Home > Personal > Personal Lending > Mortgage > Mortgage Resources > Glossary > Adjustment Period Adjustment Period November 9, 2021 The period that elapses between the adjustment dates for an adjustable rate mortgage (ARM).You Might Also Like: Living QuartersSpring Maintenance Checklist for Your Home All Things CommunityHoli-days of Giving 2022 Everyday MoneyGiving Back During the Holiday Season Living QuartersYour Top Mortgage Questions Answered Living QuartersHow to Understand Mortgage Language