Couples’ Health Insurance: How Joint PMI Works

Most UK private medical insurers offer joint policies for two adults living at the same address; typically married couples, civil partners, or cohabiting partners. A joint policy is usually a touch cheaper than two individual policies, simpler to administer, and lines up renewal dates so you can review the market once a year rather than twice.

This page covers how joint PMI works, when it’s worth combining cover, and when keeping things separate is smarter.

How a joint policy is priced

Each adult is rated individually for age, postcode and (sometimes) smoker status, and the two premiums are added together. There’s usually a small joint-policy discount; often 3-5%; applied to the total. So a 35-year-old and a 38-year-old don’t pay the same premium; they pay their own age-rated premiums combined.

You can usually choose:

• The same cover level for both adults
• The same hospital list for both adults
• A shared excess or per-person excess (varies by insurer)

Underwriting: each partner stands alone

Joint cover doesn’t merge medical histories. Each person is underwritten separately, on either Full Medical Underwriting (FMU) or Moratorium. One partner’s pre-existing conditions don’t affect the other’s terms.

That means if one of you has a complex medical history, the underwriting outcome may sit better on FMU (everything declared and accepted in writing) and the other partner may prefer Moratorium (lower up-front friction, exclusion lifts after symptom-free time). Most insurers let each adult on a joint policy choose underwriting type independently.

When a joint policy makes sense

• You want one policy, one renewal date, one administrator
• You want a small joint-policy discount
• You’re both broadly comfortable with the same cover level and hospital list
• Neither of you has a strong reason to be on a different insurer

When two separate policies might suit better

• One of you has employer cover already (don’t double-buy)
• You want very different cover levels; one comprehensive, one budget
• One partner has a complex history that’s better placed with a specific insurer
• You’d like to keep medical correspondence separate (rare, but a real preference for some)

It’s worth knowing: brokers can quote both joint and separate options at the same time, so you can compare apples-to-apples before committing.

Adding children to a couples’ policy

Most joint policies can be extended to a family policy by adding dependent children. Common pricing patterns:

• Single child rate; one fee covers any number of children
• Per-child rate; each child charged a flat amount, often £15-£35 a month per child
• Free children; a few insurers offer no-charge child cover up to a certain age

Children typically stay on the family policy until 18, 21, or 24 (the latter if in full-time education). At that age they can usually move to their own policy without re-underwriting.

Maternity and family planning

Routine maternity isn’t covered by PMI; it’s excluded as standard, including for joint policies. What is covered is complications of pregnancy that meet the insurer’s medical criteria. Some insurers offer modest maternity benefits as add-ons (e.g. a fixed cash payment per birth), but these are not full maternity cover.

If you’re planning a family, PMI is best thought of as cover for the rest of your medical life, not for the birth itself. The NHS remains the default for pregnancy and birth.

Mental health and couples

Modern PMI policies include outpatient mental health (typically 10-28 sessions per year, depending on tier) and inpatient mental health where clinically necessary. On a joint policy, each adult has their own mental health allowance; sessions don’t pool.

Switching jointly

Couples often want to switch insurers together. This is straightforward:

• Both partners’ Continued Personal Medical Exclusions (CPME) terms transfer
• Renewal dates align
• The new joint policy starts on the same day for both

A whole-of-market review every year or two often yields meaningful savings without losing the medical history accepted by the previous insurer.

What if we separate?

Joint policies typically include a “separation provision” if the relationship ends, each adult can take their own continuing policy with the same insurer, on similar terms, without re-underwriting. Worth knowing this is available, though we hope it never matters.

Frequently asked questions

Is a joint policy cheaper than two separate ones? Usually slightly; most insurers apply a small joint-policy discount. The bigger savings come from comparing the whole market, not from the joint structure itself.

Can unmarried couples get joint cover? Yes. Most insurers accept cohabiting couples at the same address, regardless of marital or civil partnership status.

Does my partner have to declare my conditions? No. Each adult’s underwriting is separate. Your medical history is yours; theirs is theirs.

Can my partner and I choose different cover levels? Some insurers allow this on a joint policy; others require both adults to be on the same plan. A broker can confirm which insurers fit your preferred setup.

Is it cheaper to add my partner to my employer’s policy? Sometimes, but it pushes up your benefit-in-kind tax charge. The arithmetic varies; worth quoting both options before committing.

Looking for joint cover that fits both of you? Call 0800 131 0400 or email info@insuredhealth.co.uk for a whole-of-market quote.