Is a Phone Tax Deductible?

Quick Answer: ✅ Yes — a cell phone used for business is deductible. If it's your only phone and you also use it personally, you deduct the business-use percentage of the purchase price.

The Short Answer

Your smartphone is probably essential to your business — calls, emails, Slack, invoicing, banking, GPS navigation to job sites. The IRS lets you deduct the cost of the phone itself (the device) as a business expense. If you use one phone for both business and personal, you'll need to estimate the business-use percentage and deduct that portion. A second phone used exclusively for business is 100% deductible.

IRS Rules for Deducting a Phone

Since 2010, cell phones are no longer classified as listed property (the Small Business Jobs Act removed them). This means:

1. No 50% business-use threshold — Unlike laptops, you don't need to prove more than 50% business use to take the deduction. Any legitimate business-use percentage works.
2. Section 179 or de minimis — You can expense the phone in full in year one using Section 179, or use the de minimis safe harbor for phones under $2,500 (which covers virtually all phones).
3. Mixed use requires proration — If you use one phone for everything, estimate your business-use percentage honestly.

Source: IRS Publication 535 — Business Expenses; Small Business Jobs Act of 2010

One Phone vs. Two Phones

Single phone (business + personal):

• Estimate business-use percentage (many self-employed people use 60-80%)
• Deduct that percentage of the device cost
• Simpler, but requires a reasonable estimate

Dedicated business phone:

• 100% deductible — device and all costs
• Easier to defend in an audit
• Consider a separate line or eSIM for business

How Much Can You Deduct?

Example — Dedicated business phone:

You buy an iPhone for $1,200 exclusively for business. Deduction: $1,200.

Example — Mixed-use phone:

Same $1,200 phone, used 75% for business.

• Deductible: $1,200 × 75% = $900

Don't forget accessories: Cases, screen protectors, chargers, and car mounts bought for business use are also deductible (same business-use percentage applies if mixed use).

How to Categorize in QuickBooks

• QBO Category: "Computer & Internet Expenses" or "Office Equipment" (under Expenses)
• Schedule C Line: Line 27a — Other Expenses (phone/communication) or Line 13 if using Section 179/depreciation
• Tip: Most phones are under $2,500, so the de minimis safe harbor applies — expense it directly without depreciation forms. Categorize as "Communication Equipment" or a similar sub-account.

Common Mistakes to Avoid

1. Claiming 100% business use on your only phone — If it's also your personal phone (texts to friends, social media, personal calls), claiming 100% is aggressive. A reasonable estimate like 70-80% is more defensible.
2. Confusing the phone with the phone bill — The device cost and the monthly service bill are separate deductions. This page covers the device; see our cell phone bill page for the monthly plan.
3. Forgetting trade-in value — If you traded in an old phone and got $500 off, your deductible cost is the net amount you paid, not the full retail price.
4. Skipping phone upgrades — Every time you buy a new phone for business, it's a new deduction. Annual upgrades = annual write-offs.

Record-Keeping Requirements

• Purchase receipt showing device, date, and price paid (net of trade-in)
• Documentation of business-use percentage
• If employer-provided (S-Corp): accountable plan records
• Bank/credit card statement confirming the purchase

Who Can Deduct a Phone?

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