The Firm Letter
Free tool for accounting & CPA firms

An IRS tax‑deadline widget for your own site. Free, one line, no signup.

IRS deadlines, each one verified against its official source — embed it on your site in under a minute. We built this because it's useful on its own, not just as a pitch for the newsletter below.

Live preview

This is exactly what renders on your site

Install

Copy one line, paste it anywhere

  1. Copy the snippet below.
  2. Paste it where you want the widget to appear — a sidebar, a client‑resources page, a footer.
  3. Done. Past dates drop off on their own — you never touch it again.
<!-- The Firm Letter — tax‑deadline widget (US region) -->
<script src="https://thefirmletter.com/widget/tax-deadlines.js" data-region="US" async></script>

Defaults to your visitor's browser. Force a language with data-lang="fr"; pin it to a specific container with data-target="your-div-id".

Liked the widget? The newsletter is the same idea, taken further.

A monthly client newsletter, written and expert‑reviewed before release, sent under your own firm's name. The free samples are demonstration issues: their figures were verified against the official sources, and the independent human review is what a subscription adds. No card required.

Get the free sample pack →