A key election issue for the country is whether to renew a federal tax break for the wealthiest Americans, which expires in 2022.
The federal government has been running a series of giveaways to the wealthiest earners, including the Affordable Care Act tax credits, which expired on Jan. 1, 2018.
President Donald Trump has pledged to repeal the tax break, but has not yet indicated whether he would continue it, and Republicans in Congress are divided on whether to do so.
The nonpartisan Tax Policy Center said last week that the break would cost the federal government $6.7 trillion over the next decade, or about $1,800 for every American.
The conservative-leaning American Action Forum released a report earlier this month that estimated that the extension of the tax breaks would cost $5 trillion over 10 years.
Republican lawmakers are also considering a plan that would end the tax deduction for state and local taxes and a repeal of the alternative minimum tax.
The GOP-controlled House has passed a bill to extend the tax cuts, but Democrats and Republicans are unlikely to agree on a final bill before Congress leaves for a July 4 recess.
In the meantime, Senate Democrats are considering legislation to raise the top individual income tax rate to 39.6 percent, the top corporate tax rate from 35 percent to 35 percent and the estate tax to 20 percent.
The Tax Policy Centre estimated that extending the tax relief would cost roughly $2,300 for every single American, and $1.7 million for every family.
This article has been updated to correct the estimated cost of the extension to $2.1 trillion.