The study examines household finances after U.S. states legalized online gambling at different times. Using household panel data, the researchers found that credit-card debt increased by 11.9% after legalization, with the rise concentrated among households that already had credit-card debt.
Online gambling legalization was followed by higher credit-card debt
The largest increases occurred among households already carrying debt and groups considered more likely to gamble online.

Debt rose after legalization
Online-gambling legalization increased credit-card debt by 11.9%. The increase was driven by households that already carried credit-card debt. Debt rose 22.5% for households whose head had no college education, 29.7% for households with a Black head, and 13.4% for households with a young man aged 21–45. The researchers found no effects on income, savings or stock holdings, suggesting that changes in earnings or saving behavior did not explain the debt increase. They also found no significant effects in comparison groups considered less likely to participate in online gambling.
Why the debt increase matters
The results identify credit-card debt as a financial outcome that increased after online gambling became legal, especially among groups the study identifies as more likely to gamble online. Because the increase occurred without detected changes in income, savings or stock holdings, the findings point to borrowing rather than those other financial changes as the main measured effect.
Evidence and caveats
The study uses household panel data from the Survey of Income and Program Participation and compares states before and after online-gambling legalization, taking advantage of differences in when states changed their laws. The analysis estimates a causal effect, but the abstract does not report the number of households studied or provide details about the length of follow-up. The findings apply to the outcomes and groups examined; they do not show how individual gambling behavior changed or identify the specific types of online gambling involved.
// Source
Journal of Gambling Studies · 2026 · DOI: 10.1007/s10899-026-10542-y
Authors: Mustafa Enes Caliskan
Institutions: University of Delaware


