What insurers already know

What gets checked

The specific sources vary by insurer, by product and by the size of the coverage. Broadly, expect some combination of these.

• Prescription histories, which show medications, dosages and how long you have taken them
• Industry information exchanges holding data from prior insurance applications
• Motor vehicle records
• An attending physician's statement requested from your doctor, for larger amounts or specific histories
• Financial information, for large coverage amounts, to justify the sum applied for
• Credit-based insurance scores, in property and casualty lines where state law permits

The prescription history is the one people forget

It is detailed, it goes back years, and it is often the fastest thing an insurer pulls. Medication implies diagnosis, so a condition you did not mention is frequently visible anyway through what was prescribed for it.

It also means a condition that is well controlled looks like exactly that — controlled — which usually helps you rather than hurting you.

Why accuracy is self-protection

During the contestability period after a policy is issued, an insurer can investigate and rescind coverage for a material misrepresentation on the application.

The person who bears that cost is your beneficiary, at the worst possible moment, years after the application. So the risk of an omission is not that you get a stern letter — it is that your family does not get paid.

Most conditions affect the terms rather than eligibility. A non-disclosure affects whether the policy pays at all. Those are very different sizes of problem.

The mistake that is worse than disclosing

Delaying care, stopping medication, or avoiding a test to look better on an application.

Untreated conditions generally underwrite worse than managed ones, so it usually does not even work — and the health cost is real. Nobody should be trading medical care for an insurance rate.

An error on an application is not automatically fatal

Worth knowing in the other direction too. In many states a misrepresentation has to have been material — broadly, something that would have changed the insurer's decision — before it can support a denial.

So if a claim is ever declined over an omission unrelated to the cause of death, that is worth challenging rather than accepting.

What to have ready

• Your current medications and dosages
• Approximate dates for diagnoses, procedures and hospitalisations
• Your treating physicians' details
• Any pending tests or referrals — say so rather than waiting

Your right to see it, and to correct it

The reports insurers buy about you are consumer reports, and that brings rights with it. You are generally entitled to request a copy of your own file from each reporting agency, and where a report contributed to an adverse decision - a declination, a higher rate, a non-renewal - the insurer must tell you and identify the agency.

Requesting your own file does not affect your rates. It is worth doing once simply to see what is there, because errors are not rare and nothing surfaces them until a decision has already gone against you.

Where something is wrong, dispute it with the agency that holds it rather than with the insurer. The agency is obliged to investigate and to correct or remove information it cannot verify, and a corrected file propagates to every insurer that pulls it afterwards.

How long things stay on the record

Retention periods vary by report type and by state, and insurers additionally set their own rating windows that may be shorter than the record itself.

That distinction is worth understanding. A claim may remain visible in a database for longer than the period during which your insurer actually rates for it, and different insurers use different windows. This is precisely why re-quoting after an incident ages out can produce a materially different price from the same company that raised your rate for it.

Ask your insurer directly how long a specific incident affects their rating. It is a reasonable question, they will answer it, and the answer tells you when shopping is likely to be worthwhile.

What you can decline, and what you cannot

Some data collection is optional. Telematics programmes that track driving behaviour are opt-in, and you can decline them or leave - though it is worth asking whether leaving returns you to your previous rate.

The core reports are not optional in the same way. Applying for insurance generally involves authorising the insurer to obtain them, and declining that authorisation usually means the application cannot proceed.

Where credit-based insurance scores are concerned, state law varies considerably in what insurers may use them for. Several states restrict or prohibit their use, and many require an insurer to reconsider where an extraordinary life circumstance affected your credit. That reconsideration generally has to be requested - it is not applied automatically.

What is not in the file

It is worth being clear about the limits, because the subject attracts more speculation than it deserves.

Insurers work from defined sources: your application, the reports described above, public records, and their own claims history with you. They are not reading your social media as a matter of routine, and the rating factors they may use are constrained by what regulators have approved in each state.

Where a factor is permitted, it has generally been filed and reviewed. That is not an argument that every factor is fair - credit-based insurance scoring is genuinely contested and several states restrict it - but it does mean the process is more bounded and more auditable than it is usually assumed to be.

The practical version

Three things are worth doing once, and they take about half an hour between them.

• Request your file from the main consumer reporting agencies used in insurance and read it for errors
• Ask your own insurer which reports they pull and how long a specific past incident affects your rating
• Where an adverse decision cited a report, ask for the notice identifying the agency, then dispute anything inaccurate directly with them

Why accuracy on the application matters most

Of everything discussed here, the record you control most directly is the one you create yourself when you apply.

An inaccurate answer is the one thing that can genuinely undermine a claim later, because the application forms part of the contract. On life insurance in particular, a misstatement discovered during the contestability period can lead to a claim being reduced or refused.

The questions are not traps. Where an answer is complicated - an investigation that came to nothing, a condition long resolved - say so in full rather than simplifying it. Underwriters see the complicated version constantly and price it routinely.

The three things worth doing

Request your own consumer files once and read them for errors, since nothing surfaces a mistake until a decision has already gone against you. Ask your insurer how long a specific past incident affects their rating, because that tells you when shopping is worthwhile. And answer applications completely and accurately, since that is the one record you fully control and the one most capable of undermining a claim.

Where the rules differ by state

What insurers may use, and how, is set state by state rather than nationally, which is why general advice on this subject is often wrong for any particular reader.

Credit-based insurance scoring is the clearest example: some states prohibit or sharply restrict it, others permit it with conditions. Rules on what constitutes an adverse action notice, and on reconsideration after an extraordinary life circumstance, also vary.

Your state department of insurance publishes consumer guidance on exactly this, and it is the right source for your own situation.

None of this is a reason to withhold information

Knowing what insurers can see occasionally tempts people in the opposite direction - answering narrowly, or hoping something will not surface. It generally does surface, and the consequence of an inaccurate answer is far worse than the consequence of the fact itself.