Costs & Pricing

Metric	Blue Business Cash® Card	Engine X
Annual fee	$0 (no annual fee, ever)	$0
Employee card fee	$0 (up to 99 Employee Cards)	$0; unlimited physical and virtual cards
Purchase APR	16.74%–28.49% variable (Prime + 9.99% to +21.74%; cap 29.99%)	N/A — charge card. No purchase interest if paid by due date. No published purchase APR range. Marketing “0%” means no annual fee plus charge-card float until the due date, not an intro APR.
Intro APR (purchases)	0% for 12 months from account opening, then variable purchase APR	Not offered (not a revolving product)
Foreign transaction fee	2.7% of each transaction after conversion to USD	$0 (International Transaction Fee: $0 / None). Ordinary Visa FX conversion still applies (rate not separately itemized).
Late payment fee	Up to $39 (cannot exceed Minimum Payment Due)	$40 per late payment

Rewards & Value

Metric	Blue Business Cash® Card	Engine X
Base earn rate	2% cash back on first $50,000 eligible purchases per calendar year; 1% thereafter	1.5% back in Engine points on Qualifying Card Purchases (everyday / off-Engine spend, including flights even if booked on Engine)
Welcome bonus	$250 statement credit after $3,000 eligible purchases in first 3 months (standard public offer)	20,000 Engine points after the company activates an Engine X card and completes $2,000 in Qualifying Off-Platform Purchases within 30 days of first Card activation. Off-platform = card spend not booked through Engine.com. Engine travel bookings do not count. Employee/additional-card off-platform spend does count (company-level). First-time Engine X customer; one bonus per company. Offer ends 11:59 p.m. ET, 31 December 2026 (incentive terms updated 1 Jun 2026).
Redemption value	Automatic statement credit — 1¢ per 1% of eligible spend (2% = 2¢ per $1 under cap)	Official cents-per-point not disclosed. Points have no cash value and are redeemable only through the program. Checkout shows a point-to-dollar value before confirm. Secondary (TPG, 20 Aug 2026): statement credit described at ~50% of booking value — unofficial; do not hard-code 1¢ or 0.5¢ as issuer fact. Disclose user-selectable factor: 1.0× if redeemed for Engine bookings; 0.5× if using TPG’s statement-credit haircut.
Transfer partners	None — cash back only, not a points bank	Not offered (no Chase/Amex/airline transfers)

Credit & Eligibility

Metric	Blue Business Cash® Card	Engine X
Personal guarantee	Required — joint and several liability of Basic Card Member and Company (CMA)	Official apply page: “We also do not require personal guarantees.” Program terms: company is the liable party. Owner KYC still collected. Confirm no hidden guaranty in the Issuing Bank Terms accepted at offer.
Credit check	No personal-score impact to learn if approved; may impact personal credit if applicant accepts the card	Official: no hard pull, will not impact personal credit score. Soft-pull vs none-at-all on a bureau file is not separately named. Last-4 SSN is for identity verification (CIP), not described as a full credit pull.
Employee cards	Up to 99 Employee Cards, $0 AF; spend limits and merchant-type alerts	Unlimited physical + instant virtual, including 1099 / temporary workers. Spend controls by employee, project, expense type, category, merchant, transaction. Physical cards ~8 business days. Company remains liable.
Product type	Revolving business credit card with stated credit limit and Expanded Buying Power	Business charge card + spend-management card (pay-in-full each cycle; assigned line of credit; no revolving APR). Not a consumer credit card. Sibling: Direct Bill (credit line limited to Engine hotel/flight/car bookings — not this card).

Pros & Cons

Blue Business Cash® Card

Pros

• $0 annual fee on primary and up to 99 Employee Cards
• 2% automatic cash back on first $50,000 calendar-year eligible spend
• 12-month 0% intro APR on purchases
• Expanded Buying Power — no overlimit fee; rewards earn above limit if approved
• Purchase Protection and Extended Warranty included

Cons

• 2% earn ends at $50k; incremental spend drops to 1%
• 2.7% foreign transaction fee
• Joint-and-several personal liability of Basic Card Member
• Modest standard welcome bonus ($250 / $3k / 3 months) vs many competitors
• Over-limit balances due in full; missed Closing Date can trigger Penalty APR on entire balance

Engine X

Pros

• $0 annual fee and $0 employee/virtual-card fees
• 6% (scaling to 10%) Engine points on Engine hotel and rental-car bookings — unusual on-platform travel earn at $0 fee
• No personal guarantee and no hard personal credit pull (official apply language)
• Charge card + Autopay + spend controls + unlimited cards for employees and 1099s; travel booking, policy, and folios in one dashboard
• $0 foreign-transaction fee in the fee table

Cons

• Elevated earn does not apply to flights or off-Engine hotels; marketing “up to 10% on travel” is broader than the legal category
• Pay-in-full charge card; $40 late / $40 returned-payment fees; no revolver
• Points have no cash value; official ¢/point not published; statement-credit value may haircut vs booking (secondary)
• Sole proprietors ineligible; U.S. entity + EIN required
• No published lounge, TSA/Global Entry, or card-insurance benefits guide; product is new (Mar 2026) so limit ranges and servicing quality are thinly documented

Verdict

Blue Business Cash® Card

The Blue Business Cash Card is Amex's no-fee workhorse for modest spenders — 2% automatic cash back up to $50k, then 1%, paired with a 12-month 0% intro APR and Expanded Buying Power. It beats uncapped 1.5% cards on the first $50k but loses incremental dollars to Spark Cash Plus or Ink Unlimited above that cap. Best for domestic sole props and small firms who won't chase category bonuses or transfer partners.

Engine X

Engine X is a TMC + charge card, not Direct Bill and not Ramp/Brex. Most SMBs stay Silver (6% / 1.5%). Skip it if travel will not move onto Engine, if you need revolving credit or transferable miles, or if you are a sole prop. Confirm the live 20,000-point offer (through 31 Dec 2026) requires $2,000 off-Engine spend within 30 days of first card activation.