Accessibility
What we build to, and what to do when we fall short.
TopicDrill Editorial Editorial teamEvery figure on this site is checked against its primary source before publication, and re-checked when that source republishes.
TopicDrill aims to meet WCAG 2.2 level AA. Body text is never below 16 pixels, colour contrast is checked before a colour is used, every interactive element is reachable by keyboard, and data tables carry real table markup.
The standard
We build to WCAG 2.2 level AA. That is a target we hold ourselves to, not a certification anybody has granted us.
What that means in practice
- Text size. Body text is never below 16 pixels, and the page reflows rather than breaking when text is enlarged.
- Contrast. Every colour pairing is checked against the AA threshold before it ships, not after. Our primary blue sits at 6.7:1 on white; body text at 17:1.
- Keyboard. Every control is reachable and operable by keyboard, in a sensible order, with a visible focus outline. A skip link goes straight to the main content.
- Tables. Data is in real tables with real header cells, so a screen reader announces the row and column a figure belongs to. Wide tables scroll inside their own container rather than breaking the page.
- Calculators. Results are announced when they change, so a screen reader user hears the new figure rather than having to hunt for it.
- Images. Meaningful images carry alt text; decorative ones are hidden from assistive technology rather than described pointlessly.
- Motion. We use very little, and what exists respects a reduced-motion preference.
Where we know we fall short
We would rather list this than claim perfection:
- Some third-party advertising, where it appears, is outside our control and may not meet the same standard.
- Complex data tables on the state comparison pages are usable but dense on a small screen.
Tell us
If something here is difficult or impossible to use, that is a bug and we want to hear about it. Email us through the contact page and describe what you were trying to do and what happened instead. We treat accessibility reports the same way we treat factual corrections: fix first, process second.
Every figure on this page is attributed to a named source with the date it took effect. Our reviewers check them against the primary source before publication.
About our expert
Editorial team
Experience
We publish nothing without a source. Every rate, threshold and limit on this site is attributed to the IRS, the SSA, the Department of Labor or a state revenue department, with the date that figure took effect recorded alongside it.
When a source republishes, the figure is re-checked and the page's updated date moves. Where a number is disputed or varies by locality, we say so on the page rather than picking one and hoping.
Areas of expertise
- Federal tax
- State tax
- Payroll
- Small business
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