Searching for plastic that kicks things off with an influx of bonus cash? We've tracked down the inside scoop on several sizzling offers furnishing new cardholders $450+ just for signing up and meeting intro spending requirements.

Let's review a few of the top contenders doling out the biggest upfront windfalls this year.

Ink Business Preferred - $750 Cash Bonus

Ink Business Preferred currently offers the highest publicly available welcome bonus on any business card - a whopping 100,000 points valued at $750 in travel redemptions. New applicants qualify once they spend $7,500 within the first 3 months from account opening.

Points can then be transferred to participating airline and hotel partners like Southwest, United, Marriott and more for premium travel rewards. Or simply cash in for statement credits, gift cards, merchandise and so on.

Ongoing perks like cell phone protection, free employee cards, and generous earnings categories maintain long term value as well beyond the initial sign up perk.

Citi Premier Card - 60,000 ThankYou Points

Next in the spotlight, Citi Premier showers new cardmembers with 60,000 ThankYou Points after they meet $4,000 minimum spend requirements during the first 3 months. Valued at $450 based on direct cash redemption rates.

ThankYou Points can also be transferred to airline partners or applied towards gift cards, retail credits, mortgage payments and more.

Strong everyday earnings rates across categories like travel, gas, groceries, restaurants and entertainment also bolster Citi Premier's lasting utility.

Capital One SavorOne for Newcomers - $450 Cash

Last but not least, Capital One's unique SavorOne variation helps individuals new to credit establish history while simultaneously enjoying rewards. New enrollees get $450 cash after spending just $500 within 3 months of approval - a solid bonus considering the low spending bar.

Ongoing 3% and 2% cash back rates across essentials like dining, groceries, streaming services make this one a long term keeper as well. Expect rewards redemption options aplenty.

Fast Rewards Start Here

Keep an eye out among leading issuers as lucrative signup bonuses and instant pay outs remain priority customer acquisition tools. Meet basic requirements early on and watch sign up cash/points materialize quickly! Apply for these hot deals now to kickstart commanding credit lines and rewards balances from the get go.