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Cortex CPA Licensed CPA Services Nationwide

Most people don't come to a CPA firm for fun. They come because a lender rejected their paperwork, their books fell behind during a busy season, or tax season snuck up on them again.

Cortex CPA solves that specific problem. Scott Harrison, CPA, has issued over 1,000 CPA letters since 2021. He and our team also handle bookkeeping, tax preparation, and audits for individuals and businesses across the United States.

We work online, but we don't feel like a call center. You talk to a real person. A licensed CPA reviews your actual situation. You get a result you can hand to your lender, your landlord, or the IRS.

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Cortex CPA Licensed CPA Services Nationwide
Express delivery
0 -Hours
CPA letters issued since 2021
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states served, coast to coast
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standard CPA letter delivery
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core services, one licensed team
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What We Do

Four core services. Every one goes through a licensed CPA.

Not a template. Not an unlicensed preparer. A named CPA reviews your actual situation and stands behind the result.

CPA Letter

You need to verify your income or self-employment status, and a lender, landlord, or agency needs proof they can trust. We prepare licensed CPA letters, often with 2-hour delivery — the service Scott Harrison has personally handled over 1,000 times.

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Most requested

Bookkeeping

Your books fall behind faster than you expect, especially during a busy season. We handle your ongoing recordkeeping, so your financials stay current. When you need them — for a loan application or your own peace of mind — they're ready.

Taxation

We prepare and file taxes for individuals and businesses. Self-employment income, business ownership, and multiple income sources all change your return. Our CPAs know how — so you don't overpay or miss a deduction you're entitled to.

Audit

Some situations call for an independent, licensed review of your financial statements — a lender, an investor, or a compliance requirement. Our audit services give you that assurance, from a CPA who follows AICPA auditing standards.

Why Clients Trust Cortex CPA

A licensed CPA stands behind every letter we issue.

A licensed CPA stands behind every letter we issue.
A Named, Licensed CPA
Scott Harrison, CPA, reviews the CPA Letter service personally. We don’t publish his license number on this page. That information goes directly to the lenders, landlords, and agencies who need to verify it — not to the public internet. If you need that verification, we provide it every time.
CPAs operate under state licensing board rules and, for many services, the standards set by the AICPA. Those standards govern how a CPA can represent financial information to a third party. That’s why a CPA letter carries more weight than a letter from an unlicensed preparer.
Our CPA Letter service delivers in as little as 2 hours. Most requests come with a deadline attached, so we built our process around that reality — not around a slower, more comfortable pace for us.
You don’t need to drive to an office. You do get a real person who answers your questions and knows your specific situation — not a rotating queue of anonymous support staff.
Answers

Frequently asked questions

What services does Cortex CPA offer?
We offer four services: CPA letters, bookkeeping, tax preparation, and audits. A licensed CPA handles every one.
Scott Harrison, CPA, leads our CPA Letter service and has issued over 1,000 letters since 2021. He and our team handle bookkeeping, taxation, and audit work as well.
Our standard package delivers in 2 hours. Our notarized package delivers in 24 hours.
Both. We prepare CPA letters, taxes, and bookkeeping for individuals, freelancers, and business owners of all sizes.
Yes. Our CPA Letter Plus package includes notarization for letters that require it.
Yes. We serve clients in all 50 states. You work with us online, without visiting a local office.
Tell us what’s going on — a lender request, a tax deadline, or books that need attention. We’ll point you to the right service.
Yes. We don’t publish the license number publicly, but we provide it directly to any lender, landlord, or agency that needs to verify it.
Tell us everything you need in one request. We’ll coordinate your CPA letter, bookkeeping, taxation, or audit work through the same team.
Contact us with what you need. We’ll confirm the right service, the required documents, and your timeline from there.

Get started with Cortex CPA

Tell us what’s going on — a lender request, a tax deadline, or books that need attention. We’ll confirm the right service, the documents required, and your timeline.
Need a CPA letter fast?

This is what we do most often, and Scott Harrison has built his fastest process around it. Delivery starts in as little as 2 hours.

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Need bookkeeping, tax prep, or an audit?

Tell us about your business and what you need. We'll match you with the right service — and coordinate more than one through the same team.

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