Costs & Pricing

Metric	Engine X	Spark 1% Classic
Annual fee	$0	$0 (ongoing; no intro-year structure)
Employee card fee	$0; unlimited physical and virtual cards	$0 (free employee cards; no per-card fee published)
Purchase APR	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.	28.99% variable on the product page and pre-approval rates block (Sept. 3, 2026). Not published as a range; no Prime + margin table on the Classic page. Review sites still show 29.49%–30.74% — treat as stale vs issuer page.
Intro APR (purchases)	Not offered (not a revolving product)	Not offered
Foreign transaction fee	$0 (International Transaction Fee: $0 / None). Ordinary Visa FX conversion still applies (rate not separately itemized).	$0
Late payment fee	$40 per late payment	Not on the official Classic page. Bankrate (Dec 19, 2025): up to $39. Do not apply Cap One charge-card 2.99%-of-unpaid-minimum language to Classic.

Rewards & Value

Metric	Engine X	Spark 1% Classic
Base earn rate	1.5% back in Engine points on Qualifying Card Purchases (everyday / off-Engine spend, including flights even if booked on Engine)	Unlimited 1% cash back on every purchase. Marketing: no limits or category restrictions; no minimums. Rewards will not expire for the life of the account.
Welcome bonus	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).	None. Live public offer as of September 3, 2026: no cash bonus, no spend threshold. Historical typical offer: also none.
Redemption value	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.	Cash at face value on statement credit or check (1¢ per 1% dollar). Official FAQ: redeem for any amount / no minimums. Gift-card rates may vary. Do not assume portal 5% unless the user actually books hotels/cars in Capital One Business Travel. Do not assume World Elite travel credits or transferable miles.
Transfer partners	Not offered (no Chase/Amex/airline transfers)	None on this cash-back product. Official FAQ: cash rewards earned through spending on Spark Classic are not taxable (issuer still says consult a tax expert).

Credit & Eligibility

Metric	Engine X	Spark 1% Classic
Personal guarantee	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.	Not quoted on the Classic product page. Commonly reported as required; official Classic sentence missing. Secondary sources (NerdWallet, Ramp, WalletHub) treat Cap One small-business cards, including Classic, as PG required.
Credit check	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.	Pre-approval advertised as no impact to personal score. Submitted application treated by reviewers as a hard pull on personal credit (commonly all three bureaus). Official: application may be declined if you have a freeze with credit bureaus.
Employee cards	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.	Free; add with name, DOB, phone; option to issue plastic or not; custom spend and cash limits, reset mid-cycle. Number allowed not disclosed. Primary account / guarantor remains responsible (Classic page does not spell joint and several).
Product type	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).	Revolving business credit card (balance may be carried; interest applies). Not a charge card. Contrast siblings: Spark Cash Plus and Venture X Business are pay-in-full / NPSL charge cards.

Pros & Cons

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

Spark 1% Classic

Pros

• $0 annual fee with no year-2 surprise
• Explicitly underwritten for fair personal credit — rare in the Spark/Ink/Amex Business set
• Unlimited 1% + 5% Capital One Business Travel hotels/cars; rewards do not expire while the account is open
• $0 foreign-transaction fee on a fair-credit product
• Free employee cards with spend limits, virtual numbers, QBO/Excel export, year-end summaries, and $0 fraud-liability language covering employee cards

Cons

• 28.99% variable purchase APR and no intro 0% — carrying a balance is expensive
• No welcome bonus
• 1% base lags Spark Cash Select (1.5%) and Spark Cash (2%)
• Balance transfers not available
• Likely reports full activity to personal credit — utilization risk

Verdict

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.

Spark 1% Classic

Spark Classic is a credit-access card, not a rewards engine and not a 0% working-capital tool. Do not confuse it with Spark Cash Select (1.5%, $750 bonus, 9-month 0%) or Spark Cash Plus (2% NPSL charge card). Do not copy Venture X or World Elite Spark insurance onto this SKU until Classic’s own Guide to Benefits is confirmed. If you can qualify for Select or Ink Unlimited, those are better earners. If you cannot, Classic is a reasonable builder — only if you pay in full.