Sinking Funds: The Simple Way to Save for Things You Know Are Coming
Some expenses don’t surprise us. The holidays come every year. Birthdays, trips, car registration, a wedding. And yet somehow they still feel like emergencies when the bill arrives. That’s where sinking funds come in.
I’m not a financial advisor, and this isn’t personalized financial advice. This is how the idea works in general, and what I’m doing in my own life.
What is a sinking fund?
It’s money you set aside, bit by bit, for a specific expense you know is coming. Instead of scrambling for $600 in December, you put away a little each month so it’s already there.
It’s different from an emergency fund. An emergency fund is for surprises. A sinking fund is for things you can see coming.
Why it works
- It turns big numbers into small ones. A big expense divided across months feels manageable.
- It takes the stress out. The money has a job before the bill shows up.
- It protects your other savings. You won’t dip into your emergency fund for something predictable.
How to set one up
Step 1: List what’s coming. Holidays, travel, birthdays, annual bills, big purchases.
Step 2: Put a price on each one. A rough number is fine.
Step 3: Divide by the months you have. If you want $600 by December and it’s June, that’s about $100 a month.
Step 4: Give it its own space. A separate savings account or a labeled bucket keeps it from blending into everyday spending.
Step 5: Automate it. If you have to remember, it won’t happen.
What I do
I’ll be honest, I don’t have a fancy budgeting system. My fiancé and I sit down and look at the numbers together: what we’re making versus what we’re actually spending. We have a wedding fund that we put money toward, and I’m currently starting an emergency fund. That is the same idea as a sinking fund, just with a different name.
Common mistakes
- Making the list too long. Start with two or three.
- Forgetting annual bills.
- Raiding the fund for something else. If you have to, put it back.
Sinking fund ideas to start with
- Holidays and gifts
- Birthdays and celebrations
- Travel and vacations
- Annual bills such as insurance, registrations, or subscriptions
- Car maintenance and repairs
- Medical and dental costs
- Home repairs and updates
- Weddings and big events
- Big purchases like a laptop or furniture
A worked example (with made-up numbers)
Say you’d like to have $600 for the holidays by December, and it’s June. That’s six months. Divide $600 by six and you get $100 a month. If that’s too much, shrink the goal or give yourself more time. The numbers here are just an example, so use your own.
Where to keep your sinking funds
A high-yield savings account, a separate account at your bank, or a savings account with sub-buckets. Check fees, access, and whether the account is insured. Pick what’s simple enough that you’ll stick to it.
Sinking fund vs. emergency fund vs. savings goal
An emergency fund is for the unexpected. A sinking fund is for known future expenses. A savings goal can be longer-term, like a down payment. All three can exist together and each needs its own purpose.
Troubleshooting
“I can’t afford to save anything extra.” Start with the smallest amount, even $5 a week. The habit matters first.
“I keep spending the money.” Move it to a place that’s harder to access, or label the account clearly.
“My income changes.” Save a percentage instead of a flat amount, or catch up in better months.
A monthly check-in
Once a month, look at each fund: are you on track? Do you need to adjust the target? This takes about ten minutes and keeps the whole system honest.
Your first sinking fund in 15 minutes
- Minutes 1 to 5: Choose one upcoming expense and write down its estimated cost and due date.
- Minutes 5 to 10: Divide the cost by the number of months you have, and decide what amount fits your budget.
- Minutes 10 to 15: Open or label a savings account for it, and set up an automatic transfer.
That’s it. You can add more funds later.
Common questions
How many sinking funds should I have? As many as you can manage without feeling overwhelmed. Many people start with two or three and add more over time.
Should I put money in sinking funds before an emergency fund? It depends on your situation. If you don’t have any emergency savings, building that safety net often comes first. A financial professional can help you decide.
What if I don’t spend the whole amount? You get to keep it. Roll it into the next goal or into your savings.
The honest part: sinking funds
You don’t need a perfect system. You need a plan for the things you already know are coming. Start with one fund, one number, one month. If you’re building bigger goals alongside it, my post on building something after a 9-5 without burning out might help, and why your glow-up isn’t working is a good reminder that small and steady wins.
Want a little structure for all of this? Grab the 30-Day Challenge Checklist inside The 30-Day Glow-Up Challenge for Grown Women and start today.
