Assurance
AttestWorkLive
Audit, review, compilation, preparation, AUP, and examination engagements in one workspace.
The integrated platform
The whole engagement, one WorkpaperOS.
An operating system of apps where AI bots do the heavy lifting and people stay in the loop. Run attest engagements and keep the books today; add payroll, tax, health records, and apprenticeship as they launch. Built by CPAs and Chartered Accountants with years of Big Four experience, software engineers, and physicians.
AttestWork, Books, and Audit are live now. No card required to start a trial.
Products
One workspace family, launching product by product.
AttestWork, Books, and Audit are live now. Each product has its own page and its own sign-in — start with what you need and add the rest as it launches.
Accounting
BooksLive
Clean books, ready for payroll, tax, and audit — bank feeds, reconciliations, journals, and close.
Audit workpapers
AuditLive
Plan audits, import the trial balance and general ledger, request PBC items, prepare procedures, and clear review notes in one audit workspace.
Why one platform
The integration is the point.
WorkpaperOS brings assurance, accounting, payroll, and records onto one account and one data backbone, so a number entered once shows up everywhere it belongs.
AI bots do the heavy lifting
Across the apps, AI agents handle the grunt work - extracting fields, matching transactions, tying out balances, and drafting workpapers - while a person reviews and signs off wherever judgement matters.
One account, every product
Sign in to the integrated apps once and move between AttestWork, Books, and everything we launch next without a second login.
Work flows between modules
The ledger Books keeps is the ledger Payroll posts to and the data AttestWork imports for an engagement — no duplicate uploads.
Built by the people who use it
CPAs, Chartered Accountants, software engineers, and physicians design the workflows around real deliverables.
Who it's for
One platform for firms, operators, and the teams they serve.
Whether you deliver client work or run your own organization, the integrated platform takes you from intake to finished deliverable with fewer tools to stitch together.
Explore the products- Accounting firms running attest engagements and client bookkeeping
- Businesses and nonprofits keeping books, payroll, and audit-ready records
- Healthcare operators managing patient records and workforce apprenticeships
- Sole proprietors and teams that want one platform instead of five tools