How to Calculate an Actual Business Use Percent


“Can I deduct a higher percentage than my Time-Space Percentage of the cost of my swing set? I can for five day care children and have one of my own. My Time-Space Percentage is 40%.”

The answer is yes.

How much of an item you can deduct in your family child care business depends on how much you use it in your business. If you don’t use an item for your business, you can’t deduct any of the cost. If you use an item 100% of the time for your business, you can deduct 100% of the cost.

What about when the item purchased is used personally as well as for your business?

The general answer is to use your Time-Space Percentage on such shared items to determine your business deduction. There are hundreds and hundreds of items that child care providers apply their Time-Space Percentage to: furniture, appliances, property tax, chairs, beds, cleaning supplies, toys, and so on.

Some of these shared items may be used less for your business than your Time-Space Percentage and some may be used more. But, IRS rules allow you to use your Time-Space Percentage rather than taking a lot of time to figure out the actual business use percent of each item.

However, you are not required to use your Time-Space Percentage on all your shared expenses.

If some items are used less than 100% for your business, but a lot more than your Time-Space Percentage, you can use an actual business use percent to determine your deduction. How do you calculate this?

Let’s look at the swing set example.

The best way to calculate your actual business use percent is to track the business use for one or two months. Your records show that your five day care children and your own child use the swing set one hour a day, five days a week. In addition, your own child use it two hours a week on weekends. So, there were 25 hours a week of business use (five day care children x one hour a day x five days) and 7 hours a week personal use, for a total of 32 hours a week. 25 divided by 32 = 78% business use.

If the swing set cost $1,000, you could deduct $780 of the cost.

It’s important to keep some records showing your actual business use. Don’t guestimate this. Try to track the actual use for at least a month (preferably two). It makes the most sense to use an actual business use percent for items that cost hundreds of dollars and are used a lot more than your Time-Space Percentage. Don’t try using an actual business use percent for your toilet paper!

You can use the Time-Space Percentage for most of your items and an actual business use percent for those selected items that are use heavily for your business.

Image credit:

6a0133f3fc5805970b01bb08151dd5970d-320wiFor more information on the actual business use percent and the Time-Space Percentage, see my book Family Child Care Record Keeping Guide.

Categories: Record Keeping & Taxes, Time-Space Percentage

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1 reply

  1. Hi Tom
    I have 2 time percentage questions…
    1. I started my daycare in September 2014 but spent the whole year preparing for opening and getting approved by the state. I used the whole 8760 hours for the year but should of only used 2928 hours?
    2. If a daycare closes for 3 months a year do they use the whole 8760 hours or a reduce hours for the months they took off? (Reason closed vary from Teacher schedule, lack of clients, medical / maternity leave or extended vacation)

    Thank you

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