How to Start an Accounting Firm in 2026: Licensing, Setup, and First Clients

Most people who start an accounting firm are excellent at accounting and unprepared for the firm. The technical work — the returns, the closes, the reconciliations — is the part you have done for years. The firm is a different animal: it has to find clients, sign engagements, price the work so it is profitable, deliver it during a busy season that compresses half your revenue into ten weeks, and collect the money. New firm owners pour everything into the technical work and assume the business runs itself. It does not.

There is also a licensing question sitting underneath everything, and it shapes what kind of firm you are even allowed to call yourself. "Accounting firm" covers a wide range — from a CPA firm that signs audits to a tax practice that never touches an attest engagement to a bookkeeping-forward shop that does monthly closes and advisory. What you can offer, and what you must be licensed to offer, are not the same thing, and getting that clear early saves you from an expensive misstep.

This guide walks the seven steps of standing up an accounting firm in 2026: deciding what kind of firm you are building, the licensing and CPA question, entity and insurance setup, the software stack, pricing and packages, landing your first clients, and the year-one operations and compliance calendar. Then the common mistakes, where Deelo fits, and a detailed FAQ. Confirm every licensing detail with your state board — the rules genuinely vary.

The word "accountant" hides at least three different businesses, and the one you choose determines your licensing, your pricing, and your clients. Be specific before you register anything.

A CPA firm performs attest and assurance work — audits, reviews, compilations — and signs off on financial statements that third parties rely on. This is the most regulated path: the firm and its owners must be licensed, and the work carries the highest liability and the highest fees. If you want to sign audits, you are building a CPA firm, and the licensing section below is non-negotiable.

A tax-focused practice prepares and files returns for individuals and businesses, and may represent clients before the IRS. You do not strictly need a CPA license to prepare returns, but you do need a PTIN, and representation rights depend on your credential (CPA, Enrolled Agent, or attorney). Many successful tax practices are run by EAs and CPAs alike.

A bookkeeping-forward or advisory firm does monthly closes, cleanup, and client accounting services (CAS) — increasingly the highest-growth, highest-margin segment because it is recurring rather than seasonal. This path needs no license to start, though credentials build trust.

Most new firms pick a lane and a niche within it — dentists, restaurants, construction, SaaS, real estate investors — because a firm that specializes can charge more, market more sharply, and deliver faster than a generalist. "I do accounting for anyone" is a harder business than "I do outsourced accounting for dental practices."

This is the step people most want to skip and most cannot afford to. The rules vary by state, so treat everything here as the general shape and confirm the specifics with your state board of accountancy and the AICPA before you commit.

The CPA license. Becoming a licensed CPA generally requires three things: education (commonly 150 semester hours, more than a standard bachelor's degree), passing the Uniform CPA Examination, and qualifying experience under a licensed CPA (often one to two years, varying by state). The exam itself changed with the CPA Evolution model that took effect in 2024 — three core sections (Auditing, Financial Accounting and Reporting, and Regulation) plus one discipline section you choose. This is a multi-year path, and you should know where you stand on it before you decide what services to offer.

Firm licensing and attest work. Here is the part new owners miss: in most states, the firm itself — not just the individual — must be registered or permitted with the state board to operate as a CPA firm and perform attest services. Many states also require that CPAs hold a majority ownership of the firm, though non-CPA ownership rules are evolving and differ by state. Firms that perform attest work are typically subject to peer review as well. Again: confirm your state's specific firm-registration, ownership, and peer-review requirements.

If you are not a CPA. You can still build a real firm. Tax preparation requires a PTIN from the IRS for anyone paid to prepare returns, and e-filing requires an EFIN. The Enrolled Agent credential grants federal representation rights without a CPA license. Bookkeeping and advisory work require no license at all. What you cannot do without licensure is call yourself a CPA, hold the firm out as a CPA firm, or sign attest engagements — and misrepresenting that is exactly the kind of mistake that ends a practice before it starts.

Once you know what you are licensed to offer, set up the business correctly. This is boring and load-bearing.

Entity. Many licensed professionals form a professional entity — a PLLC or PC — because a number of states require licensed professions to use one, and some states restrict firm ownership to licensed CPAs. A non-licensed bookkeeping or advisory practice usually forms a standard LLC. Confirm which entity type your state requires for the services you offer, then file in your home state, get an EIN from the IRS, and open a dedicated business bank account and card the same week. Never run personal expenses through the business account — commingling is the fastest way to undermine the liability protection you just created.

Insurance. Two policies matter from day one. Professional liability (errors and omissions) covers claims that your accounting or tax work caused a client financial harm — the core exposure of the profession, and heightened if you sign attest work or take tax positions. General liability covers the everyday physical risks. Add cyber liability, because you handle Social Security numbers, bank details, and financial records that make an accounting firm a target. Expect a starter package in the low-to-mid four figures a year depending on services and revenue; get a quote specific to your work.

Engagement letters. Every client relationship starts with a signed engagement letter that defines scope, deliverables, fees, responsibilities, and the boundary of what you are and are not doing. This is both a professional-standards expectation and your best protection against scope disputes. Have an attorney review your templates once, then reuse them for every engagement — tax, bookkeeping, advisory, and attest each need their own.

An accounting firm's stack has three layers, and confusing them is a common and expensive mistake.

The engine layer — tax and ledger. This is the specialized software that does the technical work, and it is not optional or replaceable by a general tool. For tax, that means a professional tax-prep engine — Drake, Lacerte, ProConnect, or UltraTax — that handles forms, e-file, and calculations. For accounting and bookkeeping, it means a general ledger — QuickBooks Online Accountant or Xero — where the client's books actually live. These are purpose-built systems with decades of tax-code and accounting logic behind them. No practice-management tool replaces them, and any that claimed to would be lying.

The practice layer — running the firm. This is where most new firms improvise, and where an integrated platform earns its keep. Running the firm means a CRM for prospects and clients, workflow and project management for who-owes-what-by-when (returns in progress, closes due, cleanup jobs), document collection and secure file exchange, e-signature for engagement letters and 8879 authorizations, time tracking for the work that bills hourly, and invoicing that goes out on time. This is the Deelo layer, and it is deliberately separate from the tax and ledger engines. For a fuller look at the whole stack, see our accounting firm software guide.

The security layer. Because you handle taxpayer data, the IRS expects paid preparers to maintain a written information security plan, and you need secure portals for exchanging documents rather than plain email. Bake this in from the start — it is both a compliance expectation and a client-trust differentiator. Confirm current requirements, since data-security guidance for tax professionals is updated over time.

Accounting has been quietly abandoning the hourly bill, and new firms should start where the profession is heading rather than where it has been.

Fixed-fee and value pricing. For defined work — a tax return, a monthly close, a cleanup project — a fixed fee the client agrees to up front is cleaner than an hourly surprise. It rewards you for being efficient instead of penalizing you, and it lets the client budget. The risk is scope creep, which is why the engagement letter has to define exactly what the fee covers and what triggers a change order.

Recurring advisory retainers (CAS). The highest-growth model in the profession is client accounting services: a monthly retainer for bookkeeping, close, reporting, and advisory, priced by the complexity and transaction volume of the client. Recurring revenue smooths out the brutal seasonality of a tax-only practice and is far more valuable than the same dollars earned once a year in April.

Tax return pricing. Price returns by complexity — a simple individual return, a return with a Schedule C and rental, a multi-state business return — using tiers rather than a single rate. Know your realization: if a return you quoted at a flat fee is taking three times the hours you assumed, the fee is wrong, not the client.

The seasonality trap. A tax-only firm earns most of its money in ten weeks and starves the rest of the year. Building recurring advisory and bookkeeping revenue is how you turn a seasonal grind into a stable business — plan for that mix from the start rather than discovering the cash-flow problem in your second summer.

Accounting is a referral profession, and your first clients almost always come from relationships rather than cold marketing. Run several channels at once.

Your network and referral sources. Tell everyone you have worked with that you have started a firm and what niche you serve. More importantly, build relationships with the professionals who refer accounting work: attorneys (especially estate and business lawyers), bankers and lenders, financial advisors, and insurance agents all regularly meet business owners who need an accountant. A handful of solid referral relationships can fill a practice.

Overflow from other firms. Established CPA firms routinely turn away work that is too small, outside their niche, or below their minimum fee. A new firm that makes itself known to a few larger firms can pick up steady overflow, especially in bookkeeping and small-business returns the bigger firms do not want.

Niche marketing and content. A firm that specializes can market with precision. Write the specific guides your niche searches for — "how a dental practice should handle equipment depreciation," not "tax tips." Search engines and business owners both reward specific, genuinely useful content, and it compounds into inbound leads over 6 to 18 months.

The first clients set the pattern. Resist taking every warm body. The clients you accept in year one define your niche, your fee floor, and your referral network. A handful of good-fit clients who pay on time and refer others is worth more than a roster of cheap, high-maintenance ones you will spend year two firing.

An accounting firm runs on a calendar that is unusually unforgiving, and the operations rhythm has to respect it.

The busy-season reality. Tax season compresses enormous work into a short window. The firms that survive it well are the ones that standardize — a consistent intake process, a document-collection workflow that chases missing items automatically, a clear status on every return in progress, and realistic capacity limits so you do not accept more returns than you can deliver. Chaos in April is usually a symptom of no system in February.

Continuing education. Licensed CPAs and Enrolled Agents carry continuing professional education (CPE) requirements to maintain their credentials, on cycles that vary by state and credential. Build the hours into your year rather than scrambling before a deadline, and keep the records.

Data security and e-file compliance. As a paid preparer you are expected to maintain a written information security plan and to protect taxpayer data through secure systems and portals. E-file participation carries its own requirements. Treat these as ongoing obligations, not a one-time checkbox, and confirm current guidance because it evolves.

The monthly rhythm outside busy season. Use the off-season for the recurring advisory and bookkeeping work, for business development, and for the process improvements you have no time for in spring. A firm that only works during tax season is leaving the more valuable, more stable business on the table.

Deelo is the practice layer of an accounting firm — deliberately not the tax or ledger engine. Your returns still run through Drake, Lacerte, ProConnect, or UltraTax; your clients' books still live in QuickBooks Online or Xero. Those are specialized systems Deelo does not replace and does not try to. What Deelo runs is everything around them at $19/seat/month.

CRM: Every prospect and client in one place, with the niche-specific detail that matters — entity type, services engaged, key dates, referral source.

Practice and workflow management: Track every return, close, and cleanup job with owners, deadlines, and status, so nothing gets lost in busy season.

Docs and e-signature: Collect client documents through a secure portal, and get engagement letters and e-file authorizations signed without a separate service.

Time tracking and invoicing: Capture time on hourly work, and bill fixed fees and recurring advisory retainers on schedule with recurring billing that does not lapse — see how to invoice clients as an accountant for the mechanics.

Client portal: Give clients one secure place to share documents, sign, view invoices, and message you — instead of plain email for sensitive files.

For a solo or small firm, this collapses a stack of separate tools into one system that runs the firm while your engines run the technical work. Explore the Deelo CRM for accounting firms to see how the practice layer fits alongside your tax and ledger software.