Is a casino win/loss statement enough for the IRS?

What does the IRS actually require?

IRS Topic 419 states the rule in one sentence: “To deduct your losses, you must keep an accurate diary or similar record of your gambling winnings and losses and be able to provide receipts, tickets, statements, or other records that show the amount of both your winnings and losses.” ^[1] The IRS last reviewed that page on September 24, 2026. ^[1]

Rev. Proc. 77-29 is where the diary is spelled out. It says a diary “regularly maintained by the taxpayer, supplemented by verifiable documentation will usually be acceptable evidence,” and that the diary should contain at least: ^[2]

1. Date and type of specific wager or wagering activity;
2. Name of gambling establishment;
3. Address or location of gambling establishment;
4. Name(s) of other person(s) (if any) present with taxpayer at gambling establishment; and
5. Amount(s) won or lost.

The same revenue procedure lists the “verifiable documentation” that backs the diary: Forms W-2G, Forms 5754, wagering tickets, canceled checks, credit records, bank withdrawals, and “statements of actual winnings or payment slips provided to the taxpayer by the gambling establishment.” ^[2] A win/loss statement lives on that second list. It supports the diary; it does not replace it.

Publication 529 repeats the diary items and adds the game-specific records: for slot machines, “a record of the machine number and all winnings by date and time”; for table games, the table number and casino credit data; for racing, the races, wagers and amounts collected; for keno, validated tickets and casino credit records; for bingo, games played, ticket cost and amounts collected; for lotteries, ticket purchases, dates, winnings and losses. ^[3]

What is a win/loss statement, and what is it not?

A win/loss statement (an operator's year-end summary of the wins and losses it tracked on your player's card or online account) is built from the play the operator could see: card-in slot play, rated table play, online wagers. It is prepared after the year ends, it usually reports one net figure, it covers that one operator, and it normally carries a disclaimer that it is an estimate and not a tax document. Table play without a card, a book that issued no statement, and the difference between a calendar-year net and session-by-session results are all outside it.

The IRS diary is the opposite on every point: kept as you go, winnings and losses separately, every operator, every session. That gap is why a statement is supporting evidence and the diary is the record.

How do the four documents compare?

Diary standard and documentation list: Topic 419 and Rev. Proc. 77-29. ^{[1] [2]} W-2G threshold and boxes: Instructions for Forms W-2G and 5754, rev. January 2026, which also set regular gambling withholding at 24%. ^[6]

Has the Tax Court ever accepted a win/loss statement?

Yes, as a floor. More often it has rejected them or used them against the taxpayer. The pattern across the cases is consistent: a statement alone, with an estimate disclaimer and no diary, carries little weight; a statement that agrees with the W-2Gs and bank records can establish a minimum loss.

• In Mayer v. Commissioner, T.C. Memo. 2000-295, the taxpayer offered an unsigned Caesars letter showing $898,050 of coin-in, $837,570 of estimated winnings and a $60,480 net loss. The court called the letter “highly suspect” and wrote: “We regard the letter as unreliable evidence and give it no weight.” ^[8]
• In Lutz v. Commissioner, T.C. Memo. 2002-89, casino letters were found to be “unreliable indicators of petitioners' gambling winnings and losses,” with the marketing-purpose disclaimer counting against them. ^[8]
• In Hardwick v. Commissioner, T.C. Memo. 2007-359, the win/loss statements showed $115,142 of winnings while the Forms W-2G showed $322,500. The court used the statements to impeach the taxpayer's credibility rather than to support the deduction. ^[8]
• In Bright v. Commissioner (2023), the taxpayer had no diary but did have player's-card win/loss statements from three casinos and bank statements. Applying the Cohan rule, which lets the court estimate an expense when there is some credible basis, the Tax Court allowed $191,756 of losses against $240,895 of reported gambling receipts. The statements “consistently displayed losses, corroborating Bright's testimony.” He still owed tax on the $49,130 the statements could not cover. ^[9]
• In Shollenberger v. Commissioner, T.C. Memo. 2009-306, a couple brought $500 to a casino, hit a $2,000 slot jackpot, lost $400 of it and left with $1,600. The court held the session produced $1,100 of gross income and refused to net the year's losses against it, quoting section 165(d): losses “shall be allowed only to the extent of gains.” ^[10] The case is the reason a diary is kept by session, which is what the session method page explains. ^[11]

Read together: the statement Bright won with was the same kind of document Mayer lost with. The difference was whether anything else lined up behind it.

The net-only statement trap

Most statements report one net number. A return that copies that number into the loss line understates losses and overstates income, because the W-2Gs the IRS already holds are gross winnings.

The W-2Gs go on Schedule 1 in full, the losses go on Schedule A as an other itemized deduction, and the statement is one of the documents that shows the loss figure is real. ^{[1] [5]} Our reconciliation page walks through the tie-out, and the sample workpaper shows statements reconciled against W-2Gs on a real file.

How does the 2026 90% rule change the math?

For tax years beginning after December 31, 2025, section 165(d), as amended by section 70114 of Public Law 119-21 (signed July 4, 2025), allows a deduction equal to “90 percent of the amount of such losses,” still “only to the extent of the gains from such transactions.” ^[4] For tax year 2025 the deduction was 100% of losses, capped at winnings. Either way it is available only to itemizers, on Schedule A. ^{[1] [5]} Documentation matters more under the new rule, not less: the 90% applies to losses you can prove, so every undocumented dollar is lost twice.

The calculator runs your own numbers for either year, and the 90% cap page covers the rule in detail.

Repeal status as of September 28, 2026: on September 16, 2026 the House Ways and Means Committee voted 38-5 to advance H.R. 10357, a digital-asset tax bill from Rep. Jason Smith that carries a provision eliminating the 90% limit retroactive to January 1, 2026. The House is not scheduled to return until after the November midterm elections, and the Senate has not acted. ^[12] Nothing is enacted; the 90% rule is the law for 2026 returns today.

What is enough?

Four sets of documents, which together let a preparer show winnings, show losses, and explain every gap:

1. A session diary kept during the year with the five Rev. Proc. 77-29 items. ^[2] Our session log template has one column per item.
2. A win/loss statement or wagering history from every operator you used, including the ones you only lost at. A losing book with no statement is the most common missing deduction.
3. Every W-2G and 1099 you were issued, because the IRS has the same copies and will match them. ^[6] A mismatch is what produces a CP2000 letter.
4. Bank, card and ATM records that tie deposits and withdrawals to the operators. Rev. Proc. 77-29 lists bank withdrawals and credit records as verifiable documentation. ^[2]

Nothing is attached to the return. The records are kept for the IRS to ask for; Rev. Proc. 77-29 says to retain them “until the statute of limitations on that return expires,” and the IRS general rule is three years. ^{[2] [13]} The firm-side substantiation page covers how a preparer builds the file.

Is a win/loss statement enough for a state return?

Usually the same answer. New Jersey's Technical Bulletin TB-20(R) (August 2, 2016) says it plainly: “letters from casinos that purport to ‘rate’ the gambling activity of an individual or ‘estimate’ losses are not acceptable alone as evidence of gambling losses. However, they are acceptable as part of the taxpayer's proofs of wins and losses.” New Jersey also asks that the evidence be kept for six years after the return is filed. ^[7] See the New Jersey page and the state-by-state guide for where you file; some states allow no loss deduction at all, and there the statement question does not arise.

How do I get the statements?

Each operator has a different route, from a download inside the app to a signed request mailed to the players club, and most need a player's card or online account to exist at all; the player's card page covers what to do when there was no card. The player side of W2gMatch lists the route for each operator, prepares the signed request where one is needed, and reads every statement into one reconciled file for your preparer.

Related questions

Sources

1. IRS Tax Topic 419, Gambling income and losses, page last reviewed June 11, 2026
2. IRS Rev. Proc. 77-29, Treatment of wagering gains and losses (recordkeeping guidelines), sections 2 and 3, 1977
3. IRS Publication 529, Miscellaneous Deductions, Gambling losses up to the amount of gambling winnings, Rev. December 2020
4. 26 U.S.C. § 165(d), Wagering losses, as amended by Pub. L. 119-21 § 70114 (Legal Information Institute), amendment effective for taxable years beginning after December 31, 2025
5. IRS Instructions for Schedule A (Form 1040), line 16, Other itemized deductions, tax year 2025 edition
6. IRS Instructions for Forms W-2G and 5754, Rev. January 2026
7. New Jersey Division of Taxation, Technical Bulletin TB-20(R), Gambling Winnings or Losses, August 2, 2016
8. Morrel Law PLLC, Why the U.S. Tax Court hates casino win/loss statements (Mayer T.C. Memo. 2000-295, Lutz T.C. Memo. 2002-89, Hardwick T.C. Memo. 2007-359), June 11, 2018 (secondary source)
9. Byron L. Riley, CPA, Could casual gambling lead to tax complications? (Bright v. Commissioner, 2023), December 4, 2023 (secondary source)
10. Journal of Accountancy, Tax Court rules on casual gambler's slot session (Shollenberger v. Commissioner, T.C. Memo. 2009-306), December 29, 2009 (secondary source)
11. IRS Office of Chief Counsel, AM 2008-011, Reporting of wagering gains and losses, December 12, 2008
12. Covers, House committee advances repeal of 90 percent gambling loss deduction limit, September 16, 2026 (secondary source)
13. IRS, How long should I keep records?, page last reviewed June 30, 2026

Related

• Do I need a players club card to get a casino win/loss statement?
• What is the session method for gambling taxes in 2026?
• Can I deduct gambling losses in 2026?
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• How do I reconcile W-2Gs, 1099-Ks and win/loss statements for a gambling client?
• How do I substantiate gambling losses for a client?