A customer promise with several financial consequences
Card rewards connect a customer’s spending choices to an issuer’s costs and a partner’s revenue. The customer values a future trip, purchase or cash redemption; the issuer estimates the cost of fulfilling that promise and hopes the relationship earns enough to support it. A program can therefore improve engagement while becoming more expensive to operate. Unredeemed points are neither cost-free funding nor proof of satisfied customers.
American Express’s 2025 Form 10-K describes estimating its Membership Rewards liability from expected redemption and fulfillment costs. Delta’s 2025 filing describes its separate commercial relationship selling miles to American Express. These dated examples illustrate different sides of a loyalty arrangement, not a single accounting method applicable to every program. [1][2]
Earn, redeem and estimate
The program must measure points earned, points redeemed, outstanding obligations and expected future redemption. Breakage refers to rewards expected not to be redeemed, subject to the applicable accounting and contractual framework. It is an estimate of behavior, not an invitation to make redemption difficult or a guarantee that outstanding points have no value.
Changes in the redemption mix can alter cost even when the number of points redeemed is unchanged. Travel, statement credits and merchandise may have different fulfillment economics. Partner pricing can also change. A program manager therefore needs both a quantity view and a unit-cost view, with enough detail to distinguish customer behavior from commercial renegotiation and accounting-estimate changes.
A hypothetical liability sensitivity
Assume a program has one billion outstanding points, expects 80% eventually to be redeemed and estimates an average fulfillment cost of 0.8 cent per redeemed point. A simplified expected cost is $6.4 million: one billion multiplied by 80% multiplied by $0.008. This is a conceptual calculation, not a statement of the accounting required for every program or any issuer’s reported liability.
If expected redemption rises to 90%, the simplified cost becomes $7.2 million. If the redemption rate remains 80% but unit cost rises to 0.9 cent, the result is also $7.2 million. Both produce an $800,000 increase through different mechanisms. A financial review should identify which assumption changed, why it changed and whether the change also affects future customer economics.
Profitability requires the whole card relationship
Rewards expense should be assessed alongside interchange or discount revenue, interest, fees, credit losses, acquisition cost and servicing. A customer who pays in full can generate spending revenue while producing little interest income. A revolver can generate interest but also require funding and absorb credit losses. Treating all rewards spending as interchangeable obscures those differences.
Promotional bonuses deserve separate cohort analysis. A large acquisition award can create an initial loss that is justified only if the customer remains active long enough and produces sufficient contribution. Measure the behavior of customers attracted by the offer, rather than applying the average economics of a mature portfolio. Customers may also optimize across cards, shifting spend when a promotion ends.
Controls around the estimate
Recommended controls reconcile the points ledger to customer accounts and the accounting records, including reversals, refunds, account closures and partner adjustments. A merchant refund should not leave the system with inconsistent cash, purchase and rewards records. Manual adjustments need documented authority and an audit trail because small unit values can accumulate across a large portfolio.
Back-test redemption assumptions by , tenure and program type. An aggregate redemption rate can hide a new cohort behaving differently from older customers. Track estimate revisions and distinguish changes supported by observed behavior from changes driven primarily by a target financial result. The analysis should also consider how program changes alter future redemption, rather than assuming historic behavior remains stable after the customer proposition changes.
Tradeoffs in program design
Richer rewards may increase spend and retention, but they can attract customers whose behavior is less profitable than expected. More redemption options can improve customer value while increasing fulfillment cost or operational complexity. Restricting options can reduce short-term expense and weaken trust or retention. The useful decision is the net relationship outcome under transparent terms, not the smallest possible liability.
Partner concentration is another risk. A co-brand program may depend on a travel or retail partner for both customer acquisition and redemption value. Changes in partner economics, service quality or strategy can affect the issuer even when credit performance remains stable. Contracts, operational resilience and customer communications therefore belong in the rewards-risk review alongside the actuarial-style estimate of future redemption.
Customer value must survive the redemption experience
Analysis: evaluate whether customers can turn points into the value they expected at enrollment. Availability, minimum redemption amounts, transfer delays and the clarity of expiration terms can matter as much as the advertised earning rate. Rising balances could reflect successful engagement, deliberate saving for a large reward, or difficulty redeeming. Those explanations have different implications for retention and eventual fulfillment cost.
Compare acquisition cohorts using active spending, successful redemption, service contacts and contribution after bonuses. A customer who earns rewards on purchases that would have occurred anyway creates a different economic result from one who shifts profitable activity to the issuer. Redemption friction may reduce short-term expense while undermining future business; that tradeoff should be visible rather than described simply as favorable breakage.
Follow cash and profit across the partnership
Illustrative analysis: suppose a campaign generates $2 million of additional annual purchase volume with $40,000 of incremental revenue before rewards. If incremental reward fulfillment is $25,000 and acquisition and servicing cost $20,000, the campaign loses $5,000 before funding, credit losses and other costs. Higher spend alone has not established a profitable campaign. These assumptions are hypothetical, not an issuer or network benchmark.
Payment to a loyalty partner, expense recognition and the customer’s later redemption may occur at different times. Reconcile these flows before treating a favorable estimate change as new cash generation. For a partner, a large issuer relationship can support revenue and distribution while also creating concentration and contract-renewal exposure.
What makes a rewards program durable
The strongest evidence combines customer use, repeat engagement and contribution after the full cost of the promise. Confidence should weaken if bonuses attract short-lived relationships, redemption costs outpace earned revenue or service problems prevent customers from obtaining advertised value. Keep accounting estimate movements separate from changes in the underlying franchise.
The 2025 filings remain dated evidence. This revision broadens the economic interpretation; it does not supply a current valuation of either company’s loyalty obligations.
Sources
- American Express 2025 Form 10-K: Membership Rewards accounting; year ended December 31, 2025Filing / reportBack to text: ↑
- Delta Air Lines 2025 Form 10-K: American Express and loyalty arrangements; year ended December 31, 2025Filing / reportBack to text: ↑