An unknown donor gave $2.2 million to the Treasury Department in September to help pay for the national debt.

According to USA Today, there is a government account that receives tax-deductible donations from the public sector to help pay off the national debt. This account is called the Public Debt Reduction Fund. The contributions can be given through the Internal Revenue Service or to the Bureau of Public Debt in Parkersburg, W.Va.

The Treasury Direct reported that there is a total of $3,864,661.38 contribution in 2015, and $2.2 million of that came from a single source who didn't provide any details.

In a report by the Inquisitr, the total national debt is $18.6 trillion and is still growing. Even though the $3 million this year doesn't even put a dent to it, there are still hopeful citizens who give extra change to help.

The last time the Treasury Department got a contribution this big was in April 2012 worth $2.1 million. The government agency may not give any details on who gave the amount, but it was given the same month that billionaire Warren Buffet promised to match any similar contributions from the Congress. During the first six months of the year, eight members of the Congress gave a total of $55,739.

Representative Chris Gibson, R-N. Y., is the biggest contributor from the Congress giving $4,357 to the fund every month. That is the same amount he gets for his Army Pension. He gives his Army Pension to avoid "double-dipping," according to press secretary Matt Sheehey.

"It's cumbersome. He has no choice but to write a check and deliver it manually every month," said Sheehey.   

The Congress has passed bills to make it easier for the citizens to donate to the fund through tax return check-offs.. However, the Treasury Department rejected those laws, claiming that it would make tax reforms more complex.