Home Office Deduction Calculator
Free home office deduction calculator that compares the simple per-square-meter method with actual expenses and shows which saves more.
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What is Home Office Deduction Calculator?
The Home Office Deduction Calculator prices both standard methods on the same numbers: the actual-expense method applies your office share of the floor plan to a year of rent, utilities, insurance and maintenance, then adds workspace-only costs like equipment, while the simplified method multiplies the office area — up to its cap — by a flat rate per square meter. The verdict names the higher deduction and the exact difference, so claiming becomes a one-glance decision instead of two worksheets.
Key Benefits
- Both methods computed from one set of inputs
- Office percentage from real floor areas, not estimates
- Editable rate and cap to model different tax authorities
- Workspace-only costs added where they belong
- Copyable summary for tax records and accountants
Common Use Cases
- •Freelancers setting up a home workspace for the first time
- •Remote employees checking whether a deduction applies to them
- •Comparing a bigger office against the simplified area cap
- •Planning equipment purchases before the tax year ends
- •Preparing figures for an accountant or tax filing
How to Estimate the Home Office Deduction
- Measure the spaces: Enter the total home area and the area of the workspace used regularly and exclusively for work. The office share of the home comes straight from these two numbers.
- Add the shared monthly costs: Enter rent or mortgage interest, utilities, insurance and maintenance. The actual method applies the office share to a full year of these bills.
- Set the simplified parameters: Enter your tax authority rate per square meter and its area cap. The simplified deduction is the counted area times the rate, no receipts needed.
- Compare and file: The verdict names the higher deduction and the difference between methods. Copy the summary for your records and keep the floor plan and receipts for the method you claim.
Key Features
- Office share computed from home and office floor areas
- Actual method: rent, utilities, insurance, maintenance and equipment
- Simplified method with editable per-square-meter rate and cap
- Verdict with the difference between the two methods
- Copyable summary for tax files and accountants
Frequently Asked Questions
Which method gives the bigger deduction?
It depends on your numbers. The actual method wins when shared costs are high relative to your area and the office share is meaningful, because it claims a slice of real rent and utilities. The simplified method wins for expensive homes with small offices, or when you have no receipts — the verdict in the calculator shows the difference for your exact inputs instead of a general rule.
How is the office percentage computed?
Office area divided by total home area, using the floor measurements you enter. A 12 square meter office in an 80 square meter home is 15 percent. Tax authorities generally require the space to be used regularly and exclusively for work — a desk in the living room that the family uses at night usually does not qualify.
Can I use my own country rates?
Yes. The simplified method rate and area cap are editable fields, so you can enter the figures your tax authority publishes — for example a flat amount per square meter with a maximum area. The actual method needs no local constants, only your real bills.
Do equipment purchases count in both methods?
In this calculator, workspace-only costs such as equipment and furniture are added to the actual-method result, because they belong to the office regardless of the home share. The simplified method deliberately ignores them — that is its trade-off for not requiring receipts. Deducting equipment separately is often still allowed under the simplified method; confirm with your tax authority.