Editorial Standards & Sources Policy

1. Use of IRS sources

Federal tax content on CPAZenith is grounded in primary sources published by the Internal Revenue Service. Where we describe a rule, threshold, form, deadline, or procedure, we work from the current IRS publication, form instructions, revenue procedure, notice, or page on irs.gov that governs it.

• We cite or link to the underlying IRS source where it materially supports a number or rule (for example, Publication 15, Publication 463, Publication 535, Publication 946, Form 1040 / 1040-ES / 941 / 940 / 1120-S / 7004 instructions, and the relevant Tax Topics).
• When the IRS updates a published threshold, mileage rate, contribution limit, or filing deadline, we treat the IRS announcement as authoritative and update affected guides accordingly.
• We do not paraphrase third-party summaries of IRS rules in place of the IRS source. Secondary sources may be used for context, but the rule itself is verified against the IRS.

2. State board and state agency references

For state-level tax, licensing, and practice content we rely on the official publications of the relevant state authority — typically the state board of accountancy for licensure topics, the state department of revenue or taxation for state tax topics, and the state department of labor for payroll and employment topics.

• Licensure, CPE, and practice-mobility content is sourced from the applicable state board of accountancy and from NASBA where it consolidates board guidance.
• State tax rates, brackets, nexus rules, and filing deadlines are sourced from the state's department of revenue (or equivalent agency).
• Where state guidance conflicts with a third-party summary, the state agency's published guidance controls.

3. Review by tax and accounting professionals

Substantive tax, accounting, payroll, and entity-structure content is reviewed by a credentialed professional — a CPA, Enrolled Agent, or equivalent — before publication or after a material rewrite.

• Reviewers check that cited rules, thresholds, and procedures match the underlying primary source and that no example crosses the line into individualized advice.
• Reviewers are identified by name and credential on the article where review has occurred. Absence of a named reviewer means the article is general informational content that has not yet completed professional review.
• Calculator pages are reviewed for formula correctness and for clarity about which inputs are assumed, which are user-entered, and which are intentionally out of scope.
• Reviewers do not review user-submitted comments, third-party advertisements, or content authored by listed professionals on their own profiles.

4. Update schedule

Tax and accounting rules change. We maintain a rolling update schedule so that guides reflect the current year's rules.

• Annual review: every tax, payroll, and entity-structure guide is reviewed at least once per calendar year, typically in Q4 or early Q1, to align with the new tax year's thresholds and forms.
• Event-driven updates: when the IRS or a state agency publishes a material change mid-year — a new mileage rate, an inflation adjustment, a deadline extension, a new form revision — affected guides are updated within a reasonable period of the announcement.
• Corrections: factual errors brought to our attention are corrected promptly. Material corrections are noted at the top or bottom of the article.
• Each article displays a "last updated" date so readers can judge currency at a glance.

5. No individualized advice

CPAZenith guides, explainers, and calculators are general educational information. They are not a substitute for advice from a CPA, Enrolled Agent, tax attorney, or other qualified professional who has reviewed your specific facts.

• Tax outcomes depend on facts our guides cannot see — your filing status, residency, entity election, prior-year carryovers, basis, state-specific rules, and many others.
• Calculator results are estimates produced from the inputs you provide and the assumptions stated on the calculator page. They are not a tax return, a payroll filing, or a professional opinion.
• Reading a guide on CPAZenith does not create a client, accountant–client, or attorney–client relationship with CPAZenith or with any professional listed in our directory.
• Before acting on anything you read here, consult a licensed professional. See our No Tax, Legal, or Financial Advice notice and General Disclaimer for the full terms.