Financial Infidelity: When Hiding Money Matters Destroys a Relationship

Financial Infidelity: When Hiding Money Matters Destroys a Relationship

 You’ve just stumbled across a letter from a debt collector, in your husband’s name, that revealed a large debt that had been racked up, that you knew nothing about. You confronted your partner, and it turned out there was also a secret credit card that he’d been hiding with a large amount outstanding. Unfortunately, this is not an uncommon situation. The positive news is therapy can be a positive pathway to addressing financial infidelity and the emotions that go with it (like betrayal, anger, resentment), before it destroys your relationship.

What Is Financial Infidelity?

Financial infidelity happens when one partner hides money-related information, behaviours, or decisions from the other person in the relationship (Joseph & Peetz, 2025). This can include secret spending, hidden debt, undisclosed bank accounts, lying about purchases, or keeping financial problems from a partner.

There is more to it and research shows financial infidelity has 2 key parts:

  1. The financial behavior needs to be expected to be disapproved of, and
  2. Keeping financial secrets is deliberate

While money disagreements are common in relationships, financial infidelity goes beyond ordinary financial stress. It involves secrecy and a breakdown of trust around money, which can leave one partner feeling betrayed, excluded, or emotionally unsafe.

Some common examples of financial infidelity include:

  • Hiding financial documents
  • Secret bank accounts or credit cards
  • Lying about spending or savings
  • Using discreet payment methods to avoid detection by partner
  • Having packages delivered in neutral packaging to avoid contents being obvious
  • Creating debt without a partner’s knowledge
  • Hiding purchases or investment decisions
  • Spending shared savings secretly
  • Lying about unpaid bills or loans

Not all financial secrecy falls into this category. For example, quietly putting money aside to buy your partner a birthday present would generally not be considered financial infidelity because the intention is not deceptive or harmful.

How Common is Financial Infidelity

Financial infidelity is more common that you may think. Research suggests it affects a significant number of couples, particularly those who share financial responsibilities such as mortgages, rent, childcare, savings, or loans.

The 3 most common types of financial infidelity are hiding or lying about spending (85% couples name this), hiding or lying about how much money is in savings, and creating debt without the other person knowing (Gabinsky et al., 2020). Others you might be familiar with are hidden bank accounts and unpaid loans (Nikolova, Olson, & Gladstone, 2025).

Interesting tidbit is that neither age nor gender identity seem to factor in on who is more likely to lead the charge on financial infidelity in a partner relationship.

Relationship satisfaction appears to play an important role. Couples who communicate openly and feel emotionally connected are generally less likely to engage in deceptive financial behaviour.

Why does Financial Infidelity Happen?

Financial infidelity is not always driven by greed or manipulation. In many relationships, it develops gradually and is connected to fear, shame, conflict avoidance, or different attitudes toward money.

Sometimes one partner fears judgment or criticism around spending habits. Other times, couples may have very different financial values, goals, or expectations, and instead of openly discussing the tension, secrecy begins to emerge.

For some people, financial secrecy becomes a way to avoid difficult conversations, uncomfortable emotions, or feelings of failure. Unfortunately, while secrecy may reduce anxiety temporarily, it often creates much bigger problems over time.

How Financial Infidelity Damages Relationships

Money issues can quickly become emotional issues when secrecy enters the relationship.

One of the biggest consequences is the breakdown of trust. Once financial dishonesty is uncovered, many partners begin questioning what else may have been hidden or lied about. This can create ongoing anxiety, suspicion, and emotional distance.

Financial infidelity can also lead to:

  • Increased arguments and blame
  • Decreased physical intimacy as connection is eroded through lies and deception
  • This can things likes hunting for financial statements when your partner isn’t around (online & in files), checking your partner’s banking Apps on phone / devices in secret, logging into your partner’s financial accounts without permission. Oh, and if you get caught snooping, it often leads to better hiding of financial information by a partner (Joseph & Peetz, 2025)
  • Relationship satisfaction (Joseph & Peetz, 2025), commitment and investment tank
  • Divorce – in fact, financial infidelity is a leading cause of divorce if trust cannot be genuinely rebuilt
  • Couples report feeling depressed, anxious, guilty, shameful, resentful, and that needs to be unpacked in therapy

 

financial infidelity

Can You Rebuild Trust After Financial Infidelity

Rebuilding trust after financial infidelity is possible, but it rarely happens quickly.

Repair requires more than promises or apologies. It involves consistent honesty, accountability, transparency, and a willingness from both partners to address the deeper issues underneath the secrecy.

For many couples, healing begins with open and respectful communication. That often means creating space for difficult conversations without immediately moving into blame, criticism, or defensiveness.

Some helpful starting points include:

  • Setting regular times to talk about finances
  • Being transparent about debts, spending, and financial goals
  • Taking accountability for past behaviour
  • Agreeing on shared financial systems and boundaries
  • Learning how to pause conversations when emotions escalate

Small, consistent actions often rebuild trust more effectively than grand gestures.

How to Heal Financial Infidelity as a Couple

There are no quick fixes for healing financial infidelity and it may not be possible, depending on the amount of damage done, and both people’s desire to make the repair. If both you and your partner are committed to repair, it will require doing the work and getting to the root cause of why the issue exists in the first place.

Communication is a great starting point to healing and here’s some tips on how to communicate effectively on the topic  of financial infidelity. (i) create a safe space to talk, where you and your partner are open to talking about the good, bad and ugly of the situation, even when uncomfortable and scary; (ii) allow a chunk of time that is uninterrupted, have a clear agenda for what want to cover in the conversation/s, to help staying on track (and staying out of blaming, judging, yelling, accusing); (iii) have many mini conversations on the topic, so you can experience small wins, many times. This will also help to stay out of emotion; (iv) schedule regular ‘team meetings’ to keep the financial conversation going. Weekly ‘team talks’ may be useful; (v) give each other permission to pause when getting activated, walk away to cool down  and come back to keep talking; (vi) focus on taking accountability for actions, and follow through on commitments to change and track change across time.

Getting professional support can be very useful and can involve different types of services. A few suggestions are:

 Find a financial planner that you and your partner feel comfortable with, to help you create an achievable plan to get out of debt and manage finances as a team. Consider getting ideas on creating a structure with systems you can follow to manage your finances in healthy ways

  1. Attend couples therapy to work as a team to rebuild trust
  2. Attend individual therapy to get to the root cause of the financial infidelity

Couples Case

Megan and Jack had been together for 4 years, married for 2, and had a 1-year-old at the time of coming to couples counselling. Coming to sessions came about after Megan found a letter from a debt collector tucked in the back of  a  filing cabinet showing a large amount of debt owing in Jack’s name. A debt that she had no idea existed, that Jack had accumulated over the past few years.

Megan was devastated (and furious) and had had a huge argument after confronting Jack. To add fuel to the fire, it came out that Jack also had been hiding a secret credit card where he’d racked up big debt. Megan shared in session that she felt  blind sighted and like the marriage was a lie, terrified for the financial future for her family and feeling trapped as have a young child.

For Megan, if the relationship had any chance, coming to couples therapy was a requirement. By the time her and Jack came to couples sessions, Jack was also in individual therapy to get to the bottom of why he was tangled up in financial infidelity in the 1st place. After discussion in early sessions, Megan and Jack agreed on 5 counselling goals:

  1. Learn skills to be accountable, vulnerable, transparent and forthcoming
  2. Learn skills to communicate clearly, respectfully, and to get repair
  3. Learn how to create space and take time out from talking when needed
  4. Learn how to work as a team on finances
  5. Learn skills to build trust and satisfaction in the relationship

 Through counselling, we worked on Megan and Jack learning to have difficult conversations, seek understanding, stay out of assumptions and get clear on what tangible evidence for trust building needed to include for them to feel well in the connection. There was lots of live coaching of skills, lots of brutally honest exchanges and the odd threat of divorce.

They started having weekly ‘team financial meetings’ where all things finances were discussed. They had support from a budgeting expert and learned systems to get out of debt and results were tracked and discussed transparently, on a weekly basis.

Megan and Jack committed to having vulnerable conversations around when triggered, when Jack was at risk of financially irresponsible behaviours, so they could support each other, and pattern break together.

Whilst a work-in-progress, they are building trust, one action and conversation at a time. It isn’t perfect, there are ups and downs, and some conversations are more successful than others, but they remain committed to each other and to healing.

When to Seek Professional Support

Financial infidelity can feel incredibly isolating, especially when trust has been deeply damaged. Many couples find themselves stuck in cycles of blame, defensiveness, anxiety, or emotional distance.

Working with a relationship therapist can help create a safer space to unpack what’s happened, improve communication, and rebuild trust more effectively.

At The Hart Centre, our psychologists and relationship therapists work with couples experiencing trust issues, financial stress, communication breakdowns, and relationship conflict. We help couples understand the deeper patterns underneath the behaviour and support them in rebuilding healthier ways of relating.

  

Sources

Garbinsky, E. N., Gladstone, J. J., Nikolova, H., & Olson, J. G. (2020). Journal of Consumer Research, 47(1), 1-24. 

Huddleston Cameron (2019a).  A fifth of Americans lie to their partners about money. MSN Money, January 21

Jeantreau, M., Noguchi, K., Mong, M. D., & Sradthagen, H. (2018). Financial infidelity in couple relationships. Journal of Financial Therapy, 9(1), Article 2.

Joseph, M., & Peetz, J. (2025). Hide and seek with finances: financial infidelity and financial snooping in relationships. Journal of Family and Economic Issues, 46, 122 – 135.

National Endowment for Financial Education (2018). Celebrate relationships but beware of financial infidelity. February 14

Nilolova, H., Olson, J. G., & Gladstone, J. J. (2025). Financial infidelity asymmetry predicts couples’ financial and relationship well-being. International Journal of Research in Marketing, available online 12 July 2025.

Thomas, V. L. , Jewell, R. D., & Wiggins Johnson, J.  (2015). Hidden consumption

behaviour: an alternative response to social group influence. European Journal of Marketing, 49(3/4), 512–31.

Christine McKee
Christine McKee Registered Psychologist
Christine McKee Registered Psychologist

Dr Christine McKee is a registered psychologist with extensive experience supporting individuals and couples across a broad range of emotional, relational, and mental health concerns. She holds advanced qualifications in psychology and has undertaken additional specialised training in evidence-based therapeutic approaches, enabling her to tailor treatment to each client’s unique needs. Dr McKee has worked across both clinical and private practice settings, developing particular expertise in relationship dynamics, anxiety and mood disorders, life transitions, and stress-related challenges. Her approach integrates contemporary psychological research with practical, compassionate care, helping clients build insight, resilience, and meaningful change in their lives.

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