The open-source AI-native platform for CPA firms

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One AI-native platform to run your entire CPA firm.

The Big Four are building AI tailored to their own practice. Maxed brings that same custom, in-house-grade AI to your firm.

Maxed is the AI-native platform for CPA firms. It runs your onboarding, billing, close, tax prep, documents, bookkeeping, and client portal in one place, and a team of AI agents does the manual work for you.

Reclaim the hours your team burns re-keying numbers between 8-12 tools. Most firms we model save 10-15 hours a week and five figures in subscriptions. Serve more clients on the same headcount, without working tax season to death.

A team of agents, built into every part of the platform: Max leads the back office. Ed leads your client side. You approve everything.

What is Maxed?

Maxed is the AI-native platform that runs your entire CPA firm. Instead of stitching together a dozen vendors, your firm runs onboarding, billing, close, tax prep, documents, bookkeeping, and the client portal in one place, with a team of AI agents on top that does the manual work for you. And it works inside your email.

One system, not ten tools

CRM, proposals, time and billing, close, tax prep, documents, bookkeeping, approvals, and the portal, connected end to end. One login, one source of truth.

A team of agents on top

Max leads the back office with a team of specialised AI agents, and Ed leads your client side with a team of specialised AI agents. They draft, route, categorize, and chase, then hand the work to you to approve.

Built for a firm your size

The agents absorb the document chase, the re-keying, and the close grind, so a small team serves more clients and protects its margin without adding headcount.

The problem

Running a firm should not feel like this.

You did not become a CPA to babysit a dozen subscriptions and re-key the same numbers all day. But that is where the time goes.

Your tools do not talk to each other

Practice management here, a portal there, a separate doc store, a billing tool, a CRM. Your team copies the same client data between them all day.

Manual ticking and tying eats the season

Chasing documents, re-keying numbers, reconciling by hand, rebuilding the same reports in Excel every month. The work that should be automatic is not.

You cannot grow without hiring

Every new client adds manual load, so capacity means headcount. Tax season means turning work away because everyone is already buried.

The fix

Maxed takes that work off your plate.

One connected system

Onboarding, billing, close, tax prep, documents, bookkeeping, and the portal share one source of truth. A new client provisions once, not across five logins.

Agents do the manual work

Max runs the back office and Ed handles client comms. They draft, route, categorize, reconcile, and chase, then hand it to you to approve.

Serve more clients with the same team

The automation absorbs the volume, so your people spend their hours on returns and advisory, not on copying data between tools.

Why change now

Staying put is not free.

The duct-taped stack has a cost you pay every month, even when nothing breaks. Here is what it quietly takes from your firm.

8 to 12

Separate subscriptions that do not talk to each other, each with its own login, bill, and annual price hike.

Hours a week

Spent copying data between systems and rebuilding the same reports in Excel, work that should be automatic.

Clients turned away

Every tax season, because capacity is capped by headcount and everyone is already buried.

Locked in

Data trapped across vendors with no clean way to leave, so you keep paying to stay stuck.

None of those invoices go down on their own. Consolidating onto one system is how the cost stops climbing.

Why Maxed

Not one more tool. The system underneath.

There is a lot of AI in accounting right now. Here is what makes Maxed different from every point tool you have been pitched.

One platform, not one more tool

Most AI in accounting is a point tool you bolt onto an already-fragmented stack. Maxed is the single system the rest of your firm runs on, end to end.

A team of agents, not a chatbot

Max leads the back office with a team of specialised AI agents, and Ed leads your client side with a team of specialised AI agents. They take real actions, not just answer questions, and every client-facing output waits behind your approval.

Open foundations, you own your data

Built in the open on open standards. Your books stay in a format you own and can export anytime. No black box, no lock-in.

In March, the admin just happens

The document chase and the re-keying stop landing on your desk. Max files the W-2 to the right client and year, drafts the reply, and leaves it for you to approve. You spend the season on returns, not on admin.

A team of agents, not a chatbot

Meet Max and Ed.

A team of agents, built into every part of the platform: Max leads the back office with a team of specialised AI agents. Ed leads your client side with a team of specialised AI agents. You approve everything.

With the following specialised AI agents that do the following:

You approve everything. Every client-facing output stays behind a CPA approval gate, logged and traceable.

Built with CPAs, for CPAs

You do the high-value work. The agents do the rote work.

Every capability here was shaped in discovery calls with practice owners and built around how a firm actually runs. The agents absorb the document chase, the categorization, the reconciliation, and the re-keying, so your people spend their hours on returns, review, and advisory.

Your hours go to advisory

Categorization, reconciliation, and the document chase run in the background. Your team spends its time on returns, review, and the advisory work clients actually pay for.

Modeled on real firm flows

Onboarding, tax prep, and close follow the exact stages a firm already works through, not generic business software with an accounting skin.

You stay in control

The agents draft and route, you decide. Every client-facing output waits behind your sign-off, and every action is logged.

Where you already work

It works inside your email.

You don't have to live in another tab. Max syncs with your inbox, reads the threads, and pulls every client document, statement, and message into the right client file automatically.

When something needs you, it shows up as a draft to approve, not one more app to check.

inbox
Here's the Q2 statement and the two 1099s you asked for.
M
Filed 3 documents to Parker & Associates / 2025. Marked 2 request items received. Drafted a thank-you reply.
ApproveEdit

Low-friction setup

Get started without ripping anything out.

Connect the software your firm already uses, like QuickBooks, Bill.com, Outlook, Microsoft 365, and your file storage. Maxed runs alongside it while you switch only the workflows you are ready to switch.

Bookkeeping

QuickBooks and similar GLs

Keep your books where they are. Connect systems like QuickBooks, and Maxed runs categorization, reconciliation, close, and reporting on top.

Accounts payable

Bill.com and AP tools

Connect tools like Bill.com so bills can be first-pass GL-coded against your rules, routed to approvals, and posted once you sign off.

Email + documents

Outlook, Microsoft 365, and files

Connect the inboxes, calendars, and document stores your team already works from, so the agents can draft, route, chase, and log work in context.

Maxed keeps your books in an open format you own, so you can export everything and switch whenever you want. Your data stays yours.

Other connected tools can be added as light, optional add-ons, without forcing the whole firm to switch at once.

What firm owners told us

Right now I'm using different software for all of those things. Document management for one thing, workflow for another, invoicing for another. It's getting difficult keeping track of all those subscriptions. That's why I want to consolidate as much as possible.
Managing Partner · CPA Firm · Jacksonville, FL
Much needed as we CPAs have been losing so much margin as technology develops.
Partner · Tax & Advisory Firm · Minneapolis, MN

The platform

Core firm modules, connected.

One place for the workflows around your tax software, with the details kept behind the product.

CRM + onboarding

Quotes + proposals

Time + billing

Month-end close

Tax prep workflow

Documents + binder

Bookkeeping

Approvals

Client portal

See how the whole platform fits together →

Here's what your clients would see.

Your brand. Your portal. Ed answers from their real data, behind your approval.

client.yourfirm.com
P
Parker & Associates
CLIENT PORTAL
2025 Tax Return - 3 of 5 documents received
W-2 (Primary employer)
1099-INT (Chase)
1098 (Mortgage)
W-2 (Spouse)
1099-DIV (Fidelity)
Do I owe estimated taxes this quarter?
E
Based on your year-to-date income of $185,000 and withholdings, you'll likely owe ~$4,200 for Q2. Want me to prepare the voucher?

An AI you can audit.

The agents do the grunt work. You make every decision that touches a client.

Approval gates

Max drafts an email, you see it first. Ed answers a client, the answer is grounded in their real data and logged. Nothing client-facing ships without your explicit sign-off.

Full audit trail

Every action Max and Ed take is logged. Every document routed, every entry categorized, every reply drafted, timestamped and traceable.

You set the rules

Decide what the agents handle autonomously and what waits for your review. Your guardrails, per firm.

Open and auditable

Built on open standards and open-source components, with no lock-in. You can see how it works, and you can export everything.

How we build it, secure it, and keep it open →

Open source

Open-source platform. AI agents on top.

The platform is built in the open on open standards and open-source components. The hosted Maxed product and its AI agents are what we run for you. No black boxes, no lock-in.

Open standards, no lock-in

Your data is portable and exportable anytime. We build on standards your firm already trusts.

Built in the open

Our adapters, spec, CLI, deployment templates, and UI are open. You can see how the system works.

Safer, not riskier

Banks run on open-source databases and your card data already moves over open crypto. Open is how the most sensitive systems stay auditable.

You already know your stack costs too much.

You see the invoices every month. None of them talk to each other, and all of them go up every year. See what consolidating onto one platform looks like.

Estimate your savings →

Maxed CPA Community

For firm owners who refuse to get left behind.

The gap between firms using AI and those that aren't is growing fast. This is where firm owners compare notes, share what works, and get early access.

Common questions

What exactly is Maxed?
Maxed is one platform that runs your whole firm: onboarding, quotes and proposals, time and billing, month-end close, tax prep, documents, bookkeeping, approvals, and the client portal, all connected instead of spread across a dozen disconnected tools. On top of it, Maxed runs specialised AI agents, led by Max on the firm side and Ed on the client side. It routes every client-facing action to you to approve.
Is it safe to let AI touch my clients' books?
Yes, because the agents never act on their own. Max and Ed draft, categorize, route, and reply, but every client-facing output waits behind a CPA approval gate. Every action is logged and traceable, so you have a full audit trail of what the AI did and when.
Do you train AI on my client data?
No. We do not train shared models on your client data. Your firm's data is isolated to your firm. We document how we handle and secure it on our trust page.
What's open source and what's commercial?
The platform is built in the open on open standards and open-source components, including the adapters, spec, CLI, deployment templates, and UI. The hosted Maxed product and its team of agents are the commercial part we run for you. No lock-in, and you can export everything.
Can I self-host or export everything?
Your data is fully portable and exportable anytime in standard formats. Because the platform is built on open components rather than a brittle black box, you have far more control and lower switching risk than a typical closed vendor.
I don't want to replace my tax prep software.
You don't have to. You keep your tax prep software. Maxed replaces the fragmented layers around it and unifies everything else. You can also keep your existing GL running and let Maxed pull data via API.
We just went through a painful implementation. We can't do another.
We handle the migration of everything around your tax software. No spreadsheet exports, no manual imports, no rebuilding workflows. Start with a handful of clients, keep your existing tools running in parallel, and expand only when you trust it.
Fifi Siddiqui

FIFI SIDDIQUI, FOUNDER & CEO OF MAXED

Same team. More clients. One system.

We're onboarding a small group of design partners at a discounted rate. Book a call with Fifi to see it.