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Public agency sources
DueDateHQ prioritizes official tax authority pages, filing calendars, form instructions, notices, and emergency relief pages.
STATE COVERAGE
Which state updates can become deadline work for my firm?
DueDateHQ monitors official IRS and state tax-authority pages across all 50 states and DC for rule and filing-date changes. Every change arrives with its source URL and excerpt and is routed through review before it can move a client deadline — comprehensive coverage you can trace and verify, not a black box.
Coverage is software monitoring scope; it is not a guarantee that every deadline applies to every firm.
Last reviewed:
Published state detail pages.
CA Monitored
California
FTB-facing filing updates, deadline notices, form-instruction changes, and relief announcements that can affect CPA deadline triage.
View coverage NY Monitored
New York
Department of Taxation and Finance updates, filing notices, calendar changes, and state-level signals routed into evidence review.
View coverage TX Monitored
Texas
Comptroller updates, franchise-tax filing signals, public notice changes, and deadline-related announcements.
View coverage FL Monitored
Florida
Department of Revenue updates, public notices, relief announcements, and filing-surface changes relevant to CPA operations.
View coverage WA Monitored
Washington
Department of Revenue public updates, due-date notices, and official filing signals that can enter review workflows.
View coverage IL Monitored
Illinois
Illinois Department of Revenue forms, bulletins, and taxpayer guidance can enter source review for entity, sales-tax, and filing-window context in deadline operations.
View coverage NJ Monitored
New Jersey
New Jersey Division of Taxation business tax pages, notices, and filing guidance can enter source review for corporation tax, state filing, and taxpayer-class context in deadline operations.
View coverage PA Monitored
Pennsylvania
Pennsylvania Department of Revenue revenue guidance, tax forms, and public notices can enter source review for business filing, taxpayer type, and period context in deadline operations.
View coverage GA Monitored
Georgia
Georgia Department of Revenue tax forms, news, and public filing guidance can enter source review for state filing, form, and relief context in deadline operations.
View coverage MA Monitored
Massachusetts
Massachusetts Department of Revenue DOR guidance, forms, and taxpayer notices can enter source review for corporate excise, filing-period, and entity context in deadline operations.
View coverage NC Monitored
North Carolina
North Carolina Department of Revenue tax forms, notices, and filing resources can enter source review for corporate, franchise, and due-date context in deadline operations.
View coverage AZ Monitored
Arizona
Arizona Department of Revenue forms, rulings, and taxpayer guidance can enter source review for filing, TPT, and taxpayer-class context in deadline operations.
View coverage CO Monitored
Colorado
Colorado Department of Revenue taxation guidance, forms, and notices can enter source review for state filing, sales-tax, and period context in deadline operations.
View coverage OH Monitored
Ohio
Ohio Department of Taxation tax guidance, forms, and public updates can enter source review for CAT, sales-tax, and entity context in deadline operations.
View coverage MI Monitored
Michigan
Michigan Department of Treasury tax forms, notices, and Treasury guidance can enter source review for corporate filing, tax type, and period context in deadline operations.
View coverage SOURCE MODEL
Coverage is a route from public signal to reviewed client impact.
Coverage starts with public monitoring, then routes candidate changes into source-backed review. A signal becomes operational only when source evidence, client-matching context, reviewer decision, and audit history are present.
Firm-specific applicability
Coverage does not mean every signal applies to every client. The workbench helps a firm review impact against its own client profile.
Operational handoff
Relevant changes can surface in Today, Deadlines, and email workflows after review.
FAQ
State monitoring questions.
Which states does DueDateHQ monitor today?
DueDateHQ public coverage spans all 50 states and DC. Source-backed candidates still require review before they can become reminder-ready work.
How do state updates become work for my firm?
A candidate update enters Alerts with source context, is reviewed for relevance, and can then be applied, marked reviewed, or reverted with an audit trail.
Does coverage mean the update applies to every client?
No. Coverage describes monitoring scope. Applicability depends on the firm’s client filing profiles, jurisdictions, tax types, and professional review.