May Auto Lending Market Update: Key Trends and What the Latest Credit Data Reveals

Highlights: 

• Total outstanding auto debt growth is supported by larger average loan balances, persisting despite a slight decline in account volume and a gradual increase in the subprime share of overall debt.

• Synthetic identity risk is a critical factor influencing portfolio performance, with high-risk super-prime accounts showing significantly elevated late-stage delinquency and financial exposure compared to lower-risk accounts

Each month, Equifax provides automotive professionals with a data-driven view of the evolving auto credit landscape. Drawing on comprehensive credit insights, the report highlights emerging lending patterns, borrower trends, and risk indicators that help OEMs, lenders, dealers, and service providers better understand the dynamics shaping the market.

The latest data suggests a lending environment that remains broadly stable while continuing to evolve beneath the surface. Debt growth persists despite slight declines in account volume, lender strategies are diverging across risk tiers, and fraud indicators remain an important consideration when evaluating borrower performance.

Total outstanding auto debt reached $1.7 trillion in March 2026, representing a 1.7% year-over-year increase. While balances continued to expand, total account volume declined slightly by 0.4% to 87.0 million accounts.

This divergence between balances and account volume suggests that larger loan amounts, driven in part by higher vehicle valuations, continue to support portfolio growth even as unit activity stabilizes.

Credit risk distribution also shifted modestly. The subprime share of total auto debt increased 2.3% year-over-year to 21.7%, indicating a gradual expansion of higher-risk lending within overall portfolios. At the same time, deep subprime accounts now represent 14.3% of all accounts and grew 3.5% year-over-year, while near-prime, prime, and super-prime segments experienced slight contraction.

These trends reinforce the importance of monitoring portfolio composition as lenders balance growth opportunities with credit risk exposure.

The latest Market Pulse Automotive Insights Report highlights evolving strategies among lender categories.

Banks saw auto debt increase 2.3% year-over-year to $529.8 billion, alongside a 1.4% rise in subprime share. This trend indicates a continued willingness to expand into higher-risk segments.

Captive lenders, in contrast, experienced a 7.4% decline in outstanding debt to $530.8 billion. Despite the contraction in overall portfolio size, captive lenders increased their subprime exposure by 4%, suggesting a strategic recalibration of risk distribution within their lending activity.

Credit unions saw outstanding auto debt decline 7.9% to $421.0 billion and were the only major lender category to reduce subprime exposure, which fell 3.4% year-over-year.

Across the market, these differing approaches illustrate how lender types are adjusting their risk appetite and portfolio strategy in response to shifting credit conditions and competitive dynamics.

Origination activity through January 2026 totaled 1.9 million units, representing a 2.1% decrease year-over-year. However, total origination balances increased 3.3% to $58.6 billion.

This difference between unit volume and balance growth indicates that higher average loan amounts, rather than a surge in new lending activity, continue to drive origination value.

The credit mix of new loans also shifted toward higher-risk segments. The subprime share of originations increased 11.2% year-over-year to 17.7%, though lending activity remains heavily concentrated among top-tier borrowers.

The super-prime segment accounts for 50.9% of auto loans and 65.6% of auto leases, underscoring the continued dominance of highly qualified borrowers within the origination market.

Among lender types:

• Banks led originations with 556,300 units, representing 2.4% year-over-year growth.

• Credit union originations declined slightly by 0.4% to 511,200 units.

• Captive originations fell 15.0% to 525,500 units.

These patterns reflect the broader shifts in lender participation and strategy across the auto financing ecosystem.

Overall delinquency performance remained relatively stable over the last month.

The 60+ days-past-due (DPD) rate declined slightly to 1.8%, representing a 0.2% improvement year-over-year. Across lender categories:

• Banks reported a 1.2% 60+ DPD rate, a 10.9% improvement.

• Monoline lenders saw delinquency fall 5.1% to 11.3%.

• Captive lenders increased at a 1.1% rate.

• Credit unions reported the lowest rate at 0.9%.

Across credit tiers, delinquency rates declined compared with the prior year. Prime and super-prime accounts saw slight improvements despite already low delinquency levels, while higher-risk segments experienced modest stabilization.

Vintage analysis provides additional context. Loans originated in Q4 2022 and Q4 2023 continue to exhibit higher delinquency levels than earlier cohorts, though Q4 2024 vintages are currently tracking below those peaks.

Beyond traditional credit metrics, fraud risk — particularly synthetic identity activity — continues to influence portfolio performance.

Synthetic ID 3.0 assigns a score indicating the likelihood that an applicant may have a synthetic identity, with scores ranging from 1 to 990. High synthetic risk is defined as scores above 890.

Accounts with elevated synthetic risk show significantly higher delinquency rates than lower-risk accounts. This pattern is especially pronounced within the super-prime segment, where borrowers with credit scores above 720 but high synthetic risk demonstrate a 7.9% late-stage delinquency rate (90+ DPD) compared with just 0.3% among lower-risk accounts.

The financial exposure associated with these accounts can also be significantly larger. Within the super-prime segment, the average bad balance tied to high synthetic risk accounts is approximately $4,400 higher than comparable low-risk accounts.

These findings reinforce the importance of combining traditional credit metrics with advanced fraud risk indicators when evaluating applicants and managing portfolio performance.

The latest data highlights a familiar theme across the auto lending market: overall stability paired with meaningful structural shifts beneath the surface.

Total auto debt continues to grow despite modest declines in account volume, suggesting that rising loan balances remain a primary driver of market expansion. At the same time, lender strategies vary widely, with banks expanding their presence, credit unions adopting a more conservative posture, and captive lenders recalibrating their risk exposure.

Demographic financing preferences, evolving credit risk distribution, and ongoing fraud concerns further contribute to an increasingly complex competitive environment.

For lenders and automotive professionals, navigating this landscape will require maintaining a detailed understanding of borrower behavior, portfolio composition, and emerging risk indicators. As market conditions continue to evolve, the ability to interpret these signals and adapt lending strategies accordingly will remain essential to sustaining both growth and portfolio performance.

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Source: 

Equifax, May 2026 Market Pulse Automotive Insights Report