The US budget deficit in October increased by 42% compared to a year, to $404 billion, Bloomberg reports, citing data from the country's Treasury Department. Government spending in the first month of the fiscal year rose 12% to $773 billion, while tax revenues fell 9% to $369 billion. Revenue from tariffs fell 39% to $19.2 billion. According to the department's estimates, by the end of this year the budget deficit in the US will increase to about 2.2 trillion dollars.