They know a lower bound on how much income you should be reporting. They have no idea how many dependents you have, houses you sold, charity you donated, foreign income you made, etc etc etc. There are hundreds of other things they don't know which massively affect what you owe.
If they got a W-4 for you and you don't report it, yes you're f'd. But they in no way know how much you owe.
In a better world our taxes could be simpler, but for now let's do our taxes the way they do need to be done.
Generally speaking, the government does in fact know exactly what houses you sold and dependents you have. Those are both matters of public record and registered with the state. How do you think cities assess property taxes? And if you think that charitable donations and foreign income make any kind of dent for 99% of all taxpayers, you're living in a very weird bubble. 87% of all filings take the standard deduction in any given year for a reason.
The government is not a single entity. States do not funnel this information to the IRS.
> Those are both matters of public record
In my state (Missouri) house sale prices are not public record.
> 87% of all filings take the standard deduction in any given year for a reason
Yes I think everyone would be enthusiastic about submitting taxes that are 87% accurate.
That's a weird wrong thing you think. Visit https://www.stlouis-mo.gov/data/address-search/index.cfm and put in any address in St Louis MO and you'll see who owns it, when it sold, how much it sold for, how much property tax they owe, the bounds of their lot, and more.
Here's an example, randomly selected from google maps: https://www.stlouis-mo.gov/data/address-search/index.cfm?par...
This is standard.
> Yes I think everyone would be enthusiastic about submitting taxes that are 87% accurate.
I'm going to ignore this obvious bad faith trolling.
Scroll like 12.5 more pixels. The next section immediately below tax assessed value says "Sales Data" and includes a column for "Sale Price".
The fact remains through all of this that the IRS does actually have _all_ of the needed information for the vast majority of tax filings.
It's an extremely bad faith reach to be like "but maybe I sell my house for bags of paper cash (no banks) every year without telling anyone but want the IRS to know about it" and pretend like that's not an absolutely obnoxiously absurd argument against doing something that would help nearly everyone in the country.
Because, let us be absolutely clear, the vast vaaast majority of everyone in the country live in other states, do report sales even if they do live in those states this person is making the claim about, don't sell or buy houses all that often if at all, and especially don't do it without involving a reporting financial institution.
The federal government likely has zero clue what I spent to buy my house. They could probably find it if they bothered looking hard enough, but it wasn't directly reported anywhere with the government, especially federally.
I'm totally not against having a simple filing system though and agree for most people for most years it would be way simpler. Just pointing out a spot where you're incorrect on the federal government, especially the IRS, knowing everything. You're getting really angry at me about things I've never said. Probably time to calm down my dude.
Here, I have a link of my own: https://www.attomdata.com/news/most-recent/do-you-know-what-...
That site may use voluntary reporting or MLS records, but nobody is under any obligation whatsoever to report the price for private sales.
AND, your bank and investment agencies definitely report everything you put into them. So now you must also be talking about non-disclosed property sales for _cash_, as in paper bills and coins under the mattress. Doing a lot of that, are you?
But tell me more about what percentage of all federal filings you believe would be affected by undisclosed property sales.
The adult thing would be "Wow I guess I had no idea what I was talking about".
https://www.stlouis-mo.gov/data/address-search/index.cfm?par...
How much did the current owners buy it off the church for?
And sure, some agency might have some notification about some wire transfer that happened. It doesn't mean they know what it related to. It doesn't mean the IRS has any knowledge of it.
The IRS probably didn't know and wouldn't know about the kids I have until I told them about it. Sure the federal government would have theoretically known about it from telling the Social Security Administration (not necessarily a requirement!) and later applying for a passport, but the IRS wouldn't automatically know these things. If I told your cousin something do you instantly know it? Federal agencies suck at sharing information.
I do agree we can simplify filing income taxes for the vast majority of people. I agree most of the US doesn't have a kid every year, isn't in a non-reporting real estate state, don't do a ton of stock day trading, isn't donating half their income to charities, etc. But you shouldn't assume the IRS truly knows all your tax situation, and I'd recommend still looking over that simplified return if you've had an odd year if we ever get there.
This wouldn't change accuracy, if anything it might increase accuracy by simplifying it for the vast majority of filers. Nobody is saying you wouldn't be able to file just like you do today, but being able to just review a card of what the government already knows and OK'ing if right would make it massively simpler for 87% of tax filers. You could still have fun spending hours filling out several forms for your odd tax situation.