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TaxDome is an all-in-one practice management platform for tax, bookkeeping and accounting firms, with a strong focus on US tax work. Here's how it compares with OneFirmOS.
Side by side
| TaxDome | OneFirmOS | |
|---|---|---|
| Focus | Tax-first all-in-one platform | All-in-one practice management, Canada-first |
| Data hosting | States Canadian firm data is stored in Canada | Canada (AWS Montreal); US clients' documents in the US |
| Bookkeeping | Bookkeeping Hub connects to clients' QuickBooks Online ledgers | Own ledger and cash coding, plus QuickBooks Online sync |
| Canadian tax | Tax features listed are IRS-focused | HST in billing and books, T1 organizer with slip recognition, CaseWare-ready export |
| Billing model | Per seat, billed annually upfront | Per user per month in CAD, first month free |
TaxDome information is from taxdome.com taxdome.com, checked on 7 November 2026. Products change; tell us at support@onefirmos.com if anything is out of date.
Overlap
Both TaxDome and OneFirmOS offer: Client portal, workflow automation, proposals and engagement letters, invoicing and payments, time and WIP, document management and e-signatures.
OneFirmOS adds its own bookkeeping ledger and cash coding, e-signatures with a tamper-evident audit trail and no per-envelope fees, multi-office and multi-currency billing, and HR and desk booking, all hosted in Canada.
FAQ
For firms that want one system covering workflow, time, billing, the client portal, documents, e-signatures and bookkeeping, hosted in Canada, yes.
OneFirmOS includes its own bookkeeping ledger and cash coding, QuickBooks Online sync, e-signatures with a tamper-evident audit trail and no per-envelope fees, multi-office and multi-currency billing, and is hosted in Canada.
Yes. Onboarding is assisted: we import your clients, contacts and documents, rebuild your workflows and train your team.
One platform
A 30-minute walkthrough on your firm's real workflow. First month free.