How to choose an accounting firm

Two firms can both call themselves accounting firms and sell almost nothing in common. One prepares tax returns once a year. Another closes your books every month and never signs a return. A third builds your forecast and sits in your board meetings.

Before you talk to anyone, write down the jobs you want off your plate. Most businesses end up with some mix of these: keeping the books current each month, preparing the federal and state tax returns, handling payroll accounting and the filings that come with it, tracking sales tax, responding to notices, and producing reports someone can make decisions from. The firm that fits is the one that owns the jobs you listed and is honest about the ones it does not.

Tax-led CPA firms are strongest at returns, planning, and representing you with the IRS. Their work peaks between January and April, and the monthly books are sometimes a lighter offering. They suit businesses with simple books and complicated tax situations.

Bookkeeping services keep the ledger current: categorizing transactions, reconciling accounts, and producing monthly statements. Many do not prepare or sign tax returns, so you may still need a separate preparer.

Outsourced accounting firms, sometimes called virtual accounting departments, combine bookkeeping, a controller who reviews the close, and tax work under one engagement. They tend to cost more than a bookkeeper alone and replace the need for a part-time employee plus a CPA.

Fractional CFO and advisory firms build budgets, forecasts, cash plans, and investor or board reporting. They depend on clean books, so they usually work alongside one of the firms above rather than instead of it.

Project-based businesses such as contractors, agencies, and engineering firms need job or project costing, billing that follows progress, and an understanding of retainage and work in progress. Ask the firm to show you a project margin report from another client, with the names removed.

Businesses that carry inventory, including ecommerce brands and wholesalers, need inventory costing that matches how you buy and sell, plus the discipline to reconcile marketplace payouts net of fees and refunds. A firm that records deposits as revenue will understate both sales and costs.

Subscription and software companies need revenue recognition that respects the service period, deferred revenue for annual prepayments, and reporting that investors recognize. Accrual accounting is usually expected once outside money is involved.

Venture-backed startups need accrual books, a clean cap table, coordination with whoever does the 409A valuation, R&D credit support, and the ability to answer diligence questions without a scramble. Ask how many funded companies the firm supports and how it prepares for a financing.

Practices and regulated businesses such as law firms, medical offices, and nonprofits have rules about client funds, patient receivables, insurance payments, or restricted grants. The firm should be able to explain how it keeps those apart from operating money.

Companies with more than one entity, foreign owners, or workers in several states add intercompany balances, foreign-owner filings, and multi-state registration to the list. Ask who tracks those obligations, because they rarely appear in a standard package.

A short call usually reveals more than a long proposal. These questions get specific answers from firms that do the work and vague ones from firms that do not.

Put every proposal into the same grid. List each recurring job down the left side, and mark it as included, an add-on, something you keep, or not offered. A proposal that does not mention a job has not promised it.

Then look at what the monthly fee leaves out. Common exclusions are cleanup of earlier months, additional entities or states, payroll accounting, tax return preparation, extensions, responding to notices, sales tax filings, and advisory calls. Ask for a first-year total and a steady-state annual total as separate numbers, because onboarding and catch-up work can make the first year noticeably more expensive.

Pricing models differ too. Some firms charge a flat monthly fee. Others scale with monthly spending or transaction count. Some bill hourly for advisory work. A low entry price tied to a narrow scope is not cheaper than a higher price that covers what you need.

Ask for a sample monthly package with client details removed: the profit and loss statement, balance sheet, and a short note on open items. You can learn a lot from whether the balance sheet looks reviewed or merely generated.

If you can, run a one-month paid trial or start with a defined cleanup project before signing a year-long engagement. Speak to a reference with a similar business, and ask how the firm behaves when something goes wrong, not only when everything goes well.

Be cautious about any firm that cannot tell you who reviews its work, quotes only after several calls, keeps your books in a system you cannot access, or promises a refund or deduction before it has seen your records. Guaranteed outcomes are a bad sign in tax work in particular, and the IRS advises taxpayers to be careful with preparers who base their fee on a percentage of the refund.

Institution offers bookkeeping, tax, and compliance work, so we are not a neutral party here. These questions work the same way for any firm, including us.