multiflow vs. Affirm

Affirm is a consumer-financing provider. At checkout, a customer chooses Affirm, Affirm evaluates them with a soft credit pull, they get an installment plan (3–36 months depending on order size and approval), and Affirm pays the merchant upfront net of fees. Merchant is done — no consumer credit risk, no collections exposure.

multiflow is merchant-side orchestration above the card acquirer. Different stack. Operators commonly run both: Affirm at checkout for AOV lift on high-ticket SKUs, multiflow above the card acquirer for portfolio routing.

Affirm's merchant fee is typically 5.99% + $0.30 on pay-in-4 and goes up with longer terms. That is higher than Klarna (~3.29%) and substantially higher than cards because Affirm is underwriting and funding longer-duration consumer credit. It pays off in high-AOV categories — fitness equipment, furniture, electronics, cosmetic surgery, education — where the AOV lift substantially exceeds fee delta.

multiflow is 5.5–7.5% all-in for the card side. Running both: finance sees a blended rate. Affirm fees land on Affirm-routed orders; multiflow fees land on card/wallet orders.

Affirm's merchant approval leans conservative. Regulated verticals are often declined: supplements, CBD, adult products, firearms, most nutra frames. Affirm's compliance team applies stricter product-category rules than most card acquirers because they are extending consumer credit — a regulatory risk Affirm carries.

If Affirm declined your vertical, multiflow can still approve card processing through an acquirer with different appetite. Affirm's decline is not multiflow's decline.

Affirm integrates per merchant. A 4-brand portfolio can run one Affirm merchant account spanning all brands (consumer receives branded communications per transaction but the merchant-of-record is one entity) or four separate Affirm merchant accounts (four underwriting cycles).

multiflow orchestrates the card/wallet side above the acquirer. Affirm stays at checkout on the sites where it makes sense (high-AOV sub-brands). Sub-brands where Affirm would not pay off (low-AOV subscription SKUs) skip Affirm entirely and route through cards.

Affirm does not freeze card processing — it is not the card acquirer. What Affirm can do: pause BNPL acceptance on your account if dispute or fraud ratios climb above their thresholds. That removes the conversion lift but leaves card checkout intact.

Card acquirer freezes (Stripe, Braintree, Square) are the threat multiflow isolates. A freeze on the acquirer layer halts primary checkout. multiflow splits that risk per sub-brand so one brand's issue does not halt the portfolio.

Affirm settles on its own schedule with its own CSV export. Card acquirer settles on its schedule. For a single-brand operator, that is two reconciliation files a month. For a multi-brand operator, it is 2×N where N is the brand count.

multiflow consolidates the card side into one brand-tagged ledger. Affirm stays separate but predictable (one file per Affirm merchant account regardless of brand count). The finance pain we solve is the N-multiplier on the card side, not the constant factor on Affirm.