President Donald Trump has promised that Americans will receive larger tax refunds this year due to his "big, beautiful bill." However, the war with Iran and a spike in gas prices could potentially impact many taxpayers' refunds. The average tax refund this year is higher by nearly 11% compared to last year, according to the latest Internal Revenue Service data. This figure will likely change before the filing season ends on April 15, but refund sizes typically level off after late February. Taxpayers claiming new deductions for seniors, tip income, overtime pay and car loan interest are receiving an average refund increase of $775, on average, and this figure is expected to rise to $1,000 by the end of the season. Gas prices have risen to an average of $3.88 nationwide, up 90 cents from February 28, when the conflict began.