There's a certain irony in bookkeepers and solo accountants needing a guide to their own deductions — but running a one-person practice means wearing the client hat as often as the professional one. Here are the write-offs specific to this field.
Accounting software and client platforms
Subscriptions to bookkeeping and accounting platforms (used both for your own books and to service clients), tax preparation software, payroll processing tools, and secure document-sharing portals are all fully deductible. If you maintain multiple client licenses or seats on a platform, the entire cost is a business expense.
Professional liability insurance
Errors and omissions (E&O) insurance is close to essential for anyone handling other people's financial records, and premiums are fully deductible. The same is true of any professional indemnity or cyber-liability coverage protecting sensitive client financial data.
Continuing education and licensing
- Continuing professional education (CPE) credits required to maintain a CPA license or bookkeeping certification.
- Exam fees for credentials like the CPA, EA (Enrolled Agent), or QuickBooks ProAdvisor certification.
- State licensing and renewal fees.
- Professional association dues (AICPA, state CPA societies, bookkeeping associations).
Home office
| Method | How it works |
|---|---|
| Simplified method | $5 per square foot of dedicated office space, up to 300 sq. ft. |
| Regular method | Business-use percentage applied to actual mortgage/rent, utilities, insurance, and depreciation |
Full details, including which method typically produces a bigger deduction, are in our home office deduction guide for freelancers.
Client-related travel
Mileage to client offices for on-site bookkeeping or year-end meetings, along with travel to CPE conferences and industry events, is deductible. See our standard mileage rate vs. actual expenses guide for tracking rules.
Recordkeeping: practice what you advise
As the person who understands recordkeeping better than anyone, your own books should be the cleanest example in the building. Our general recordkeeping guide covers the retention periods and documentation standards the IRS expects — the same standards you likely already apply for clients.
Frequently asked questions
Can I deduct software I use exclusively for clients but not for my own books?
Yes — any software used to deliver client services is a business expense regardless of whether you personally use the same tool for your own bookkeeping.
Are seasonal tax-prep staff I hire deductible?
Yes, wages or contractor payments to seasonal help are deductible business expenses, and depending on their classification, may involve payroll tax responsibilities or a 1099-NEC filing.
Should I incorporate my practice or stay a sole proprietor?
It depends heavily on your profit level and how much you'd save on self-employment tax through an S-corp election — see our S-corp election guide for the break-even math.