Costs & Pricing

Metric	Spark 1.5% Cash Select	Capital One Venture X Business
Annual fee	$0	$395 (ongoing; no first-year waiver published)
Employee card fee	$0	$0 for employee cards. Optional lounge access for additional cardholders is $125/year per person (up to 4). Cards without lounge access stay free.
Purchase APR	16.74%–26.74% variable after intro (based on creditworthiness)	Marketing: 25.74% variable on the portion you elect to carry. Formal disclosure box does not print a purchase APR — it states the balance is due in full. No published Prime+ band.
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)	2.99% of the unpaid portion of the minimum payment. Because the minimum equals the New Balance, a missed due date is expensive.

Rewards & Value

Metric	Spark 1.5% Cash Select	Capital One Venture X Business
Base earn rate	Unlimited 1.5% cash back on every purchase (no category restrictions)	Unlimited 2 miles per $1 on net purchases (no published category cap)
Welcome bonus	$750 cash after $6,000 purchases in first 3 months	Standard public offer (product page + disclosure 31812, 2026-09-03): 150,000 bonus miles after $30,000 spend within 3 months of rewards-membership enrollment. Posted within two billing cycles. Marketed as equal to $1,500 in travel at the 1¢ portal rate.
Redemption value	Face-value cash (statement credit or check); any amount; does not expire while account is open	1¢ per mile for portal travel and Cover Your Travel Purchases (miles needed = dollars × 100). Issuer markets 10,000 anniversary miles as $100 toward travel. Cash via check/account credit and gift cards at rates that vary and can change — not automatic.
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).	Capital One miles program (disclosure: may be eligible). Official 2026 list — 1:1 airlines: Aeromexico Rewards, Air Canada Aeroplan, Avianca LifeMiles, British Airways Club, Cathay Pacific Asia Miles, Etihad Guest, Finnair Plus, Flying Blue (Air France-KLM), Qantas, Qatar Privilege Club, Singapore KrisFlyer, TAP Miles&Go, Turkish Miles&Smiles, Virgin Red. 2:1.5: Emirates Skywards, EVA Air, Japan Airlines. 5:3: JetBlue TrueBlue. Hotels: Choice Privileges 1:1, Wyndham Rewards 1:1, I Prefer 1:2, Accor Live Limitless 2:1. Miles do not expire while the account is open; may be forfeited if closed.

Credit & Eligibility

Metric	Spark 1.5% Cash Select	Capital One Venture X Business
Personal guarantee	Not quoted on product page; market practice = required for Capital One small-business revolving cards	Required in practice / exact clause not on the public product page. Capital One educational copy treats PGs as typical on business cards; secondary sources (Nav, Ramp) state Cap One business cards require a PG.
Credit check	Hard pull on apply (commonly all three bureaus). Pre-approval advertised as no impact to personal score.	Application collects SSN/ITIN, rent/mortgage, personal contact. Hard pull is the Cap One / industry norm; pre-approval tool is marketed as no-impact. Whose credit: authorizing signatory; beneficial owners/controllers also collected.
Employee cards	Free; custom spend limits; card lock; account-manager role (primary remains liable)	Free; public copy does not numerically cap count. Roles: authorized user vs account manager (more admin rights). Custom spend limits, real-time posting, lock/unlock. Primary remains liable. No complimentary lounge access for additional cardholders unless $125/year add-on (up to 4).
Product type	Revolving business credit card (fixed credit line)	Hybrid business charge card with no preset spending limit (NPSL). Official terms: all charges due in full; minimum payment equals New Balance. Marketing allows carrying a portion at 25.74% variable APR (Pay Over Time). Not a traditional revolving line.

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

Capital One Venture X Business

Pros

• Unlimited 2X miles with no category tracking, plus 5X/10X in Capital One Business Travel and 15+ transfer partners
• $300 portal credit + 10,000 anniversary miles offset most of the $395 fee if the credit is used (fee nets about −$5 at 1¢/mile before lounge value)
• NPSL purchasing power with Confirm Purchasing Power; $0 FTF
• Free employee and virtual cards; Accounts Payable included (no platform fee)
• Primary lounge stack (Cap One + Priority Pass) with two free PP guests — better PP guest policy than personal Venture X after Feb 2026

Cons

• $395 fee and a $300 credit that only works inside Capital One Business Travel
• Welcome spend hurdle is $30,000 in 3 months; prior Capital One Business customers may get $0 bonus
• Pay-in-full design; late fee is 2.99% of the unpaid New Balance
• Carry APR 25.74% if you use the residual-balance option — poor working-capital tool
• Portal-only hotel/air bonuses; insurance/cell-phone/rental-CDW details are network-dependent and not in a public benefits PDF

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.

Capital One Venture X Business

Venture X Business is the miles/lounge sibling of Spark Cash Plus — same NPSL charge-card chassis, not consumer Venture X and not Venture Business. Fee math works if the $300 portal credit is used; skip it if you will not book in Capital One Business Travel, cannot hit $30k/3 months, need 0% float, or want no-PG underwriting. Confirm the live welcome tile (150k standard vs 400k targeted) and the issued Visa vs Mastercard benefits guide.