Amex Business Platinum vs Capital One Spark Cash Plus: Which Is Better?
Two cards built for serious spenders — one pays you in lounge access and transferable points, the other pays you in straight, uncapped cash. Six rounds. Real numbers. One honest scorecard.
The verdict
Capital One Spark Cash Plus takes it, 4–2 on rounds.
There's no universal winner — Amex Business Platinum pays out more only if you actively use its travel-specific perks, while Spark Cash Plus pays a guaranteed, uncapped 2% no matter how or where your business spends.
Choose Amex Business Platinum if…
- • You'll actually use Amex Travel, Fine Hotels + Resorts, Dell, and lounges
- • You want the highest redemption ceiling via premium-cabin transfer partners
Choose Capital One Spark Cash Plus if…
- • Your business runs high monthly volume, travel-heavy or not
- • You want a guaranteed, uncapped 2% with no valuation guesswork
Round by round
- Round 1Annual Fee vs ValueCapital One Spark Cash Plus winsAmex Business Platinum5/10
"The credits act like coupons"
- $3,300+ in credits if fully captured
- Credits are narrow, brand-specific 'coupons'
Capital One Spark Cash Plus7/10$150/yr
Fully refunded any year the business charges $150,000+
- Fee fully disappears at real volume — no brand math
- $150K/yr is a high bar for smaller businesses
Source: Capital One Spark Cash Plus dossier
This round goes to Capital One Spark Cash Plus.
- Round 2Welcome BonusCapital One Spark Cash Plus winsAmex Business Platinum6/10
Up to 300,000 pts
Requires $20,000 spend in 3 months; offer is personalized/targeted and may be lower
- Highest headline offer of the two, up to 300,000 points
- Real offer varies by applicant
Source: Amex Business Platinum dossier
Capital One Spark Cash Plus7/10$2,000 + $500 credit
Guaranteed offer, plus an extra $2,000 for every $500K spent in year one, uncapped
- Guaranteed, repeatable, no personalization risk
- $30K spend bar is steep for smaller businesses
Source: Capital One Spark Cash Plus dossier
So this round goes to Capital One Spark Cash Plus. Predictable beats pretty.
- Round 3Everyday Rewards RateCapital One Spark Cash Plus winsAmex Business Platinum4/10
1x (most spend)
1.5x tier requires a $5,000+ single purchase in narrow categories
- 5x points on flights and prepaid hotels via Amex Travel
- No everyday bonus categories at an elevated multiplier
Source: Amex Business Platinum dossier
Capital One Spark Cash Plus9/102%, uncapped
Every category, no minimum purchase, no earning cap; 5% on CO Travel bookings
- Works identically regardless of category or spend size
- No bonus-category upside for spend concentrated in one category
Source: Capital One Spark Cash Plus dossier
This round goes to Capital One Spark Cash Plus.
- Round 4Points/Cash Value & RedemptionAmex Business Platinum winsAmex Business Platinum8/10
1.7-2¢/pt avg
20+ transfer partners; premium-cabin redemptions can reach 5-20+¢/point
- Highest redemption ceiling of the two, via transfer partners
- Just 1¢/point for plain statement credits — top value needs transfer effort
Source: Amex Business Platinum dossier
Capital One Spark Cash Plus7/10"Praised for uncapped 2% rate"
- Dollar-for-dollar, no devaluation risk
- Hard 2% ceiling, no premium-redemption upside
So this round goes to Amex Business Platinum.
- Round 5Perks & ProtectionsAmex Business Platinum winsAmex Business Platinum9/10
$3,300+/yr
Lounge access, Fine Hotels + Resorts, Dell credits, airline fee credit, hotel status
- 1,550+ lounges including Centurion Lounges
- Most credits require enrollment and specific spend
Source: Amex Business Platinum dossier
Capital One Spark Cash Plus5/10No preset limit
Purchasing power flexes with spend; free employee cards with spend controls
- 5% back on CO Travel hotel/rental car bookings
- No lounge access or travel credits
Source: Capital One Spark Cash Plus dossier
So this round goes to Amex Business Platinum for its huge lounge network and credits.
- Round 6Credit Needed & Who It FitsCapital One Spark Cash Plus winsAmex Business Platinum5/10
700-720+ credit
NerdWallet recommends it only for big spenders who'll use the credits
- No preset spending limit accommodates high-volume spenders
- Narrow fit — built specifically around travel usage
Source: Amex Business Platinum dossier
Capital One Spark Cash Plus7/10720+ credit
Charge card requires strong business revenue; fits any high-volume category, not just travel
- Fits any high-spend business, regardless of category
- Must pay balance in full each month
Source: Capital One Spark Cash Plus dossier
This round goes to Capital One Spark Cash Plus.
Which one is for you?
High-spend business owner who lives in Amex Travel and lounges
→ Amex Business Platinum · 1,550+ lounges and $3,300+ in credits if you actually use Dell + Fine Hotels
Established, high-volume business crossing $150K+ a year
→ Capital One Spark Cash Plus · Annual fee refunded entirely, plus a repeatable $2K bonus every $500K spent
Business chasing premium-cabin international travel
→ Amex Business Platinum · Transfer partners can reach 5-20+ cents per point in premium cabins
Business that wants guaranteed cash, no valuation guesswork
→ Capital One Spark Cash Plus · Uncapped 2% cash back, dollar-for-dollar, no devaluation risk
Side by side
- $3,300+ in credits if fully captured
- Highest headline offer of the two, up to 300,000 points
- 5x points on flights and prepaid hotels via Amex Travel
- 1,550+ lounges including Centurion Lounges
- Free at real scale
- Scales further with repeat bonuses
- No management required
- No caps to plan around, even at high volume
- Credits are narrow, brand-specific 'coupons'
- Real offer varies by applicant; $20K spend bar is steep
- No everyday bonus categories like dining or office supplies
- Most credits require enrollment and specific spend to unlock
- Real $150 cost below the threshold
- $30K/3mo threshold out of reach for most small businesses
- Never beats 3% in a matched category
- Flat 2% never spikes to 3% like Bank of America's chosen category