No and this is primarily because of the bloated nature of the tax code to allow for untold quantities of tax breaks and loopholes that never expire so that the rich can keep as much of their money as possible.
A simpler tax code is preferable with all tax breaks being up for renewal vote every 6 years or so.
So would you agree that a flat tax rate of say 15% across the board with no deduction would be acceptable. That would be the direction I would like to see it be moved. Everyone would pay the same percentage equally everyone would have skin in the game no one would get special treatment.
That is not viable for the lowest paid workers because they need more of their money to barely survive. I'd want the standard deduction to be 60-70% of the minimum wage (it's currently 40% at around 6k with 15k being MW). Additionally I'd want EITC to still exist to make having children financially viable to non-wealthy people.
I'd also still want capital gains to be lower on the tax amount for people who make less than 65k a year, probably 8% long term and 12% short term with a FTT also implemented to tax high volume, high frequency trades. The capital gains tax would instead be 12% short term and 15% long term for people making 65k+ a year because they are more likely to derive a significant portion of their wealth from investing rather than a salary. The exact numbers would need tweaking but the idea is to make investing cheaper for those taking on more risk (they have more risk if they have less money to invest).
These tax breaks would be a good place to start for a simplified tax code that would need to be some what progressive due to the simple fact that poorer people need more of their money to survive on than middle/upper class people.
Now your just giving favors to the very rich and the very poor which is the problem right now. The middle class ends up with the least, as for the very poor there is nothing you can do for them but give them opportunity to move up. If you make it better to be poor then they will stay that way happy to just live on welfare and work for cash which is what many do now. Want to move America get away from trying to keep the poor poor. Its foolish to give special to different people it why the Government needs 16,000 IRS Agents.
Actually with the standard deduction set to 70% of minimum wage you have a 10.5k deduction vs the current 6k deduction. For someone making 15/hr lets say (getting pretty close to middle class, but not 100% comfortably so) their tax would be about 2k. With a 10.5k deduction that changes to 1656, s savings of $344 at the current tax amounts. This could be money in a savings or investment account that currently is going to taxes so this does improve things for the middle class to some degree.
A flat tax would double taxes on the poor so doing that is probably a bad idea because it's another method of keeping the poor poor. You necessarily need to have multiple tax brackets because the people on the lower end have to use more of their income to meet basic survival needs, pretending they don't is lying to yourself. Having multiple tax brackets doesn't mean needing 16k IRS agents, the setup I've described is pretty simple for anyone that doesn't have investments, and only slightly more complicated for them but still much simpler than now.
We don't need to help the middle class heavily when it comes to taxes because they are theoretically in a position to handle their tax burden with little to no negative effects.
We need to make the road to the middle class much smoother and easier to access and helping the poor by lessening their tax burden (only eliminating it in cases of EITC claims with children involved) is one method to do this.
This setup still does help the middle class, it offers a higher deduction and cheaper tax rates on capital gains so they have more opportunity for growth.
One additional tax break to consider would be something for property taxes. I'd consider making them tax deductible up to 70% with a cap at 8k.
The most important thing when it comes to taxes is that if people make more money they will be able to handle a higher tax burden.