📖 IRS · TAX TERMINOLOGY 2026
Gambling Taxes Glossary
Your complete reference guide to gambling tax terminology. Understand every IRS term, form, and concept with clear, simple explanations.
30+
Terms Defined
IRS
Official Terms
2026
Updated
Last updated: by Michael Johnson (Lead Reviewer) and Kevin Lee (Tax Specialist)
Your location
Tax terms apply in all states
📖 REFERENCE
Bookmark for tax season
📖 Complete Gambling Taxes Glossary
All gambling terms →Aggregate Rating
A summary of all ratings for a product or service. In gambling taxes, not applicable directly but used in casino reviews. Learn more about federal tax →
Backup Withholding
A 24% tax withheld from gambling winnings when you fail to provide a valid Taxpayer Identification Number (TIN) to the casino or are subject to IRS backup withholding. Withholding guide →
Capital Gains
Profit from selling an asset (including cryptocurrency) for more than you paid. Applies to crypto gambling winnings if value increases after winning. Short-term (under 1 year) taxed as ordinary income; long-term (over 1 year) taxed at 0-20%. Crypto tax guide →
Cost Basis
The original value of an asset for tax purposes. For crypto gambling, the USD value at the time you won the crypto becomes your cost basis when you later sell. Crypto tax guide →
Deductible Losses
Gambling losses that can be subtracted from your taxable income, but only up to the amount of your gambling winnings. Must itemize deductions on Schedule A. Loss deduction guide →
Form 1040
The standard U.S. Individual Income Tax Return. Gambling winnings are reported on Schedule 1 attached to Form 1040. IRS forms guide →
Form 1040-X
Amended U.S. Individual Income Tax Return. Used to correct previously filed returns, including unreported gambling winnings or missed deductions. IRS forms guide →
Form 4868
Application for Automatic Extension of Time to File U.S. Individual Income Tax Return. Extends filing deadline to October 15, but payment is still due April 15. Extension guide →
Form W-2G
Certain Gambling Winnings. The form casinos issue for winnings over thresholds: $600+ for poker, $1,200+ for slots, $5,000+ for sports betting. Reports winnings to you and the IRS. W-2G guide →
Form W-9
Request for Taxpayer Identification Number and Certification. Provided to casinos to certify your TIN and avoid backup withholding. Withholding guide →
Form W-8BEN
Certificate of Foreign Status of Beneficial Owner for United States Tax Withholding. Used by non-resident aliens to claim tax treaty benefits and reduce withholding rates. Non-resident guide →
Gambling Income
All money won from gambling activities, including casino games, sports betting, poker tournaments, lottery, and raffles. Fully taxable regardless of amount. Taxable winnings guide →
Gambling Losses
Money lost while gambling. Deductible only up to the amount of gambling winnings. Must itemize deductions on Schedule A. Loss deduction guide →
Itemized Deductions
Expenses that can be claimed on Schedule A instead of taking the standard deduction. Gambling losses must be itemized to be deductible. Itemizing guide →
KYC (Know Your Customer)
Verification process casinos use to confirm identity. Required for withdrawals and to issue W-2G forms. KYC guide →
Marginal Tax Rate
The tax rate applied to your last dollar of income. Gambling winnings are added to your other income and taxed at your marginal rate (10-37%). Federal tax guide →
Non-Resident Alien (NRA)
An individual who is not a U.S. citizen or green card holder. Subject to 30% flat withholding on gambling winnings. Non-resident guide →
Ordinary Income
Income taxed at standard tax rates (10-37%). Gambling winnings are taxed as ordinary income. Short-term capital gains are also taxed as ordinary income. Federal tax guide →
Professional Gambler
A gambler whose primary income source is gambling. Qualifies for Schedule C business deductions and can deduct all business losses. Pro gambler guide →
Schedule 1 (Form 1040)
Additional Income and Adjustments to Income. Line 8b is where you report all gambling winnings. IRS forms guide →
Schedule A (Form 1040)
Itemized Deductions. Line 16 is where you deduct gambling losses (up to winnings). Must itemize to claim losses. Schedule A guide →
Schedule C (Form 1040)
Profit or Loss from Business. Used by professional gamblers to report gambling income and business expenses. Pro gambler guide →
Schedule D (Form 1040)
Capital Gains and Losses. Used to report capital gains from selling crypto won from gambling. Crypto tax guide →
Self-Employment Tax
15.3% tax (Social Security + Medicare) paid by professional gamblers on net Schedule C income. Casual gamblers do not pay self-employment tax on gambling income. SE tax guide →
Session Logs
Contemporaneous records of gambling activity including date, location, game type, time played, amount won/lost. Required for audit protection. Record keeping guide →
Standard Deduction
A fixed deduction amount ($15,000 for single filers in 2026) that reduces taxable income. If you take standard deduction, you cannot deduct gambling losses. Itemizing guide →
Taxable Event
Any transaction that triggers a tax liability. For gambling, winning money is a taxable event. For crypto, selling or trading is a taxable event. Taxable events guide →
Taxpayer Identification Number (TIN)
Your Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN). Required to avoid backup withholding. Withholding guide →
W-2G Threshold
The minimum winnings amount that triggers casino reporting on Form W-2G: $600 for poker, $1,200 for slots, $5,000 for sports betting. W-2G guide →
Withholding Tax
Tax deducted from gambling winnings before payment. 24% for US citizens/residents without TIN; 30% for non-resident aliens. Withholding guide →
📚 Related Gambling Tax Guides
All tax guides →💰
Federal Gambling Tax
Complete guide to federal tax rates, brackets, and reporting requirements.
📄
IRS Forms for Gambling
W-2G, 1040, Schedule 1 – how to fill them correctly.
📉
Deducting Gambling Losses
How to properly document and deduct losses on Schedule A.
💰
Tax Calculator
Estimate federal and state taxes on your gambling winnings.
Our Experts
🧠 Trusted by Tax Professionals
Meet the team →Our team includes former IRS tax professionals who have helped thousands of players understand gambling tax terminology and file correctly.
Michael Johnson
Lead Reviewer · 12 yrs casino ops
Tax terminology expert
Kevin Lee
Tax Specialist · 6 yrs
Former IRS analyst
David Thompson
Pro Gambler Tax Specialist
Glossary expert
Trust Signals
30+ terms
defined clearly
IRS-compliant
definitions
Updated for 2026
tax season
No paid placements
100% independent
50K+ monthly readers
trust our glossaries