Co-brand partnership decision system
8 rules to test whether a co-brand may create or destroy value for the issuer — covering deal economics, product design, and contract structure.
Read the framework ↓* Spend × (interchange − rewards) + expected fee collected. Before partner sharing and other costs; excludes interest income and attrition. This is not full economic payback.
Deal parameters
Diagnostic results
What this is
A co-brand credit card partnership is not a product launch. It is a multi-party contract that binds an issuer, a partner brand, and a network into a shared P&L — with misaligned incentives baked in from day one. The partner wants acquisition revenue and customer data. The issuer wants incremental volume and NII. When the deal is designed poorly, the issuer ends up running a high-cost rewards program that cannibalizes its own premium cards and surrenders data rights at contract expiry.
This tool screens deal economics, product design and contract terms before negotiation. A favourable screen is a reason to build a complete cohort business case; it does not establish profitability.
Three conditions for value creation
- Deal economics are viable — reward cost stays sustainably below interchange yield; revenue sharing terms leave adequate issuer margin.
- CVP is specific and differentiated — the card serves a defined segment around a defined behavior, not assembled as a generic rewards product.
- Contract protects the issuer's asset — term and data rights ensure the issuer can recover its investment and leverage the cardholder relationship over time.
Three-party value exchange
| Party | Asset | Objective |
|---|---|---|
| Issuer | Capital, credit underwriting, infrastructure | Incremental spend, NII, portfolio growth |
| Partner brand | Traffic, brand equity, loyalty members | Revenue stream, CLV uplift, customer data |
| Network | Global acceptance, scheme benefits | Spend volume, scheme fees |
Six revenue models
| Model | Cost exposure to verify | Partner upside |
|---|---|---|
| Bounty / CPA | Acquisition payout | Low |
| Points Purchase | Point cost / obligations | Medium |
| Interchange Share | Interchange base | Medium |
| Revenue Share | Defined revenue base | High |
| Profit Share | Defined profit / cost base | Variable |
| Hybrid | Combined payments | Variable |
The 8 diagnostic rules
Three layers: deal economics (Rules 1–3, 6), product design (Rules 4–5), contract structure (Rules 7–8). The most common failure mode is a structurally sound economic model built on a weak CVP, or a strong CVP attached to a contract that transfers long-term value to the partner.
| # | Rule | Tests |
|---|---|---|
| 1 | Reachable target audience | Is the addressable audience large enough? |
| 2 | Reward Cost vs. Interchange | Does interchange cover the modelled reward cost? |
| 3 | Sharing base & retained contribution | Is contribution positive after the contract-defined payout? |
| 4 | CVP Clarity | Can the product avoid competing on reward rate alone? |
| 5 | Partner spend concentration | How concentrated is spending in the partner use case? |
| 6 | Reward-adjusted acquisition coverage | Can the modelled inflow cover acquisition cost before other costs? |
| 7 | Contract Term & Data Rights | Does the issuer own the cardholder relationship? |
| 8 | Revolving Rate Adequacy | How dependent is the business case on interest income? |
How to use
Set the partner profile, deal economics, product design and contract terms. For a sharing model, reconcile the contract base and recurring contribution first; blank estimates remain unverified. Review flagged assumptions before committing.
Constructed comparison: reward-cost pressure
Use the reward-cost pressure preset: 1M members × 10% assumed fit and reach = 100K prospects. Annual spend is $500 per month × 12. Relative to the clearer-economics case, rewards rise from 0.5% to 1.25% and revolving falls from 30% to 10%; the other inputs stay fixed.
| Rule | Status | Detail |
|---|---|---|
| R1 — Reachable target audience | ✓ Pass | 100K prospects above the 75K demonstration cutoff |
| R2 — Reward Cost vs. Interchange | △ Watch | 25 bps spread — thin but positive |
| R3 — Sharing base & retained contribution | ✓ Pass | Points purchase — no revenue share |
| R4 — CVP Clarity | ✓ Pass | Score 4 — one-sentence CVP |
| R5 — Partner spend concentration | ✓ Pass | 25% partner-channel spend |
| R6 — Reward-adjusted acquisition coverage | ✓ Pass | 9.6 months before other costs: $60 ÷ $75 × 12 |
| R7 — Contract Term & Data Rights | ✓ Pass | 6-year assumption + reported full data rights |
| R8 — Revolving Rate Adequacy | △ Watch | 10% revolving — assumed income mix |
Resolve open assumptions: R2 and R8 warn. Annual inflow after rewards is $75 ($6,000 × 0.25% + $60 expected fees), covering $60 acquisition cost in 9.6 months before other costs. The comparison case covers it in 6.0 months. Test collected fees, other costs and cohort survival before a commitment.
What this demonstrates
The screen separates deal economics, product use and contract rights. Each flag identifies an assumption to investigate. Passing these checks does not establish full profitability, incremental demand or adequate legal protection.
When the conclusion changes
Use the same active-card population and annual period for spend, rewards, fees and acquisition cost. Enter expected fees after waivers; separate fees, spending and credit balances in the full business case.
Before signing, assign who can use which data, decide credit, contact declined applicants and manage the customer after expiry. Include an intermediary only when it participates in the actual deal.
How these assumptions were set
Scenario construction
Annual spend is $500 per month × 12 = $6,000. The first comparison case earns $60 after rewards plus $60 in fees: $120 before other costs. Raising rewards from 0.5% to 1.25% leaves $75 instead. The 30% and 10% revolving assumptions contrast income mixes; neither is a population estimate.
Why these bands
Zero recurring contribution and nonpositive coverage are arithmetic boundaries. The 75K audience, 30 bps reward buffer, 15% mix and 24-month coverage bands are screening assumptions. Three/five-year term bands distinguish short and longer investment windows; actual acquisition costs and rights determine an acceptable contract.
Test the sensitivity
Holding $60 acquisition cost fixed, annual inflow of $120 versus $75 changes coverage from 6.0 to 9.6 months. In the sharing case, 30% of a $120 revenue base pays $36 against $30 pre-sharing contribution, leaving −$6. Change the base or cost assumptions before interpreting the share percentage.