
What stands out here, outside of the total deficit accumulation of the last decade (and decades), is that the deficit as a percentage of gross domestic product (GDP) was below the recent averages at only about 2.5% of GDP for 2015 — down from 2.8% in 2014.
Economic growth has helped to boost the revenues of the government, and that was a higher growth rate than the growth in total federal spending. Revenue (total taxes received) was up 8%, versus a 5% gain for spending. Another boost was a last-minute surplus of $91 billion in the month of September.
Individual tax receipts rose 10.5% to $1.54 trillion for fiscal year 2015, while corporate taxes rose 7.2% to $343.8 billion.
Mandatory spending was up as well. Social Security rose 4.4% to $887.8 billion, and Medicare spending rose 6.7% to $546.2 billion. Defense spending was down 2.3% at $591.4 billion.
Monthly reports are very diverse, with huge swings in surpluses and deficits. There are really about three big months for tax receipts from individuals and the rest are full of low receipts and normal spending.
For whatever this is worth, the website USDebtClock.org showed the U.S. national debt total as being $18.4 trillion, or $154,493 per taxpayer (or $57,184 per citizen), as of October 15, shortly after the budget numbers were released. U.S. GDP was roughly $17.6 trillion in 2014 after all the revisions have been considered.