The average tax refund has increased, with some reports suggesting it is up by hundreds of dollars for millions of people. The exact amount of the increase is unclear, with estimates ranging from a 10% to 11% rise, and some outlets citing specific dollar amounts, such as $1,000 or $3,400. The reason for the increase appears to be related to new deductions, although the impact of other factors, like rising oil prices, is also being considered.