Home Office Deduction Calculator 2026 | TheAccountant.Tax
Built for the 2026 tax year · Calculate the amount now, not after year-end.
CPA-built tax software for business owners

Your home office could be worth more than $1,500.

Compare the simplified method with your actual home costs. If you own an S-corp, see what the company can reimburse you — then build the workpapers and accountable-plan file to support it.

Free estimate. No credit card required to see the initial calculation.

Simplified vs. actual Schedule C + S-corp paths Workpapers + plan documents
theaccountant.tax / home-office

Home Office Reimbursement

2026 · S-corporation owner-employee

Ready
Actual method $3,600
Simplified method $1,000
Business-use percentage10.0%
Annual reimbursement$3,600
Monthly reimbursement$300
Support package4 documents
Generate workpapers & plan
What this tool actually solves From “I think I can write this off” to a number and a file.
For Schedule C Compare both methods.
For S-corp owners Calculate reimbursement.
For your records Generate the support.

One office. Two tax paths.

The right answer depends on how your business is taxed.

Most online advice collapses the home-office question into one rule. The software starts with your entity type so it can send you down the correct path.

SELF-EMPLOYED / SCHEDULE C

You want the deduction.

Measure the space, enter your home costs, and compare simplified versus actual expenses.

  • Business-use percentage
  • Simplified vs. actual comparison
  • Calculation workpaper

The expensive mistake

Moving money from the business account does not automatically make it a tax-free reimbursement.

A round-number “office stipend” without a calculation or substantiation is a different story from a reimbursement backed by business-use math and supporting records.

Guessing: “I use about 20% of the house.”
Defaulting: “I’ll just use the $5-per-square-foot method.”
Reimbursing: “I transfer $500 every month and call it office expense.”

The product

It does more than produce a tax number.

01

Calculate

Turn square footage and actual home costs into a defensible business-use amount.

02

Choose the path

See whether you are dealing with a Schedule C deduction or an employer reimbursement.

03

Document it

Create the workpapers and supporting plan documents so your tax professional receives a file, not a guess.

Try the math

See the number before you sign up.

This preview intentionally stays simple. The full tool handles qualification questions, additional expense categories, documentation, and the reimbursement workflow.

Home office estimate

Use annual figures. You can refine the details in the full tool.

Actual method $3,600
Simplified method $1,000

Actual is $2,600 higher on these inputs.

Preview only. Final treatment depends on qualification, entity type, and supporting facts.

How it works

From room measurement to reimbursement file.

STEP 01

Measure the space

Enter your office square footage and total home square footage.

STEP 02

Add the costs

Enter the home expenses used in the calculation.

STEP 03

See the result

Compare methods or calculate the employer reimbursement.

STEP 04

Build the file

Generate the supporting workpaper and plan documents.

Questions

Before you run it.

Keep the page useful for search traffic without making buyers read an article before they understand the product.

Can I take a home office deduction in 2026?

Self-employed taxpayers may qualify when the space meets the applicable business-use requirements. The full tool walks through the qualification questions and compares calculation methods.

I own an S-corp. Is this still for me?

Yes. The software is designed to separate the Schedule C deduction path from the owner-employee reimbursement path and calculate the amount based on the facts you enter.

What does the accountable-plan portion do?

It helps organize the reimbursement calculation and supporting documentation into a repeatable process instead of relying on undocumented transfers from the business account.

Does this replace my CPA?

No. The software is designed to produce the calculation and documentation your tax professional can review. Unique or unusual facts still require professional judgment.

Do I have to pay before I see anything?

No. This page can show the initial comparison first. The full software is where qualification testing, detailed inputs, saved records, reports, and plan documents live.

Know the number. Keep the file.

Stop treating your home office like a tax-season guess.

Run the calculation while the year is still open. If your business needs to reimburse you, build the documentation at the same time.