A friend checked their balance at the end of last month, and thankfully, it was more than he expected. He hadn’t deliberately saved anything, but nothing catastrophic had happened either. I can’t remember the fine details, but I know he ended up spending it.
On the surface, it looked like a spending or discipline problem. But I had a different view, and in the following paragraphs, I’ll explain my thoughts and what I believe the best fix was, and the fix is simpler than most financial advice suggests.
Why one balance makes saving hard
When your savings and your spending money are in the same account, every pound or dollar in that account looks available. The balance doesn’t distinguish between money you’re keeping and money you’re spending.
This creates a specific cognitive problem. You make spending decisions based on whether the balance looks healthy, not based on whether you’ve set anything aside. If the number looks fine, spending feels fine. If you’ve mentally noted that £400 of that balance is “for savings,” that mental note competes with every spending opportunity you encounter between now and whenever you transfer it somewhere else, and mental notes lose that competition regularly.
The money then seeps out in small, individually reasonable amounts. A round at the bar. A delivery fee that didn’t seem worth avoiding. A subscription that renewed, and you forgot to cancel. Each decision was fine in isolation. Collectively, the balance is gone before you’ve done anything intentional with it.
The psychology of separating your money
There is a well-established concept in behavioural economics called mental accounting: the tendency people have to treat money differently depending on where it is and what they’ve labelled it as. The same £50 feels very different depending on whether it arrived as a birthday gift, a work bonus, or leftover change from a supermarket run, even though all three are identical once they’re in your account.
This tendency is usually described as a bias to be corrected. But I think it can be a useful tool. When money is in a named savings account, clearly separate from your spending account, it takes on a different psychological status. It’s not spending money. It's the holiday fund, the emergency buffer, the new laptop money. Spending it requires a conscious decision to override its purpose, which creates friction that a vague mental note never does.
The separation doesn’t have to be dramatic. A second account at the same bank, a different balance in the same app, a jar on a shelf: all of these work because they create a visual and psychological boundary between money that is available and money that is not. Artificial barriers are what make behaviour change sustainable without requiring constant willpower.
Separation is not the same as locking money away
A common hesitation about separating money is the fear of losing access to it. If something comes up, will it be there? If an emergency happens, can it be reached quickly?
The answer is yes. Separating your money is not the same as locking it away. It’s not a fixed-term account, a notice period, or a commitment you can’t undo.
What separation does is add one small step between you and the money. That step shouldn’t be a barrier for genuine emergencies. It is a barrier for the kind of casual, unconsidered spending that drains balances without leaving any clear decision behind.
This is precisely the kind of friction that works in your favour. It works passively in the background every day, without you having to actively choose to protect your money each time you open your banking app.
Simple ways to separate your money today
The simplest version of this is a second account. Open one, give it a name that reflects its purpose, and move a fixed amount into it on payday and don’t touch it until the purpose it was created for arrives.
If you have more than one goal you’re working toward, the approach extends naturally. One account for the emergency fund. One for the holiday. One for the thing you’re saving toward that doesn’t have a name yet but represents a general sense of having something to show for the year. For a method to handle several goals at once, see our piece on how to save for several goals at once.
The amount you move matters less than the consistency with which you move it. A small amount transferred every payday builds the habit and the structure, and it grows over time, even if the early contributions feel negligible. For a closer look at how this plays out in practice, see our piece on how small amounts add up.
How Pouches create separation without friction
The Pouch feature on Grey takes this idea and removes most of the friction. A Pouch is a named savings space within your Grey account. You give it a name and contribute to it from your balance. It sits separately from your spending money in the same app, clearly labelled, tracking its own balance against its own purpose.
The name is more important than it might seem. “£1,200” is abstract. “Japan trip” is not. A named Pouch for a specific goal carries the same psychological weight as money in a jar labelled on the outside. You know what it’s for, and you can see how close you are. Spending it means consciously deciding to set the goal back, which is a different decision from spending money that has no label.
Because the Pouch is within your Grey account, there’s no need for multiple bank accounts or juggling between apps.
Create your first Pouch and set money aside today.
Frequently asked questions
Why is it easier to save when money is separate?
Because money sitting beside your spending money looks spendable. When your savings are in the same account as everything else, every spending decision competes with the saving intention, and the saving intention usually loses. Separation removes the competition. The savings are in a different space with a different purpose, and spending them requires overriding that purpose consciously rather than just not thinking about it.
What is mental accounting?
Mental accounting is the tendency to treat money differently based on where it is or how it arrived, even though money is functionally identical regardless of source or location. People spend windfall money more freely than earned money, treat a bonus differently from a salary, and protect money that’s been given a specific purpose more carefully than money that sits in an undifferentiated balance. When used deliberately, it’s a useful tool. By naming and separating money for a specific purpose, you activate the same psychological protection that makes people reluctant to “break into” money they’ve mentally reserved.
Does separating money mean locking it away?
No. The money remains fully accessible. Separation creates a psychological barrier, not a legal or structural one. A Pouch in your Grey account, a second current account at your bank, or a named savings pot: all of these can be accessed immediately if needed. The purpose of separation is to make casual or unintentional spending less likely, not to make genuine access impossible. For real emergencies, the money is always there.
How many savings pots should I have?
As many as you have distinct goals, within reason. One pot per clear goal is a useful starting point: one for an emergency fund, one for a specific planned purchase or trip, one for a medium-term goal like a deposit or career break. Beyond five or six active pots, contributions start to feel too small to be meaningful, and the system becomes harder to manage. Focus on the goals that matter most right now, and add new pots as old goals are reached.
How do I start separating my money?
Start on your next payday. Before spending any discretionary funds, move a fixed amount to a separate account. It doesn’t have to be large. The first move establishes the structure and the habit, and both of those matter more than the initial amount. Name the space after what you're saving for. Set a target if you have one. Then repeat the transfer every payday until the goal is reached. The system is as simple as that, and its power comes from consistency rather than size.
.svg){kind=small}
