TAXSIM.app

I wish this would get written up in mainstream media. Hypothesis being that if more people knew this existed, it would put additional pressure on Congress to simplify tax filing.

This is awesome! Permanently bookmarked!

In the 1970s there were massive tax deductions that don't exist today, so the actual tax incidence was much lower than what is implied by the marginal tax rates. There was a…

This seems beyond misleading it doesn't even have a method to enter most of the now illegal methods to lower your tax bill. Tax straddles were only banned in 1977 before that you…

Didn’t take a close look but the 1986 (?) tax code update close major tax avoidance pathways (passive loses and tax shelters in wiki link). I think one issue with calculators…

This calculator doesn't seem to support local income taxes, which many states have [1]. For example Maryland has income tax brackets than other states, but each county levies its…

The tax is not accurate historically, for higher income brackets. Prior to 2018(?) you could deduct the majority of your state income tax from the federal income tax (the "Trump…

The child tax credit calculation is incorrect for 2022+ It should not phase out at 150,000 anymore, but rather starting at 200,000 for single or 400,000 for married filing…

This is great. Could you add a box that displays effective tax rate and marginal rate? It would also be great to provide a line graph that shows the result for all years. There’s…

This is great. I would also love to see a graph of the federal tax over time from 1960 to today.

This is great! If you’re taking feature requests I’d love to see a bar or line chart showing the amount of taxes paid for the Y axis and year on the X axis. Would make comparing…

Would be helpful if there was a way to see a graph of how the amounts change over time. I find myself putting in my info and then click minus on the years to see how the years…

This is awesome! Two features requests: 1. A plot over time 2. Could you adjust the income for inflation, so when you click back 1yr your income goes down accordingly?

Very cool, especially hearing about the implementation. Feature request: Put the effective overall tax rate calculation somewhere on the page - so often people are confused that…

This is great. Could you add a box that displays effective tax rate and marginal rate? It would also be great to provide a line graph that shows the result for all years. There’s…

This is awesome! Two features requests: 1. A plot over time 2. Could you adjust the income for inflation, so when you click back 1yr your income goes down accordingly?

Was hoping it would adjust today's income for inflation going back with a chart over time

This is really great. Can you please add Net Income after calculation. That would be useful.

Is there an option to add some cities or counties, like new york city's local tax?

This calculator doesn't seem to support local income taxes, which many states have [1]. For example Maryland has income tax brackets than other states, but each county levies its…

Are all the dollar amounts in the simulated tax output at the top of the page inflation adjusted? For example, I inputted married, with no dependents with $500,000 salary and in…

Cool use of emscripten. Is this handling inflation at all? Fixed-number items like standard deduction will be impacted by that. I think it gives a general idea of the tax…

Why a 500k$ wages/salaries limit here? :)

Why is the income limited to 500000$?

How is this different than turbotax for instance?

Fantastic job making taxsim more accessible! We've built an open-source version of taxsim called OpenFisca US [1] which we expose in our (also open-source) web app, PolicyEngine…

In 2014, the Policy Simulation Library [1] added a model called Tax-Simulator [2], which is a Python reimplementation of TAXSIM [3][4]. It is available as open-source [5], and…

Sort of tangentially, I'm working with other contributors on https://ustaxes.org, an open source tax filing webapp https://github.com/ustaxes/UsTaxes. Currently, many Federal tax…

The US personal tax code looks extremely complicated to British eyes, but British people have a similar calculator at their disposal at https://listentotaxman.com/ though it only…

This calculator doesn't seem to support local income taxes, which many states have [1]. For example Maryland has income tax brackets than other states, but each county levies its…

How is this different than turbotax for instance?