During the shutdown, the IRS can continue daily activities such as processing returns that come with payments, but they cannot pay out.
As budget negotiations to reopen the government have stalled over President Donald Trump's demand for funding to build a border wall, the risk is growing that tax refunds could be delayed if furloughed IRS workers don't return to work.
And once the IRS begins accepting tax returns, you'll still be able to mail them in or submit them online even if the government is still shut down.
It is likely, however, if the shutdown were to continue into the start of tax filing season that many more IRS employees will be exempted to handle the extra workload. You get in line to get that refund issued.
James Gundersdorff, an accountant licensed by the U.S. Treasury, told WTVD that the shutdown is a "huge deal" for tax season and said people won't be getting money "any time soon".
The deadline for federal tax returns isn't until April 15.
Memphis Grizzlies acquire Justin Holiday from Chicago Bulls
The Bulls have agreed to trade wing Justin Holiday to the Grizzlies , ESPN's Adrian Wojnarowski reported Thursday evening. Holiday is a solid 3-and-D wing player, but the 29-year-old is not as useful to the Bulls as future assets are.
With that in mind, should you wait to file your taxes? An analysis by UBS estimated an overall increase of $42 billion to $66 billion in tax refunds this year over 2017.
As the government shutdown enters another week, federal agencies like the IRS are feeling the effects. As long as the government remains closed down, don't expect to get that money.
The IRS directed ABC News to the lapsed contingency plan in response to further questions.
The tax refund is the single largest financial event of the year for many people, especially who count on large refunds to pay down debt, catch up on bills, or make major purchases.