Pension Rights for Cohabitees vs Married Couples

If you live with a partner but aren't married or in a civil partnership, there's a significant gap in legal and financial protection you may not be fully aware of, and pensions are one of the areas where that gap is felt most sharply. Many long-term cohabiting couples assume that living together for a certain number of years grants them broadly similar rights to a married couple. It doesn't. This page explains, clearly and without judgement, exactly where cohabiting couples stand when it comes to pensions, how this differs from married or civil-partnered couples, and the practical steps you can take to protect each other rather than assuming protection exists by default.

There is no such thing as "common law marriage"

This is worth stating plainly, because the phrase "common law marriage" or "common law husband/wife" is still widely used in everyday conversation, and it creates a genuinely dangerous misunderstanding. There is no such legal status anywhere in the UK, whether in England and Wales, Scotland, or Northern Ireland. However long you have lived together, however many joint bills, mortgages, or children you share, living together without marrying or entering a civil partnership does not create the same legal rights as marriage. Surveys have repeatedly found that a substantial proportion of the public wrongly believes cohabiting for a certain period grants marriage-equivalent rights; it does not, and this misunderstanding is precisely why so many cohabiting couples are caught off guard when a relationship ends or a partner dies.

How this plays out specifically for pensions

On separation, married couples and civil partners going through divorce or dissolution can ask the court to make a pension sharing order, a pension attachment order, or to take pensions into account through offsetting against other assets as part of the financial settlement. This means a spouse who has a much smaller pension than their partner, often because they took on more childcare or reduced their working hours during the marriage, can have that imbalance formally corrected as part of the legal separation process, discussed in more detail on our page about what happens to pensions in divorce.

A cohabiting partner has no equivalent automatic legal right to any share of their partner's pension if the relationship ends, no matter how long the couple lived together or how the pension came to be built up. If one partner spent years supporting the household, perhaps working part-time or not at all to allow the other partner to focus on a career and build up a substantial pension, there is no mechanism, on separation alone, for a cohabiting partner to claim a share of that pension in the way a divorcing spouse could. This is one of the most significant, and most commonly misunderstood, financial risks of long-term cohabitation without marriage.

Death-in-service and survivor pension benefits for cohabitees

The picture is somewhat better, but still far from automatic, when it comes to what happens if a cohabiting partner dies rather than the couple separating. Many workplace and personal pension schemes do allow a nominated or "dependant" partner to receive a survivor's pension or a death-in-service lump sum, even if that partner is not a spouse or civil partner. Crucially, though, this usually requires the deceased partner to have actively nominated their cohabiting partner with the scheme in advance, typically through an expression of wishes form, rather than happening automatically the way it very often does for a spouse.

This is a critical distinction. A married partner is frequently treated as the default recipient of survivor benefits under many scheme rules, sometimes without any nomination needed at all, simply by virtue of being the legal spouse at the time of death. A cohabiting partner, by contrast, generally needs to have been specifically named, and in some schemes may also need to demonstrate financial interdependence or a minimum period of cohabitation, to receive the same treatment. If no nomination was ever made, or if it's out of date, naming a previous partner for instance, a cohabiting partner can be left with no automatic entitlement at all, even after a long-term, committed relationship, simply because the paperwork was never completed or updated.

Married vs cohabiting: a side-by-side comparison

The table below summarises, in general terms, how pension-related rights typically differ between married or civil-partnered couples and cohabiting couples. Exact rules vary between individual pension schemes, so this should be read as a general guide rather than a description of any one specific scheme.

Practical steps cohabiting couples can take to protect each other

None of this means cohabiting couples are without options; it simply means protection has to be actively arranged rather than assumed. The single most important and often free step is to complete, and periodically review, an expression of wishes (sometimes called a nomination) form with every pension scheme you each hold, naming your partner as the person you would like to receive any death benefit or survivor pension. This form isn't usually legally binding on the scheme trustees, who retain final discretion in most cases, but it is the single strongest signal of your wishes and is typically given very significant weight when trustees decide how to distribute benefits. Our page on expression of wishes forms explains how these work and how to complete one.

Writing a will is equally important, since without one, intestacy rules will govern how your estate is distributed on death, and those rules generally give a cohabiting partner no automatic entitlement at all, regardless of how long you lived together. A will can also work alongside pension nominations to create a more complete picture of how you want to provide for a partner, particularly around any assets that fall outside pension schemes.

Beyond pensions and wills specifically, cohabiting couples may also want to consider a cohabitation agreement, which can set out how finances, property, and other assets would be handled if the relationship ended, and to check how life insurance, if either of you holds any, is set up in terms of who benefits and whether it's written in an appropriate way (for example, in trust) to reach the intended person efficiently.

A checklist for cohabiting couples

If you're cohabiting and want to make sure your pension arrangements reflect your actual wishes, the checklist below covers the main steps worth working through together as a couple.

Scotland has some limited additional protections

It's worth noting that Scotland's legal system does provide cohabiting couples with somewhat more recognition than England, Wales, or Northern Ireland, though still nothing close to the automatic rights of marriage. Under Scottish family law, a cohabiting partner may, in certain circumstances, be able to apply to a court for a financial provision on separation, or make a claim against a former partner's estate on death if no adequate provision was made, but these claims are discretionary, must generally be made within a strict time limit, and are not guaranteed to succeed or to result in anything close to what a divorcing spouse could expect. They are also a notably more uncertain and often more costly route than simply having clear pension nominations and a will in place from the outset. Anyone cohabiting in Scotland who is relying on this route as a safety net should understand it is a discretionary court process, not an automatic entitlement, and should not be treated as a substitute for the proactive steps described above.

Common questions about cohabitees and pensions

Does living together for a certain number of years give me any automatic pension rights? No. Unlike some popular belief, there is no length of cohabitation, however long, that automatically creates marriage-equivalent pension rights anywhere in the UK.

If we have children together, does that change anything? Having children together can affect certain child-related benefits and maintenance obligations, but it does not, by itself, create automatic pension-sharing or survivor-benefit rights between cohabiting parents in the way marriage does.

Can we get the same pension protection as a married couple without actually marrying? Not entirely, but you can get close to full protection for death-related benefits through careful nomination of your partner with every scheme, alongside a properly drafted will. What generally cannot be replicated without marriage or civil partnership is the automatic right to a pension-sharing order on separation, which is a specific legal remedy tied to divorce and dissolution proceedings.

What if we later marry, does that retroactively protect the years we cohabited beforehand? Generally, courts consider the full history of a relationship, including a period of cohabitation before marriage, when deciding on a fair financial settlement in a subsequent divorce, so marrying later can still bring the earlier cohabiting years into the picture for these purposes, though this is a matter of family law rather than pension scheme rules specifically, and worth discussing with a solicitor if directly relevant to you.

Why marriage or civil partnership changes the picture so significantly

It's worth understanding why the legal system draws such a sharp line here, even if it feels somewhat arbitrary in an individual relationship. Marriage and civil partnership are formal legal statuses that the law can point to unambiguously, with a clear start date and a formal register, which makes them straightforward for pension schemes, courts, and the state to administer consistently. Cohabitation, by contrast, has no single agreed legal definition or registration process in the same way, which is precisely why the law has been reluctant to attach automatic rights to it in the way it does to marriage, even though public attitudes and family structures have moved a long way from a world in which marriage was closely tied to entitlement in this manner.

Why it's worth addressing proactively, not after the fact

The nature of pension rights means the moment you discover a gap in protection, whether through separation or bereavement, is precisely the moment it is too late to fix it. Unlike many financial products that can be adjusted retrospectively, a pension scheme cannot pay a survivor benefit to an unnamed cohabiting partner after the fact, and a court cannot award a share of a pension to a cohabiting partner who separates without ever having had that legal right in the first place. This is exactly why proactive planning, nominations, and a will, matters so much more for cohabiting couples than for married ones, where a good deal of this protection exists in the background regardless of whether any paperwork has been completed.

A note on inheritance tax

There is a further, related difference worth being aware of: transfers between married couples and civil partners are generally exempt from inheritance tax, while transfers to a cohabiting partner are not automatically exempt in the same way. This can matter for pension death benefits and other assets passing to a cohabiting partner, and it's worth understanding the basics on our page about pension nominations and inheritance tax, particularly if a meaningful pension pot or other assets would be passing to a partner you are not married to.