racing, dog-racing and jai-alai), casino gaming either onsite or virtual (including table games such as blackjack, craps, and roulette, and electronic gaming such as slots and video poker), sports betting, and internet gambling, as well as the fair market value of all prizes or complimentary items such as cars, trips, or lodging. It is not limited to amounts reported by gambling establishments on W-2G forms. Gambling income does not include cash or prizes paid to a winner of a game or drawing that does not include a wager, such as “no purchase necessary” drawings and prizes based on correctly answering a quiz. Non-wager income is generally taxable but is not addressed in this RAB.
2. All gambling income from any source whatsoever is subject to tax and is a component of AGI. Since the classification of losses as business or non-business affects the calculation of AGI, the Department’s treatment of wagering losses depends upon the proper reporting of those losses at the federal level. Professional gamblers engaged in the trade or business of gambling may deduct wagering losses as part of the calculation of gross income at the federal level. For professional gamblers, deducting losses reduces AGI, which flows through to the Michigan return. Casual gamblers may only deduct wagering losses at the federal level by itemizing, which, consequently, is not included in AGI and therefore does not flow through to the Michigan return. As a result, and prior to Public Act 168 of 2021, a casual gambler did not receive the same tax benefit of wagering losses on the Michigan return that was received on a federal return. At the federal level, both professional and casual gamblers may only deduct wagering losses to the extent of wagering gains. On the Michigan return, professional gamblers’ losses are recognized to the extent that the losses are part of AGI. Effective for tax years beginning January 1, 2021, casual gamblers may deduct wagering losses on the Michigan return as described in this RAB.
3. A taxpayer is engaged in the trade or business of gambling and is thus a professional gambler if the taxpayer pursues the activity with continuity and regularity and for the primary purpose of producing income or profit. A casual gambler engages in the activity sporadically, as a hobby or for amusement. The Department will examine all relevant facts and circumstances to determine whether a taxpayer has properly characterized his or her status as a professional or casual gambler and whether the gambling income (wagering gains and wagering losses) is properly reported.
4. The Department accepts the session method for purposes of computing a casual gambler’s gambling income resulting from electronic slot machine course-of-play wagering transactions and other casino games. A session at an on-site gambling establishment begins when a gambler places the first wager and ends when the same gambler completes his or her last wager on the same game type before the end of the same 24-hour period at the same gambling establishment.

   With the advent of legalized sports betting and online gambling, the Department also accepts the session method for purposes of computing a casual gambler's gambling income from certain online wagering transactions. Online gambling sessions are defined in a similar manner to onsite gambling sessions without regard for the fact that a gambler may be logged into a gambling platform continuously and indefinitely. Rather, an online gambling session is defined by continuous play in the same game until such point that the player who placed the wager no longer has fluctuating gains and losses left in play but has had a calculable accession to wealth (or a loss).

   The session method is not applicable to sports betting because most sports bets are not made in the context of continuous play with fluctuating gains and losses left in play. Rather, in sports betting, a particular wager is placed on a particular event or contest. Even where multiple types of bets are placed on the same sporting contest, the gambler is not involved in continuous play, and fluctuating gains and losses are not left in play.

   Casual gamblers may not net wins from one session with losses from another session.

5. Both professional and casual gamblers must keep records sufficient to verify wagering gains and wagering losses. An accurate diary or other daily record should be maintained. A professional or casual gambler who deducts wagering losses on his or her return must be able to provide receipts, tickets, statements, or other records showing the amount of wagering gains and losses. Statements generated by gambling establishments and provided to the gambler may not be sufficient by themselves to document a gambler’s total wagering gains and losses.

Law and Analysis

Definitions.

For purposes of this RAB:

“Course-of-play” means a series of transactions marked by gains and losses that occur during a session of play.

“Gambling winnings” or “payout” have two components: wagering gains and the wager (bet). Wagering gains, but not the wager, are included in gambling income. The wager is not gambling income because it is a nontaxable return of capital. A prize paid to a winner that is not based on a wager is not gambling winnings although it may otherwise be taxable income.

“Gambling income” for a professional gambler is wagering gains less wagering losses. Wagering losses are limited to the amount of wagering gains.

“Gambling income” for a casual gambler is wagering gains. Gambling income for a casual gambler does not include wagering losses except those incurred during the course-of-play of a gambling session as described in this RAB. For casual gamblers, wagering gain is calculated on a per-session basis and course-of-play losses may offset course-of-play gains.

“Session” means the period of time beginning when a gambler places the first wager and continues until the same gambler completes his or her last wager on the same game type before the end of the same 24-hour period at the same gambling establishment.

“Wagering loss” is the loss of the wager. For professional gamblers and most casual gamblers, wagering losses are calculated after each wager except for casual gamblers using the per-session calculation method as permitted by this RAB. For those casual gamblers, a “wagering loss” occurs if, at the end of a session, the total amount of wagers placed during the session (course-of-play wagers) exceed the end of session payout. That is, a wagering loss occurs when a casual gambler has ended the session with less money than when he or she began the session.

Types of gambling activity.

Neither the Internal Revenue Code (IRC) nor the Michigan Income Tax Act (MITA) define gambling. According to the Internal Revenue Service (IRS), gambling activity includes but is not limited to: wagering gains from lotteries; raffles; pari-mutuel wagering, including horse-racing, dog racing and jai-alai; casino gaming, which includes table games such as blackjack, craps, roulette and their variations, and electronic gaming including slots, video poker and other video and internet gambling; and, the fair market value of prizes or other complimentary items such as cars and trips. See IRS Topic 419 Gambling Income and Losses and IRS Publication 525. All wagering gains from gambling are income even if the amount of the wagering gains are below the level that requires the payer to report the income to the IRS. Gambling income is not limited to wagering gains derived from legal activities. See James v United States, 366 US 213, 215 (1961) where embezzled funds were included in gross income.

Reporting gambling income on a federal return.

The proper characterization of gambling income at the federal level is important because the starting point for determining Michigan taxable income is federal adjusted gross income. MCL 206.30(1).

Wagering gains are included in gross income and therefore must be reported on a taxpayer’s federal tax return. Rev Rul 54-339, 1954-2 CB 89. The only component of gambling winnings that a federal taxpayer may exclude from gross income is the wager (bet), which is a nontaxable recovery of capital. Shollenberger v Comm’r of Internal Revenue, 98 TCM 667, 669 (2009). For example, if a $2 wager results in a $10 gambling winnings or payout, the gambling income is the wagering gain of $8. The remaining $2 (the wager or bet) is a tax-free return of capital. 33A AmJur2d Federal Taxation § 13258.1 (2005).

Wagering losses are deductible at the federal level in one of two ways. Byrd v Hamer, 943 NE2d 115, 120 (2011). For professional gamblers, wagering losses incurred in connection with the operation of a trade or business are reported on U.S. Form 1040, Schedule C, where they may be used to offset wagering gains. Wagering losses on a Schedule C cannot reduce wagering gains below zero. The net income of a professional gambler reported on Schedule C is a component of the taxpayer’s AGI. Id., citing 26 USC § 62(a)(1).

Wagering losses incurred by casual gamblers do not qualify as a trade or business loss and must be reported, if at all, on U.S. Form 1040, Schedule A as an itemized deduction and therefore do not figure into the calculation of a taxpayer’s AGI. Wagering losses reported on Schedule A are “below-the-line” deductions. Byrd, supra, citing LaPlante v Comm’r of Internal Revenue, TC Memo 2009-226. Casual gamblers are prohibited from netting wagering gains included in AGI against wagering losses, with the exception of per-session netting. Both professional and casual gamblers may only deduct wagering losses on the federal return to the extent of wagering gains. IRC 165(d). Neither may carry over excess wagering losses to offset wagering gains in another taxable year or to offset non-wagering income. Skeeles v United States, 118 Ct Cl 362 (1951), cert denied, 341 US 948 (1951).

Non-wagering business expenses incurred by professional gamblers may be deducted at the federal level. Non-wagering business expenses may include transportation, meals and entertainment, lodging, admission fees, mailing, printing, subscriptions, and other fees. Since passage of the Tax Cuts and Jobs Act of 2017 (TCJA), trade or business expenses incurred in the conduct of the trade or business of gambling are combined with the cost of wagers and together are now limited to the amount of the gambling gains. The TCJA provision which defines losses to include business expenses and limits those losses to gambling gains sunsets at the end of 2025. Section 11050 of the TCJA redefined losses from wagering transactions under IRC 165(d) to include allowable expenses, negating a taxpayer’s ability to generate a loss in excess of gambling gains especially as it applied to professional gamblers. The TCJA reversed the result previously reached by the Tax Court in Mayo v Comm’r of Internal Revenue, 136 TC 81 (2011), overruling Offutt v Comm’r of Internal Revenue, 16 TC 1214 (1951).

Reporting gambling income on a Michigan return.

The MITA’s use of AGI from the federal return as a starting point in computing Michigan income tax means that the wagering gains of both professional and casual gamblers are reflected on the Michigan return. But only the professional gambler’s federally deductible losses carry over to the Michigan return because the losses are a component of the professional gambler’s trade or business income and therefore the losses are included in AGI. See MCL 206.30(1). A casual gambler may only report wagering losses as federal itemized deductions, which are not included in AGI and therefore do not carry over to the Michigan return. Effective for tax years beginning in 2021, Public Act 168 of 2021 amended Part 1 of the MITA to allow a casual gambler to deduct wagering losses attributable to Michigan. See MCL 206.30(1)(bb).

Allocation and apportionment of gambling income.

A professional gambler who has winnings from activity both in-state and out-of-state must apportion the income based on the sales factor, the numerator of which is the gambling winnings in Michigan and the denominator of which is all gambling winnings. MCL 206.115(2) and 206.20(1). Gambling winnings are the wager plus the wagering gains. Casual gamblers who are residents of Michigan must allocate all gambling income to Michigan. MCL 206.110(1). A Michigan resident may claim an income tax credit if the gambling income is subject to income tax in another state unless the resident has offset all of their Michigan gambling income using the Public Act 168 deduction. Casual gamblers who are not residents of Michigan are subject to income tax on the gambling income earned in Michigan and may only deduct losses on the Michigan return to the extent the losses occurred in Michigan. Casual gamblers may not apportion their gambling income. MCL 206.110(2)(d).

Establishing professional gambler status.

A taxpayer is engaged in the trade or business of professional gambling if he or she is involved in the activity with continuity and regularity and with the primary purpose of earning income or profit. Comm’r of Internal Revenue v Groetzinger, 480 US 23, 35 (1987). Since a taxpayer has the burden of establishing entitlement to deductions, the taxpayer has the burden of proving professional gambler status. Menard Inc. v Dep’t of Treasury, 302 Mich App 467, 473 (2013). The Department will consider all of the facts and circumstances in determining whether a taxpayer has established professional gambler status.

Continuity and regularity is not established by simply adding up the hours spent gambling during a year and averaging them on a weekly basis. See Erbs v Comm’r of Internal Revenue, TC Summ Op 2001-85. A taxpayer must demonstrate that he or she engaged in the activity constantly, continually, steadily, sustainably and in a methodical way. See Free-Pacheco v United States, 117 FedCl 228, 263 (FedCl 2014).

Establishing a profit motive requires more than a mere statement by the taxpayer of his or her intent to make a profit; greater weight is given to objective facts and circumstances than to the taxpayer’s stated intent. Hastings v Comm’r of Internal Revenue, 84 TCM 663 (2002). The following non-exhaustive list of factors prepared by the IRS bears on a determination of a taxpayer’s profit objective. The list applies generally to any trade or business and some items on the IRS list may have less application to a gambling trade or business. 26 CFR § 1.183-2(b):

1. The manner in which the taxpayer carries on the activity, including whether the taxpayer maintains complete and accurate books and records.
2. The expertise of the taxpayer or his advisors regarding the accepted business or economic practices for engaging in the activity and the taxpayer’s effort to carry on the activity in accord with those accepted practices.
3. The time and effort expended by the taxpayer in carrying on the activity, including whether the taxpayer devotes most of his energies to the gambling activity or to another occupation.
4. The expectation that assets used in the activity may appreciate in value.
5. The success of the taxpayer in carrying on other similar or dissimilar activities and specifically whether a taxpayer has successfully converted other similar enterprises from unprofitable to profitable even though the activity is currently unprofitable.
6. The taxpayer’s history of income or losses with respect to the activity. Sustained losses not due to customary business risks or extraordinary circumstances are indicative of an activity not conducted for profit.
7. The amount of occasional profits, if any, which are earned, and specifically the amount of profits in relation to the amount of losses.
8. The financial status of the taxpayer, including whether the taxpayer has substantial income from other sources, particularly where the losses from the activity provide substantial tax benefit by reducing the income from other sources.
9. The elements of personal pleasure or recreation derived from the activity.

Proper classification of losses at the federal level has far more significance to the calculation of Michigan taxable income than to the calculation of federal taxable income, which permits a deduction to both professional and casual gamblers. See Mertz v Michigan Dep’t of Treasury, MTT Docket No. 240435, fn 7, where the Michigan Tax Tribunal noted that the IRS was indifferent to whether the taxpayer claimed losses as a professional or a casual gambler because in either case the federal taxable income was the same. Therefore, the Department is not bound by the IRS’ apparent acceptance of the taxpayer’s return claiming professional gambler status, and will make its own determination whether a taxpayer has properly reported gambling losses as either a professional or casual gambler. Maxitrol Co. v Dep’t of Treasury, 217 Mich App 366, 372 (1996). This is especially true since the enactment of the TCJA in 2017, which made itemizing much less advantageous for most taxpayers. A taxpayer’s choice not to itemize does not entitle the taxpayer to claim professional gambler status without establishing proof of professional gambler status.

Casual gamblers and per-session calculation of income.

Casual gamblers are generally prohibited from netting their wagering gains and losses; however, the IRS specifically allows a casual gambler to net course-of-play gains and losses from electronic slot machine wagering transactions on a per-session basis under a proposed safe harbor rule. See IRS Notice 2015-21 Safe Harbor Method for Determining a Wagering Gain or Loss from Slot Machine Play, citing Shollenberger v Commissioner of Internal Revenue, TC Memo 2009-306 (2009). Under the proposed IRS safe harbor rule for casual gamblers, a session of play begins when a patron places the first wager on a particular type of game and ends when the same patron completes his or her last wager on the same type of game before the end of the same calendar day at the same establishment. The time is determined by the time zone of the location where the patron places the wager. Under the proposed IRS rule, a session of play is always determined with reference to a calendar day (24-hour period from 12:00 a.m. through 11:59 p.m.) and ends no later than the end of that calendar day.

Session reporting allows a casual gambler to net course-of-play gains from a session with course-of-play losses from that same session. If at the end of the session, the casual gambler has more money than at the start of the session, the gambler has wagering gains. If at the end of the session, the casual gambler has less money than at the start, the casual gambler has a wagering loss. The net gambling income from a session can never be less than zero.

The Department previously accepted the IRS’s per-session reporting method for not only slot machine play but for all other casino games. Recognizing, however, that a session may extend outside the calendar day, the Department adopts a flexible 24-hour period rather than a calendar day that begins at 12 a.m. and ends at 11:59 p.m. The only exception to the 24-hour period is where a player engages in a tournament or contest where breaks occur in the gameplay, but gains and losses are left in play as a player advances toward the final contest. In other words, an onsite poker tournament with multiple rounds may last several days, and a player advancing from round to round would not have an accession to wealth until the player completed his or her final round.

Example 1. A casual gambler begins slot machine play at Casino X at 2 p.m. and plays several machines until breaking for dinner at 6 p.m. He returns to slot machine play at Casino X again at 8 p.m. and plays several machines until 1 a.m. when he then drives to Casino Y, arriving at 2 a.m. and playing several more slot machines until 4 a.m. He then plays blackjack from 4 a.m. to 6 a.m. while still at Casino Y. The gambler’s play at Casino X from 2 p.m. to 6 p.m. and from 8 p.m. until 1 a.m. constitutes a single session of play. The play from 2 a.m. to 4 a.m. at a different casino constitutes a second session of play. The play from 4 a.m. to 6 a.m. constitutes a third session of play because the type of game changed from slots to blackjack.

A casual gambler recognizes net gambling income if at the end of a single session of play the total payout (gambling winnings) exceeds the total amount of course-of-play wagers placed during the session. That is, the casual gambler ends the session with more money than at the start. A casual gambler recognizes gambling income of zero if at the end of a single session of play the total amount of course-of-play wagers placed during the session exceeds or is equal to the total payout from the slot machines played during that session.

Example 2. Assume the same facts as in Example 1. From 2 p.m. until 6 p.m. the casual gambler had course-of-play wagers of $600 and total payouts of $800 (exceeding his wagers by $200). From 8 p.m. until 1 a.m. (the second half of the same session), he placed wagers of $560 and received a pay of $500, creating a net loss of $60. The casual gambler may net his $200 gain and his $60 loss because they occurred in a single session.

From 2 a.m. until 4 a.m., the casual gambler played slot machines and had wagers of $1,300 and payouts of $1,000, the wagers exceeding payouts by $300. Gambling income is zero because net gambling income from a session can never be less than zero.

From 4 a.m. to 6 a.m. the casual gambler had wagers of $650 and payouts of $900. His payouts exceeded his wagers by $250. Gambling income is $250. The casual gambler may not net his session 2 slot machine loss against his session 3 blackjack gain even though they occurred on the same day and at the same casino, because the gain and loss occurred in connection with two separate types of games.

At the end of the year, if the casual gambler gambled on no other days during the year, he would have gambling income reported in AGI of $390.

The IRS has no published guidance extending this per-session calculation of gambling income to gambling other than slot machine play. However, the rationale for netting wagering losses against wagering gains from the same session derives from IRC 165(d), which refers to wagering transactions in the plural. The IRS has interpreted IRC 165(d) to mean that gain or loss may be calculated over a series of separate plays or wagers because fluctuating wins and losses left in play are not accessions to wealth until a taxpayer can definitively calculate the amount above or below basis that the taxpayer realized. See Shollenberger v Comm’r of Internal Revenue, TC Memo 2009-306, p 1 (2009), citing IRS Chief Counsel Advice 2008-011 (Dec 5, 2008). Though lacking any formal IRS guidance, courts have interpreted the IRS’s position to extend to other casino games in which it is impractical and burdensome to track gains on a per-bet basis. See Park v Comm’r of Internal Revenue, 722 F3d 384, 386-387 (2013). The Park case involved a slot machine player, but the Court’s analysis suggests the IRS’s position and its accession to wealth rationale also applies to casino games other than slot machines. The Department agrees with and follows this interpretation of IRC 165(d) and accepts per-session reporting for all casino games.

Further, to the extent that the gambler’s betting activity justifies application of the session method, the Department also accepts per-session reporting for online gambling. As with onsite casino games, determining whether a series of wagers is a session requires analyzing the relevant facts and circumstances. The following principles govern the determination of a discrete session: 1) whether a player experiences a break in continuous play, 2) whether a player who places a wager in a particular contest no longer has fluctuating gains and losses left in play but has had a calculable accession to wealth (or a loss), and 3) whether the game a player engages in is distinct enough from another game the player engages in either by type or by the nature of the wager or length of the event.

A session of online or electronic gambling is determined similarly to onsite casino gambling in that a session is limited to one type of game. A type of game is defined not only by the style and rules of the game but also by the format and wager minimums. For instance, blackjack is distinct from poker. But Texas Hold’em is different from Omaha poker. And a Texas Hold’em elimination tournament is different from a single Texas Hold’em game. A Texas Hold’em game with a $5 wager is distinct from a Texas Hold’em game with a $100 wager. An online poker game is distinct from an onsite poker game. And finally, an online poker game played on one gaming platform is different from the same online poker game played on another gaming platform. For purposes of the definition of a session, the common thread differentiating each game from another is that there are no fluctuating gains and losses left in play when moving from one type of game to another. Each game or contest has a specified point at which the outcome is determined, and a gain or loss is calculable.

Example 3. A casual gambler opens slot machine play on the Golden Jackpot Casino app at noon and plays until 1 p.m. At 5 p.m. she opens her BetCasino app and begins playing Texas Hold ‘em until 7:30 p.m. She breaks for dinner and then returns to her Golden Jackpot Casino app at 8:30 p.m. and plays slots until 11 p.m. The gambler’s slot machine play on the Golden Jackpot Casino platform from 12-1 p.m. and 8:30-11 p.m. constitutes a single session of play because it was on the same platform, involved the same type of game, and occurred in the same 24-hour period. The play from 5-7:30 p.m. constitutes a second session of play because the player changed platforms and changed games, either one of which triggers a new session.

The rationale for the session method is that a series of separate plays or wagers in the course of continuous play can be netted together because fluctuating gains or losses are left in play and have not yet become accessions to wealth until a taxpayer can definitively calculate the amount above or below basis that the taxpayer has realized. Sports betting does not typically occur in a serial manner during a course-of-play in which accessions to wealth are left in play. Rather wagers on sporting contests typically occur independently of each other, each resulting in a calculable accession to wealth (or a loss).

Example 4. A casual gambler opens his FantasyBets app and begins playing slot machine games at 2 p.m. and breaks at 5 p.m. for dinner. On the same app at around 6 p.m., he places a moneyline bet on a football game, betting on the favored team at the odds given by the sportsbook. The gambler then switches to his DraftPicks app to check the over/under points set by the oddsmakers for that sportsbook. He then places a wager on the over/under points on DraftPicks. The gambler’s slot machine play from 2-5 p.m. on FantasyBets constitutes one session. The other two bets are independent and separate wagers that do not occur within a course-of-play. Therefore, netting of gains and losses from those wagers is not necessary or permissible.

Acceptance of per-session reporting does not mean that a casual gambler may offset separate session winnings earned throughout the year with separate losses incurred throughout the year as a professional gambler does. Shollenberger, supra at p 2. Furthermore, the Department’s acceptance of per-session reporting does not mean that the Department necessarily accepts the taxpayer’s claim of professional gambler status on the federal return. In fact, per-session reporting does not apply to professional gamblers because they are permitted to net wagering gains and losses incurred throughout the year.

Gambler’s obligation to keep records.

The IRC generally requires any payer of gambling winnings of $600 or more to report that information. This reporting threshold is increased to $1,200 for bingo and slot machine winnings and $1,500 for keno games. 26 CFR § 7.6041-1. Bingo, keno, and slot machine winnings are reported on Form W-2G, Certain Gambling Winnings.

A gaming establishment’s duty to report gambling winnings above these thresholds, or any other threshold determined in the future, does not mean that gambling income from gambling wagers below these thresholds is nontaxable. All gambling income is subject to tax. Therefore, a taxpayer is obligated to keep and maintain accurate records from which the Department can determine the tax due. MCL 205.408. Form W-2Gs alone are insufficient to prove either a gambler’s status as a professional gambler or the amount of wagering gains and losses claimed on a return. W-2Gs are insufficient proof of gambling income because they only document winnings above a certain threshold and do not track losses at all. Additionally, W-2Gs are inadequate to prove professional gambling status because professionals conducting a trade or business do not rely solely on records generated by others to track business operations and such records cannot establish the regularity or continuity of a gambler’s activities. Acceptable evidence for substantiation of wagering gains and losses includes an accurate diary or similar record regularly and contemporaneously maintained by the taxpayer, supplemented by verifiable documentation. See Rev Proc 77-29, 1977-2 CB 538.

Diaries, journals, or other self-generated records should contain, at a minimum, the date and type of specific wager or wager activity, the name and address of the gambling establishment, the machine or table number played, the amount won or lost during each session, and the name of any other persons present with the taxpayer at the gambling establishment. Verifiable documentation used to supplement the self-generated record includes but is not limited to casino generated forms such as Form W-2G, wagering tickets, canceled checks, a taxpayer’s casino credit or check-cashing records, bank deposit and withdrawal statements, payment slips, winnings statements, hotel bills, and airline tickets, Id.