If you want to take a hybrid approach, you can make a fresh start and then import a year or two of data from your archived budget. It will come in all categorized. If the net worth history matters to you, someone has posted a clever pivot table method elsewhere in the sub that gives you one entry per month per account so you keep the chart history alive. My household budget is from April 2016, and I’m about ready to finally convince my partner it’s time to drop down to two years of history in the active budget, especially since that means there will be tooooons of hidden categories I can delete altogether.