How to set up sinking funds — Aspire Budgeting

A sinking fund is money you set aside each month for a large expense you know is coming. Instead of scrambling when your annual car insurance bill arrives, you save 1/12 of it every month so the money is ready when you need it.

Setting up a sinking fund in Aspire

Step 1: Create the category

On the Configuration tab, add a new category (✧ Reportable or ※ Non-reportable, depending on whether you want it in reports).

Name it clearly: “Car Insurance” is better than “Sinking Fund 1.”

Step 2: Set the Monthly Amount

Divide the total expense by the number of months until it’s due.

Example: Car insurance is $1,200/year, due in December. If it’s June, you have 6 months. Monthly Amount = $200.

If you’re starting from scratch and the bill is due sooner than you can fully fund it, that’s fine — save what you can and cover the gap from other categories when it comes due. Next year you’ll have a full 12 months of saving.

Step 3: Set a Goal Amount (optional)

Set the Goal Amount on the Configuration tab to the total target (e.g., $1,200). The Dashboard will show a ⚑ icon and track your progress toward the goal visually.

Step 4: Fund it monthly

Each month when you do your category transfers, move the Monthly Amount into this category. The balance accumulates over time.

Step 5: Spend from it when the bill arrives

When the expense hits, log the transaction against this category like any other spending. The balance will drop — ideally to zero (or close to it) — and then you start saving again for next year.

Tips

Don’t treat sinking fund money as “available.” It’s earmarked for a specific purpose. If your emergency fund is empty and you’re eyeing your vacation sinking fund, resist — that money has a job.

Review sinking funds quarterly. Check whether your estimates are still accurate. Did car insurance go up? Adjust the Monthly Amount. Did you cancel a subscription? Repurpose that category.

Start with the expenses that surprise you most. If you always forget about annual subscriptions or holiday spending, those are your highest-value sinking funds to create first.

You don’t need a sinking fund for everything. Monthly bills (rent, utilities, internet) are regular enough to budget directly. Sinking funds are for things that come quarterly, annually, or unpredictably but inevitably.

Example: Holiday gifts

Total target: $600
Timeframe: Fund January through November (11 months)
Monthly Amount: $55
Goal Amount: $600
Category name: “Holiday Gifts”

By December, you’ll have $605 saved. Buy gifts guilt-free, log transactions against the category, and start over in January.