This article examines Minimum Annual Guarantees (MAGs) in U.S. airport concession agreements — how they are structured, how COVID-19 exposed their limitations, how the industry has reformed them, and how they interact with bond covenants and airline rate-setting. All data is sourced from publicly available airport board resolutions, ACFRs, Official Statements, FAA ARPA Concessions Relief program data, MSRB EMMA filings, ACRP publications, rating agency reports, and concession RFP documents posted on airport procurement portals. No confidential or proprietary data from DWU client engagements was used.
Executive Summary
Minimum Annual Guarantees are the contractual revenue floors that define the financial architecture of U.S. airport concession programs. A concessionaire pays the greater of the MAG or a percentage of gross revenue — and that “greater of” construct is both the source of airport revenue stability and the central point of structural vulnerability. The COVID-19 pandemic exposed the limits of fixed MAG models as traffic fell 60–95%, forcing the industry to reevaluate how MAGs are set, escalated, and made resilient. The post-pandemic period has produced permanent changes: sliding-scale and traffic-linked MAG formulas are now standard in new RFPs, CPI-based escalation is being replaced with prior-year actual-revenue escalators, and even outright MAG elimination has emerged as a tested alternative. Airport finance professionals managing bond covenant compliance, rate-setting, and concession procurement may understand both the historical mechanics and the evolving best practices documented in this guide.
1. MAG Structure Types and Calculation Methods
The Core Formula
All MAG structures operationalize the same fundamental payment rule: Annual Payment = MAX(MAG, Percentage of Gross Revenue). When actual performance exceeds the MAG threshold (the “breakpoint”), the concessionaire pays only percentage rent. When performance falls below it, the MAG becomes a fixed minimum obligation regardless of sales. North American airports track MAG payments as a key performance indicator; a concessionaire paying the MAG rather than percentage rent indicates sub-target performance. International airports, by contrast, often structure MAGs as the exact expected payment with percentage rent as an overperformance bonus.
Five Calculation Approaches
Type 1: Fixed Dollar + Flat Annual Escalation. The most widely used structure (22 of 31 large-hub airports, DWU concession database FY 2025). A base MAG is established at contract inception and escalated by a fixed rate (2–4% at 22 of 31 large-hub airports, DWU concession database FY 2025) annually regardless of traffic. The MAG never decreases and increases by no more than the stated escalation rate in any single year. This provides maximum predictability for bond coverage calculations but creates the structural rigidity that caused problems during COVID-19.
Type 2: CPI-Based Annual Escalation. The escalation rate tracks the Consumer Price Index rather than a fixed percentage. San Francisco International Airport (SFO) used CPI-based escalators for its specialty retail leases — resulting in MAGs growing approximately 2% annually even as per-passenger spending declined 17% versus pre-pandemic levels, SFO Board proceedings documented 12 of 16 specialty retail leases reaching unsustainable MAG levels. SFO’s Board of Supervisors approved a remediation program in February 2025 (Resolution No. 062-25) explicitly replacing CPI adjustment with a prior-year base rent methodology.
Type 3: Prior-Year Actual Revenue Escalator (Emerging Industry Standard). The MAG for an upcoming lease year is reset to the greater of the existing MAG or 85% of Base Rent for the prior lease year. This protects the airport (the MAG never decreases below the prior year’s level), protects the concessionaire (if actual revenues decline, the MAG does not continue compounding upward via CPI), and self-corrects over time (a strong performance year elevates the future MAG naturally). SFO adopted this methodology for both its 69 F&B leases (August 2025, Resolution No. 25-0130) and 17 specialty retail leases (February 2025, Resolution No. 062-25).
Type 4: Percentage of Projected Revenue. MAG is set at 70–90% of the revenue projection developed at bid time. Commonly used in initial-year MAG settings when no prior performance history exists. The Charlottesville-Albemarle Airport rental car RFP specified a MAG floor of $230,000 per year tied to 10% of projected gross revenue. This approach transfers projection risk partly to the concessionaire.
Type 5: Traffic-Linked (Passenger-Indexed) MAG. MAG scales proportionately with enplanement counts, typically using the same terminal or zone as the measurement boundary. Sacramento International Airport’s (SMF) 19-year dataset demonstrated that MAG collections represented only 0.02–0.06% of total concession revenue across F&B, retail, and rental car — minimal revenue floor protection. This led SMF to eliminate MAGs entirely from new contracts in favor of tiered baseline percentage rates. Traffic-linked structures are the preferred post-COVID formula for the Airport Restaurant & Retail Association (ARRA), which in its June 2021 white paper proposed automatic MAG suspension whenever zone enplanements decline by 20% for two consecutive months.
MAG Levels by Concession Category
| Category | % Rent Range | MAG Basis | Notes |
|---|---|---|---|
| Food & Beverage | 10–15% | Prior year actual or fixed base | Stepped by revenue tier common (e.g., SMF: 9–14%) |
| Specialty Retail | 12–18% | Prior year actual; CPI being phased out | SFO shifting to 85% prior year Base Rent |
| Duty-Free | 25–30%+ | Fixed base; contingent tiers above threshold | Rates of 25–30%+ at large international hubs; contingent tiers above sales thresholds |
| Advertising | 60–70%+ | Annual fixed fee / MAG | Tampa/Lamar: 65–68%; Huntsville: $200K floor |
| Rental Car (concession fee) | 10% | Fixed floor; CFC separate | Near-universal 10% standard; CFC not a concession fee |
| Parking (concession model) | MAG + % above breakpoint | Fixed annual floor | Airport sacrifices upside; operator bears demand risk |
Duty-free commands the highest percentage rent rates due to the margin profile of duty-free merchandise, captive international passenger demand, and capital investment requirements that major duty-free operators commit to international terminal locations. Advertising operates under the highest percentage rate structure among airport concession categories (per ACRP Report 54) — in Tampa’s Lamar agreement, the concessionaire pays 65–68% of gross receipts, reflecting low capital deployment and high-margin outdoor/indoor advertising.
Hub-Size Variations
Large hub airports use more complex MAG structures with multiple escalation provisions, traffic triggers, and zone-level measurement. The investment required to win major F&B or retail packages at large hubs ($1,000–$1,400+ per square foot in construction costs) drives longer terms (10–15 years for large programs). Medium hub airports are more likely to use fixed-dollar MAGs with CPI escalation due to smaller in-house concessions staff and greater reliance on standard lease templates — precisely the structure that the SFO specialty retail experience proved unsustainable.
2. COVID-19 and MAG Relief (2020–2022)
Scale of Traffic Disruption
Air travel passengers fell 89% in the week ending May 24, 2020 (TSA checkpoint data) versus the prior year, with international flights down 95%. The Airport Restaurant & Retail Association (ARRA) documented that 15–20% of concessionaires’ 2020 budgeted sales were already pre-committed to rent obligations (including MAG, percentage rent, CAM, and marketing fees). ARRA’s core position in its June 2020 white paper was unequivocal: deferring rather than abating MAGs was explicitly rejected, as cumulative deferred MAGs would create a debt burden no recovering concessionaire could repay.
Airport Relief Mechanisms
SFO — Outright Waivers: SFO suspended MAG rent effective June 1, 2020. Through June 2023, MAG had been reinstated for only approximately 63% of all concession leases, reflecting slow recovery at an internationally-dependent airport. By June 2025, reinstatement had reached 89%. SFO’s FY2023 CRRSAA-funded relief program provided grants to fund rent relief for eligible concessions.
Orlando (MCO/GOAA) — Staged Waivers: Orlando International Airport deployed a staged approach over two years. In April 2020, the Board approved 90-day deferrals or waivers; 21 concessionaires accepted, producing $15.3 million in deferrals and $14.2 million in waivers. By August 2020, GOAA authorized a more structured program: 50% MAG waiver for October 2020–March 2021, 75% MAG waiver for June–September 2021, and international concessions experiencing 75%+ passenger decline received further reduction to 12.5% payment. Total impact: FY2020 waivers of $16.5M plus $2.3M deferrals; FY2021 waivers of $31.7M. Total concession revenue declined from $85.2M in FY2019 to $62.7M in FY2020 (−26.4%).
Federal Relief Funding: Congress created three successive rounds of airport relief. The CARES Act (March 2020) permitted airports to use grants for concessionaire rent relief. CRRSA (December 2020) provided $200 million specifically for concession rent relief. ARPA (March 2021) dedicated $800 million to airport concession relief.
The FAA’s ARPA Concessions Rent Relief program distributed $680.9 million across more than 200 airports. The largest recipients included: ATL ($45.8M), LAX ($36.8M), ORD ($35.0M), DFW ($30.7M), DEN ($28.8M), SFO ($23.8M), SEA ($21.4M), MCO ($21.0M), CLT ($20.7M), PHX ($19.2M), MIA ($18.4M), and IAH ($18.8M). The standard allocation was 80% to small concessionaires and 20% to large concessionaires at most airports, reflecting DBE and ACDBE program priorities.
Concessionaire Financial Distress: Dufry (Avolta) Case Study
The global scale of MAG pressure is best quantified through Dufry AG’s (now Avolta) 2020 annual report: turnover declined 69.8% versus 2019 in constant currency; total MAG reliefs of CHF 551.4 million negotiated with airport authorities worldwide; lease expenses swung from an expense of CHF 1,372.9 million in 2019 to net income of CHF 8.0 million in 2020. S&P downgraded Dufry to B+ in October 2020, noting approximately CHF 860 million in MAG concession payments remained outstanding.