Whether it's because of changing careers, preparing for a child, or some other life event, you and your partner may need to downsize from two incomes to one. This has a major impact to your budget! But, with some planning, you can make a smooth transition. The easiest way, Jesse says, is to live on a single income before actually losing the second income. With a little help from YNAB, you can practice this and ensure that when the second income goes away, you know how to make your dollars stretch without stress.   Sign up for a free 34-day trial of YNAB at www.youneedabudget.com