When a number or a factual claim on this site turns out to be wrong, we fix it and record it here:
the date, what was wrong, what it says now, and who could have been affected. Newest first.
What we log
Any wrong figure, wrong calculation, or false statement of fact, whether in a calculator, a table or text.
Not logged: typos, spelling, design, and rewording that leaves the meaning unchanged.
This log was started on . Entries before that date are reconstructed from our change history, and each one names the change it comes from.
Found something wrong? Tell us. A report that names the page, the figure and the
official source is the fastest to check.
Corrections
— Alaska page, home page and llms.txt
What was wrong
The Alaska page called the state the only one of its kind without qualification, although Pennsylvania and New Jersey also withhold unemployment tax from employees. Separately, the home page and llms.txt called Tennessee the only state that had an income tax and voted it away; New Hampshire also repealed its tax on interest and dividends the same way.
What it says now
The Alaska text now says it is the only state with no tax on wages that withholds unemployment insurance from employees, which we checked against our rate file. The Tennessee wording now describes the repealed Hall tax without calling it unique.
Who was affected
Statements in prose only. No calculator result changed.
Change record
edff394
— Sources section of the Michigan, Tennessee and Nevada pages
What was wrong
A shared sentence said the state “does not publish a page we can link.” An independent review caught it while checking the Idaho page, where it was false: the document exists, and we had read it through an archived copy because our tools could not reach the state’s own site. The same sentence was live on the three pages named here and gave a reason that was not documented for them.
What it says now
Each page now states its own reason, taken from our source notes.
Who was affected
Statement about sources. No figure changed.
Change record
a40b9f1
— Ohio page
What was wrong
Two claims were wrong. A $750 city tax was said to reverse the Ohio-over-Utah ranking; it does not (Ohio stays $968.50 ahead, and it takes 2.29% to flip). The page said a school district at the top of the range takes “more than the state itself takes”; a 2% levy on $75,000 is $1,500, against Ohio’s $1,619. Several population claims had not been measured.
What it says now
The false sentences were removed or rewritten to say only what the municipal table counts. The unsourced figure “about two dozen Michigan cities levy an income tax” was removed from seven files.
Who was affected
Prose only. Calculator results were not affected.
Change record
475faac, 7c91966, 043ca1e
— Calculator on every page
What was wrong
Typing a salary with a comma, such as “75,000,” was read as 75, and the page showed about $5.77 a month in green with no warning.
What it says now
Amounts are now read the way people write them: leading $, spaces and thousands commas. Anything else is rejected with an error message.
Who was affected
Affected anyone who typed a comma. Results for numbers typed without commas were correct.
Change record
36fe17c
— Salary tables on the Pennsylvania, Utah and Ohio pages
What was wrong
The published tables disagreed with the calculator on the same page. Ohio showed $43 of state tax on $30,000 where the correct figure is $374.63. Utah’s table missed the credit that fades with income (for example $1,113 against the correct $831). Pennsylvania’s table missed the 0.07% employee unemployment withholding, up to $105 a year.
What it says now
Every table is now generated by the same engine as the calculator, and a test compares every published row with it.
Who was affected
The calculators were correct. The tables were wrong: Pennsylvania from August 28, Utah and Ohio on the day they were published.
Change record
4f8f5c2
— Calculator on every page (head of household)
What was wrong
The form offered head of household, but the federal brackets for it were missing, so the calculator silently used the single brackets. On $75,000 it overstated federal tax by $1,922 a year. In the Washington page’s example, monthly take-home pay was understated by $160.17 ($5,046.01 shown, $5,206.18 correct).
What it says now
The head-of-household brackets were added from IRS Rev. Proc. 2025-32, Table 2. Their thresholds differ from single at the top ($201,750 and $256,200).
Who was affected
Affected every head-of-household result since the launch on August 22.
Change record
905aa54
Where we differ from other sources
Sometimes our figure and a figure elsewhere disagree, and ours is the one that follows the official source.
These are not corrections, but readers ask, so we list them with the proof.
Georgia: 4.99%, not 5.19%
Georgia cut its flat income tax rate from 5.19% to 4.99%. The governor’s office states that HB 463 lowers the rate “beginning January 1, 2026,” and the Department of Revenue’s 2026 Employer’s Tax Guide tells employers they may withhold at 4.99% starting May 11, 2026. Our calculator uses 4.99% for the full year, which is the tax owed. If you see 5.19% somewhere, that is the earlier rate.
This is not a correction to our figure. If you compare year-to-date withholding from January to May with our page, expect a gap: employers withheld at 5.19% until they switched.
The open data files carry a version number, now 2026.1. If a value in them changes
after publication, the version changes and the change is listed here. No changes have been made since release.
Published . Last updated .
StateLine Calc provides general information for educational purposes only. It is not financial,
tax or legal advice. Figures are estimates based on published rates.