Where to verify home-selling rules: a source map for US sellers

Match the source to the question

Use the source with authority over the question you are trying to answer. Federal tax guidance, state real estate regulation, county charges, lender payoff and private compensation agreements are different subjects. A single national article cannot establish every amount on your seller net sheet.

Start by writing the question in one sentence. “What is my mortgage payoff for the planned date?” calls for your servicer’s statement. “How is gain calculated?” calls for IRS guidance and individualized tax advice. “What compensation did I agree to?” calls for the signed agreement and, if disputed, local legal interpretation.

This source map explains where to look without inventing local rates or claiming that an industry guide is legislation. Keep the source URL, applicable jurisdiction or edition and the date you consulted it with your notes.

Use a source hierarchy

Question	Best starting point	Important limit
Federal gain and reporting	IRS Publication 523 and sale-year instructions	Individual facts and later developments matter
Agent licensing	State regulator’s official lookup	Status is not a performance guarantee
Compensation obligation	Signed agreements and local legal advice	Industry summaries do not interpret your contract
Payoff amount	Your loan servicer	Amount is date-specific
Local transfer charges	Relevant government office and settlement professional	Jurisdiction and exemptions matter
Payment fraud	Bank and FBI IC3 guidance	Recovery is not guaranteed

Ask whether a source is explaining law, describing policy, offering general education or quoting your transaction. Those categories should not be blurred. A provider’s estimate can be useful evidence of its quote while remaining unsuitable as proof of a nationwide price.

When a page refers to another jurisdiction, retain that limitation in your notes. Connecticut’s seller-agent guidance, for example, does not establish every other state’s agency duties.

Read dates and editions honestly

A page showing a recent crawl or search result date is not necessarily a newly reviewed rule. Read the source’s own publication, revision or edition information. If you cannot establish a current figure, explain the method and ask the responsible source rather than supplying an invented number.

At this site’s review, the linked IRS Publication 523 is labeled for 2025. We identify that edition and avoid presenting unverified 2026 numerical thresholds. For a sale in a later tax year, check the relevant instructions and future developments with your adviser.

Likewise, NAR consumer materials explain industry practice and choices; they should not be called federal legislation. A signed contract may create an obligation even when an educational source describes a payment as negotiable before agreement. The question changes once terms have been accepted, so obtain advice about your actual document.

Create a verification note for each material claim

A compact verification note can contain the question, source, jurisdiction, document date, answer and unresolved condition. For example: “Payoff through expected closing date: requested from servicer; current worksheet uses provisional balance; replace before final planning.” That is more honest than writing “verified” without the statement.

For local charges, request the official calculation or schedule and ask how exemptions and allocation apply. For fees, retain the quote and signed version. For tax, retain records the adviser needs instead of asking an online calculator to determine eligibility.

Do not fabricate citations to make a guide appear authoritative. If a source is inaccessible or does not support the claim, mark the question unresolved. This site uses illustrative numbers for arithmetic precisely because provider prices and local outcomes cannot be inferred from a general source. Consult a professional when the consequence of getting the answer wrong is material to your transaction.

Explain what a source does not establish

When you share a source with a co-owner, add one sentence about its limit. A CFPB explanation of payoff does not tell you your own payoff amount. An IRS gain framework does not establish your basis. A regulator’s discussion of negotiability does not tell you which compensation terms you already accepted. Keeping that limit visible prevents a valid source from being used to support an unrelated conclusion.

For a material transaction decision, connect the general rule to the actual document or professional confirmation. If that connection is missing, the question remains open even when the source itself is authoritative.

FAQ

Is a government homepage enough to verify a specific claim?

It can identify the institution, but a specific rule usually needs the relevant publication or official page. Use links you have actually checked and record what they support.

Are industry guides official law?

No. They can explain an organization’s practices or consumer choices, but jurisdiction-specific legal obligations require the appropriate legal sources and advice.

Can I use another state’s fee schedule?

Do not apply it to your property without confirming jurisdiction. A nearby transaction or similar sale price does not establish your local charge.

What should I do when a source is unclear?

Keep the uncertainty visible and ask the responsible agency, servicer or qualified professional. Do not turn an assumption into a precise factual claim.

Continue your planning

Sources and scope

Source pages checked October 29, 2026. This is the site’s factual research date, not a claim of professional review. Examples are illustrative. Local obligations and individualized legal or tax questions require qualified advice.