Sinking Fund Categories: 47 Ideas and How to Size Each

The most useful sinking fund categories cover costs that arrive once or twice a year, or at random but every year: car insurance and repairs, home upkeep, the holidays, medical bills, pets, kids’ activities and gifts. Size each fund from its yearly cost, then start with the three to five that would otherwise land on a credit card. Below are 47 ideas grouped by area, five ways to size them and a worked example of choosing which to run first.

New to the idea? Start with what sinking funds are, which covers the formula, where to keep the money and a three-fund setup. This page is the list.

How to Size a Sinking Fund From Its Annual Cost

Every category below comes down to one question: what does this cost me in a year? Once you know that, the monthly amount is simple. Use whichever of these five methods fits. The figures are example numbers; use your own.

Method	Best for	Example	Monthly
Yearly cost ÷ 12	Fixed yearly bills	Registration, $180 a year	$15
(Cost minus saved) ÷ months left	Anything due within the year	Holidays, $900 with $200 saved and 7 months to go	$100
Last year’s spending ÷ 12	Costs that vary	Car repairs, $1,140 last year	$95
Price ÷ months of use	Things that wear out	Tires, $840 lasting about 4 years (48 months)	$18
Cost per event × events ÷ 12	Gifts and parties	9 birthdays at $40 each	$30

Your bank and card statements are the best source for the first three methods. Search the last 12 months for the category or the store, add up what you find, and you have a yearly cost.

For wear-out items, round up ($840 ÷ 48 = $17.50, so $18) and let the fund carry over from year to year. A tire fund can sit untouched for three years and still be doing its job.

Sinking Fund Categories List

Each idea comes with a hint for sizing it. You will not need all 47: mark the ones that apply to your household, then read the next section for how many to run at once.

Car and Transportation

• Car insurance, if you pay it yearly or every six months: premium ÷ months until it is due.
• Registration, inspection and emissions: last year’s renewal notice ÷ 12.
• Routine maintenance (oil changes, filters, wipers): last year’s receipts ÷ 12.
• Repairs: the last one or two years of repair bills, averaged per month.
• Tires and brakes: price ÷ expected months of use.
• Next car: your down payment target ÷ months until you plan to buy.
• Parking permit or annual transit pass: yearly cost ÷ 12.

Home

• Home repairs: last year’s repair spending ÷ 12, raised if something is clearly wearing out.
• Appliance replacement: price of the oldest appliance ÷ the months you expect it to last.
• Property taxes, if they are not paid through your mortgage: the bill ÷ months until due.
• Home or renters insurance, if paid yearly: premium ÷ 12.
• HOA dues billed yearly or quarterly, plus any assessment you have been warned about.
• Furniture and household items: a mattress, a couch, a vacuum.
• Seasonal upkeep: lawn care, snow removal, gutter cleaning, a furnace or AC service.
• Moving costs: truck, movers and a security deposit, if a move is on the horizon.

Holidays and Travel

• Winter holidays: gifts, food, decorations and travel, from last December’s statements.
• Vacation: trip cost ÷ months until you pay for it.
• Visiting family: flights or gas for the trips you make every year.
• Other holidays: costumes, hosting a holiday meal, spring baskets.
• Hosting guests: extra groceries and outings when family stays with you.

Health

• Deductible and copays: your plan’s deductible, or last year’s out-of-pocket total, ÷ 12.
• Dental: cleanings plus any work your dentist has flagged.
• Vision: exams, glasses and contacts.
• Prescriptions and pharmacy supplies that you buy in bulk.
• Counseling or therapy paid out of pocket.
• Fitness: an annual gym membership or sports gear.

Pets

• Annual vet visit and vaccines: last year’s bill.
• Pet emergencies: an ongoing monthly amount you keep paying in.
• Grooming, boarding and pet sitting: nights of boarding × trips a year × nightly rate.
• Licenses, insurance and yearly supplies: a new bed, a crate, flea and tick treatment.

Kids

• Back to school: clothes, supplies and fees, from last August’s statements.
• Activities and sports: registration, uniforms and equipment, season by season.
• Summer camp and childcare gaps: weeks × weekly cost.
• Birthday parties: one party budget per child per year.
• School trips, photos and yearbooks.
• Clothes and shoes as they grow: an amount per season.

The family budget guide goes deeper on childcare, activities and school costs.

Gifts

• Birthdays: people × amount per gift.
• Weddings, showers and graduations: events you expect × a typical gift.
• Anniversaries and parents’ days.
• Teachers, coaches and coworkers: end-of-year and holiday gifts.

Bills, Admin and Personal

• Annual subscriptions and memberships: software, a warehouse club, streaming paid yearly. Our guide on how to track subscriptions helps you find every one.
• Tax preparation fees: last year’s preparer or software cost.
• Professional licenses, dues and certifications.
• Phone and laptop replacement: price ÷ the months you expect it to last.
• Clothing: a yearly total split by season.
• Charitable giving you make in one lump sum.
• Courses and education.

Sinking Funds Examples: One Household’s List

Here is one household’s list after reading the categories above, sized with the methods from the table. These are example numbers.

Fund	Yearly cost	Monthly
Car insurance (annual premium)	$1,260	$105
Car repairs and maintenance	$960	$80
Registration	$180	$15
Holiday season	$900	$75
Birthdays and gifts	$360	$30
Vet visits	$420	$35
Home repairs	$1,200	$100
Vacation	$1,800	$150
Back to school	$480	$40
Electronics	$600	$50
Total	$8,160	$680

That is $680 a month, or about $314 per biweekly paycheck. Say this household has $300 a month to spare. It cannot fund all ten, and it does not need to on day one.

How Many Sinking Funds to Run at Once

Three to five is a good starting point. With fewer, the costs you skipped still land on a card. With many more, the plan either costs more than you have or spreads so thin that no fund is ready on time.

To choose, rank your list in this order:

1. Required and dated. Insurance, registration and property taxes are not optional and have a due date.
2. Anything that would go on a card. Car repairs and the holidays are common examples.
3. Big wants. A vacation or a new couch can wait a few months.
4. Then combine small, related funds. One “Car” fund covering insurance, repairs and registration is $105 + $80 + $15 = $200 a month and one line to track.

For the household above, the Car fund ($200) plus the Holiday season ($75) comes to $275, leaving $25 of the $300. That $25 can start the vet fund now, $10 short of its $35 target, and the rest of the list waits until a raise, a paid-off debt or a finished fund frees up room. Each time a dated fund reaches its goal and the bill is paid, look at whether its monthly amount can drop, and move the difference to the next fund on your list.

Keep all of them in one place so you can see which are on schedule. The sinking funds tracker shows the goal, monthly goal, months left and an estimated finish date for each fund. The funds you pick also belong in your budget categories as savings lines, so each month’s plan sets the money aside before it is spent.

Before you close this page, circle the one category that caught you off guard last year. That is your first fund.