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🧾 Starting a tax or bookkeeping practice

Four months of income, twelve months of costs — and the fix everyone eventually finds.

What the market is worth

US tax preparation services: $15.0B 2026 market size (IBISWorld)
The structural problem: Seasonality most revenue lands January–April against year-round overhead
The standard fix: Advisory & bookkeeping monthly recurring work is what turns a season into a business

How it actually grows

First season Returns from your own network

Friends, family and referrals, priced per return. Cheap to start and a genuine test of whether you enjoy the work under deadline pressure.

Watch out: Underpricing to win volume. Per-return pricing anchors low and is very hard to raise later.

Building the book Retention is everything

Tax clients are unusually loyal if handled well — a well-kept client returns for years. Acquisition cost is effectively paid once.

Watch out: Taking every complicated return for the fee. One badly-scoped complex client can consume a week of peak season.

Beating the season Add monthly bookkeeping

Bookkeeping and payroll turn four months of income into twelve. It also produces better tax outcomes, because you're not seeing the year for the first time in March.

Watch out: Bolting bookkeeping on without changing pricing. It's a service business, not a favour for tax clients.

Established firm Advisory, and pricing on value

Planning, entity structuring and CFO-style advisory earn multiples of compliance work. The shift is from charging for the form to charging for the outcome.

Watch out: Staying on hourly or per-form pricing as the work gets more valuable. It caps you at the number of hours you have.

What each revenue stream is good for

Revenue stream	Pays	Scales
Individual returns The entry point and the seasonal spike. Loyal, repeat, price-sensitive.	Modest each	Volume-based
Business returns Better fees and the natural doorway into monthly work.	Higher	Good
Monthly bookkeeping The single best fix for seasonality in this business.	Recurring	Excellent
Payroll services Extremely retentive — clients rarely move payroll providers.	Recurring, sticky	Excellent
Tax planning & advisory Value-priced rather than hourly. Where established firms actually earn.	Highest	Good
Representation / resolution Specialist, well-paid, and counter-seasonal to the filing rush.	High	Credential-limited

If you're starting this month

Price per return from your own time and risk, not from what the storefront down the road charges.
Offer monthly bookkeeping from your first season — it's how you avoid an eight-month income gap.
Track client retention year over year. In this business it's the number that compounds.
Cap how many complex returns you accept in peak season, deliberately and in advance.
Get errors-and-omissions cover before your first return, not after your first mistake.

Before you act on any of this

Paid preparers need a PTIN, and e-filing requires an EFIN. Representation before the IRS is limited to attorneys, CPAs and Enrolled Agents — unlicensed preparers have restricted rights even for returns they prepared. Several states impose their own registration or education requirements. Data-security obligations are real: the FTC Safeguards Rule requires a written information security plan for tax preparers, and a documented breach involving client tax data is a serious matter. E&O insurance is strongly advisable from day one. The 2026 filing season was the first with the 2025 law's new deductions (tips, overtime, car-loan interest and an extra $6,000 for people 65 and older), and the IRS's free Direct File was not offered that season.

Run this against real numbers → The same handbook inside the tool, on a worked example you can swap for your own spreadsheet. Free, no account.

Guides for this business

Accounting & tax firm KPIs: beating the seasonality trap →

The other 33 handbooks

Figures are sourced from published industry research (IBISWorld, trade associations and regulator data) and are stated with their year. They describe typical conditions, not your situation. This is general information for business owners, not financial, tax, or legal advice.