The Money Secrets Couples Bring Into Retirement

In all the years I have spent sitting with couples and their finances, nobody has ever told me about a hidden account. No secret credit card has ever come up in a meeting, no undisclosed loan, no cash set aside where a spouse would never look. For a long time I took this at face value. Then I ran into the research, which suggests that roughly a third of Canadians in relationships are carrying some kind of money secret, and I had to accept the more likely explanation. Either the people I work with are far more honest than average, or the secrets are hidden from me too.

This post is about those secrets: what separates a private purchase from a genuine deception, why people who love each other hide money from each other, and why the approach to retirement is the point where a secret stops being survivable and needs to come into the open.

What counts as a secret

Researchers have given this behaviour a name and a precise definition. Emily Garbinsky, Joe Gladstone, Hristina Nikolova, and Jenny Olson, in a paper published in the Journal of Consumer Research, define financial infidelity as two things happening together: a financial behaviour you expect your partner to disapprove of, and the intentional choice to conceal it. Both parts matter. Nobody discloses every transaction to their partner, and forgetting to mention a purchase is not deception. The line is crossed when you expect disapproval and hide the behaviour because of it. A disclosed personal account for hobbies and gifts is privacy. A concealed card carrying $8,000 nobody else knows about is something else.

The researchers built a scale to measure the tendency and tested it across ten lab studies, a field study, and real bank records from a couples' money app. One of their experiments has stayed with me. Married participants entered a lottery for a massage and chose how their winning ticket would be delivered, and the people most prone to financial infidelity chose the unmarked envelope, the one that would give nothing away at home. Secrecy, once it becomes a habit, reaches all the way down into the packaging.

The Canadian numbers suggest the habit is common. A Leger survey of 1,550 Canadians, commissioned by Credit Canada and the Financial Planning Standards Council, found that 36% had lied to a romantic partner about a financial matter and 34% were keeping a financial secret from their current partner at the time they were asked. The most common offence was a credit card balance run up without the other partner's knowledge. The pattern held at every income level and in men and women at nearly identical rates, which means this is less a story about a kind of person than about a kind of situation.

Why people hide money

The engine inside the definition is expected disapproval, and expected disapproval is manufactured at home. Everything in the last three posts feeds into it. A marriage run as a ledger, where every purchase is measured against what the other person spent, turns each transaction into a potential charge against you, and people stop filing the charges they know will be contested. Money scripts do the same work: someone who absorbed early that talking about money causes trouble will keep the peace by keeping quiet, and someone whose identity rests on being the responsible saver may hide ordinary spending rather than watch that identity take a dent. The family CFO arrangement produces its own version. When one partner controls the open system, the other partner's preferences have nowhere to live inside it, and a hidden account can become the one place their own wants still exist.

None of this excuses deception, but it does mean a money secret is usually a symptom of the household's money system, and treating it purely as a character defect misses whatever made the hiding feel necessary in the first place.

When a secret is protection

The exception from the last post applies here with the same force. Someone protecting themselves inside a controlling relationship, or rebuilding after one, is not committing financial infidelity by keeping money of their own. Exit money is safety. The difference is the direction of the trust: concealment inside a trusting partnership erodes something that was working, while private money inside a controlling one protects a person from something that is not. If you are in the second situation, nothing in this post asks you to disclose anything.

What the hiding costs

Secrets have a financial cost before they have a relational one. Hidden debt compounds without being managed, at whatever rate the card charges, outside every budget and every plan. Hidden risk works the same way, since a portfolio nobody else can see is a portfolio nobody else can question. And secrets rarely surface on their own schedule. They come out when a couple applies for a mortgage together and the lender pulls both credit files. They come out in a separation, when full disclosure is required by law. And they come out after a death, in the mail an executor opens, at the exact moment the surviving partner is least equipped to absorb one more loss. The relational cost then lands twice: once for the thing that was hidden, and again for the hiding.

Retirement takes away the hiding places

For the people I work with, mostly within sight of retirement or already there, the stakes change in a way the surveys understate. Working life provides camouflage. Two paycheques, separate spending money, and enough monthly income to service a hidden balance can keep a secret sustainable for years. Retirement removes all of it at once. Income stops arriving as two private streams and starts arriving as a plan the two of you build together, every account gets listed, and the amount you can safely spend each year is calculated from the map you hand over.

A secret at that point has two options. It can surface during the planning, on your terms, or it can stay hidden and corrupt the plan from inside. A retirement plan is a model, and a model is built entirely from what can be seen: the accounts you list, the debts you disclose, and above all the spending you report, because nearly every decision in the plan sits downstream of that number. The retirement date, the timing of government benefits, the amount that can come out of the portfolio each year, and how long the money lasts are all calculated against the spending you say you have.

If part of the real spending is hidden, the model still produces answers, confident ones, and every decision made from those answers is made on false ground. You retire on a date the true numbers do not support, or lock in benefits against a life that costs more than the one in the projection, and the plan does not announce that it is failing; it simply runs short, years earlier than the model promised. And hidden debt at 62 is a different problem than hidden debt at 42, since the working years that could have absorbed it are gone.

The Leger survey found secrets were most common among respondents aged 18 to 34, with 47% reporting they had been on the receiving end of financial deception, against 18% of those 65 and older. I read that as partial comfort at best. Some secrets get resolved along the way, but the ones that survive into the retirement years are the ones that have compounded the longest, and they surface at the hardest possible moments: the income plan, the incapacity, the estate.

Why your advisor will not catch it

I opened this post by saying nobody has ever confessed a hidden account across my desk, and I no longer find that reassuring. A planner sees the open system: the accounts you both list, the statements you both provide, the goals you both describe. A secret built to survive a spouse's attention will survive a planner's attention without much effort, because we stand inside the same disclosure perimeter as the spouse. The annual review is not a safety net for this. If there is hidden money in a household, the only people who can surface it are the two people in the marriage, which is why the way it gets surfaced matters so much.

An amnesty, and a place for privacy

The direct approach is an amnesty conversation, agreed in advance and held once. Pick a date. Each of you arrives with anything the other does not know about: accounts, cards, debts, stashes, the balance you rounded down, the purchase still sitting in the trunk. The ground rules get set before anyone speaks. Whatever is disclosed that day gets folded into the plan rather than prosecuted, questions are allowed but verdicts are not, and the conversation ends with the full map on the table, whatever the map turns out to look like. A debt that enters the plan can be paid down on purpose. A debt that stays hidden just compounds.

Then take away the reason the secrecy started. Build legitimate privacy into the open system: an agreed amount each of you spends every month with no questions asked and no accounting owed, sized to the household budget rather than to guilt. Most financial secrecy is not about hiding an empire; it is about wanting one corner of your financial life that is nobody's business, and a marriage can grant that corner openly instead of forcing someone to dig it in the dark.

So set the date, and if retirement is within sight, set it before any income plan gets built, because the plan will only ever be as good as the map it stands on. Even if both of you arrive with nothing to disclose, you will have learned something you could not have known otherwise, which is that in your marriage, honesty about money is safe. That is the footing every retirement built for two actually rests on.

Sources

Credit Canada and Financial Planning Standards Council. (2018). Survey on financial infidelity among Canadians, conducted by Leger (1,550 respondents). https://www.cbc.ca/news/canada/edmonton/financial-infidelity-canadian-poll-alberta-edmonton-1.4520413

Garbinsky, E. N., Gladstone, J. J., Nikolova, H., and Olson, J. G. (2020). Love, Lies, and Money: Financial Infidelity in Romantic Relationships. Journal of Consumer Research, 47(1), 1-24. https://doi.org/10.1093/jcr/ucz052