Colorado Sports Betting: Legal CO Sportsbooks, Apps & Laws

Yes. Both online and retail sports betting are legal and regulated. The market is overseen by the Colorado Division of Gaming, an agency inside the Colorado Department of Revenue, together with the Colorado Limited Gaming Control Commission, which sets rules and approves licenses. The same two bodies have regulated Colorado’s limited-stakes casino industry since 1991, and the state applied that same model to sports betting.

Online Sports Betting

Mobile and online betting is legal across the entire state, and it dominates the market. Over the first five months of legal betting, mobile platforms accounted for about 98.4 percent of all wagers, and online still makes up roughly 98 to 99 percent of handle today. Every licensed online sportsbook must be tied to a Colorado casino under the state’s master license model, in which each casino may carry one online brand, commonly called a skin.

Retail (In-Person) Sports Betting

Retail sportsbooks operate inside licensed casinos, which Colorado law restricts to three historic mining towns: Black Hawk, Central City and Cripple Creek. Two tribal casinos in the state’s southwest corner, run by the Southern Ute Indian Tribe and the Ute Mountain Ute Tribe, also offer wagering under separate federal compacts. Retail plays a small role overall, often well under 1 percent of statewide handle in a given month, serving mostly tourists and casual bettors.

Who Can Bet

You must be 21 or older to bet on sports in Colorado, online or in person. You do not need to be a Colorado resident, but you must be physically within state lines when you place a wager. Online sportsbooks confirm your location with geolocation technology, a requirement the Division of Gaming spelled out in its geofence bulletin, and retail books check a government-issued ID at the counter. Athletes, coaches, referees and other officials cannot bet on events in their own sport.

How We Rank Colorado Sportsbooks

We begin with licensing and compliance: a book must hold an active license from the Colorado Division of Gaming and maintain a valid casino partnership. From there we weigh pricing and market depth, app quality and reliability, live betting and streaming, bonus value and the fairness of terms, banking options and payout speed, and the quality of responsible gambling tools.

Are Offshore Sportsbooks Legal in Colorado?

No. Offshore sportsbooks are not licensed or regulated by the Colorado Division of Gaming, and they are not part of the legal Colorado market. These sites are based outside the United States and operate under foreign licenses, so they do not answer to Colorado law or any U.S. state regulator. The state and most Colorado betting guides consistently warn bettors to use licensed operators instead.

The Risks of Betting Offshore

Because offshore books sit outside Colorado’s system, none of the protections that come with a licensed sportsbook apply. There is no state oversight or recourse, so if a deposit vanishes, a withdrawal is denied or winnings are voided, there is no Colorado regulator to appeal to and little practical way to recover funds. There are no guaranteed consumer protections, since licensed Colorado books must protect customer funds and follow state standards for fairness, integrity and security while offshore sites carry no such state-backed guarantees. Payment and withdrawal problems are common, as offshore books lean heavily on cryptocurrency and other hard-to-reverse methods. Colorado’s voluntary self-exclusion program and responsible gaming tools do not cover offshore operators, and bonus rules, rollover requirements and account limits get no state review.

The sites below currently accept Colorado bettors. They are not licensed in Colorado, and the risks above apply to every one of them.

Note on Bovada: Bovada is a well-known offshore brand, but it does not currently accept players located in Colorado, so it is not included above. That could change in the future.

Why Licensed CO Sportsbooks Are the Safer Choice

With more than a dozen licensed online sportsbooks competing in Colorado, bettors already have access to competitive odds, strong apps, regulated bonuses, protected funds and state-backed responsible gambling tools, all inside the legal market. The state’s position, echoed by most Colorado betting guides, is that with this many legal options, the added risk of betting offshore is hard to justify.

Black Hawk Sportsbooks

Monarch Casino Resort Spa (BetMonarch) operates a state-of-the-art retail sportsbook with massive screens and multiple betting areas, and it powers the in-house BetMonarch app. The minimum bet is one dollar on the app and five dollars at the counter, among the lowest in the state. Ameristar Casino Black Hawk is one of Colorado’s largest casino properties, a high-rise resort whose sportsbook features more than a dozen betting stations and a large video wall, and it is the master license behind theScore Bet. The Lodge Casino previously hosted a SuperBook lounge, which opened in 2021 as SuperBook’s first in-person book outside Las Vegas; SuperBook has since exited, but the Lodge remains a major retail gaming property. Bally’s Black Hawk and Mardi Gras carry the master licenses behind DraftKings, FanDuel and Bally Bet, with DraftKings opening its retail book at Mardi Gras in July 2020. Horseshoe and Lady Luck anchor the Caesars retail and online operation, where Caesars Rewards members can earn and redeem loyalty credit.

Cripple Creek Sportsbooks

Midnight Rose Hotel and Casino is the Cripple Creek partner for BetMGM, convenient for bettors in the Colorado Springs area. J.P. McGill’s Hotel and Casino, part of the Triple Crown Casinos group, is the master license behind BetRivers. Double Eagle Hotel and Casino provides the market access behind Fanatics Sportsbook. Additional options include Johnny Nolon’s (Hard Rock Bet partner), Wildwood Casino (home of BetWildwood), Bronco Billy’s, Colorado Grande and Century Casino Cripple Creek.

Central City Sportsbooks

Central City has the smallest retail footprint. Grand Z Casino has historically been the main retail sportsbook, with kiosks also available at sister property Johnny Z’s. Century Casino and Famous Bonanza are other gaming venues in town.

Tribal Casino Sportsbooks

Two tribal casinos in southwest Colorado operate sportsbooks under federal compacts. Sky Ute Casino Resort in Ignacio, run by the Southern Ute Indian Tribe, offers a retail book and the Sky Ute Sportsbook app and is one of only a handful of tribally operated sportsbooks in the country. Ute Mountain Casino in Towaoc, run by the Ute Mountain Ute Tribe, offers a retail lounge plus kiosks. Both are a long drive from the main population centers, so an overnight stay is common.

Colorado books compete hard for new users, and understanding the main bonus types helps you choose well. The most common are: bet-and-get, where you place a small qualifying bet and receive a fixed amount of bonus bets, sometimes win or lose, for example Bet 5 dollars, Get 200; first-bet offers, where a losing first wager is refunded in bonus bets up to a cap such as 1,500 dollars; deposit matches, where the book matches a percentage of your deposit; no-sweat bets, where a losing qualifying bet is refunded as a bonus bet; odds boosts and profit boosts, which enhance odds on selected markets; loyalty and rewards programs such as FanCash, MGM Rewards and Caesars Rewards; and referral, cashback and seasonal promotions tied to major events.

How Bonus Bets Work

Bonus bets are almost always non-withdrawable: you bet them, and only the winnings, not the stake, return to your balance. Most expire quickly, often within seven days, and carry minimum-odds requirements. Always read each offer’s terms for the qualifying bet, minimum odds, expiration and any rollover before opting in.

Current Welcome Bonuses at Legal CO Sportsbooks

The table below shows the typical welcome offer at each major licensed Colorado sportsbook. Offers and promo codes change frequently and are not guaranteed, so always confirm the current deal and terms in the operator’s app before opting in.

How to Claim a Bonus

Sign up for a new account, verify your identity and location, deposit the minimum required, opt in to the offer (entering a promo code if one is listed), then place the qualifying wager. Bonus credit is issued according to the offer’s terms.

Colorado is one of the most app-driven betting markets in the country, with roughly 98 to 99 percent of all wagers placed online. Remote registration is essential here because the state’s casinos sit in three far-flung mountain towns, so the law was built around statewide mobile access from day one.

How to Download and Register

Licensed apps are available in the Apple App Store and on Google Play. Registration is fully remote: you provide your name, email, date of birth, the last four digits of your Social Security number and your address, then verify your age (21+) and location. There is no need to visit a casino first, and setup usually takes under 15 minutes.

Geolocation and How Mobile Betting Works

Before any wager, the app verifies you are physically inside Colorado using device location data, a requirement set out in the Division of Gaming’s geofence bulletin. If the system detects you are outside state lines, it blocks the bet. This is why an out-of-state resident can bet legally as long as they are inside Colorado at the time.

Best Apps by Category

Different books lead in different areas. For overall app experience and same-game parlays, FanDuel and DraftKings are the usual picks. For live, in-play betting and streaming, bet365 stands out. For prop depth and parlay tools, BetMGM and DraftKings rate highly. For rewards, Fanatics (merchandise via FanCash) and Caesars (Caesars Rewards) lead. For reduced-juice pricing and higher limits, BetRivers and Circa appeal to sharper bettors.

Background: Limited Gaming Since 1991

Colorado first legalized limited-stakes casino gambling in 1991, confined to Black Hawk, Central City and Cripple Creek with low maximum bets. A 2008 measure, Amendment 50, later allowed 24-hour gaming and higher limits. This existing casino framework is what sports betting was eventually built on top of, which is why every sportsbook must tie to one of those casinos.

The PASPA Repeal (2018)

For decades, the federal Professional and Amateur Sports Protection Act effectively banned state-sanctioned sports betting outside Nevada. On May 14, 2018, the U.S. Supreme Court struck down PASPA, clearing the way for states including Colorado to legalize and regulate sports wagering.

HB19-1327 and the Legislature

In April 2019, House Bill 19-1327, sponsored by then-House Majority Leader Alec Garnett, was introduced to legalize and regulate sports betting. It tied sports betting to existing licensed casinos and set a 10 percent tax on net proceeds. Gov. Jared Polis signed the bill in May 2019, but because Colorado’s constitution requires voter approval for new taxes, the question moved to the November ballot.

Proposition DD (November 2019)

In November 2019, voters approved Proposition DD, which authorized sports betting and directed tax revenue largely to the Colorado Water Plan. It passed by a razor-thin margin of roughly half a percentage point, about 51.4 percent in favor and a gap of only around 20,000 votes, one of the closest gambling-expansion votes in the country.

Launch (May 1, 2020)

Legal betting went live on May 1, 2020, with DraftKings, FanDuel, BetMGM and BetRivers among the first online operators. The COVID-19 pandemic limited retail openings early on and pushed even more activity online; the first retail sportsbook, Betfred at Saratoga Casino, opened June 17, 2020. By the end of 2020, 15 online sportsbooks had launched.

Growth Since Launch

The market expanded fast. By the end of 2021 the number of active online books nearly doubled to around 26, and cumulative wagers passed 5 billion dollars within about 20 months. In November 2024 voters approved Proposition JJ, removing the cap on how much sports betting tax revenue the state could keep for water projects. Annual handle has since climbed above 6.5 billion dollars.

Governing Bodies

Two state bodies oversee sports betting. The Colorado Division of Gaming, inside the Department of Revenue, handles day-to-day regulation, licensing, compliance and enforcement. The Colorado Limited Gaming Control Commission sets the rules, approves licenses, sets fees and handles discipline. Together they maintain the official list of licensed operators and the catalog of approved bets, and only bets that appear in that catalog may be offered in the state.

The Three License Types

Colorado created three license categories under HB19-1327. A Master License is available only to the state’s licensed casinos (up to 33) and lets a casino conduct sports betting through partnerships with operators. A Sports Betting Operator License covers running a land-based retail sportsbook. An Internet Sports Betting Operator License covers running an online sportsbook, with each casino able to partner with one online operator, granting that brand a single skin.

Licensing Fees

The Limited Gaming Control Commission approved operating fees in April 2020: 54,000 dollars for an internet sports betting operator or master license conducting internet betting, and 12,500 dollars for a retail operator or master license conducting retail betting. Operators also face application and renewal fees, and the program is funded so it does not draw on the state’s general tax dollars.

How the 10 Percent Tax Is Distributed

Operators pay 10 percent on net sports betting proceeds. By statute, that revenue is distributed in a set order: first, the Division of Gaming’s administrative costs; then 6 percent to a hold-harmless fund that reimburses existing casinos and their local governments for any gaming revenue lost to the expansion; a set amount for problem gambling services; and the remainder to the Water Plan Implementation Cash Fund for projects under the Colorado Water Plan. Colorado limits how much operators can deduct for promotional bets, and HB25-1311 is phasing that deduction down before free-bet deductions are removed.

Key Laws and Statutes

The core legal sources are House Bill 19-1327, the enabling law; Proposition DD (2019), the voter-approved measure; House Bill 25-1311 (2025), which phases out the free-bet deduction; Senate Bill 26-131 (2026), the consumer-protection law; and the Colorado General Assembly sports betting tax revenue page.

Official State Resources

The main regulator pages are the Colorado Division of Gaming sports betting page, the licensed operators list, the rules and regulations, the approved bets catalog, the monthly reports, and the BetSmart Colorado responsible gaming portal.

Senate Bill 26-131

Gov. Polis signed Senate Bill 26-131 in June 2026, the first major reform to Colorado sports betting since legalization, with an effective date in August 2026. It bans credit cards for funding betting accounts, limits customers to six deposits in any 24-hour period, prohibits promotional push notifications and text messages soliciting bets, and bars operators from targeting anyone under 21. Earlier proposals to ban certain prop bets and television advertising were stripped before the bill passed. The state also plans to collect and publish consumer-impact data in the coming years.

House Bill 25-1311

House Bill 25-1311, signed in May 2025, phases out the ability of sportsbooks to deduct free bets from their taxable proceeds, fully effective by July 1, 2026. Removing that deduction increases the share of operator revenue that is taxed, and therefore the money flowing to state water projects.

Allowed Markets

Colorado offers a wide menu: moneylines, point spreads, totals, futures, parlays, teasers, same-game parlays, game and player props on professional sports, and live in-play betting. There is no statutory cap on bet size; operators set their own limits. Only bets in the state’s official catalog may be offered.

College Betting Rules

You can bet on college games, including in-state programs such as the Colorado Buffaloes, Colorado State Rams and Air Force Falcons. However, player prop bets on individual college athletes are banned. This is the single most notable restriction in an otherwise wide-open market, and it is one reason licensed Colorado books are stricter than offshore sites about what they will list.

Prohibited Markets

Colorado does not allow betting on high school sports under any circumstances. Esports wagering is restricted and must be individually approved. Markets on award shows, political outcomes and other non-sporting events are generally not permitted at licensed books, and online casino and online poker remain illegal statewide.

Who Cannot Bet

People with direct influence over a contest, including players, coaches, referees and other officials, are barred from betting on events in their own sport, to protect the integrity of the games.

Live, or in-play, betting lets you wager on a game as it happens, with odds updating in real time. It is fully permitted on professional and collegiate sports, subject to the same catalog and college prop restrictions. bet365 is widely considered the leader for live betting in Colorado, with thousands of in-play markets per event and live streaming; BetMGM and Caesars also offer strong live interfaces, and many books provide cash-out features to settle a live wager early.

Handle is the total amount wagered. Revenue, or net sports betting proceeds, is handle minus winnings paid out, and hold is revenue divided by handle. For example, if bettors stake 200 million dollars and books pay out 188 million dollars, revenue is 12 million dollars and the hold is 6 percent. The state taxes revenue, not handle.

For the 2024-25 state fiscal year, Colorado set records with about 6.3 billion dollars wagered and 36.8 million dollars in total taxes collected, a 354 percent increase over the first fiscal year of betting. In November 2025 alone, bettors wagered about 694.6 million dollars, the state’s second-highest handle month on record. The most-wagered sports are typically pro football, pro basketball, table tennis, and college football and basketball.

Where the Tax Money Goes

After administrative costs, the casino hold-harmless fund and problem gambling services, the large majority of revenue goes to the Colorado Water Plan. In September 2025 the Limited Gaming Control Commission certified a distribution of more than 35 million dollars, including about 33.5 million dollars to the Colorado Water Conservation Board and roughly 1.7 million dollars to the hold-harmless fund. Those dollars fund projects such as the Gunnison Water Supply Project and the Colorado Connectivity Channel. Proposition JJ (2024) lets the state keep excess revenue for these purposes rather than refunding it to taxpayers.

Federal and State Tax Rates

All gambling winnings are taxable income at the federal level and must be reported, no matter how small. Federally, winnings are taxed at your ordinary income tax rate, with brackets running from 10 percent to 37 percent depending on total income, and for certain large or long-shot wins the operator withholds 24 percent up front. At the state level, Colorado has a flat income tax rate of 4.40 percent, which applies to gambling winnings just like other income.

The W-2G Form and Reporting Thresholds

When a payout is large enough, the sportsbook issues IRS Form W-2G reporting the winnings and any tax withheld, and files a copy with the IRS and the Colorado Department of Revenue. Starting with the 2026 tax year, a unified reporting threshold of 2,000 dollars applies to many categories, including sports betting: a sports wager generally triggers a W-2G when the winnings (minus the wager) are at least 2,000 dollars and at least 300 times the amount staked. A 2,100 dollar win on a 5 dollar ticket would trigger one; a 2,100 dollar win on a 100 dollar ticket would not, because it fails the 300-to-1 test. Beginning in 2027, that 2,000 dollar threshold is set to adjust each year with inflation. Even when no W-2G is issued, the winnings are still taxable and must be reported.

Deducting Losses and Keeping Records

You can deduct gambling losses, but only up to the amount of your winnings, and only if you itemize deductions rather than taking the standard deduction. Keep a detailed gambling log: dates, types of wagers, locations or apps, amounts won and lost, and supporting documents such as W-2Gs and bank statements. Colorado state lottery winnings of 5,000 dollars or less are exempt from state tax, but that exemption is specific to the lottery and does not apply to sports betting. Official guidance is available from the Colorado Department of Revenue gambling winnings page and the Colorado Individual Income Tax Guide.

Colorado’s pro teams are based in or around Denver and draw heavy betting interest: the Broncos (NFL), Nuggets (NBA), Avalanche (NHL), Rockies (MLB) and Rapids (MLS). Futures, game lines, player props and team props are widely available. College betting centers on the Colorado Buffaloes, Colorado State Rams and Air Force Falcons, with team markets such as moneylines, spreads, totals and futures available but no player props on college athletes. Beyond local teams, Colorado bettors wager heavily on national and international events: the Super Bowl, NBA Finals, World Series, Stanley Cup, March Madness, the College Football Playoff, the Masters and other golf majors, Grand Slam tennis, NASCAR, UFC and the Olympics and World Cup when in season.

Deposit Methods

Licensed books support online banking and ACH/eCheck, debit cards, PayPal and other e-wallets such as Skrill, Apple Pay and Google Pay, Play+ prepaid cards, PayNearMe cash deposits at retail locations, and cash at casino cages. Important: under SB 26-131, credit card funding is being eliminated, and many operators had already disabled it. Cryptocurrency is not accepted at licensed Colorado sportsbooks; only offshore sites use it.

Withdrawal Methods and Timing

Withdrawals typically go back to your bank account, an e-wallet, a Play+ card, by check, or as cash at a casino cage. E-wallets are usually fastest, often within a day or two, while bank transfers and checks take longer. First-time withdrawals may require extra identity verification, and verifying a joint bank account can require ID from everyone on it.

Daily Fantasy Sports

Daily fantasy sports are legal in Colorado, regulated separately from sportsbooks, with a minimum age of 18. Major operators such as DraftKings and FanDuel offer DFS contests alongside their sportsbooks, and contests on collegiate and amateur athletics carry their own restrictions.

Horse Racing and Off-Track Betting

Horse betting is legal in Colorado. Bally’s Arapahoe Park in Aurora is the state’s lone live thoroughbred track, with live racing typically in late summer and early fall plus year-round simulcasting. Around ten off-track betting locations operate statewide, mostly around Denver and Colorado Springs, and online horse wagering is available through some platforms.

Casinos, Lottery and Online Casino

Commercial casino gaming is limited to Black Hawk, Central City and Cripple Creek, plus the two tribal casinos. Colorado runs a state lottery. Online casino and online poker remain illegal; residents who want casino-style play online are limited to legal sweepstakes and social casino platforms.