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Don’t forget about your state taxes

March 2, 2019

Updated June 30, 2026

I admit it. As a native Texan I get a kick out of the depiction above of Lone Star State residents’ skewed point of view of the rest of the United States. That humorous map was part of a calendar I bought at Marfa Book Co. while revisiting my West Texas roots a few years ago.

That map came to mind as I was updating some recent federal tax changes that could affect state tax laws, too.  

Here on the ol’ blog, I tend to focus on federal tax filings. That’s because almost all of us at some point in our lives have to file paperwork with the Internal Revenue Service.

But there also are state, and in many cases local, taxes. And I promise that my playful poke at the 49 states that aren’t Tejas won’t affect my coverage of their tax laws.

The hubby and I were introduced to these additional levies when we moved from our native no-income-tax Texas to Maryland. We handed over extra money every April to the Old Line State and our suburban Washington, D.C., county for almost two decades.

Then we moved to Florida and got back into the no-income-tax swing of things. And then back home to Texas. Still, we remember the added tax tasks we had to handle every spring.

We’ve been fortunate to not have to deal with state taxes for much of our filing lives. But believe me, Texas and Florida got their cuts via sales and property taxes. 

9, but really just 8, no-income-tax states: Joining us and our current and former neighbors in the Lone Star and Sunshine States in not having to pay state taxes on wages are residents of Alaska, Nevada, New Hampshire, South Dakota, Tennessee, Washington, and Wyoming.

New Hampshire is the newest member of the no-individual-income-tax-club. The Granite State’s previous tax on individuals’ interest and dividends earnings was repealed for taxable periods beginning after December 31, 2024.

The end of Tennessee’s Hall Tax, its levy on certain investment earnings, was a big deal. It had been on the Volunteer State’s books since 1929, when it became law thanks largely to the efforts of the state senator for which it is named, Frank S. Hall. It was phased out, and and officially ended on Jan. 1, 2021.

Then there is Washington. The Evergreen State has taxed its wealthier residents’ capital gains transactions at a 7 percent rate since 2022. Three years later, it added a 2.9 percent surtax on investment profits that exceed $1 million in a calendar year, making the effective tax rate on those amounts 9.9 percent.

So, by my (and others’) accounting, Washington technically is no longer a true no-individual-income-tax state. 

Mississippi, however, could bump the income-tax-free tally back up to nine. In 2025, the Magnolia State codified a plan to phase out its income tax by next decade.

Where and when state taxes are due: Despite these relatively recent moves by some states to eliminate individual income taxes, filing an added state-level return each spring is an accepted part of their tax lives.

I try to keep up with state tax matters, but since there are 50 states, plus the District of Columbia, and just one of me, these jurisdictions sometimes get somewhat short shrift here at the ol’ blog, at least when it comes to specific filing responsibilities.

State taxes got a renewed focus during the 2019 filing season since it was the first one in which we personally felt the effects of the federal Tax Cuts and Jobs Act (TCJA) of 2017. That happened again in the 2026 filing season, with some tax provisions in the One Big Beautiful Bill Act (OBBBA) retroactive to the 2025 tax year appearing on our federal returns.

Conformity tax factors: All changes to the federal Internal Revenue Code (IRC) are important to states because most that do collect income taxes rely in some form on the filings their residents submit to the Internal Revenue Service.

This is known as conformity, and it determines how and how much federal tax reform is felt at the affected states’ level.

There’s rolling conformity, whereby a states’ laws automatically conform to the relevant federal provisions whenever the IRC is changed.

Rolling conformity is used in 18 states and the District of Columbia for individual income taxes, and in 22 states for corporate taxes, according to Merrill E. Barter, CPA, in a piece for The Tax Adviser.

Conforming states that did not want to follow the TCJA changes, had to take action to decouple from the federal tax code. That same process applied to the GOP big beautiful (in the eyes of some political beholders) tax reform measure that extended most of the TCJA cuts that were set to expire at the of 2025.

There’s also static conformity, which applies in 19 states as far as individual filers and in 21 when it comes to corporate income taxes, writes Barter.

These states conform to the IRC as of a specific date and typically decouple from specific provisions. When the IRC is amended, a state using static conformity may update its conformity date or may incorporate specific provisions of the federal changes.

Barter’s article for the AICPA newsletter earns this weekend’s Saturday Shout Out. He, and his editor CPA Catherine Stanton, take a deep dive into the complexities of the federal and state tax connections vis-à-vis the first major IRC rewrite in more than 30 years.

Surfeit of state tax shouts out: But wait, there’s more.

The Tax Policy Center (TPC), a joint venture of the Urban Institute and Brookings Institution, has a comprehensive collection of ways the new federal tax laws impact states (and their taxpayers) at its special section on States and the Tax Cuts and Jobs Act. So, shout out to TPC, too.

But wait again. There’s even more.

The Institute on Taxation and Economic Policy (ITEP) put together a policy brief that looks at what the TCJA means for states and offers a guide to the impacts and options.

So, there it is. The ol’ blog’s first-ever triple Saturday Shout Out.

If how state taxes are affected by federal tax laws in general, and more specifically the TCJA changes cited in the noted articles (and OBBBA changes and state conformity detailed in this Tax Foundation analysis), appeal to you, enjoy reading these articles.

State tax filing highlights only: If, however, you just want some help on filling out your state tax return, let me direct you to the ol’ blog’s separate page with links to each state’s and D.C.’s official tax department websites.

 

The state tax sites list is alphabetical, and yes, I use the real states, not those in the Texan’s map of the U.S.A. that’s atop this post.

In addition to the links to the 51 states plus D.C. revenue offices, you’ll also get a quick reminder of when your state taxes are due. Hint, most but not all follow the IRS’ April deadline.

I know I could have added more, but as I noted earlier, 50 states and D.C. and just one me.

Plus, the state tax sites are, for the most part, pretty useful. That hasn’t always been the case.

Back in 1999 when my writing turned to primarily taxes, only a handful of state tax offices were online, so it took a while, and lots of calls, to find what you needed on the state or local level.

Nowadays, though, as we’re migrated much of our lives, including taxes, online, state tax officials have taken the hint. Many of the state tax sites are outstanding, both in the material they present and the ease of use.

So, click on over to your state’s tax office. Find out specifics on your filing responsibilities and, in many cases, how you can do so at no cost right there on the state tax Web page.

And if you want more state tax news and info, you can also check out the State Taxes tab at the top of the page or go directly to the listing of all blog posts that have any info on or connection to state taxes.


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The More Tax Posts tab at the top of this page will take you to, well, more tax posts. You also can search below for a tax topic. 

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TO WRAP UP 2026

It’s over! With October’s extended filing deadline behind us, it is now time to focus on year-end moves to reduce your 2026 tax bill. 

You’ll find ways to do just that on the Tax Tips page (see the More Tax Posts drop-down menu at the top of the blog), as well as the separate tax tip pages for each month, notably October through December. If you’re on the Tax Tips page, you’ll find a monthly list at the end of this column. If you’re on another blog page, you can head straight to the October tips; at the bottom of that tips page you’ll find links to all the other 11 months’ collections of tax advice.

Not to spoil what you’ll find in that tax advice, but it does cover such things as tax deductions for charitable donations, investment moves that could reduce tax due, and ways to max out your tax-favored retirement savings. 

Finally, as the year winds down, things get hectic. There are lots of other things to occupy our time, like the much more fun upcoming holidays. But don’t lose sight of taxes, since timing is key. To be of use, most tax moves must be made by the end of the tax year. That’s Thursday, Dec. 31, which also is the last business day of the year. 

So that you don’t miss that final tax year deadline, also keep an eye on the countdown clock below. It will keep you on top of just how much time is left to make important, tax-saving moves. (Note: I’m in the Central Time Zone, so adjust accordingly for where you live.)

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