Costs & Pricing

Metric	Spark 1.5% Cash Select	Marriott Bonvoy Business® American Express® Card
Annual fee	$0	$125 (no first-year waiver published)
Employee card fee	$0	$0; up to 99 Employee Cards
Purchase APR	16.74%–26.74% variable after intro (based on creditworthiness)	Prime + 12.74% to Prime + 21.74% (marketing 19.49%–28.49% variable at Prime 6.75% as of 1–2 Sep 2026). Placement by creditworthiness at opening. No intro APR.
Intro APR (purchases)	0% for 9 months, then 16.74%–26.74% variable	Not offered
Foreign transaction fee	$0	$0
Late payment fee	Not disclosed on public product page (aggregators: up to $39; cash-back hub footnote mentions 2.99% — unresolved)	Up to $39; will not exceed Minimum Payment Due

Rewards & Value

Metric	Spark 1.5% Cash Select	Marriott Bonvoy Business® American Express® Card
Base earn rate	Unlimited 1.5% cash back on every purchase (no category restrictions)	2 Marriott Bonvoy points per $1 on other eligible purchases (no published cap). Card-side points only — Marriott member-stay points are a program overlay, not a card rate.
Welcome bonus	$750 cash after $6,000 purchases in first 3 months	Up to 125,000 Bonvoy bonus points: 75,000 after $6,000 eligible purchases + 50,000 after an additional $3,000 ($9,000 total) within the first 6 months of Card Membership (live public offer, 3 Sep 2026). Rotates — 3+2 Free Night Awards have appeared in other cycles. Offer end date not printed on the Business page.
Redemption value	Face-value cash (statement credit or check); any amount; does not expire while account is open	Issuer does not publish a cent value. Do not invent one. Industry write-ups often use ~0.6–0.9¢ on paid-night replacement; airline transfers often lower. Do not assume 1¢.
Transfer partners	Cash itself does not transfer. If you also hold a Capital One miles card, cash can convert at 1¢ = 1 mile (widely documented; not on the Select product page).	Marriott Bonvoy airline partners at ~3:1 (not Membership Rewards). Not transferable to Amex MR.

Credit & Eligibility

Metric	Spark 1.5% Cash Select	Marriott Bonvoy Business® American Express® Card
Personal guarantee	Not quoted on product page; market practice = required for Capital One small-business revolving cards	Required in substance. CMA: Basic Cardmember and Company jointly and severally liable for all charges, including Employee Card use.
Credit check	Hard pull on apply (commonly all three bureaus). Pre-approval advertised as no impact to personal score.	No personal-score impact to learn if approved. Personal score may be impacted if approved and the Card is accepted. Business credit may be impacted on submit.
Employee cards	Free; custom spend limits; card lock; account-manager role (primary remains liable)	Up to 99 at $0 AF. Spend limits, merchant-type limits, real-time alerts, freeze/unfreeze, account graphs. Liability remains on Basic Cardmember + Company.
Product type	Revolving business credit card (fixed credit line)	Revolving business credit card (not a charge card; not a spend-management / net-terms product)

Pros & Cons

Spark 1.5% Cash Select

Pros

• $0 annual fee; unlimited 1.5% cash back with no category tracking
• Live $750 / $6,000 / 3-month welcome bonus
• 9-month 0% intro APR on purchases
• $0 foreign-transaction fee; free employee cards that earn the same rate
• Cash back never expires while the account is open; redeem any amount

Cons

• 1.5% trails 2% flats and category-heavy Ink/Amex products at scale
• 5% travel only inside Capital One Business Travel; no lounge/GE credits
• Balance transfers not available
• Revolving Spark cards commonly report to personal credit
• Excellent-credit bar; full Schumer (late fee, penalty APR) not on the public product page

Marriott Bonvoy Business® American Express® Card

Pros

• $125 fee with an automatic annual Free Night (≤35,000 points) that can exceed the fee if redeemed against a high cash rate
• Complimentary Gold Elite + 15 ENCs without 25 paid nights
• 4X on four real small-business categories (worldwide restaurants, U.S. gas, U.S. wireless, U.S. shipping) with no published cap
• Up to 99 employee cards at $0 with limits and alerts; $0 FTF
• Apply-to-decision path that does not hit personal credit unless the Card is accepted

Cons

• $125 fee with no statement-credit offset; 35k Free Night cap plus dynamic pricing and resort fees
• Points are Marriott-locked; airline transfers are 3:1
• Purchase APR 19.49%–28.49% variable and no 0% intro — a poor revolver
• Personal / joint-and-several liability
• No lounge access, no Global Entry/TSA credit, thin trip-insurance stack vs premium Amex business cards

Verdict

Spark 1.5% Cash Select

Spark Cash Select is the clean no-fee 1.5% Capital One option — plus a $750 bonus and 9 months of 0% on purchases. It is not Spark Cash Plus (NPSL, $150) and not Classic (fair credit, 1%). Best as a simple daily driver or year-1 0% tool; once annual spend is high enough that a 2% flat or category card wins, move the volume.

Marriott Bonvoy Business® American Express® Card

This is the live U.S. Marriott business cobrand — not Bevy/Brilliant, not Chase Marriott Business (closed to new applicants), and not the Canadian $150 / 5X/3X/2X card. It pays when the firm actually sleeps Marriott and uses the Free Night. A hotel-agnostic shopper should use Ink Preferred, Business Gold, or a $0 2% cash card instead. Do not put Bonvoy member-stay points in the card earn column.