Picture this. Your best friend announces she’s getting married. You’re thrilled — until the reality sets in. Bridesmaid dress. Bridal shower gift. Bachelorette trip. Wedding gift. Hair and makeup. Suddenly you’re looking at $800–$1,500 in expenses spread across six months, and none of it fits neatly into this month’s budget.
This is exactly the scenario one of my Financial Peace University students faced recently. My advice? Build a sinking fund for it. Start now, save a little each month, and when the wedding day arrives — you’ll be Venmoing that gift with zero stress and zero debt.
That’s the power of a sinking fund.
What Is a Sinking Fund?
A sinking fund is a strategic savings method where you set aside a small, consistent amount each month for a specific known expense down the road. It’s not your emergency fund — that’s for unexpected, urgent surprises like a job loss or a busted water heater. A sinking fund is for the expenses you know are coming but don’t hit every single month.
As Dave Ramsey’s team explains it, sinking funds work great for expenses you can’t or don’t want to pay for in a single month’s budget — things like new tires, Christmas gifts, vet bills, wedding expenses, vacations, home repairs, and annual memberships.
The difference between a financial emergency and a planned expense is simply whether you saw it coming and prepared for it. A sinking fund turns future expenses from surprises into line items.
Sinking Fund vs. Emergency Fund: Know the Difference
These two are not interchangeable, and confusing them is one of the most common budgeting mistakes.
Your emergency fund (Baby Step 1 starts with $1,000, then Baby Step 3 builds it to 3–6 months of expenses) covers urgent, unexpected, necessary expenses. Car accident. Medical bill. Sudden job loss. You didn’t see it coming and you need the money now.
Your sinking fund covers predictable expenses that just don’t occur every month. You know Christmas comes every December. You know your car will need tires eventually. You know your homeowner’s insurance renews annually. None of those are emergencies — they’re just irregular. A sinking fund handles them without derailing your budget or touching your emergency fund.
Real Examples of Sinking Funds Worth Building
The beauty of sinking funds is that you can build one for almost anything planned. Here are some real-life scenarios where a sinking fund saves the day:
🎊 A friend or family member’s wedding — dress, shower gift, bachelorette trip, wedding gift, hair and makeup. It adds up fast.
🦷 Planned dental work — if your dentist tells you in January that you’ll need a crown or oral surgery in March, that’s not an emergency. That’s a sinking fund. Start saving now so the bill doesn’t wreck your budget.
👶 A new baby or growing family — whether it’s your own baby, a niece or nephew on the way, or a friend’s baby shower, baby-related expenses are predictable. Nursery furniture, a stroller, shower gifts, or just stocking up before the arrival — start the fund the moment you hear the news.
🎄 Holiday gifts — Christmas comes every December 25th without fail, yet somehow it surprises people every year. A holiday sinking fund built across 12 months eliminates the January credit card hangover entirely.
✈️ A planned vacation — if you know you’re going to the beach in July, start the fund in January. Flights, hotels, food, and activities should never land on a credit card.
🚗 Car maintenance and registration — tires wear out. Registration renews annually. Oil changes happen every few months. None of these are emergencies — they’re just irregular.
🏠 Home repairs and appliances — that aging water heater or washing machine on its last leg? Build a fund before it fails, not after. Or even saving up for property taxes if you pay them separately from your mortgage.
🐾 Pet care — annual vet visits, dental cleanings, and grooming are predictable. Budget for them in advance.
How to Build a Sinking Fund in Three Steps
It’s simpler than it sounds.
First, identify the expense and the total amount needed. If your friend’s wedding-related costs will run approximately $1,200, that’s your target.
Second, determine your timeline. If the wedding is six months away, divide $1,200 by six. You need to save $200 per month. [Formula: Total Expense expected divided by total number of months until expense = amount to save each month.]
Third, add that $200 as a dedicated line item in your EveryDollar budget — right alongside your rent, groceries, and utilities. Treat it like a bill you owe to your future self. Fund it first, right after payday, so it doesn’t disappear into discretionary spending by the end of the month.
Dave Ramsey recommends keeping sinking funds in a separate savings account so the money stays visible and protected. If it lives in your checking account alongside your everyday spending, it tends to quietly disappear.
Where Sinking Funds Fit in the Baby Steps
If you’re in Baby Steps 1–3, your primary focus is building your starter emergency fund, attacking debt, and then building your fully funded emergency fund. During this season, limit sinking funds to truly non-negotiable upcoming expenses. A wedding you’re in the wedding party for qualifies. A discretionary vacation probably doesn’t — at least not until you’re further along.
Once you’re in Baby Steps 4–7, sinking funds become one of the most powerful tools in your budget. They keep your lifestyle organized, prevent lifestyle creep, and ensure you’re never caught financially flat-footed by something you could have planned for.
The Bottom Line
A sinking fund doesn’t require extra income. It requires intention. It’s the difference between scrambling to cover a $1,200 expense in one month and comfortably paying it from a fund you’ve been quietly building all along.
Though if this sinking fund disrupts your Zero-Based budget, you may be required to cut other expenses or even pick up a short-term side hustle to make up the difference.
No stress. No credit card. No setback to your Baby Steps progress.
If you’re ready to build a budget that actually accounts for the real irregularities of your life, as a Ramsey Preferred Coach, I’d love to help you map it out.
Schedule a free coaching consultation: calendly.com/amber-otting/consultation, or visit my Dave Ramsey RPC Coaching page.
Bibliography: Ramsey Solutions. (2025, March 20). What is a sinking fund and how do you create one? https://www.ramseysolutions.com/saving/stop-the-panic-sinking-fund
Ramsey Solutions. (n.d.). The 7 Baby Steps. https://www.ramseysolutions.com/dave-ramsey-7-baby-steps
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