This post is misleading at best, and dishonest at worst.
The IRA has led to the recovery of $1.3 billion in taxes that were owed, all from high earners:
"As part of its enforcement campaign, the IRS has identified 125,000 people who earn at least $400,000 a year but have not filed federal income taxes since 2017. Over the past six months, the IRS has reached out to those taxpayers and recouped $172 million from them.
The IRS is also targeting about 1,600 millionaires with more than $250,000 in tax debt that they have not paid. Nearly 80% of those taxpayers have now made a payment, resulting in $1.1 billion recovered."
Your $16 billion figure doesn't come from your link, so it's unclear where you got that from. Same for your claim that the IRA was projected to bring in $20 billion a year in revenue.
The IRA provided for $80 billion in additional funding to the IRS, however, that is the total amount of funding and not the amount of funding that was directed to enforcement.
“Harris was the tie-breaking vote for the Inflation Reduction Act in the Senate, which not only further spiked inflation, but led to a massive expansion of the IRS with an additional $80 billion to hire 87,000 new agents,” Trump campaign senior adviser Brian Hughes said on a call with reporters Thursday.
That number of agents is a misleading figure, often repeated by Republicans, based on a report about how many total employees could be hired with the money rather than actual auditors focused on enforcement.
The money has been used to improve the IRS in a variety of ways, most of which are unrelated to enforcement:
The IRS has also used the Inflation Reduction Act funding to improve the IRS’ phone service, digitize paper files and create a free, direct tax fil
Also, the Democrats subsequently agreed to rescind $20 billion of the funding, so the funding to the IRS is in actuality $60 billion, not $80 billion.
Since the Inflation Reduction Act passed, Republican lawmakers have made several attempts to claw back the $80 billion that the legislation provided for the IRS.
In a deal to address the debt ceiling and avoid a US default last year, Democrats agreed to allow for $20 billion to be rescinded