The Cost of Running an Accounting Firm in the US
The cost of running an accounting firm is dominated by people, then software, then insurance, licensing and premises. For most US firms staff compensation is the largest line by a wide margin, and software is a single-digit percentage of revenue. The ranges below are estimates to model against, not quotes.
The cost of running an accounting firm is dominated by people, then software, then insurance, licensing and premises. For most US firms staff compensation is the largest line by a wide margin, and software is a single-digit percentage of revenue. The ranges below are estimates to model against, not quotes.
Last updated: September 2026
Why most cost models are wrong on the first attempt
Firm owners tend to model the visible costs — rent, software subscriptions, the insurance renewal — and underestimate the two that actually move the number: total compensation including payroll taxes and benefits, and the cost of unbilled time.
Unbilled time does not appear on any invoice from a vendor, which is exactly why it goes unmodeled. Time spent chasing documents, rekeying data between systems and reconstructing the status of a job is real cost carried by the most expensive people in the firm.
Every figure in this guide is a planning estimate. Costs vary enormously by state, city, firm size and service mix, so treat the ranges as a starting structure and replace each one with your own quotes.
The main cost lines
Structure to model against. All figures are estimates, not quotes.
| Cost line | Typical driver | How to estimate it |
|---|---|---|
| Staff compensation | Headcount and seniority mix | Salary plus employer payroll taxes, benefits and paid time off; usually the largest line by far. |
| Seasonal and contract labor | Peak season volume | Hourly rate times projected season hours; model the peak, not the average. |
| Tax and accounting software | Returns filed, entities served | Per-return or per-entity vendor quotes; get current pricing directly. |
| Practice management software | Clients or users, depending on vendor | Remindoo is $0.90 to $1.00 per client per month with unlimited seats; most alternatives price per user, per month. |
| Professional liability insurance | Revenue, services offered, claims history | Quote from a broker who writes accountants' E&O; advisory work changes the premium. |
| Licensing, CPE and memberships | Licensed staff count | State board renewal plus CPE hours plus any association dues. |
| Premises and utilities | Square footage or fully remote | Fully remote firms replace this with a stipend and a mail service. |
| Marketing and business development | Growth ambition | Website, directory listings and referral costs; usually a small percentage of revenue. |
Last updated: September 2026. Confirm every figure with your own vendors, broker and state board.
How software pricing models change the total
Software is rarely the biggest line, but the pricing model decides how it behaves when the firm changes shape. Per-user pricing scales with headcount, so a firm that doubles its team for ten weeks of the year pays for that peak, and the bill arrives at the tightest point of the cash cycle.
Per-client pricing scales with the book of business instead. Remindoo charges per client with unlimited seats, so adding a seasonal preparer, a reviewer or offshore staff changes nothing about the bill.
Neither model is universally cheaper. A stable ten-person firm with 2,000 clients may well pay less per user. The point is to run the comparison at your peak headcount and your real client count, not at an average that describes no month of your year.
Costs owners commonly forget
- Employer payroll taxes and benefits on top of headline salaries.
- The second seat of tax software nobody planned for in February.
- Payment processing fees on client card and ACH payments.
- Data retention and secure destruction of old client records.
- The owner's own compensation, modeled as a real cost rather than what is left over.
- Time lost to work happening outside the firm's systems.
Work the numbers with us
Bring your client count, your peak headcount and your current software bill. We will be straightforward if a per-user platform comes out cheaper for your shape of firm.
Frequently asked questions
What is the biggest cost in an accounting firm?
People, in almost every firm. Total compensation including payroll taxes and benefits dominates the model, which is why capacity and utilization reporting affects profitability more than any subscription decision.
How much should a firm spend on software?
There is no credible universal percentage, and quoting one would be inventing a statistic. Model your actual vendor quotes at peak headcount and compare that against the unbilled hours the tooling removes.
Is practice management software worth it for a solo firm?
It depends on whether you can reliably answer what is due this week and what is outstanding with each client. Solo firms that can answer both from memory usually wait; those who cannot generally stop losing evenings to reconstruction.
How do seasonal staff affect the cost model?
They affect compensation, and on per-user software they affect the subscription too. Model both at peak. Remindoo's per-client pricing leaves the software line flat regardless of headcount.
Do these figures include tax preparation software?
No. Tax software is priced per return or per entity by its own vendors and should be quoted directly. Remindoo is practice management software and does not prepare or file returns.
Model your software line properly
Bring your client count and peak headcount and we will work the per-client versus per-user math with you.