Quick Answer
Home security systems are generally NOT deductible for personal use, but may qualify if you use your home for business. Home office users can deduct the business percentage (typically 10-20%) of security system costs, potentially saving $120-240 annually on a $1,200 system.
Best Answer
Robert Kim, Tax Return Analyst
Best for people who work from home and can claim a home office deduction
Can you deduct home security system costs?
For most homeowners, home security systems are personal expenses and not tax-deductible. However, if you use part of your home for business purposes, you may be able to deduct a portion of your security system costs as a business expense.
How the home office deduction works for security systems
If you qualify for the home office deduction, you can deduct the business percentage of your security system costs. This includes:
Example calculation: If your home office takes up 15% of your home's square footage and you spend $1,200 annually on security (equipment + monitoring), you could deduct $180 (15% × $1,200) as a business expense.
Example: Freelance consultant's security deduction
Sarah runs a consulting business from her 200-square-foot home office in her 2,000-square-foot house:
Requirements to qualify
To deduct security system costs, you must:
What security expenses you can deduct
How to claim the deduction
You have two options:
1. Simplified method: Deduct $5 per square foot of home office space (max 300 sq ft = $1,500 deduction). This covers ALL home office expenses including security, utilities, repairs.
2. Actual expense method: Calculate the exact business percentage of each expense. Use this method if your actual expenses exceed the simplified method limit.
Special situations
Rental properties: If you rent out part of your home, security system costs are fully deductible as rental expenses on Schedule E.
Business security beyond home office: If you install additional security specifically for business assets (like a separate alarm for your workshop), those costs may be fully deductible.
What you should do
If you work from home:
1. Measure your home office space to calculate the business percentage
2. Keep receipts for all security system expenses
3. Document that your home office meets IRS requirements
4. Compare simplified vs. actual expense methods to see which saves more
Use our return scanner to check if you've been missing this deduction on past returns - you may be able to amend and claim refunds.
Key takeaway: Home security systems aren't deductible for personal use, but home office users can deduct 10-20% of costs (typically $120-240 annually), saving $30-70 in taxes depending on their bracket.
*Sources: [IRS Publication 587](https://www.irs.gov/pub/irs-pdf/p587.pdf), [IRS Form 8829 Instructions](https://www.irs.gov/pub/irs-pdf/i8829.pdf)*
Key Takeaway: Home office users can deduct the business percentage of security costs, typically saving $30-70 annually on a $1,200 system.
Tax treatment of security system costs by home use type
| Home Use Type | Deduction Percentage | Annual Savings (est.) | Where to Report |
|---|---|---|---|
| Personal residence only | 0% | $0 | Not deductible |
| Home office (10% of home) | 10% | $30-50 | Form 8829 |
| Home office (20% of home) | 20% | $60-100 | Form 8829 |
| Rental property | 100% | $200-400 | Schedule E |
More Perspectives
Diana Flores, Tax Credits & Amendments Specialist
Best for homeowners who don't work from home or run a business
Security systems as personal expenses
For most homeowners, security system costs are personal expenses that cannot be deducted on your tax return. The IRS considers home security a personal safety measure, similar to door locks or smoke detectors.
What this means for typical homeowners
Even though you might spend $600-1,500 annually on security systems, these costs don't qualify for tax deductions if they're protecting your personal residence:
Why security systems don't qualify
The IRS generally doesn't allow deductions for expenses that provide personal benefits, even if they also protect your property. Security systems fall into this category because they primarily serve personal safety rather than business purposes.
Exceptions to consider
While most homeowners can't deduct security costs, you might qualify if:
Alternative ways to save
Instead of tax deductions, consider:
Key takeaway: Regular homeowners cannot deduct personal security system costs, but may qualify for insurance discounts worth $100-300 annually instead.
Key Takeaway: Personal security systems aren't tax-deductible, but homeowners can often get insurance discounts worth $100-300 annually.
Robert Kim, Tax Return Analyst
Best for people who rent out part or all of their home
Security systems for rental properties
If you rent out part or all of your home, security system costs become legitimate business expenses that are fully deductible on Schedule E.
What qualifies as rental security expenses
Fully deductible for rental properties:
Example: Airbnb host deduction
Mike rents out his basement apartment through Airbnb:
Partial rental scenarios
If you rent out only part of your home, you can typically deduct 100% of security costs since the system protects the entire property and benefits your rental business.
Documentation requirements
Keep detailed records:
Report these expenses on Schedule E, Line 12 (Other expenses) with a description like "Security system."
Key takeaway: Rental property owners can deduct 100% of security system costs, potentially saving $200-400 annually in taxes compared to zero deductions for personal use.
Key Takeaway: Rental property owners can deduct 100% of security costs, saving $200-400 annually versus zero deductions for personal use.
Sources
- IRS Publication 587 — Business Use of Your Home
- IRS Form 8829 Instructions — Expenses for Business Use of Your Home
Reviewed by Robert Kim, Tax Return Analyst on February 28, 2026
This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.