15 Stealthy Expenses Draining Your Wallet

I once discovered that we'd spent around £585 on mobile games in about two months.

That wasn't a typo. £585.

It started innocently enough. I'd authorised a one-off purchase for a game my daughter was playing and then, during a particularly busy couple of months, didn't pay much attention to what was going through my account.

When I eventually looked properly, there were Apple Store transactions everywhere.

Different games, weekly subscriptions for £11.99 and £14.99, and sometimes several purchases in a single day.

I contacted Apple and managed to get some of the money refunded, but seeing how much had accumulated before I noticed was quite a shock.

It was also a very good reminder that sometimes the problem isn't what we're deliberately spending money on. It's the stuff happening quietly in the background — the subscription we forgot about, the membership we don't use, the annual renewal that rolls around again, or lots of small charges that barely register individually.

Mine happened to be mobile games.

Here are 15 other expenses worth checking.

1. Subscriptions You've Forgotten About

Subscriptions are incredibly easy to collect.

You sign up for a free trial, add a channel because there's one film you want to watch, download an app or subscribe to something that seems useful at the time.

Then you forget about it.

I've done this with Amazon channels myself — I'll cancel it after I've watched this is apparently much easier to say than actually do.

Have a look through your regular payments and see what's still earning its place. You may find something you haven't used for months.

2. Free Trials That Quietly Became Paid Ones

Closely related, but deserving of their own spot.

A free trial doesn't feel like spending because, at the time, it isn't.

The spending starts three days, seven days or a month later when the trial ends and the first payment is taken.

By then you've probably forgotten why you signed up in the first place.

If you're starting a trial because you genuinely want to test something, great. Just make a note of when the paid period begins so the decision to keep it is actually yours.

3. In-App Purchases and Game Subscriptions

For obvious reasons, this one now has a permanent place on my list.

Games and apps can contain purchases, upgrades and subscriptions that don't necessarily feel like conventional shopping — particularly when payment details are already connected to the account.

And as my £585 adventure demonstrated, lots of relatively small transactions can become a very large number surprisingly quickly.

If children use devices connected to your payment method, this one is particularly worth knowing about.

4. Delivery and Service Charges

You order something for £18.

By the time delivery, a service charge and whatever other little extras have joined the party, £18 isn't £18 anymore.

The same thing happens with takeaway apps, ticket bookings and online shopping.

There's nothing wrong with paying for convenience when you want the convenience. It's simply worth looking at the final amount, rather than mentally filing the purchase under the original price.

5. Extended Warranties and Protection Plans

Extended warranties can sound reassuring at the checkout, particularly when you've just spent a lot of money on an appliance.

But they're not automatically good value.

Before adding one, check what protection you already have, what's actually covered and how much the warranty will cost over its lifetime.

Sometimes that extra monthly payment carries on for so long that the numbers stop making much sense.

Related: Appliance Warranties trap

6. Annual Renewals You've Stopped Noticing

Insurance, memberships, software, breakdown cover, domain names, apps — annual payments are particularly easy to forget because you don't see them every month.

Then suddenly £80 or £150 disappears from your account and you think, Oh yes. That.

Some will be things you absolutely want to keep. Others may be services you haven't thought about since the last renewal.

Either way, an annual charge is a much nicer experience when you remember it's coming.

7. Paying for More Than You Actually Use

This could be a premium TV package when you watch three channels, a mobile contract with far more data than you need, cloud storage you've never filled or a software plan with features you've never touched.

Sometimes we choose a bigger package because it looks like better value.

But better value isn't really better value if you don't use the extra bit.

Every so often, it's worth comparing what you're paying for with what you're actually using.

8. Late Fees and Avoidable Charges

Late fees are particularly annoying because you don't really get anything for the money.

A forgotten payment, missed deadline or account dipping somewhere it shouldn't can turn an ordinary bill into a more expensive one.

If this happens occasionally because life happened, that's life.

If the same fee keeps appearing, though, that's worth investigating. A reminder, calendar entry or different payment date might be all that's needed to stop it becoming a regular expense.

9. The Gym Membership That Became a Donation

I have a particularly impressive example of this one.

My ex paid around £60 a month for nearly two years for a gym membership.

He went once.

For the induction.

That's roughly £1,400 in membership fees for one visit — before we even get to the expensive trainers, logo T-shirts, sweatshirts and gadgets purchased in the optimistic belief that this time the gym habit was definitely happening.

There's nothing wrong with paying for a gym you use and enjoy.

But if your gym would struggle to pick you out of a police line-up, it might be worth reconsidering the membership.

10. Streaming Services That Have Multiplied

One streaming service becomes two.

Then there's something you want to watch that's only available somewhere else.

Then somebody in the house wants another one.

Before long, you've recreated a rather expensive TV package using six different apps.

One option is to rotate rather than accumulate. Keep the services you're currently watching, cancel the others and subscribe again when there's actually something you want to see.

You don't have to maintain a lifelong relationship with every streaming platform you've ever joined.

11. Household Costs That Have Slowly Crept Up

Not every hidden expense arrives as a new direct debit.

Sometimes an existing bill simply gets more expensive.

Energy, broadband, insurance, mobile contracts and other household costs can creep upwards while we carry on paying them because that's what we've always paid.

That doesn't mean there will always be a cheaper alternative, but noticing that a bill has changed at least gives you the chance to decide whether you're still happy with it.

12. Small Extras That Join the Main Purchase

This is one of my favourites because the individual amounts look so harmless.

You buy the thing you intended to buy... and then add the accessory, upgraded delivery, little extra at the checkout or something conveniently recommended alongside it.

None of those purchases necessarily matters on its own.

The interesting question is simply how often they're joining the basket.

Sometimes the main purchase isn't what's pushing the spending up. It's the supporting cast.

13. Maintenance You Don't Think About Until Something Breaks

Car servicing, tyres, boiler maintenance and household repairs aren't monthly expenses, so they're easy to forget when thinking about normal spending.

Unfortunately, the car has absolutely no interest in whether its new tyres were included in this month's budget.

These are good candidates for a sinking fund — putting aside a smaller amount regularly so there's already some money waiting when the expense eventually arrives.

Related: Sinking Funds: 12 Spending Pots for UK Household

14. Things That Renew Because Cancelling Them Is a Faff

Sometimes we know perfectly well that we're paying for something.

We just haven't cancelled it.

Maybe you have to log in somewhere, find a password, phone somebody during working hours or navigate a cancellation process you'd rather deal with approximately never.

So another month goes by.

If you keep seeing the same payment and thinking I really need to cancel that, there comes a point when doing the annoying five-minute job becomes considerably cheaper than continuing to avoid it.

15. The “It's Only…” Purchases

“It's only £3.”

“It's only £7.99.”

“It's only an extra fiver.”

And sometimes that's absolutely fine.

A small purchase doesn't become financially irresponsible simply because it's small and frequent. If you enjoy it and it fits comfortably within your spending, carry on.

The problem comes when “it's only” means you've stopped counting it at all.

Five pounds here and eight pounds there can quietly become a meaningful chunk of money over a month — without any individual purchase ever feeling expensive.

The Point Isn't to Eliminate Everything

Going through this list doesn't mean cancelling every subscription, giving up takeaways, leaving the gym and sitting at home in the dark.

Some expenses are useful. Some make life easier. Some are simply things you enjoy spending money on.

The ones worth paying attention to are the expenses that make you think:

Wait... I'm still paying for that?

Or:

That's costing me HOW much?

My £585 mobile-game discovery was definitely in the second category.

You don't need to account for every pound as though you're conducting a forensic investigation. But occasionally looking at what's actually leaving your accounts can turn up some surprises.

And hopefully yours will be considerably cheaper than mine.

Want a clearer picture of where your money is going?

Try free online Budget Calculator to get a clearer picture of your monthly spending.

Or, if you'd rather have something you can save on your computer and use throughout the year, download the free automated Budget Template for 12 months.