You're gonna need a bigger book.

Stack is the AI operating system for today's top accounting firms.

Set up fast. Scale even faster.

Get set up in minutes

Add clients, connect their systems, upload your close checklists, and put coworkers on the first task — all within an hour.

Perfect your processes.

Run your agents concurrently, refine and adapt your skills, and build routines that automate every close.

Take on more clients

Closes are faster, clients see their financials sooner, and your team shows up as the thought partner each client needs.

Build your stack. Unlock speed and capacity.

Up to

60%

faster closes for clients.

Up to

9x

faster recurring schedules and reconciliations.

“The routine stuff is more standardized now, so I can put my attention on what actually need my judgment. It’s now much easier to give clients a consistent level of service.”

Katie Lamb, Manager Sales Solutions at Decimal

“We're running multiple agents simultaneously — spending time reviewing work, not doing and then reviewing. It fundamentally changes the way we work.”

John Ikosipentarhos, President at Zeroed-In Consulting

“My role is shifting toward people investment. The tools are here to systemize the work — it’s now a lot more focussed on human relationship management.”

Tyler Otto, President & Owner at Specialized Accounting

Built alongside accountants. Trained on real closes.

Read the story

Your work. Your way.

Access the most advanced AI system to do real finance work, exactly how you need it done.

Connect your systems.

Push, pull, read, and write across every system your clients work on — QuickBooks, Google Drive, spreadsheets, bank feeds, and beyond.

Connect your systems

Assign real work to AI on day one.

Run reconciliations, schedules, and monthly reporting end to end — from workbook to ledger. Ramp comes with accounting expertise built in, ready for real client work.

Assign real work

Tailor to each client.

Your clients have different needs: project-based spending, deferred revenue recognition, custom vendor rules. Ramp learns each preference once and runs the work that way for every client, every time.

Tailor to each client

Stay in control.

See the work being done in real time: every reason, every source, every step. Set guardrails, step in when needed, and approve what needs judgment before it posts.

Stay in control

All this powered by an engine that outperforms any general purpose AI

Stack handles a wider and deeper range of accounting work across 200+ independently benchmarked bookkeeping tasks. Informed by 4,500+ firms and 1M+ closes on Ramp today.

Agent performance across identical simulations

Ramp Stack

65.8%

ChatGPT 5.5

61.7%

Claude Opus 4.7

58.3%

Gemini Pro 3.1

54.3%

Auditable. Private. Secured.

Every action is traceable. Every byte is protected. Every output is yours.

Your firm's IP stays private

Your firm's IP stays private.

The skills, workflows, and expertise you build into Stack are visible only to your firm — not shared with your clients, other firms, or AI labs.
Audit-grade confidence

Audit-grade confidence.

Every output is tied to the source data and the work behind it, giving auditors and accounting teams a permanent trail back to the source.
Client data stays secure

Client data stays secure.

Stack runs on Ramp's banking-grade infrastructure — designed with SOC 2 controls, with data encrypted in transit and at rest.

FAQ

Stack is the AI platform built for accounting firms. Agents run the accounting work end-to-end: reconciliations, journal entries, schedule roll-forwards, variance analysis. Each workflow follows your firm's exact processes, across every client.

Stack is built for accounting firms, from boutique CAS practices to large multi-client firms. Partners, senior accountants, and bookkeepers work in one platform, with firm-wide visibility, controls, and IP protection.

Stack handles any accounting workflow. It comes pre-loaded with skills, codified SOPs that agents follow and reuse across every client, covering the most common work: reconciliations, journal entries, variance analysis, schedules and accruals. Firms can edit any skill or build new ones as their book evolves.

Everything in Stack stays within your firm. Skills, processes, and client data are never shared with other firms and never used to train the models Stack runs on. Ramp's contracts with foundation model providers include zero data retention — your data doesn't persist on their end either.

General-purpose AI produces answers. Stack does the work. It connects to the ledger, bank accounts, and documents your clients already use, runs workflows across your entire book, and logs its reasoning at every step. In an independent benchmark across 200+ accounting tasks designed by expert accountants, Stack outscored every general-purpose model evaluated.

Stack is free through August. Get started with Ramp Stack here. Connect your first client, link their systems, and have agents running on their first task within about an hour.

Time is money. Save both.