Costs & Pricing

Metric	Spark Cash Plus	The Business Platinum Card® from American Express
Annual fee	$150 ($150 statement credit if ≥ $150,000 net purchases by membership anniversary)	$895 (new accounts since 09/18/2025; existing accounts moved to $895 on first renewal on or after 12/02/2025). Refundable if closed within 30 days of the Closing Date the fee posted.
Employee card fee	$0 (free employee and virtual cards)	$400 each Additional Business Platinum Card; $0 each Additional Business Expense Card; max 99 additional cards. Legacy accounts opened before 09/18/2025 and not notified of the change may still be billed $350.
Purchase APR	Not printed as revolving purchase APR; Pay Over Time variable APR ~25.74% (review sites, mid-2026) if balance carried	Pay Over Time only: Prime + 10.99% to Prime + 21.74% (marketed 17.74%–28.49% variable); cap 29.99%. Does not apply to Pay In Full charges paid by the due date.
Intro APR (purchases)	Not offered	Not offered
Foreign transaction fee	$0	$0
Late payment fee	2.99% late fee if minimum payment not paid by due date	$39 or 2.99% of any past-due Pay In Full amount, whichever is greater

Rewards & Value

Metric	Spark Cash Plus	The Business Platinum Card® from American Express
Base earn rate	Unlimited 2% cash back on net purchases (no category caps)	1X Membership Rewards point per $1 on other eligible purchases
Welcome bonus	$2,000 cash after $30,000 spend in first 3 months; +$2,000 for every $500,000 in year one (repeatable)	Personalized — marketed as high as 300,000 Membership Rewards points after $20,000 eligible spend in the first 3 months. Welcome offers vary and you may not be eligible. Do not treat 300k as a guaranteed public offer.
Redemption value	1¢ per 1¢ cash back on statement credit/check	Issuer does not publish a single cpp. Do not invent one. Pay-with-Points airfare is often treated near 1¢; hotel portal is frequently lower. Transfers can be higher or lower.
Transfer partners	No native transfer partners; cash may convert to Capital One miles ($1 = 100 miles) if linked to miles-earning Cap One card	Membership Rewards program (not card-unique; ratios change). Most airlines 1:1; commonly cited exceptions include Aeromexico 1:1.6, JetBlue 250:200, Hilton 1:2, Marriott 1:1, Choice 1:1, LHW 4:1. Re-check membershiprewards.com. Typical minimum 1,000 points. One-way. No expiration while the account remains open / program rules are met.

Credit & Eligibility

Metric	Spark Cash Plus	The Business Platinum Card® from American Express
Personal guarantee	Required in practice (issuer-typical for Cap One business cards; not quoted on product page)	Required in substance. CMA: “The Basic Card Member and the Company remain jointly and severally liable for all Charges.” Not a no-PG product.
Credit check	Hard pull on submit; pre-approval advertised as no impact to personal credit	Marketed “Know if you're approved with no personal credit score impact.” Secondary: decision often before a hard pull; hard personal inquiry commonly reported if the card is accepted. Business bureau review may occur when an EIN is used.
Employee cards	Free; spend limits, lock/unlock, account manager role; primary remains liable	Up to 99 additional. Platinum AU $400 with fuller travel benefits (lounge, hotel status, GE/PreCheck commonly reported as individual). Many statement credits remain account-pooled. Expense cards $0 without the full perk stack. Spend limits, alerts, freeze.
Product type	Hybrid charge card / NPSL business card (designed pay-in-full; Pay Over Time optional)	Charge card with No Preset Spending Limit plus optional Pay Over Time (hybrid charge / limited-revolve)

Pros & Cons

Spark Cash Plus

Pros

• Uncapped 2% cash back on all net purchases
• NPSL capacity plus free employee and virtual cards
• $150 annual fee refunded at $150,000 net spend by anniversary
• Large year-1 bonuses — $2,000 at $30k/3 mo plus $2,000 per $500k spent
• $0 foreign transaction fee; 5% on Capital One Business Travel hotels/VR/cars

Cons

• $150 fee is real if spend stays below $150k/year
• Pay-in-full design — 2.99% late fee and Pay Over Time interest if you carry
• Bonus hurdles favor very high spenders ($30k/3 mo, $500k increments)
• No 0% intro APR and no balance transfers
• Bonus often blocked for existing/previous Capital One Business cardholders

The Business Platinum Card® from American Express

Pros

• 5X on Amex Travel flights / prepaid hotels / prepaid STRs, transferable MR, and 35% Pay-with-Points airline rebate
• 2X on defined U.S. construction, electronics/software/cloud, shipping, and $5k+ tickets up to $2M
• Global Lounge Collection plus $600 hotel credit and FHR/Hotel Collection access; $0 FTF; NPSL
• Business credit stack (Dell up to $1,150, Indeed $360, Adobe $250, wireless $120, ChatGPT Business $300) if those vendors are already in use
• CLEAR+, Global Entry/PreCheck, hotel elite status, and cell-phone protection on a charge card

Cons

• $895 primary fee and $400 perk-bearing employee cards
• 1X on most everyday spend; 5X does not apply to flights booked direct with airlines
• Credits are fragmented, enrollment-gated, and easy to miss; marketing “$4,000+ value” assumes utilization the business may not have
• Pay-in-full late fee can be 2.99% of past-due PIF; POT APR is high if used as working capital
• Personal / joint-and-several liability; welcome bonus is personalized (“as high as”) and generally once per this product

Verdict

Spark Cash Plus

Capital One Spark Cash Plus is the go-to for businesses with serious spend who can pay in full. Uncapped 2%, NPSL flexibility, free employee/virtual cards, and a refundable $150 fee at $150k make it a premium flat-rate engine — especially with the live $2,000 welcome bonus and limited $500 travel credit (through Sep 7, 2026). Poor fit for 0% financing seekers, lounge hunters, or businesses under $150k annual card spend.

The Business Platinum Card® from American Express

Business Platinum is the lounge-and-credits SKU — not consumer Platinum (different credits, broader direct-airline 5X) and not Business Gold (lower fee, auto-4X ads/restaurants/gas). It pays when portal travel, 2X categories, and enrollment credits are real spend you already have. Unused credits make $895 a net loss versus Ink Preferred or a 2% cash card. Poor daily driver for flat cash back, 0% capital, no-PG underwriting, or flights ticketed direct with airlines.