Washington (CNN Business) The US budget deficit widened to $1.067 trillion for the first 11 months of the fiscal year, an increase of 19% over this time last year, the Treasury Department reported Thursday.

The current shortfall exceeds the full-year deficit for fiscal 2018, which was $898 billion.

President Donald Trump, who promised during the 2016 campaign to eliminate the federal debt , has instead overseen a dramatic increase in deficits.

The White House's Office of Management and Budget has predicted that the deficit will exceed $1 trillion for the entire fiscal year, which ends on September 30. On Monday, the nonpartisan Congressional Budget Office said the federal deficit had surpassed $1 trillion in the first 11 months of fiscal 2019, according to its budget review.

A number of factors are driving the US deficit increase, including the $1.5 trillion tax cuts signed into law by Trump in 2017 along with a massive spending package passed by Congress.

The deficit is expected to swell to $960 billion in fiscal 2019, according to the CBO's latest report, and average $1.2 trillion in each of the next 10 years. The CBO raised its forecast for this year's deficit by $63 billion after Trump signed into law a bipartisan two-year budget deal over the summer.

In August, Congress agreed to a deal that would raise spending by an additional $320 billion over the next two years and suspended the debt ceiling through mid-2021.

The Committee for a Responsible Federal Budget estimates that the 2017 tax cuts combined with new spending by Congress will add more than $4.1 trillion to the federal debt by 2029.