Inflation is often underestimated, especially when it has been very low for a long time. However, this can be a big mistake, as shown by the brief rise in inflation to around 10 percent in 2023. But it would be too short-sighted to limit the perspective to general price increases: “personal inflation” can deviate greatly from the average inflation that is regularly talked about and written about in the media. In addition, there is a time component that is often neglected but is of great importance. To understand this, it is necessary to take a close look at one's own balance sheet.