Accounting & Financial Services
How to start an accounting or financial services business, and what's next
Formation takes a day. Licensing, trust accounts, client data rules, and the registrations that renew every year, that's the part most guides skip.
What makes an accounting or financial-services firm different
Most guides treat an accounting firm like any service business. It isn't, the work is licensed, the money you handle is often someone else's, and the data you hold is legally protected. Five things set it apart:
A license gates the work.
State CPA boards license individuals to sign audit opinions; SEC, FINRA, and state-board registration gate who can advise clients on securities or registered investment products. Even the entity type you choose can be constrained by your licensing body, it's worth confirming with an attorney who knows licensed-professional entities.
You hold other people's money.
Retainers billed against, tax refunds passing through, escrowed settlement or payroll funds, any client money the firm holds must sit in a separate trust account with per-client ledgers.
Client financial data is regulated, not just sensitive.
Tax preparers and financial-services firms are legally required to keep a written information security plan, the FTC Safeguards Rule and IRS Pub. 4557 spell out what goes in it, starting with a risk assessment.
Marketing runs under securities rules.
For a registered adviser, SEC Rule 206(4)-1 governs every advertisement, and it works differently from ordinary marketing law, testimonials and endorsements are allowed only with required disclosures.
The calendar is the exposure.
Client records, engagement tracking, filing deadlines, workpapers, and e-signatures all run through practice management software, and the deadline calendar is the exposure that matters most: a missed filing is a client penalty and a liability claim.
The order the work arrives in
Every business moves through the same broad stages. What changes by industry is what each stage demands. For accounting and financial services:
- 01
Plan the business.
What you sell, who buys it, and how you charge.
- 02
Make it official.
Entity, registrations, and business finances kept separate from your own.
- 03
Set up the money systems.
Bookkeeping and invoicing that follow documented terms. For accounting and financial services: any client money you hold, retainers billed against, tax refunds passing through, escrowed settlement or payroll funds, belongs in a separate trust account with per-client ledgers, reconciled every month.
- 04
Set up your tools and systems.
The operational systems the business runs on, chosen so they work together. For accounting and financial services: practice management software for client records, engagement tracking, filing deadlines, workpapers, and e-signatures; a written information security plan for client data, a legal requirement under the FTC Safeguards Rule and IRS Pub. 4557; and, for tax practices, IRS e-file and preparer credentials (EFIN and PTIN).
- 05
Protect it.
Insurance and core agreements before the exposure starts. For accounting and financial services: E&O (errors and omissions) insurance before the first engagement, with attention to how the policy is built, claims-made vs. occurrence, where the retroactive date is set; engagement letters with explicit scope, fee structure, conflict acknowledgment, and termination terms.
- 06
Get ready for customers.
Marketing and sales practices that won't need retrofitting. For accounting and financial services: if the firm is a registered adviser, an inventory of every advertisement, website, pitch decks, social profiles, testimonials, review-site profiles, and any performance figures, checked against the SEC Marketing Rule before it runs.
- 07
Run and grow.
Delegation and day-to-day operations on documented terms. For accounting and financial services: professional licenses kept current for every individual who holds one; firm registration, CPA firm permit, RIA (registered investment adviser), or broker-dealer, renewed on schedule; and an AML (anti-money-laundering) program where the rules apply.
StartBlox sequences these for your stage and industry, one step at a time, reordered as your answers change.
The risks most accounting and financial-services founders don't see coming
You can probably name two or three of these. The full list is longer, and in this industry, most of it is enforced by a regulator, not negotiated with a client.
Client money outside a trust account.
Retainers billed against, tax refunds passing through, escrowed settlement or payroll funds, any client money the firm holds must sit in a separate trust account with per-client ledgers. A monthly three-way reconciliation, bank statement, trust ledger, client ledgers, with every discrepancy resolved before closing is what keeps it provable.
Practicing ahead of the license.
State CPA boards license individuals to sign audit opinions; SEC, FINRA, and state-board registration gate who can advise clients on securities or registered investment products. The firm needs its own registration too, a CPA firm permit, RIA, or broker-dealer registration, depending on what you sell.
E&O coverage that isn't designed for the work.
Professional liability (errors and omissions) coverage is standard for accounting and financial-services firms, and the design choices matter, claims-made vs. occurrence, where the retroactive date is set.
No written information security plan.
Tax preparers and financial-services firms are legally required to maintain one, the FTC Safeguards Rule and IRS Pub. 4557 spell out the elements, starting with a risk assessment. This is a legal requirement, not a best practice.
Advertising under the wrong rulebook.
SEC Rule 206(4)-1 governs every advertisement a registered adviser runs, and it works differently from ordinary marketing law. Testimonials and endorsements are allowed only with required disclosures.
Deadlines tracked in someone's head.
Client records, engagement tracking, filing deadlines, workpapers, and e-signatures run through practice management software in an accounting or tax firm, and the deadline calendar is the exposure that matters most: a missed filing is a client penalty and a liability claim, and it belongs in a system with visibility across the firm, not in one person's memory.
Engagements without written terms.
Explicit scope, fee structure, conflict acknowledgment, and termination terms, in writing, for every engagement, with a regulatory layer on top: the AICPA, state CPA boards, and SEC/FINRA where applicable add independence, peer-review, and recordkeeping obligations.
Your clients
their money held in a separate trust account with per-client ledgers, their financial data protected under a written security plan, their engagement on written terms with clear scope and fees, and E&O coverage behind it when something goes wrong.
Regulators
state CPA boards, the SEC, FINRA, and state boards gate who can practice and who can register the firm; the SEC Marketing Rule governs advertising; AML program requirements apply to broker-dealers, certain investment advisers, money-services businesses, and some accounting practices.
The IRS
tax practices register for e-file and preparer credentials (EFIN and PTIN), and IRS Pub. 4557 spells out the written-security-plan elements for anyone handling taxpayer data.
Your employees and licensed staff
every individual who holds a professional license needs it kept current, and payroll set up with compliance from the first hire.
Each of these is scored against your answers, sequenced into your setup plan, and re-scored as your business changes.
What keeps coming back
Formation services stop at "you're registered." An accounting or financial-services firm's obligations run on repeating cycles:
Every month: the trust-account reconciliation, bank statement, trust ledger, and client ledgers, with every discrepancy resolved before closing, and sales-tax filing and remittance where it applies.
Every quarter: state tax filings, sales, payroll, and entity accounts, each on its own filing calendar, and a review of payroll filings.
Every year: firm registrations renew, CPA firm permit, RIA, or broker-dealer, each with renewal and annual-amendment deadlines; every preparer renews IRS credentials; the insurance program gets a coverage review with your broker; annual reports and good-standing renewals come due in every state where you're registered, along with local operating permits.
On longer cycles: professional licenses come up for renewal, anything expiring soon gets renewed now, and any lapse gets addressed immediately; peer review returns on a multi-year cycle, with engagement files prepared ahead of it.
All the time: where AML rules apply, the program runs as an ongoing obligation, it's monitoring, not a one-time filing.
StartBlox treats these as recurring obligations that come back when they're due. A "What's due" view collects what's overdue and what's coming up, and completed items reset on their real schedule instead of staying checked off forever.
How this guidance is built
The sequence and risks on this page come from a library of documented, predictable founder failure patterns, refined for each supported industry, not opinion, not motivational advice. The scoring is consistent and transparent: the same answers always produce the same result, and every score traces to the answers behind it. An AI advisor explains results in plain language, but it never changes a score. StartBlox is educational: it is not legal, financial, or insurance advice, and when a step needs a licensed professional, it says so and shows qualified options side by side. Anyone can complete the diagnostic and see their full setup plan free; every plan starts with a 14-day full-capability trial, no credit card.
Frequently asked questions
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