Head-to-Head

Ink Business Unlimited® Credit Card

No-annual-fee flat 1.5% cash back with a 12-month 0% purchase intro APR

VS

Spark 1.5% Cash Select

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

Annual Fee
$0
$0
Base Earn
1.5% cash back (1.5 Ultimate Rewards ...
Unlimited 1.5% cash back on every pur...
Intro APR
0% fixed for first 12 months (lost if...
0% for 9 months, then 16.74%–26.74% v...
Rating
8.8/10
8.3/10

Costs & Pricing

MetricInk Business Unlimited® Credit CardSpark 1.5% Cash Select
Annual fee$0$0
Employee card fee$0$0
Purchase APR16.74%–24.74% variable (Prime + 9.99% to +17.99%; cap 29.99%)16.74%–26.74% variable after intro (based on creditworthiness)
Intro APR (purchases)0% fixed for first 12 months (lost if minimum payment missed)0% for 9 months, then 16.74%–26.74% variable
Foreign transaction fee3%$0
Late payment fee$40Not disclosed on public product page (aggregators: up to $39; cash-back hub footnote mentions 2.99% — unresolved)

Rewards & Value

MetricInk Business Unlimited® Credit CardSpark 1.5% Cash Select
Base earn rate1.5% cash back (1.5 Ultimate Rewards points per $1)Unlimited 1.5% cash back on every purchase (no category restrictions)
Welcome bonus$1,000 cash back after $8,000 in purchases within first 4 months (100,000 points; as of 9/3/2026)$750 cash after $6,000 purchases in first 3 months
Redemption value1¢/point for cash, gift cards, and program travel; Amazon Shop with Points 0.8¢/pointFace-value cash (statement credit or check); any amount; does not expire while account is open
Transfer partnersNot native on this card; points can be moved to another Ultimate Rewards account for transfer-partner access when paired with eligible cards (e.g., Ink Preferred)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).

Credit & Eligibility

MetricInk Business Unlimited® Credit CardSpark 1.5% Cash Select
Personal guaranteeRequired — joint and several liability of authorizing officer and businessNot quoted on product page; market practice = required for Capital One small-business revolving cards
Credit checkHard pull on authorizing officer's personal credit (SSN required)Hard pull on apply (commonly all three bureaus). Pre-approval advertised as no impact to personal score.
Employee cardsFree; number not capped in public copy; individual spend limits, lock/unlock, and alertsFree; custom spend limits; card lock; account-manager role (primary remains liable)
Product typeRevolving business credit cardRevolving business credit card (fixed credit line)

Pros & Cons

Ink Business Unlimited® Credit Card

Pros

  • $0 annual fee on primary and employee cards
  • Uncapped 1.5% on eligible purchases — simple flat-rate earn
  • 12-month 0% intro APR on purchases
  • Elevated $1,000 / $8,000 / 4-month welcome bonus (as of 9/3/2026); AU spend counts
  • Primary business-use rental CDW up to $60,000 on a no-fee card

Cons

  • 3% foreign-transaction fee
  • No native bonus categories — loses to 2% flats and Ink Cash/Preferred in bonus buckets
  • Personal guarantee + hard personal pull + unofficial 5/24 rule
  • Welcome bonus blocked if you ever held this or another $0-AF Chase business card
  • No balance-transfer intro APR; no cell-phone protection or premium travel credits

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

Verdict

Ink Business Unlimited® Credit Card

One of the strongest no-annual-fee business cards for flat-rate earn. The Ink Business Unlimited combines uncapped 1.5% cash back, a generous intro APR window, free employee cards, and a elevated welcome bonus — all without an annual fee. Best for domestic spenders who don't need category bonuses or premium travel perks. Poor fit for foreign spend, no-PG seekers, or businesses that would earn more with Ink Cash or Ink Preferred in their bonus categories.

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.