Head-to-Head

Spark 1.5% Cash Select

No-annual-fee 1.5% flat cash back with 0% intro APR and a modest welcome bonus

VS

Blue Business℠ Plus Credit Card

No-annual-fee Membership Rewards earner: 2X on the first $50,000 of eligible purchases per calendar year (then 1X), plus a 12-month 0% intro APR on purchases

Annual Fee
$0
$0 (CMA: Annual Fee None)
Base Earn
Unlimited 1.5% cash back on every pur...
2 Membership Rewards points per $1 on...
Intro APR
0% for 9 months, then 16.74%–26.74% v...
0% intro APR on purchases for 12 mont...
Rating
8.3/10
8.5/10

Costs & Pricing

MetricSpark 1.5% Cash SelectBlue Business℠ Plus Credit Card
Annual fee$0$0 (CMA: Annual Fee None)
Employee card fee$0$0 (CMA: Annual Fee for Additional Cards: None)
Purchase APR16.74%–26.74% variable after intro (based on creditworthiness)Variable Prime + 9.99% to Prime + 21.74% (marketing 16.74%–28.49% as of late Aug 2026 at Prime 6.75%). Placement by creditworthiness and other factors at opening. Cap 29.99%. CMA formula wins over landing-page vintage ranges.
Intro APR (purchases)0% for 9 months, then 16.74%–26.74% variable0% intro APR on purchases for 12 months from account opening, then the variable purchase APR
Foreign transaction fee$02.7% of each transaction after conversion to U.S. dollars (via AE Exposure Management Ltd.)
Late payment feeNot disclosed on public product page (aggregators: up to $39; cash-back hub footnote mentions 2.99% — unresolved)Up to $39; $39 if Minimum Payment Due is not received by due date, not to exceed the Minimum Payment Due

Rewards & Value

MetricSpark 1.5% Cash SelectBlue Business℠ Plus Credit Card
Base earn rateUnlimited 1.5% cash back on every purchase (no category restrictions)2 Membership Rewards points per $1 on the first $50,000 eligible purchases per calendar year, then 1X. Official copy: no category restrictions. Cap resets each calendar year, not cardmember anniversary.
Welcome bonus$750 cash after $6,000 purchases in first 3 monthsStandard public offer (Amex compare and partner pages, late Aug–early Sep 2026): 15,000 Membership Rewards points after $3,000 eligible purchases in the first 3 months. Historical typical public offer has sat at 15k/$3k/3 mo for years.
Redemption valueFace-value cash (statement credit or check); any amount; does not expire while account is openIssuer examples for 10,000 points: $60 toward eligible Card Charges (~0.6¢); $100 on AmexTravel.com flights (~1.0¢); $70 at Amazon.com (~0.7¢); up to $100 toward select gift cards. Transfer value is partner- and award-dependent. Disclose cash/statement at 0.6¢ and AmexTravel flights at 1.0¢; do not assume transfer uplift unless the user picks a partner.
Transfer partnersCash 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).Membership Rewards program (not card-unique; lists move). Commonly 16 airline + 3–4 hotel partners as of mid/late 2026. Secondary catalog compilations: most airlines 1:1; Aeromexico 1:1.6; Cathay 5:4; Emirates 5:4; JetBlue 250:200 or 1:0.8; Hilton 1:2; Marriott 1:1; Choice 1:1; Leading Hotels of the World reported 4:1 after July 2026. Etihad Guest transfers ended 30 June 2026. Re-check the logged-in MR transfer page. Typical minimum 1,000 points (JetBlue lower). Transfers generally no fee. Points do not expire while the Rewards Account remains open and in good standing.

Credit & Eligibility

MetricSpark 1.5% Cash SelectBlue Business℠ Plus Credit Card
Personal guaranteeNot quoted on product page; market practice = required for Capital One small-business revolving cardsYes. CMA: Joint and Several Liability — both the Basic Card Member and the Company are each individually responsible for the Account. We may seek payment from either or both.
Credit checkHard pull on apply (commonly all three bureaus). Pre-approval advertised as no impact to personal score.Business credit may be impacted on submit; personal credit not impacted to receive a decision; personal credit may be impacted if the applicant accepts the card. Soft-then-hard pattern. Whose file: the applying Basic Card Member.
Employee cardsFree; custom spend limits; card lock; account-manager role (primary remains liable)$0. Benefits dashboard copy: add up to 99 Employee Blue Business Plus Cards. Owner earns MR on employee eligible spend; alerts and summary reports. Owner/Company remain liable. Spend controls via alerts/Account Manager — not a Ramp-style native policy engine.
Product typeRevolving business credit card (fixed credit line)Revolving business credit card with a stated Credit Limit plus Expanded Buying Power (excess due in full with the minimum payment). Not a charge card and not a fintech spend-management card.

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

Blue Business℠ Plus Credit Card

Pros

  • $0 annual fee and $0 employee-card fees
  • 2X Membership Rewards on the first $50,000 eligible purchases each calendar year with no category tracking
  • AmexTravel.com 2X that does not consume the $50k cap
  • 0% intro APR on purchases for 12 months
  • Points sit in Membership Rewards and can transfer to airline/hotel partners; purchase protection and extended warranty listed on the official benefits block

Cons

  • 2X layer caps at $50,000 per calendar year, then 1X
  • 2.7% foreign transaction fee
  • Public welcome bonus is modest versus premium Amex business cards (15k / $3k / 3 mo on compare pages)
  • Joint-and-several personal liability
  • No lounge, GE/TSA, trip-cancellation, or cell-phone benefits on the official list; post-intro APR band is high (16.74%–28.49% variable)

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.

Blue Business℠ Plus Credit Card

This is the Membership Rewards twin of Blue Business Cash — same chassis, same $50k cap, same 0% intro, not cash back and not Business Gold. Confirm the live apply-flow welcome (15k standard vs targeted 25k–75k). Poor daily driver for uncapped high spend, foreign spend, or anyone who will revolve after the intro period.