Fee-on-top vs revenue share: how should we price embedded payments?
Price embedded payments on two axes: the rate structure merchants see, and who bears the card cost. Flat blended pricing fits consumer verticals below roughly $10M GMV; interchange-plus becomes compelling above $20M and decisive above $50M, where flat-rate pricing leaves 30–60 bps on the table for most card mixes. Separately, decide whether to surcharge — a fee-on-top, credit cards only, capped at cost — or absorb processing into your sell rate and earn the buy-sell spread. Surcharging suits B2B verticals with minimal conversion impact; in consumer checkouts the conversion hit often exceeds the savings.
Reviewed by Jane Podbelskaya · last reviewed 2026-07-28 · how we produce answers
Two decisions, not one
“Fee-on-top vs revenue share” bundles two separate pricing decisions. The first is the rate structure your merchants see: a flat blended rate, or interchange-plus pass-through. The second is who ultimately bears the card cost: the merchant’s end customer (a surcharge — the fee-on-top), or the merchant, via a sell rate you set above your buy rate — the spread that is your payment revenue. The right combination depends on GMV, card mix, and average ticket size, and the source frameworks live in the payment economics chapter and the optimization chapter of the embedded payments guide.
Decision 1: flat/blended vs interchange-plus
A flat blended rate (the published 2.9% + $0.30 online or 2.6% + $0.15 in-person style of pricing) applies one rate to every transaction; the provider absorbs interchange variance, winning on cheap transactions (regulated debit, card-present) and compressing on expensive ones (commercial cards, card-not-present). Interchange-plus (IC+) passes actual interchange through and charges a fixed, auditable markup; IC++ separates network fees out as well. Tiered “qualified/mid-qualified/non-qualified” pricing is opaque and hard to audit — avoid it for any growing platform with B2B card mix.
The same $500 consumer-credit, card-not-present transaction across the models (interchange $9.10, network fees $0.72, platform buy rate at IC + 0.15%):
| Pricing model | Merchant pays | Platform spread | Notes |
|---|---|---|---|
| Flat-rate (2.9% + $0.30) | $14.80 | ~$5.10 | Platform absorbs cost variance; wins on debit, loses on commercial |
| Tiered (qual/mid/non-qual) | ~$12.00–$17.50 | Unpredictable | Opaque buckets; hard to audit |
| Interchange-plus (IC + 75 bps + $0.10) | IC + markup | ~60 bps + $0.10 | Transparent; standard for B2B platforms |
| IC++ (IC + network fees + markup) | All layers itemized | ~65 bps + $0.10 | Most transparent; preferred by sophisticated merchants at $100M+ GMV |
The threshold logic: below roughly $10M GMV, flat-rate simplicity outweighs the cost variance. Between $10M and $50M, run the model on your card mix — IC+ becomes economically compelling above $20M. Above $50M it is decisive: flat-rate is leaving 30–60 bps on the table for most card mixes.
Decision 2: surcharge (fee-on-top) or absorb into the spread
Surcharging adds a line item to the end customer’s bill to recover credit-card processing cost. It is legal in most US states and across all Canadian provinces since 2022, with network rules: pre-notification, clear disclosure at checkout, credit cards only (no debit or prepaid), and a cap at actual processing cost — not to exceed 3% (Visa) or 4% (Mastercard). Where the surcharge passes through to the end customer, the merchant’s net card cost approaches zero, which makes acceptance an easy sell — but it can reduce card conversion, meaningfully so in consumer-facing checkouts.
Absorbing the cost into your sell rate means the merchant pays one rate, and your revenue is the spread between that sell rate and your all-in buy rate. Illustrative Charge Forward ranges as of June 2026 show how the spread widens with scale:
| Annual GMV | Typical buy rate (all-in) | Typical sell rate | Spread | Annual payment revenue |
|---|---|---|---|---|
| $25M | 2.15% | 2.90% | 75 bps | $187,500 |
| $100M | 2.05% | 2.85% | 80 bps | $800,000 |
| $500M | 1.95% | 2.80% | 85 bps | $4,250,000 |
| $1B | 1.85% | 2.75% | 90 bps | $9,000,000 |
The two structures can coexist: many B2B platforms surcharge credit while routing large invoices to ACH ($0.25–$0.75 flat per transaction) and earning spread on the remainder.
[Review: Jane] If “revenue share” here also means the residual split a platform earns from its processor under a referral model: the source chapters establish that referral is the lowest-capture model and that moving from referral/light to full PFaaS is a 4–5x revenue uplift on the same volume, but they do not give typical platform/processor percentage splits for referral revenue-share agreements. Flagging rather than inventing a split range.
[Review: Jane] The chapters do not contain head-to-head merchant adoption or churn data comparing an explicit fee-on-top presentation against an absorbed/blended rate at equal net cost. The surcharge conversion guidance above (minimal impact in B2B, meaningful erosion in consumer checkouts) is the closest covered comparison.
What fits which vertical and ticket size
Ticket size and card mix, more than preference, decide the structure. Fixed per-item fees ($0.10–$0.30) are 3.0% of a $10 restaurant tab, 0.06% of a $500 HVAC service call, and 0.002% of a $15,000 construction invoice.
| Vertical | Structure of volume | Pricing implication |
|---|---|---|
| Restaurant tech (QSR) | $8–$15 tickets; 60–75% card-present | Blended pricing works; minimizing the fixed per-item fee is worth more than rate improvements |
| Field services (HVAC, plumbing) | ~50/50 CP/CNP; mixed consumer and commercial | Spread on card volume; route large invoices to ACH; L2/L3 data on commercial cards |
| Property management | 85–95% CNP; $1,302 average rent payment | ACH-dominant: card cost ~$26 vs ~$0.50 ACH per rent payment; cards priced as a convenience premium |
| Fitness / wellness | 85–95% CNP recurring billing; 0.50%–0.86% chargeback rates | Price for risk; consumer checkout makes surcharging a poor fit |
| Construction / legal (B2B) | Commercial card mix can exceed 50%; invoices $25,000–$75,000 in construction | Surcharge credit with minimal conversion impact; ACH for large invoices; L2/L3 saves 20–60 bps on qualifying commercial volume |
The levers once the structure is set
Whatever structure you pick, three levers compound on top of it: reduce the buy rate (processor markup negotiation), improve interchange qualification (L2/L3 data, correct MCC, downgrade prevention), and raise the sell rate. The combined impact is regularly 25–50 effective basis points on a portfolio that has never been reviewed — a platform that cuts buy rate 15 bps, captures 25 bps of L2/L3 savings on a 20% commercial-card mix, and raises sell rate 15 bps improves economics 40+ bps without changing its payment stack. Sell-rate benchmarking in the optimization review finds most platforms priced 15–50 bps below the market ceiling for their vertical and size; targeted back-book repricing on existing cohorts is one of the seven take-rate levers in the UBS December 2025 framework. Every 10 bps is $100,000 per year at $100M GMV.
When fee-on-top is not worth it
Surcharging is the most common “quick win” that misfires. In consumer-facing transactions the conversion erosion can exceed the savings, it is barred on debit and prepaid cards entirely, and the maturity framework flags it as a Stage 3 (Margin Expansion) move — premature deployment at earlier stages is a frequent source of merchant churn. Run an A/B test on a meaningful cohort before rolling it out portfolio-wide, and in debit-heavy consumer verticals expect the absorbed-spread model to remain the workhorse.
Run your own numbers
The take-rate and unit economics calculator quantifies each lever against your card mix and ticket size, and the Stripe leakage diagnostic is the fast check if you are on flat-rate pricing today. Compare provider pricing structures in the payments vendor database. For the full frameworks, go up to the payment economics chapter and the optimization chapter; for adjacent decisions, see What is a good payments take rate for vertical SaaS? and When should a vertical SaaS company leave Stripe Connect?
FAQ
Can we surcharge debit cards?
No. Visa and Mastercard permit surcharging on credit cards only — debit and prepaid cards are excluded. Both networks require pre-notification and clear disclosure at checkout, and cap the surcharge at the actual processing cost (not to exceed 3% for Visa, 4% for Mastercard).
At what volume should we move from flat-rate to interchange-plus?
Below roughly $10M GMV the simplicity of flat-rate outweighs the cost variance. Between $10M and $50M, run the model — the answer depends heavily on card mix. Above $50M, interchange-plus is decisive: flat-rate is leaving 30–60 bps on the table for most card mixes.
Does the pending interchange settlement change our pricing plan?
As of mid-2026, the Visa/Mastercard merchant antitrust settlement announced in late 2025 includes an approximately 10-bps credit interchange reduction expected to land in late 2026 or early 2027, subject to court approval. Model it as a tailwind in 2027 forward plans, and decide in advance whether to pass it through to merchants or capture it in the spread.
Are take rates in vertical SaaS compressing?
No, per the evidence as of the May 2026 Rainforest benchmarking study: 60% of vertical SaaS platforms reported take-rate increases over the past two years, and only 1% reported decreases. Sell-rate benchmarking found most platforms price 15–50 bps below the market ceiling for their vertical and size.
Sources
- Visa US Interchange Reimbursement Fee schedule (effective October 18, 2025); Mastercard US Region Interchange Programs and Rates (effective April 11, 2025) (2025)
- Visa and Mastercard 8-K filings on the proposed merchant antitrust settlement (December 2025)
- Rainforest, 2026 Vertical SaaS Embedded Payments Benchmarking Study (Q1 2026 fielding) (May 2026)
- Charge Forward, Embedded Payments Guide — Payment Economics and Optimization chapters (June 2026)