Credit Key is buy now, pay later for businesses: it underwrites a company through its owner, offers lines up to $50,000 and reports to Dun & Bradstreet. Affirm and Klarna are consumer services for personal purchases. A business buying equipment from a B2B supplier will generally see Credit Key, not Affirm or Klarna.
How they differ
| Credit Key | Affirm / Klarna | |
|---|---|---|
| Built for | Business purchases | Personal purchases |
| Applicant | Business owner or signatory | Individual consumer |
| Standard maximum | $50,000 | Set per consumer and purchase |
| Business net terms | Net 30 at 0% | Not a net-terms product |
| Reports to | Dun & Bradstreet | Consumer bureaus, varying by plan |
| Found at | B2B suppliers | Consumer retailers |
Can a business just use consumer BNPL?
Some owners do for small items, but it mixes personal and business credit, complicates bookkeeping and does nothing for the business credit file. Terms of consumer services may also restrict commercial use.
Need money in hand, not checkout credit?
Request a personal loan through our lender network. It is a separate service from Credit Key and the request is free.
Why directories lump them together
Review sites group every pay-later tool into one software category. That is why consumer apps show up when you search for Credit Key alternatives. For real substitutes, see the alternatives page.
At a B2B checkout
When you buy from a distributor as a business, you are asked for business details and offered net terms. That flow exists because B2B orders are larger, often tax-exempt, and paid from a business account. Consumer pay-later tools are not built around any of that.
For merchants choosing a provider
If you sell to both consumers and businesses, you may need one of each. A consumer option will decline or under-serve a contractor placing a $15,000 order; a B2B option will not suit a household buyer.
Common questions
Is Credit Key like Affirm?
In mechanics, yes: pay over time at checkout. In audience, no: Credit Key serves businesses.
Does Affirm offer business financing?
Affirm's core product is consumer lending. Check its site for any current business offering.
Sources
Checked November 12, 2026. We link to primary sources so you can verify each figure yourself.