Capital One just rolled out a beefed-up welcome offer on the Spark Cash Plus business card, and it's built for big spenders. New cardholders can earn $2,000 cash back plus a $500 Capital One Business Travel credit after spending $30,000 in the first three months. Keep spending after that and you'll pick up an additional $2,000 for every $500,000 spent within the first year.

That $30,000 minimum spend is steep, roughly three times what Capital One is asking on the standard Spark Cash card right now for a smaller $1,000 cash back and $250 travel credit offer. But the math still works in your favor if you can hit it. Between the welcome bonus and the card's flat 2% back on every purchase, you're looking at roughly 8.5% total cash back on that first $30,000 in spend. Hotels and rental cars booked through Capital One Business Travel earn an even better 5%.

A few things to know before you apply. The $150 annual fee is not waived the first year, though it gets refunded if you spend $150,000 or more annually. This is a pay-in-full charge card with no preset spending limit, and unlike Capital One's Venture X Business, it does report to your personal credit and counts toward your Chase 5/24 status. It's also not expected to trigger Capital One's 48-month rule, since that restriction applies to personal cards, not business ones.

If you already hold a Capital One card that earns miles, there's an added angle worth considering. You can convert Spark Cash Plus cash back to Capital One miles at a penny each, which means the $2,000 bonus alone could become 200,000 transferable miles once you factor in an improved lineup of airline and hotel transfer partners. For a deeper look at how that conversion works, check out our guide to Capital One miles.

This offer makes the most sense for business owners with genuinely high monthly spend, think agencies, contractors, or anyone regularly running big vendor payments through a card. If $30,000 in three months feels like a stretch, the standard Spark Cash offer is the friendlier entry point with a much lower bar to clear.

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