For a long time, I thought being frugal meant not spending money at all. That saving meant squeezing, sacrificing, and constantly stressing over every purchase. Then motherhood happened. Then entrepreneurship. Then a few unexpected expenses—and I learned that real financial peace doesn’t come from spending less, but from planning better.
That’s when I discovered the magic of sinking funds—aka, the little envelope system that keeps me sane.
What is a sinking fund?
Imagine having an envelope for everything that’s not a monthly bill but definitely shows up in your life: birthdays, holidays, car maintenance, home repairs, school stuff, vacations.
A sinking fund is a designated savings pot where you set aside small amounts regularly for a specific future expense—before it hits. So when the time comes, you don’t panic or swipe the credit card. You just pull from the envelope and… ta-da—it’s already paid for.
Why this was a game changer for me
Life as a mom is beautifully chaotic. Some expenses are predictable (diapers, baby food, doctor visits), but so many things just pop up—and they’re not really optional. You want to provide, you want to make memories, and you also want to feel secure.
And as a small business owner, things can get even trickier. Income isn’t always steady, and expenses can sneak up when you least expect them. Sinking funds help me even out the ups and downs and keep my anxiety low.
What kind of sinking funds should you have?
Here’s what works for me personally—you might want to create a similar list or tweak it based on your own lifestyle.
1. Holidays, birthdays, and special occasions
These aren’t surprises—but they sure feel like it when you forget to prepare for them. I set aside a small monthly amount in a “Gifts” envelope so December doesn’t wreck my budget.
2. Kid-related extras
Think: seasonal clothes, new shoes, toys, preschool items. I have a “Kid Extras” fund that I contribute to monthly, and it’s a total lifesaver.
3. Home maintenance & upgrades
It’s not always about big renovations. Sometimes it’s just a new curtain, fixing a faucet, or buying paint. Still, if I had to pay all at once, it would sting. So I keep a “Home” envelope for that.
4. Vacation or weekend getaway
Even with a toddler, we love a change of scenery. A short local trip can do wonders for the soul. We start saving in our “Travel” fund early in the year so we always have something to look forward to.
5. Car-related expenses
Insurance, oil changes, tires. These things don’t happen monthly, but when they do, they hit hard. It’s much less painful when you’ve planned for them.
6. Business investments
Whether it’s website updates, professional photos, a training course, or branding—these are the expenses that help me grow. Instead of skipping them or stressing, I prepare with a “Business” fund.
How to set up your own sinking fund system
1. List all your non-monthly expenses
Think annual bills, special occasions, one-time purchases. Include personal, family, home, car, and business-related ones.
2. Calculate how much you’ll need and by when
Example: Want to spend $400 on Christmas and it’s May? That’s 8 months to save—so $50 per month goes into your “Christmas” fund.
3. Create separate envelopes or digital accounts
I started with real paper envelopes (I love tangible things), but now I keep everything in my bank app with labeled sub-savings goals.
4. Automate it if you can
If you have regular income, automate transfers. If you’re a freelancer or entrepreneur, treat these as monthly “expenses” and move the money manually when income arrives.
5. Don’t touch it until it’s time
This isn’t your emergency fund—it’s for specific, planned expenses. Protect it. Respect it.
Why sinking funds bring emotional peace
The best part of this system isn’t just avoiding credit cards (though that’s a huge win). For me, the emotional benefits have been even greater:
- I trust myself.
- I spend without guilt—because it’s already planned.
- Unexpected bills don’t shake me.
- I don’t have to say no to everything just to stay afloat.
It’s such a simple habit—but it’s radically changed how I experience money. I’m not constantly in survival mode. I’m building a life with intention. I know where my money is going, and that brings me so much calm.
Real-life example: My own monthly sinking fund setup
Here’s how my current system looks (give or take a little):
| Fund | Monthly Amount |
|---|---|
| Gifts & Holidays (Christmas, Birthdays etc.) | 10.000 HUF (ca. £27) |
| Kid Extras | 5.000 HUF (ca. £15) |
| Home Needs | 7.500 HUF (ca. £20) |
| Vacation | 10.000 HUF (ca. £27) |
| Car Maintenance & Insurance | 5.000 (ca. £15) |
These small amounts don’t seem like much—but over time, they add up. And the peace of knowing I’m covered is priceless.
Final thoughts: It’s not about being strict—it’s about being kind to your future self
You don’t need to be perfect. You don’t need to do it all at once. Start small. Pick two or three sinking funds that would make the biggest difference in your life, and go from there. I started with Christmas for example: it’s a huge cost every year, even though we try and not buy presents for each other with my relatives, and only the children would get their toys and clothes and stuff. But still: the cooking, wrapping, travel – you blink and you’ve spent a fortune on things during the festive season.
If you’re a mom, a business owner, or just someone trying to breathe easier financially, sinking funds may well be your secret weapon. It’s one of the most loving things you can do for your future self—and your family.
So grab a few envelopes (real or virtual), name them, and start filling them with intention. Your future self will thank you.