Best Sportsbook Bonuses December 2021

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How to Evaluate Sportsbook Bonus Deals + The Best Bonuses at Sportsbooks in December 2021

Matched deposit bonuses, free bets and other special promos are available at every sportsbook online.

Unfortunately, the terms and conditions and fact that these bonuses are all arranged slightly differently makes them very difficult to accurately compare.

That is where this page comes in.

Instead of just listing the latest sportsbook bonuses for your geo and letting you take pot luck. I have provided an explanation as to how these bonuses work, which will let you make smarter choices whenever you are faced with a choice of 2 or more bonuses.

Of course, you might want to skip all that stuff and just see the easiest to clear or biggest current offers for this month. Those are in the table right below – after that I get into the nitty-gritty of how sportsbook bonuses really work!

BEST EUROPEAN SPORTSBOOK BONUSES December 2021
Unibet Sports Bonuses
  • €/£/$40 Free bet welcome bonus + €10 for casino gaming
  • Easy 3x rollover + Plenty of contests, promotions every single month
  • Watch live sports, in-play markets and even betting on virtual sports
Play NowReview
Bwin Sportsbook Bonuses
  • €/£20 back-up bet for new accounts (no-lose!)
  • In play free bet club, best odds guaranteed and weekly specials
  • Long list of promotions focused on major sport events + top-rated betting interface
Play NowReview
BetOnline Welcome Free Bets
  • 100% bonus + $25 bets for props, mobile bets, live betting and horse racing
  • Bigger bonuses for Crypto deposits + lifetime 25% reloads
  • Best for US sports, golf and major sporting events (UK / EU / CA Welcome!)
Play NowReview
BEST SPORTSBOOK BONUSES December 2021
Unibet Sports Bonuses
  • €/£/$40 Free bet welcome bonus + €10 for casino gaming
  • Easy 3x rollover + Plenty of contests, promotions every single month
  • Watch live sports, in-play markets and even betting on virtual sports
Play NowReview
Bwin Sportsbook Bonuses
  • €/£20 back-up bet for new accounts (no-lose!)
  • In play free bet club, best odds guaranteed and weekly specials
  • Long list of promotions focused on major sport events + top-rated betting interface
Play NowReview
BetOnline Welcome Free Bets
  • 100% bonus + $25 bets for props, mobile bets, live betting and horse racing
  • Bigger bonuses for Crypto deposits + lifetime 25% reloads
  • Best for US sports, golf and major sporting events (UK / EU / CA Welcome!)
Play NowReview
BEST US SPORTSBOOK BONUSES December 2021
BetOnline Sportsbetting Bonus 2021
  • 100% Welcome bonus up to $1000 - bigger with Crypto
  • 25% Lifetime reload guarantee, for every deposit made
  • Promos for live betting ($25 offer) mobile ($50 offer) and racebook deals too.
Play NowReview
Bovada Sportsbetting Bonus 2021
  • 50% Welcome bonus up to $250 with only a 5x rollover requirement
  • Famously good for promos linked to the major sports events
  • Reduced juice lines and wide coverage of college sports / international sports too
Play NowReview
Intertops Betting Bonus 2021
  • $200 Welcome bonus (code ROOKIE200)
  • $1000 Parlay contest for the biggest parlay win!
  • 3x$50 Free Bets (Facebook tie-in) + many other offers for different sports
Play NowReview

How to Compare Welcome Bonuses (+ a word about lifetime value!)

I’ll start with some simple examples, and then factor in some of the important differences to look out for.

Lets say you have narrowed your search to 2 sportsbooks, each of them offering a 50% bonus which is matched to your first deposit. What decides which is the best bonus deal?

3 things to look out for before you go any further:

  • What is the play-through or wagering requirement for each bonus?

  • How long do you have to clear complete these requirements?

  • Are there any rules or restrictions on what types of bet count towards your wager through?

Bet through / Wagering Requirements in Sportsbook Welcome Bonuses

This number is a multiple of your deposit and the bonus, and shows how many bets you need to make before your bonus is available to withdraw. There are big variations in these requirements, ranging from around 3 times the bonus bet amount to more than 20 times.

For example, you deposit $200 at a bookmaker and receive a 50% bonus with a 10x wagering requirement. This means you will need to bet $200+$100 x 10 = $3000 before you can withdraw your bonus. How easy this is depends on how frequently you bet, the size of each bet and any other rules which restrict your wagers. Examples include only counting bets over certain odds (so no easy pickings with odds-on favorites) or a minimum of 3 outcomes to exclude match-ups in golf or tennis.

Time to Complete?

Time to Complete Sports Betting BonusesWhile it might be easy to meet the bet-through requirements over the course of a season, going so quickly can be a challenge that many bettors would not enjoy. For example if a bonus is only valid for 30 days, then you might well be better off taking a free bet instead. You will find a lot of bonuses in the 60 to 90 day range. 

Look out for sportsbooks with very short time to complete the play-through. This is often a trap, as the lack of mid-week action makes it impossible to wait for one bet to settle before placing the next one.

Rules and Restrictions for Sportsbook Welcome Deals

It is worth checking the small print for the rules when you compare bonuses. Underneath the legal jargon there are rules, restrictions and ways that a sportsbook might trip you up.

Many bookmakers will have restrictions on betting on big favorites, with some even specifying that all bets must be even money (+100) or over to count towards your bonus clearing. It is those who insist on bets above 2/1 (+ need this number) that you need to watch out for. This is tough ask at the best of times, when combined with a 10x wager-through requirement it can be extremely difficult.

Look out for exluded sports, leagues or types of betting.

Best Free Bet Welcome Bonuses at Online Sportsbooks

The other common type of welcome bonus is a free bet. These usually require a minimum deposit, then award you a bet - sometimes totaling more than the amount you deposited. For example, deposit £25 and get a free bet worth £25. Simple offers pay you the return if you win, though do not credit you the stake used to bet with. If your bet loses, well, better luck next time! If your bet does win then you’ll need to be aware of what terms and conditions the bookmaker attaches.

For example, if you used your £/$25 free bet in a tennis match and win at even money, your account will be credited with just £25 – and not £50 (stake + returns).

No-Lose Free Bets

Free Mobile BetsA different way of handling these offers is to give you a bet which has your stake returned if you lose. This return is in the form of bonus money, which has a 3x (or more) play-through requirement to clear. Some sports betting sites offer multiple free bets to get players to try out different parts of their site / app. For example, BetOnline offer free $25 bets for parlays, props, mobile and live betting - plus a separate offer in their racebook. All of these are based on the 'returning the stake as a bonus if you lose' system.

Again, you will often find restrictions on the odds you can take, or the types of bet that are valid for your free bets. These offers can be very profitable, and are often tied in with the major events like the Superbowl or Champions League soccer matches.

Other Types of Sportsbook New Player Bonus

You will find several common themes in welcome bonuses beyond the simple deposit match or free / no-lose bet offers. 

You might also short term boosts to your winnings – for example 10% on top of any wins on your first few bets or for a specific sporting event. Offers which involve the other types of gambling that sportsbooks offer are also common. Why not take that $10 and try your luck at the live dealer casino for example.

For US sportsbooks, cryptocurrency deposits attract bigger bonuses for your first deposit, as well as ongoing boosts. Some books give you a second bite at a 'first deposit' bonus if you use Bitcoin the second time around. Others boost the match to 100% (from 50%) or have bigger reloads. 

Look out for contests, free to enter leagues at some sportsbooks have massive prize pools. 

The Most Important Benefits of all – Ongoing Rewards

Comparing Betting Bonuses OnlineSo far, I have focused on the sportsbook welcome bonuses. What you will find is that the ongoing offers and promotions are much more important to your long term betting bankroll once you find a sportsbook you are happy with.

This is not just a small difference either, those ongoing rewards could be 50% or more of the benefits you receive, even if you only stick around for a couple of years.

Of course, this leads to a separate question:

How do I compare the ongoing rewards offered by different sportsbooks?

This starts before you join a new site, and involves finding out whether they have a long list of promotions and specials – showing that they look after their regular bettors.

There are many different types of promotion, though the most common involve extra bets or money back on different sporting events. For example, a free £ / $20 bet if you place 3 equal sized bets on the weekend’s NLF schedule (for example). Some of these will involve money back when there is a certain outcome – a soccer bet which returns your stake when there are no goals (or when your bet loses in the 88th minute+ are common examples).

What you are looking out for is how regularly your bankroll will be topped up with these specials.

You should also look out for incentives to try mobile betting, in-play (live) betting or cross-over promos to other areas of gambling such as Virtual Sports, casino or (where this is separate) a racebook.

US Racebooks usually have rebates on losing bets on a weekly basis. These will range from a few percent to as much as 7%. While the amounts might seem small, at the end of the year these margins are exactly what big profits are made from!

The Best Sportsbooks Offer Regular Reload Bonuses

We all hope to deposit only once, and build from there – though the reality is that anyone can hit a bad run. Reload bonuses work in the same way as the welcome offers, with a percentage match to your deposit amount, plus a wager through requirement.

Many sportsbooks offer these as part of special promotions, and will e-mail you with offers if you are inactive for a while (there are opportunities here if you have the patience and accounts at several bookmakers!).

One sportsbook which deserves a separate mention when it comes to reload bonuses is BetOnline. This book offer a lifetime 25% bonus on every deposit you make – see www.betonline.ag for the details.

Ongoing offers are more important than you might think – while the format will vary widely, you should look for those bookies that try hard to keep their current bettors engaged. If your current sportsbook will not, then it is time to find one that will!

BEST EUROPEAN SPORTSBOOK BONUSES December 2021
Unibet Sports Bonuses
  • €/£/$40 Free bet welcome bonus + €10 for casino gaming
  • Easy 3x rollover + Plenty of contests, promotions every single month
  • Watch live sports, in-play markets and even betting on virtual sports
Play NowReview
Bwin Sportsbook Bonuses
  • €/£20 back-up bet for new accounts (no-lose!)
  • In play free bet club, best odds guaranteed and weekly specials
  • Long list of promotions focused on major sport events + top-rated betting interface
Play NowReview
BetOnline Welcome Free Bets
  • 100% bonus + $25 bets for props, mobile bets, live betting and horse racing
  • Bigger bonuses for Crypto deposits + lifetime 25% reloads
  • Best for US sports, golf and major sporting events (UK / EU / CA Welcome!)
Play NowReview
BEST SPORTSBOOK BONUSES December 2021
Unibet Sports Bonuses
  • €/£/$40 Free bet welcome bonus + €10 for casino gaming
  • Easy 3x rollover + Plenty of contests, promotions every single month
  • Watch live sports, in-play markets and even betting on virtual sports
Play NowReview
Bwin Sportsbook Bonuses
  • €/£20 back-up bet for new accounts (no-lose!)
  • In play free bet club, best odds guaranteed and weekly specials
  • Long list of promotions focused on major sport events + top-rated betting interface
Play NowReview
BetOnline Welcome Free Bets
  • 100% bonus + $25 bets for props, mobile bets, live betting and horse racing
  • Bigger bonuses for Crypto deposits + lifetime 25% reloads
  • Best for US sports, golf and major sporting events (UK / EU / CA Welcome!)
Play NowReview
BEST US SPORTSBOOK BONUSES December 2021
BetOnline Sportsbetting Bonus 2021
  • 100% Welcome bonus up to $1000 - bigger with Crypto
  • 25% Lifetime reload guarantee, for every deposit made
  • Promos for live betting ($25 offer) mobile ($50 offer) and racebook deals too.
Play NowReview
Bovada Sportsbetting Bonus 2021
  • 50% Welcome bonus up to $250 with only a 5x rollover requirement
  • Famously good for promos linked to the major sports events
  • Reduced juice lines and wide coverage of college sports / international sports too
Play NowReview
Intertops Betting Bonus 2021
  • $200 Welcome bonus (code ROOKIE200)
  • $1000 Parlay contest for the biggest parlay win!
  • 3x$50 Free Bets (Facebook tie-in) + many other offers for different sports
Play NowReview

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