Cell & Internet Write-Offs for Landlords
Landlords: learn how to deduct the business portion of your cell phone and internet bills. Step-by-step guide with examples, timelines, and dollar figures.

- Landlords can deduct the business-use portion of their cell phone and internet expenses.
- The IRS requires a reasonable method to determine the business-use percentage.
- Documenting expenses and maintaining records is crucial for substantiation.
- Landlords should review their deduction strategies annually to maximize savings.
Understanding the Business-Use Split
As a landlord, you likely use your cell phone and internet for both personal and business purposes. The IRS allows you to deduct the portion of these expenses that is used for business. To do this, you need to determine the business-use percentage of your cell phone and internet expenses.
The first step is to track your usage. For your cell phone, this could mean tracking the minutes, texts, and data used for business purposes. For example, if you spend 1 hour each day on the phone with tenants, contractors, or property managers, that's a good starting point. For your internet, you might track the bandwidth used for business activities such as marketing, managing tenant records, or coordinating maintenance. Tools like TenantFlow can help you organize and manage these activities efficiently, making it easier to track your business usage.
Once you have tracked your usage, you can calculate the business-use percentage. For example, if you use your cell phone for business 30% of the time, you can deduct 30% of your cell phone bill. Similarly, if you use your internet for business 40% of the time, you can deduct 40% of your internet bill. Let's say your monthly cell phone bill is $80. If you use it for business 30% of the time, your monthly deduction would be $24. Over a year, that's $288.
It's important to note that the IRS requires a reasonable method for determining the business-use percentage. This could be based on time, usage, or another reasonable basis. You should choose a method that accurately reflects your actual business use and be consistent in applying it.
Common Methods for Determining Business-Use Percentage
There are several methods you can use to determine your business-use percentage. One common method is the time-based method, where you track the amount of time you use your cell phone and internet for business purposes. For example, if you spend 2 hours each day on your cell phone for business and 6 hours for personal use, your business-use percentage would be approximately 25%.
Another method is the usage-based method, where you track the number of calls, texts, or data used for business purposes. For example, if you make 200 business calls and 800 personal calls in a month, your business-use percentage would be approximately 20%. Similarly, you can track the bandwidth used for business activities to determine your internet business-use percentage.
You can also use a simplified method, such as deducting a flat percentage based on your overall business use. For example, if you spend 40% of your time working on your rental properties, you might deduct 40% of your cell phone and internet expenses. However, this method may not be as accurate as the time-based or usage-based methods.
Documenting Your Expenses
Documentation is crucial for substantiating your deductions. The IRS recommends that you keep records that support your business-use percentage. This could include logs of your cell phone and internet usage, invoices, receipts, and any other relevant documents.
For your cell phone, you might keep a log of business calls, texts, and data usage. This could be as simple as a spreadsheet or notebook where you record the date, time, and purpose of each business use. For your internet, you might track the bandwidth used for business activities, such as uploading maintenance records or drafting leases. You can use tools like TenantFlow to store these documents in the document vault for easy access and organization.
You should also keep copies of your cell phone and internet bills. These will provide evidence of the total amount you spent on these services. It's a good idea to keep these records for at least three years, as the IRS may audit your tax returns within this period.
Calculating Your Deduction
Once you have determined your business-use percentage and documented your expenses, you can calculate your deduction. To do this, multiply the total amount of your cell phone and internet bills by your business-use percentage.
For example, if your total cell phone bill for the year is $1,200 and you use it for business 30% of the time, your deduction would be $360. Similarly, if your total internet bill for the year is $1,500 and you use it for business 40% of the time, your deduction would be $600.
Remember to review your deduction strategy annually. Your business-use percentage may change over time, so it's important to recalculate your deduction each year. You might also consider consulting with a tax professional to ensure that you are maximizing your deductions and staying compliant with IRS rules.
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Maximizing Your Deductions
To maximize your deductions, consider using dedicated business accounts for your cell phone and internet. This can make it easier to track your business usage and substantiate your deductions. You might also consider using separate devices for personal and business use, if possible.
You can also maximize your deductions by taking advantage of other landlord tax deductions. For example, you might be able to deduct the cost of supplies see our guide on De Minimis Rule for Landlords: Deduct Supplies), software subscriptions see our guide on Deducting Software Subscriptions: Landlord Tax Guide, and leasing fees see our guide on Maximize Deductions: Leasing Fees on Schedule E.
Another way to maximize your deductions is to bundle your business expenses. For example, if you use your cell phone and internet for both personal and business purposes, consider bundling these expenses with other business expenses, such as travel see our guide on Landlord Travel Deductions or legal fees see our guide on Landlord's Guide to Eviction Costs: Tax Deductible or Not?. This can help you maximize your deductions and reduce your taxable income.
State-Specific Considerations
While the federal tax rules for deducting cell phone and internet expenses are generally consistent across the country, state tax rules may vary. Some states have different rules for deducting business expenses, so it's important to research the specific rules in your state.
You can find information about state tax rules on your state's department of revenue website. You might also consider consulting with a tax professional who is familiar with the specific rules in your state.
For example, some states may require you to file a separate form for deducting business expenses. Others may have different rules for determining the business-use percentage. It's important to understand these rules and comply with them to avoid penalties or audits.
Common Mistakes to Avoid
One common mistake is underestimating your business-use percentage. It's important to accurately track your usage and choose a reasonable method for determining your business-use percentage. Underestimating this can lead to missed deductions and higher taxes.
Another common mistake is failing to document your expenses. The IRS requires that you keep records to support your deductions. Without proper documentation, you may not be able to substantiate your deductions if you are audited. This could result in penalties or additional taxes.
Finally, be consistent in applying your method for determining the business-use percentage. The IRS prefers that you use a consistent method from year to year. Changing your method frequently can raise red flags and lead to scrutiny from the IRS.
Reviewing Your Deduction Strategy Annually
It's important to review your deduction strategy annually. Your business-use percentage may change over time, so it's important to recalculate your deduction each year. You might also consider consulting with a tax professional to ensure that you are maximizing your deductions and staying compliant with IRS rules.
For example, if you recently acquired additional rental properties, your business-use percentage may have increased. Similarly, if you have reduced your rental portfolio, your business-use percentage may have decreased. It's important to adjust your deduction strategy accordingly.
You should also review your documentation and records annually. Make sure that you have kept accurate logs of your cell phone and internet usage, as well as copies of your bills. This will help you substantiate your deductions if you are audited.
FAQ
How do I track my cell phone and internet usage for business purposes?
You can track your cell phone and internet usage by keeping a log of business calls, texts, data usage, and bandwidth. This could be as simple as a spreadsheet or notebook where you record the date, time, and purpose of each business use. You can also use apps or software to track your usage automatically.
What is a reasonable method for determining the business-use percentage?
A reasonable method for determining the business-use percentage could be based on time, usage, or another reasonable basis. For example, you might track the percentage of your cell phone minutes used for business calls or the percentage of your internet bandwidth used for business activities. The key is to choose a method that accurately reflects your actual business use and be consistent in applying it.
How long should I keep my records?
The IRS recommends that you keep your records for at least three years. However, it's a good idea to keep them for longer, especially if you own property or have significant deductions. This will help you substantiate your deductions if you are audited.
Can I deduct the entire cost of my cell phone and internet if I use them exclusively for business?
If you use your cell phone and internet exclusively for business, you can deduct the entire cost of these services. However, this is rare and the IRS may scrutinize such deductions closely. You should be prepared to substantiate your claim with detailed records and documentation, showing that you use these services solely for business purposes.
What if I use my cell phone and internet for both personal and business purposes?
If you use your cell phone and internet for both personal and business purposes, you can only deduct the portion of the expenses that is used for business. The IRS requires a reasonable method for determining the business-use percentage, and you should keep records to support your deduction. This could include logs of your usage, invoices, receipts, and any other relevant documents.
How do I handle cell phone and internet expenses for multiple rental properties?
If you own multiple rental properties, you can still deduct the business-use portion of your cell phone and internet expenses. You should track your usage for each property separately, if possible, to determine the business-use percentage for each. You can then calculate your deduction based on the total amount of your expenses and the business-use percentage for each property.
What if I have employees or contractors who use their cell phones and internet for business purposes?
If you have employees or contractors who use their cell phones and internet for business purposes, you can reimburse them for the business-use portion of their expenses. This can help you avoid paying taxes on these expenses as part of their wages. However, you should consult with a tax professional to ensure that you are complying with all relevant rules and regulations.
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