Best Credit Card Sign-Up Bonuses — 2026-08-25 to 2026-09-01

Top Picks This Week

Carnival Rewards Mastercard: 50,000 points after $1,000 in 90 days

• Issuer: see source
• Source: Frequent Miler
• Link: Frequent Miler
• Annual fee: see source
• What: The revamped Carnival Rewards Mastercard is offering 50,000 points after $1,000 in purchases within the first 90 days, worth $500 toward a Carnival cruise booking or onboard credits.
• Why it matters: That's $500 of value on just $1,000 of spend — a 50% return on spend, making this a standout co-brand welcome offer.

Bank of America Unlimited Cash Rewards Card: $250 welcome offer

• Issuer: Bank of America
• Source: Upgraded Points
• Link: Upgraded Points
• Annual fee: see source
• What: The Bank of America Unlimited Cash Rewards card now has a new and improved $250 welcome bonus (spend requirement not detailed in the article).
• Why it matters: It's a freshly boosted $250 cash-back welcome offer on an everyday cash rewards card, making it a timely option for anyone who was already considering the card.

Honorable Mentions

• September 2026 Buy Points Promotions and Bonuses — A roundup of current buy-points promotions across loyalty programs; not a sign-up bonus story, but useful for topping off balances to finish an award booking.