Home Office Deduction
Calculator
Results
- Office share of home (%)
- 12
- Deduction amount
- 2,160
- Monthly deduction
- 180
Tax and payroll results
| Office share of home (%) | 12 |
| Deduction amount | 2,160 |
| Monthly deduction | 180 |
formula-map diagram
- Office share of home (%)
- 12
- Deduction amount
- 2,160
- Monthly deduction
- 180
Pay and tax relationship
Formula
deduction = (office area ÷ home area) × annual home costs= 12
Note
This is generic arithmetic using the rates you entered, not tax advice. No statutory rate, bracket, threshold or exemption is built in. Your real liability depends on your jurisdiction, tax year and personal circumstances; confirm with an official source or a qualified professional.
More in Tax and payroll
See all →Frequently asked questions
How does this calculator estimate a home office deduction?+
It typically applies the percentage of your home used exclusively for business (based on square footage) to your eligible home expenses, or uses a simplified flat rate per square foot, depending on the deduction method available in your jurisdiction.
What does 'exclusive use' mean for a home office, and why does it matter?+
Many tax systems require the space to be used exclusively and regularly for business, not as a shared family space that's occasionally used for work — a spare bedroom used only as an office generally qualifies, but a kitchen table used for both meals and work typically does not.
What's the difference between the simplified method and the actual expense method?+
The simplified method applies a flat rate per square foot of qualifying office space up to a maximum, requiring minimal recordkeeping, while the actual expense method requires calculating the business-use percentage of your actual home expenses (rent/mortgage interest, utilities, insurance, depreciation), which can yield a larger deduction but requires more detailed records.
Does the size of my home office affect the deduction amount?+
Yes, significantly — the deduction is generally proportional to the percentage of your home's total square footage used for the office, whether calculated through the simplified per-square-foot method or as a percentage applied to actual home expenses.
Can employees who work from home claim this deduction, or only self-employed people?+
Eligibility rules vary significantly by jurisdiction and have changed over time — in some tax systems, this deduction is currently limited to self-employed individuals or small business owners, while regular employees working from home may not qualify even if they have a dedicated office space. Check current rules for your specific situation.