A small but measurable increase in the risk of fatal car crashes occurs on or around April 15, most likely due to stress.
Tax time. Two words that fill millions of Americans with dread. It turns out that there's more to worry about at tax time than just money. People also need to worry about getting on the road. Fatal road accidents rise every year on the date that income taxes are due.
Researchers from the University of Toronto thought that stress from the yearly tax deadline might lead to more road accidents. So they sifted through 30 years of National Highway Traffic Safety Administration records and compared the number of people involved in fatal car crashes on the date income tax was due to the number involved one week before and one week after the due date. They found that the risk of being in a fatal road accident rises on tax day, on or around April 15th every year.
The traffic fatality risk on tax day has increased in the last two decades. E-filing may have made paying taxes more convenient, but it still doesn't take the sting out of paying them.
On average, about 13 additional people were involved in fatal car crashes every tax day, an increased risk of about 6%. This may sound small, but it happens every year. And the risk has increased in the last two decades, with 1990-2010 being more hazardous than 1980-1990 was.