Moratorium vs Full Medical Underwriting

Moratorium and full medical underwriting are two ways an insurer can assess your medical history. Neither is automatically better for everyone. Compare how each option treats your history, how much certainty you need before cover starts, and what the insurer confirms in writing.

Key takeaways

A two-year post-start qualifying period is common with moratorium underwriting, but the look-back period and qualifying rules vary by policy.

Moratorium underwriting often leaves a condition-specific decision until a claim; full medical underwriting assesses disclosed history before cover starts.

Neither option guarantees that a claim will be accepted; policy terms and accurate disclosure still matter.

CPME may carry existing exclusions or terms when switching, but acceptance and the terms transferred are insurer-specific.

What underwriting does

Underwriting is the process an insurer uses to assess information and decide the terms on which it may offer cover. For private health insurance, your medical history can affect whether a condition is covered, excluded or subject to other terms. The questions and decisions vary, so read the application and policy documents rather than relying on the name of the underwriting type alone.

Two common approaches are moratorium underwriting and full medical underwriting. The names describe broad processes, not identical products across the market. An insurer’s wording determines which history is relevant, what counts as symptoms or treatment, how an exclusion may be reviewed and what information must be disclosed.

If you need more background, read our guide to private health insurance and our guide to pre-existing conditions. Both explain why underwriting can affect what you expect a policy to cover.

Moratorium vs full medical underwriting: at a glance

	Moratorium underwriting	Full medical underwriting (FMU)
Application	Often involves fewer detailed medical-history questions at the outset. The insurer may still ask questions, which you must answer accurately.	Usually involves a detailed medical-history questionnaire before cover starts. The insurer may ask for more information, such as medical records.
When history is assessed	The insurer may assess whether a claim relates to earlier symptoms or treatment when you claim.	The insurer assesses the history you disclose before cover starts and gives you its underwriting terms.
Pre-existing conditions	Relevant conditions may be excluded initially and could be considered later only if the policy’s qualifying rules are met.	The insurer may list particular conditions or treatment as exclusions or apply other written terms.
Typical timing	A two-year post-start qualifying period is common, but the look-back and the events that count differ by policy. See the explanation below.	There is no standard post-start qualifying period. Any exclusion or review terms depend on the insurer’s written decision.
Main advantage	The application may be simpler, and you may not need to settle every condition-specific term before cover begins.	You can see more of the insurer’s position on disclosed history before deciding whether to accept the terms.
Main trade-off	There can be uncertainty at claim time about how the insurer will apply the policy to your history.	Completing the application takes care, and the insurer may exclude conditions based on the information disclosed.

Moratorium underwriting

With a moratorium approach, an insurer may not ask for a detailed medical questionnaire at the start. The policy still applies rules about prior medical history, and the insurer may assess relevant details if you later make a claim. The policy documents define which conditions and circumstances are excluded and whether an exclusion can be reconsidered after a period that meets the insurer’s criteria.

The application may be more straightforward if you do not need every medical decision explained in advance. The trade-off is uncertainty: you may not know how a particular past symptom or episode will be treated until the insurer assesses a claim. Moratorium underwriting does not mean you can ignore questions the insurer asks, and an old or resolved condition is not automatically covered.

The common two-year post-start qualifying period

“Five plus two” is a common shorthand: a look-back at medical history before the policy starts, followed by a qualifying period after it starts. It is not a standard rule for every insurer or product. AXA’s moratorium overview describes a five-year pre-policy look-back and a two-year post-start period as usual examples. However, the current AXA Health Plan FAQ says most new members are assessed against a three-year look-back. It requires at least two years of membership and two consecutive years that meet its definition of “trouble-free” for the condition. Aviva’s published guidance describes a five-year look-back. It says an eligible condition may be considered after two continuous years from the policy start date without advice, tests, treatment or medication for that condition.

The look-back and the two-year qualifying period are separate. In the AXA and Aviva examples, the post-start period is measured from when cover begins; time without symptoms before joining does not replace it. The events that interrupt or affect the period also vary. AXA’s definition, for example, includes seeing a medical practitioner, receiving advice or treatment, following a special diet, and taking medication, including over-the-counter medication. Ask the insurer what counts under the specific policy. Do not assume a condition becomes covered automatically when two years have passed.

Before choosing moratorium underwriting, ask what history is considered, how the insurer defines a related condition, whether and how an exclusion can be reviewed, and which events could affect that review. If you need a decision about a particular condition before cover starts, ask whether the insurer can assess it in advance.

Full medical underwriting

Full medical underwriting usually involves answering health questions before the policy begins. The insurer reviews the information and may issue terms that identify conditions or types of treatment that are excluded or otherwise restricted. This can make the starting position clearer, but the outcome depends on the information provided and the insurer’s assessment.

The potential benefit is knowing more of the insurer’s position in advance. That can help you decide whether the written terms are acceptable before cover starts. The trade-off is that completing the application requires care, and the insurer may apply exclusions or other terms based on the history disclosed.

Ask for the written underwriting decision and check it against the final policy schedule. Confirm that the decision reflects the information you supplied and that nothing in the schedule changes the terms. If anything is missing or unclear, ask before accepting the offer. Full medical underwriting does not necessarily mean that every past condition will be excluded; the insurer’s written decision for your policy determines what applies.

Full medical underwriting does not mean every future claim will be paid. A claim can still depend on the policy definition, referral and authorisation rules, treatment eligibility and the facts at the time. It also does not remove the need to answer application questions honestly and fully.

Which should I choose?

Neither method is right for everyone. Think about how much certainty you need before cover starts and whether you are comfortable with a later claim-time assessment.

Moratorium may be a better fit if you want a potentially simpler application and are comfortable with the insurer assessing relevant medical history if you later claim. Read the look-back and qualifying rules first, especially if you have had symptoms, advice, tests, medication or treatment in the past.

FMU may be a better fit if you want the insurer to assess disclosed history before cover starts and give you written terms to consider. This can be useful if a particular past condition matters to your decision, but the insurer may exclude it or apply other terms.

If you have an ongoing condition, current symptoms or an investigation in progress, neither route guarantees cover for related treatment. Ask the insurer how the specific history would be treated under each option, and request the decision in writing. Our pre-existing conditions guide explains the questions to ask. If you are unsure how to answer an application question, ask the insurer or an appropriately qualified adviser rather than leaving it blank or guessing.

If you are switching an existing policy

When switching, ask whether the new insurer will accept Continued Personal Medical Exclusions (CPME) or a comparable continuation arrangement. Some insurers use a different name: AXA, for example, calls its arrangement Continuing Medical Exclusions (CME). These arrangements may carry existing exclusions or underwriting terms across, but they are not automatic and do not mean an excluded condition becomes covered.

The details vary. Vitality’s underwriting guide says its CPME transfers existing personal medical exclusions, while noting that additional exclusions may apply after assessment. AXA’s moratorium guide describes CME as carrying over existing terms, including exclusions. Bupa says eligible customers may be able to keep existing underwriting terms or a moratorium start date when switching without a break in cover. These examples are not guarantees that another insurer will offer the same terms.

Before switching, ask the new insurer:

Will you accept CPME, CME or another continuation basis for my policy?
Which exclusions and special terms will carry over?
Will you retain the original moratorium start date or progress, and what evidence do you need?
Could you add any new exclusions after assessing my application?
How do the new plan’s benefits and limits differ from my current cover?

Collect your current schedule, exclusions and written underwriting decisions. Get the new insurer’s decision and effective start date in writing, and do not cancel the old policy until the replacement terms are confirmed. Read our health insurance switching guide for a step-by-step checklist.

Questions to ask the insurer

Ask how it defines a pre-existing condition, what time period or events it considers, and whether symptoms, advice, medication or tests count. Ask how a condition related to prior history is assessed and who makes that decision. Request the applicable policy wording and a written explanation for any specific condition that matters to you.

For a full medical underwriting application, check that you have disclosed the information asked for and received a decision that matches it. For a moratorium application, identify exactly what is excluded and what must happen before an exclusion can be reconsidered. If switching, ask how current exclusions and any progress under your existing policy will be treated.

Keep a record of the application, answers, schedule and insurer correspondence. These documents help you understand the cover and provide context if there is a question at claim time.

Common mistakes to avoid

Confusing the look-back with the two-year period. One concerns history before cover starts; the other is a qualifying period after it starts.
Assuming two years guarantees cover. The policy’s exact definition of a trouble-free period and its decision on a related claim still matter.
Treating moratorium as “no questions asked.” Answer any questions accurately and check what the insurer may review at claim time.
Treating FMU as a claims guarantee. A claim must still meet the policy definition, benefit limits, authorisation rules and other terms.
Assuming CPME is automatic. Get the exclusions, any retained moratorium progress and the new start date confirmed in writing before cancelling existing cover.

Frequently asked questions

Is moratorium underwriting better than full medical underwriting?

Neither is universally better. Moratorium may suit someone comfortable with a later assessment, while full medical underwriting may help someone seeking an upfront written view of exclusions. Compare the actual terms and application process for your circumstances.

Is a two-year post-start qualifying period standard?

No. A two-year post-start qualifying period is common, but the look-back period and the events that count vary by insurer and product. Check the current wording and your membership certificate.

Does full medical underwriting mean my claims are guaranteed?

No. An underwriting decision can clarify how disclosed history is treated, but a claim must still meet the policy’s definitions, eligibility rules and approval process. Read the schedule and wording, and ask how a specific treatment would be assessed.

Can an excluded condition become covered under a moratorium?

If a policy allows an exclusion to be reviewed, its wording sets the criteria and any qualifying period. Ask the insurer how those terms apply to your history; do not assume another product uses the same rules.

What does CPME mean when switching?

It means Continued Personal Medical Exclusions. A new insurer may agree to carry forward existing exclusions or related underwriting terms, but acceptance is not automatic and arrangements differ. Confirm exactly what transfers in writing.

What should I do before switching?

Gather your current policy and underwriting documents, disclose information accurately to the new insurer, and request written terms explaining how existing exclusions will be handled. Do not cancel your current cover until the replacement terms and start date are confirmed.

Compare health insurance options, then read our pre-existing conditions guide and switching guide before asking insurers how their terms apply to your history.

Moratorium vs Full Medical Underwriting: Which Is Better? (UK 2026)