The processing time for an EB-1 visa application depends largely on the unique circumstances of the case. On average, the processing times for both the Nebraska Service Center and the Texas Service Center are similar, but delays are relatively common. Typically, the USCIS will process the I-140 petition between 4 months and one year. Then, it can take several more months to process the I-485 Application for Adjustment of Status and issue permanent residence in the United States. If the applicant incurs any delays during the application process or misfiles their application, the processing time can be prolonged.