CT600 software for accountants managing multiple clients.
Run every client company's Corporation Tax return and Companies House accounts from one account. Searchable client lists, separate HMRC and Companies House statuses, team roles, and trial-balance imports — built for practices that file for more than one company.
WeFile is listed by HMRC as a commercial software supplier for Corporation Tax, and listed by Companies House for filing unaudited small company accounts. This is a supplier listing, not an accreditation, approval, certification, recommendation or endorsement.
CT600 software for accountants: manage multiple clients in one place
Instead of juggling separate logins or spreadsheets per client, WeFile keeps every client company and every filing inside a single account you control.
Add client companies to your account and see them all on one dashboard, alongside every filing you've started, are working on, or have already submitted. Each client's accounting period dates are pulled from Companies House so you can pick the right period to file without manual lookups.
"Client management" on WeFile means exactly this: managing multiple client companies and their filings within your own account — it is not a separate client CRM, it does not offer bulk creation, import or submission across clients, and clients do not get their own individual logins under the standard accountant membership.
- Searchable company and filing lists, filterable by status, so you can find any client's return in seconds.
- Upcoming deadline tracking across all client companies, so nothing gets filed late.
- Separate HMRC and Companies House submission statuses shown per filing, so you know exactly which leg is still outstanding.
- One account for managing multiple client companies added over time — your annual filing count is what's limited, not how many clients you can add.
Built for how a practice actually works
Team collaboration with roles
Invite colleagues to your account and assign each one a role — admin, editor or viewer — so junior staff can prepare returns while partners retain full control, without sharing personal login credentials.
Manage your teamBookkeeping software imports
Connect to Xero, QuickBooks Online or FreeAgent during a filing to import the client's trial balance for that period, cutting down manual re-entry across your client base. Each connection is made per filing, not as a permanent account-wide sync.
View integrationsWeFile vs other CT600 software for accountants: key differences
Practice software for Corporation Tax varies in a few structural ways worth checking before you commit: whether pricing is per-filing or an annual all-in membership, whether Companies House accounts are filed from the same product or require a separate accounts package, and whether supplementary pages like CT600A and CT600E are included or sold as add-ons.
WeFile's accountant membership is a single annual price covering up to 100 filings, with CT600A and CT600E and the Companies House accounts leg included where applicable — but every supplier's exact terms change, so we don't repeat specific competitor prices or features here.
For a date-qualified comparison sourced directly from each supplier's own published pricing and terms pages (and GOV.UK where relevant), see our Best CT600 Filing Software in 2026 comparison.
Accountant Practice Plan — transparent annual pricing
One annual membership, billed once a year — not a monthly subscription.
- Up to 100 filings within any 12-month period
- No per-filing fee while your membership is active
- Manage multiple client companies within your account at no extra charge
- Team member access with admin, editor and viewer roles
This is not an unlimited plan: hitting your 100th filing within the 12-month membership period expires it early, at which point you can pay again to start a new membership and continue filing.
Start your membershipHow WeFile works for accountants: multi-client filing in 3 steps
- 1
Add or select a client company
Add a new client company to your account or select an existing one from your searchable list of companies.
- 2
Import or enter and review figures
Import trial balance data from Xero, QuickBooks Online or FreeAgent, or enter profit & loss and balance sheet figures directly, then review the automatically calculated corporation tax.
- 3
Submit and track HMRC and Companies House status
Submit the CT600 to HMRC and, where applicable, statutory accounts to Companies House, and track each submission's status separately until accepted.
What you can file across your client portfolio
Supported
- CT600 (2026) Version 3, for any number of client companies
- FRS 105 micro-entity statutory accounts
- FRS 102 Section 1A small-company statutory accounts
- Dormant company filings
- Amended returns — computation-only or with revised accounts
- CT600A supplementary page (loans to participators / s455)
- CT600E supplementary page (charities and CASCs)
- Simultaneous CT600/computation and Companies House accounts submission, where the Companies House leg applies
Not supported / limitations
- CT600B, CT600C and CT600D supplementary pages
- CT600F through CT600P supplementary pages
- Charity and CASC filings are CT600-only — no Companies House accounts leg
- Entities without a Companies House number (CIOs, unincorporated charities, charitable trusts) are CT600-only
- Charity status and dormant status are mutually exclusive on a single filing
Accountant FAQ: CT600 software for multiple clients
Bring your client filings into one account
Add your first client company and see how WeFile handles CT600, accounts, and deadlines across your whole portfolio.