Keep two layers of records for every gambling activity: an accurate diary and documents that corroborate the amounts. Your diary should identify the date, wager or activity, gambling establishment and location, people present when relevant, and winnings and losses separately. Preserve tickets, Forms W-2G or 5754, casino statements, payment slips, checks, bank withdrawals and credit records with it. The IRS expects gambling winnings to be reported in full; eligible losses are a separate itemized deduction limited to winnings.
The records the IRS expects
Internal Revenue Service Publication 529 says, “You must keep an accurate diary or similar record of your losses and winnings.” A notebook, spreadsheet or digital log can serve as the diary; the IRS does not prescribe a particular app, brand or format. What matters is that the entries are timely, specific and supported by other evidence where available.
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For each session, ticket or other wagering activity, record:
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- The date and the type of wager or activity.
- The gambling establishment’s name and its address or other location.
- The names of other people present, when applicable.
- The amount won and the amount lost as separate figures, not one net number.
- Identifying details for the game, ticket or machine.
- Documents connected with the entry, such as a ticket, receipt, payment slip, casino statement, check, bank withdrawal or credit record.
Publication 529’s examples are not an exhaustive safe harbor. The evidence needed depends on the facts and circumstances, so a detailed entry plus independent documents is stronger than a bare end-of-year estimate.
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Diary versus corroborating documents
| Record layer | What it does | Examples |
|---|---|---|
| Diary or similar log | Creates a chronological account of what you played and the amounts won or lost. | Notebook, spreadsheet, dated digital entry or comparable record. |
| Independent support | Helps substantiate particular entries and cash flows. | W-2G, 5754, wagering ticket, canceled or substitute check, casino statement, payment slip, bank withdrawal or credit record. |
A diary is not a substitute for every document, and a stack of tickets without an explanation of how they fit together can be difficult to reconcile. Keep both layers together by date, trip or gambling session.
Build a recordkeeping system that works during play
- Choose a format you will use consistently. A bound notebook is acceptable, but a spreadsheet or secure digital note can make totals and document links easier to review. Use one file or notebook for the tax year and a consistent naming convention for scans and photographs.
- Start an entry before or at the activity. Enter the date, venue and game while the information is available. Add machine, table, race, ticket or other identifiers as you play.
- Log money in and money out separately. Record the amount wagered or lost and the amount paid out or won without netting the two. If a session contains several games, make separate lines or clearly itemized subentries.
- Attach or reference supporting evidence. Photograph tickets before redemption, save casino statements and payment slips, and note the check number or bank transaction associated with a payout or withdrawal. Keep the original paper when practical.
- Reconcile the entry before closing the session. Compare the diary with cash withdrawals, credit activity, tickets redeemed and casino records. Explain unusual differences in a note rather than silently changing a total.
- Back up and protect the records. Store a copy separately from the device or notebook used to create it. Restrict access because bank statements, identification documents and tax records contain sensitive information.
Make entries close to the time of play. Reconstructing an entire year from memory usually loses the details—such as table or machine identifiers—that make the record persuasive.
Activity-specific details to capture
The same basic diary applies to every wager, but the IRS gives examples of extra details that can identify a particular activity and substantiate its amounts.
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| Activity | Useful details and supporting records |
|---|---|
| Keno | Validated purchased tickets, casino credit records and casino check-cashing records. |
| Slot machines | Machine number, date and time played, and winnings associated with each period of play. |
| Table games | Table number and casino credit-card data indicating whether credit was issued in the pit or at the cashier’s cage. |
| Bingo | Games played, ticket cost, amounts collected on winning tickets, and casino or parlor receipts. |
| Horse or other racing | Race, wager amount, amounts collected on winning tickets, amounts lost on losing tickets, unredeemed tickets and payment records. |
| Lotteries | Ticket purchases, purchase dates, winnings, losses, unredeemed tickets, payment slips and winnings statements. |
These are examples from IRS Publication 529, not a complete list of acceptable evidence. For an activity not shown, apply the same principle: identify what was wagered, when and where, the amount at risk, the result, and the document or transaction that supports it.
Why winnings and losses must be tracked separately
Federal reporting treats gross gambling winnings and gambling losses differently. For tax year 2025, IRS Publication 525 says gambling winnings are included in income on Schedule 1 (Form 1040), line 8b. You should not reduce the income entry by subtracting losing wagers.
If you itemize deductions, eligible gambling losses may be claimed on Schedule A, but only up to the amount of gambling winnings reported. A taxpayer who takes the standard deduction cannot use gambling losses as a separate itemized deduction. The deduction limit does not authorize you to omit winnings or report only a net result.
Illustrative federal example
Suppose your records show $8,000 of winning payouts and $6,500 of losing wagers during 2025. The income reporting starts with the full $8,000 of winnings. If you itemize and otherwise qualify, the documented loss deduction can be no more than $6,500. If the documented losses were $10,000, the deductible amount would still be capped at $8,000—the winnings figure. Your diary and supporting documents should make both figures independently traceable.
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1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteThis article addresses federal guidance. State and local treatment can differ, so check the rules for every jurisdiction that taxes your income before filing.
W-2G and Form 5754: useful forms, not a complete log
A Form W-2G reports certain gambling winnings and any federal income-tax withholding associated with them. It does not cover every gambling result, and the IRS says winnings are reportable whether or not you receive a W-2G. Continue recording activities that produce no form and reconcile every W-2G to the related diary entry and payment.
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Form 5754 is used when the person receiving the payment is not the actual winner or when a payment belongs to a group sharing the winnings. The payer uses the information to prepare Forms W-2G for the appropriate winners. Keep a copy of the completed form and documentation showing how a shared payout was allocated.
The IRS gambling income and losses topic summarizes the reporting obligation, while the Instructions for Forms W-2G and 5754 (January 2026) explain the forms’ purposes. Neither source makes a W-2G a replacement for your own activity records.
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Match the document to the transaction it proves. A redeemed ticket can support a specific payout; a bank withdrawal can corroborate funds used for wagering; a casino statement can show account activity; and a canceled or substitute check can document a payment. Credit records may show advances, pit or cage activity, or other casino transactions. Keep the date, amount and identifying reference visible in the diary entry.
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For cash play with few paper records, increase the detail of the contemporaneous diary: venue, game, table or machine, start and end times, cash brought to the activity, cash returned, and people present. These details do not guarantee that every amount will be accepted, but they create a clearer account than a year-end estimate.
When a document is missing
- Write a note explaining what is missing and how the amount was reconstructed.
- Look for substitute evidence such as bank or credit statements, casino account history, payment records or unredeemed tickets.
- Do not create a replacement ticket or alter a statement; preserve the original records and label your reconstruction.
- Use conservative amounts when the evidence cannot establish an exact figure, and obtain professional advice for a significant or disputed claim.
Organize records for filing and later questions
Use a folder for each tax year with subfolders for the diary, W-2G and 5754 forms, tickets, casino statements, bank and credit records, and tax-return workpapers. Number or name files so a reviewer can move from a diary line to the corresponding document. Keep a running year-to-date total of winnings and losses, but retain the underlying session entries rather than relying on the total alone.
Before preparing the return, check that every W-2G is included in your records, every reported winning amount can be traced to entries, and the loss total is supported by activity-level evidence. Keep the records with your tax files and follow the IRS record-retention guidance applicable to your filing circumstances; the appropriate period can depend on what was reported and whether a return is later examined.
Common recordkeeping mistakes
- Recording only the net result: This obscures the gross winnings needed for income reporting and the separate loss calculation.
- Relying on W-2G forms alone: They document only certain reportable payments, not all gambling activity.
- Using undated totals: A single annual number does not identify the wagers, venues or documents behind it.
- Discarding losing tickets: Losing and unredeemed tickets can help substantiate losses, particularly for racing and lotteries.
- Ignoring shared payouts: When several people share a win, retain Form 5754 information and the allocation records.
- Assuming federal rules settle state taxes: State and local requirements may use different definitions, deductions or reporting forms.
For unusual situations—such as operating as a professional gambler, being a nonresident, or sharing complex payouts—the general checklist may not determine your tax treatment. The federal publications cited here describe record content and reporting context, but they do not decide an individual’s classification or all jurisdiction-specific rules.
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