Sources

How the source registry works

Every factual claim on TruckTaxHub that touches tax rules, filing requirements, or official procedures traces back to a source ID in a central registry. The registry records the source name, URL, reliability category, and last-verified status. This approach prevents the common problem of article text referencing a source that no longer exists at the original URL or that has been updated with different information. Instead of hard-coding URLs into article body text, each page lists source IDs that map to the registry, making bulk updates possible when official materials change.

Source priority order

• IRS publications, instructions, and official IRS.gov pages — highest reliability for federal tax content
• IFTA official materials and base-jurisdiction carrier manuals — authoritative for IFTA filing and recordkeeping
• State agency pages — supplemental for state-specific IFTA registration and information; subject to change without notice
• Clearly labeled site editorial and policy pages — used only for meta-content about the site itself, not for tax rules

What 'source-gated' means in practice

Source-gated content means that a tax rule, deadline, or procedure is only stated if there is a supporting entry in the source registry pointing to an official document. If a fact is uncertain or the relevant source is ambiguous, the page says what to verify and where — rather than resolving the ambiguity for the reader. This keeps content conservative and avoids repeating an outdated rule as if it were current.

Source reliability categories

When official sources change or are archived

IRS documents are occasionally archived or superseded. For example, IRS Publication 535 (Business Expenses) was archived in 2022 and replaced with web-based guidance. When a source in the registry becomes unavailable or is superseded, the registry entry is flagged, the replacement source is identified, and any pages that referenced the old source are reviewed and updated. Source change events that affect page content are logged on the Updates page.

How to verify a source yourself

• For IRS documents: go to IRS.gov directly and search by publication number or form name rather than relying on a cached or third-party copy
• For IFTA materials: use the IFTA Inc. official website and your base jurisdiction's official carrier manual, not a summary from another trucking site
• For state agency pages: use the state's official .gov domain for the relevant tax or DMV agency; confirm the page date or version where shown
• When a source URL returns an error or redirects: search the agency's own site for the document by name or publication number and report the broken link to [email protected]

What the source registry does not cover

The source registry covers federal IRS materials, IFTA official materials, and a selection of state agency pages for the most commonly referenced jurisdictions. It does not cover every state, every local tax authority, or every possible trucking tax situation. State income tax rules, multi-state apportionment formulas, foreign jurisdiction questions, employment tax details, and retirement planning topics are outside the current source set. Pages that approach those areas include explicit notes directing readers to verify with appropriate authorities or a qualified professional.

Annual source review

Source registry entries are reviewed at least once per year and whenever a content review is triggered by a rule change or source problem. The review checks that source URLs still resolve, that the underlying documents have not been materially revised, and that pages are using the most current version of each source. Entries that fail URL checks or that reference archived materials are updated before the next filing season.