New promotions are always rolling in at bk4. Welcome bonuses, weekly cashback, free bets, reload offers — all in one place. Claim them before they're gone.
Sign up and make your first deposit at bk4 to claim a 150% bonus, up to ৳15,000. This is a limited-time offer — grab it while you can.
The offers below are updated regularly — keep checking back
Special odds boosts are available on selected matches at bk4 during IPL. Get 15% better odds than usual — make the most of every big match.
Had a losing week? No worries. bk4 automatically credits 10% cashback every Monday. No application needed, no conditions attached.
A special launch offer is running on the new Live Casino section. bk4 covers your first bet on selected games — start playing without spending a single taka of your own.
Invite your friends to bk4. Every friend who registers and makes their first deposit puts ৳300 in bonus straight into your account. More friends, more earnings.
Bk4 VIP members get a 20% reload bonus on every Tuesday deposit, up to ৳5,000. Just deposit and the bonus is yours.
Every registered bk4 member receives a special bonus on their birthday. The amount varies by membership tier. Add your date of birth to your profile to qualify.
Bangladesh has no shortage of online betting platforms. But at most of them, promotions mean a one-time bonus at sign-up and nothing after that. bk4 changes that completely.
There's a different offer for every day of the week. Monday cashback, Tuesday reload bonus, weekend sports boosts — promotions are planned around a calendar so every member consistently gets something. That's what sets bk4 apart.
During cricket season in particular — IPL, World Cup, or Bangladesh national team matches — bk4 launches extra odds boosts and special betting challenges, all easily accessible to regular members.
Regular bettors know just how valuable cashback can be. Even after a rough week, getting 10% back takes a real load off. At bk4, cashback is automatic — no separate claim needed.
Types of Offers Available at bk4
New members receive up to a 150% bonus on their first deposit — bk4's most popular offer.
Earn an extra 10–20% reload bonus every time you make a weekly deposit.
Weekly cashback on net losses — credited directly to your wallet, no application needed.
Place bets on selected matches or games at no cost — available for a limited time.
On big matches, an extra percentage is added on top of standard odds — especially for cricket and football.
Refer a friend and both of you get a bonus. The more you refer, the more you earn.
Join bk4's special tournaments, climb the leaderboard, and win extra prizes.
If your date of birth is saved in your profile, your birthday bonus will be credited automatically on the day.
When Does bk4 Run Special Offers Throughout the Year?
A special welcome bonus of up to 200% launches for members who register on bk4 in the new year. More than a thousand new members join during this seven-day campaign.
Bk4 launched a special odds boost for the Bangladesh Premier League final. Selected bets qualify for up to 25% enhanced odds.
Throughout the entire month of Ramadan, bk4 runs a double cashback offer for all members — making it the longest-running promotion of the year.
From the moment IPL kicks off, bk4 runs dedicated boosts and free bet offers for every matchday — and they keep going right through to the end of the season.
Bk4 is bringing special parlay bonuses and multiple bet offers for the upcoming series. Full details will be announced soon.
Claim Your Bonus in Just Four Easy Steps
Sign up at bk4 with just your mobile number and a password. Takes no more than two minutes.
Deposit via Mobile Pay, Nagad, or Rocket — starting from as little as ৳500. Your welcome bonus will be credited automatically.
After logging in, go to the Promotions section to view active offers and activate the one you want.
Once your bonus is active, place bets on your favourite games. Cashback and rewards will be credited automatically at the scheduled time.
Long-time bk4 members tend to follow one strategy — planning their betting around the promotions calendar. That means betting through the week before Monday cashback is credited, picking up the reload bonus on Tuesdays, and making the most of odds boosts on big match days.
Many people assume bonuses come with complicated terms. At bk4, it's a little different. Most offers are written in plain language, and the wagering requirements are below the industry average. The referral bonus, in particular, comes with virtually no strings attached.
VIP and High Roller members also receive exclusive custom offers that never appear on the public page. A dedicated manager personally keeps them informed about which offers are available each week. This is the heart of bk4's premium experience.
Frequently Asked Questions About Promotions