Wealth affects credit limits in complex ways, partly due to challenges in measuring net worth and accounting for endogeneity. To address these issues, we use household-level data from the Survey of Consumer Finances (2004–2022) and conduct two-stage least squares (2SLS) regression analysis. In our two-step generalized method of moments (GMM) 2SLS model, bequests serve as instrumental variables for net worth, with controls for demographic characteristics and credit history. We find that both income and net worth significantly increase credit limits. These results are robust in models with alternative measures of credit access, different econometric specifications, and subsamples. We also examine the life-cycle effects of net worth on credit limits–particularly among young adults with entry-level jobs and mortgages–highlighting how limited savings and lower early-career income constrain credit access.