Free Tool
Sinking Fund Calculator
Plan every irregular expense in one place. Add your funds — car, home, Christmas, insurance — and see exactly how much to set aside each month, with data-backed defaults for what each one typically costs.
Set aside each month
$625.00
across 5 funds · $6,500/yr total
Heads up: 1 fund is behind pace for their target date. A money app that tracks your real balances catches this automatically.
Your year ahead
When each expense actually lands — so the lumpy months never surprise you.
Your heaviest month is Dec (~$1,000 due). Saving monthly smooths these spikes so none of them blindside you.
Suggested: The average household spends ~$1,000/yr on vehicle upkeep and repairs. (BLS Consumer Expenditure Survey 2024 / AAA)
Suggested: The standard rule is ~1% of your home's value per year. Add your state for a local figure. (1% rule (Zillow ZHVI median home value))
Suggested: Typical household holiday gift spending is ~$1,000 (a rule of thumb is ~1.5% of income). (Gallup / NRF holiday spending surveys)
Behind pace — due Dec 2026, $1,000 to go
Suggested: Covers deductibles, copays, dental, and vision you pay out of pocket. (Out-of-pocket / deductible estimate)
How much should each sinking fund be?
The hardest part of sinking funds is knowing how much to save for things you can't easily look up. These are research-backed starting points the calculator seeds for you — edit any of them to fit your life. Set your state above and the location-specific ones update to local figures.
| Fund | Typical amount / year | Based on |
|---|---|---|
| 🏠 Home maintenance | $3,000 | 1% rule (Zillow ZHVI median home value) |
| 🔧 Car maintenance & repairs | $1,000 | BLS Consumer Expenditure Survey 2024 / AAA |
| 🎄 Christmas & gifts | $1,000 | Gallup / NRF holiday spending surveys |
| 🚗 Car insurance | $2,100 | Insurify 2025 full-coverage average |
| 🧾 Property taxes | $2,500 | Census ACS 2024 median real-estate taxes |
| 🛡️ Homeowners insurance | $2,300 | MoneyGeek 2026 average premium |
| 🩺 Medical & dental | $1,500 | Out-of-pocket / deductible estimate |
| 🐾 Pet care | $1,700 | APPA / industry pet-cost surveys |
| 🔁 Annual subscriptions | $600 | Estimate |
Vacation and "next car" amounts depend entirely on your plans, so the calculator lets you set those directly.
Car maintenance: the fund everyone forgets
Car maintenance is the single hardest sinking fund to size, because the costs are lumpy — nothing for months, then $900 for tires and brakes in one visit. A reasonable starting point is about $1,000 per year for routine upkeep plus the occasional repair, based on AAA and BLS Consumer Expenditure data. Older or higher-mileage vehicles should budget more. The point isn't precision — it's having something set aside so the next repair isn't a credit-card emergency.
Home maintenance: the 1% rule
The most widely used guideline is to save about 1% of your home's value per year for maintenance and repairs — roughly $3,000 on a $300,000 home. An alternative is about $1 per square foot per year. Newer homes often land at the low end; homes built before the 1970s can run 2–4%. Because home values vary so much by location, this calculator uses the typical home value in your state (when you set it) to seed a realistic local figure instead of a generic guess.
Sinking fund vs. emergency fund
These get confused constantly, but the line is simple. A sinking fund is for expenses you can see coming — Christmas, insurance premiums, property taxes, a planned trip. An emergency fund is for things you can't predict — a job loss, a medical emergency, a furnace that dies without warning. If you can see it on the calendar, it belongs in a sinking fund; if you can't, that's what your emergency fund is for. Most people need both.
Where to keep your sinking funds
The most common setup is a single high-yield savings account that supports labeled buckets or sub-accounts, so all your funds live in one place but stay mentally separate. Keeping the money out of checking makes it less tempting to spend, and it earns interest while it waits. The downside of doing this by hand is the tracking — every contribution and withdrawal is manual, which is exactly where most spreadsheet systems fall apart.
Sinking fund calculator FAQ
What is a sinking fund? ▶
A sinking fund is money you set aside a little at a time for a known, irregular expense you can see coming — like Christmas, car maintenance, insurance premiums, or property taxes. Instead of being blindsided by a big bill, you save toward it monthly so the cash is ready when the expense arrives.
What is the difference between a sinking fund and an emergency fund? ▶
A sinking fund is for expenses you know are coming and can plan for (a planned, predictable cost). An emergency fund is for genuinely unexpected events you can't predict — a job loss, a medical emergency, a surprise major repair. Rule of thumb: if you can see it coming, it gets a sinking fund; if you can't, that's what the emergency fund is for.
How many sinking funds should I have? ▶
Most people do best starting with three to five sinking funds and adding more once the habit feels automatic. Picking too many at once is the most common reason people give up. If you have lots of small categories, combine related ones — for example, a single 'Gifts' fund instead of separate birthday, holiday, and wedding funds.
How much should I put in a car maintenance sinking fund? ▶
A common benchmark is about $1,000 per year (roughly $80–$100 per month) for routine maintenance plus the occasional repair, based on AAA and BLS Consumer Expenditure data. Older or higher-mileage vehicles run higher. This is one of the most-forgotten sinking funds, so even a modest monthly amount beats nothing.
How much should I budget for home maintenance and repairs? ▶
The standard rule is about 1% of your home's value per year — so roughly $3,000/year on a $300,000 home. An alternative is about $1 per square foot per year. Older homes tend toward the higher end (2–4%). Set your state in the calculator to seed this from the typical local home value automatically.
Where should I keep my sinking funds? ▶
Most people keep sinking funds in a high-yield savings account, ideally one that supports labeled buckets or sub-accounts (like Ally, SoFi, or Capital One) so several funds can live in one account. Keeping the money slightly separate from checking makes it less tempting to spend and lets it earn interest while it waits.
How do you calculate a sinking fund? ▶
Take the total amount you'll need, subtract what you've already saved, and divide by the number of months until you need it. For example, $1,200 for Christmas in 12 months with nothing saved is $100/month. This calculator does that for all your funds at once and shows the combined monthly total, plus when each one comes due.
How much should I save for Christmas? ▶
Holiday spending surveys put typical household gift spending around $1,000, and closer to $1,500 once you include travel, food, and decorations. A simple rule of thumb is about 1.5% of your gross income. Starting in January, $1,000 by December is roughly $85/month — far easier than putting it on a card.