CT600 Workflow Software and Deadline Tracker
CT600 workflow software links each company's year-end accounts and corporation tax return, so both are planned from one date. Remindoo pulls year-ends from Companies House and builds the jobs automatically.
Unlimited users · Per-client pricing · Built by a practising Chartered Accountant
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Trend, quick metrics and team load for all services
- Premier Books Consultancy
- Cranleys Chartered Accountants
- CJM Accountants
- Towpath Accounting Solutions
- Auditax International
- RS
- Sharp Accountax
- BS
- Otium Virtual Assistants
- BNW Chartered Accountants
- TaxAccolega Chartered Accountants & Tax Advisers
- iyouprint
Quick answer
CT600 workflow software plans corporation tax work from each company's year-end, tracking the 9-month payment date and 12-month filing deadline. Remindoo syncs Companies House data, creates linked year-end accounts and CT600 jobs, and reminds staff and clients in time. Filing is done from your tax software.
Corporation tax deadline tracker
For most companies, corporation tax is payable nine months and one day after the year-end, and the CT600 is due twelve months after (see gov.uk). Remindoo tracks both.
- Payment: 9 months + 1 day
- CT600 filing: 12 months
- Accounts to Companies House: usually 9 months for private companies
Year-end accounts and CT600 in one flow
One trigger date creates the accounts job, the CT600 job and client reminders, so nothing is planned twice.
What CT600 workflow software should include
| Feature | Why it matters | Remindoo |
|---|---|---|
| Companies House sync | Import company details and filing deadlines. | Yes, Companies House sync |
| Trigger dates | Start work from key filing or internal dates. | Yes, Trigger dates |
| Recurring tasks | Repeat work is created automatically on schedule. | Yes, Recurring tasks |
| Tax liability visibility (Growth plan) | Complimentary for 12 months on Growth. | Yes, Tax liability visibility (Growth plan) |
| Internal vs external deadlines | Build a buffer before every statutory date. | Yes, Internal vs external deadlines |
How Remindoo works as CT600 workflow software
Here is how Remindoo handles CT600 workflow software.
Companies House sync
Import company details and filing deadlines.
See featureTrigger dates
Start work from key filing or internal dates.
See featureRecurring tasks
Repeat work is created automatically on schedule.
See featureTax liability visibility (Growth plan)
Complimentary for 12 months on Growth.
See featureInternal vs external deadlines
Build a buffer before every statutory date.
See featureAutomated reminders
Timely prompts before work becomes urgent.
See featureRemindoo pricing
Remindoo is priced per active client per month, with unlimited users on every plan. For example, a firm with 75 active clients pays £67.20 a month ex VAT on Core (£80.64 inc VAT) or £78.00 ex VAT on Growth (£93.60 inc VAT). Yearly billing saves 10%.
Archived clients are not counted. Every firm starts with a 60-day free trial; a payment card is taken at sign-up. See the full calculator on the pricing page.
See Remindoo with your own clients
A 30-minute walkthrough using your services, deadlines and team.
Alternatives to consider
Competitor details below come from public websites and may change. Anything marked 'To be verified' has not yet been confirmed with the supplier — check before you decide.
| Product | Best for | Pricing model | Price (£) | Strengths | Gaps | Checked |
|---|---|---|---|---|---|---|
| Remindoo | UK firms wanting CT600 workflow software with unlimited users | Per active client per month, unlimited users | Core from £67.20/month ex VAT at 75 clients | Practice management, CRM, workflow, client portal and built-in AML/KYC checks in one UK-focused platform | Does not file returns with HMRC or Companies House; use your existing tax and accounts software for filing | 27 September 2026 (source, opens in new tab) |
| AccountancyManager | Small and mid-sized UK firms wanting practice management with client onboarding | Per user per month (tiered) | Quote on request | Strong onboarding and e-signature workflow, established UK accountant user base | Per-user pricing can scale up quickly as a team grows | 24 September 2026 (source, opens in new tab)[VERIFY] |
| Karbon | Larger firms wanting deep email and workflow integration | Per user per month (tiered) | Quote on request | Powerful workflow automation, email-to-task triage, detailed reporting | Per-user pricing and a steeper learning curve than simpler task tools | 24 September 2026 (source, opens in new tab)[VERIFY] |
| Senta | Firms wanting a lightweight, template-driven workflow tool | Per user per month | Not publicly stated | Simple client and workflow templates, good for smaller teams | Fewer dashboard and reporting options than larger platforms | 24 September 2026 (source, opens in new tab)[VERIFY] |
| TaxDome | Firms wanting workflow plus a client-facing portal and e-signature in one tool | Per user per month | Quote on request | Strong client portal, document management and automation features | Built primarily for a broader accounting/tax market rather than UK-specific statutory templates | 24 September 2026 (source, opens in new tab)[VERIFY] |
| Pixie | Small UK firms wanting a straightforward, affordable workflow tool | Per user per month | Quote on request | Clean, simple interface aimed at small practices | Fewer advanced reporting and capacity-planning tools | 24 September 2026 (source, opens in new tab)[VERIFY] |
| Jetpack Workflow | Firms wanting recurring workflow templates without a full CRM | Per user per month | Quote on request | Good template library, easy to set up recurring jobs | Limited CRM and lead management features compared with all-in-one platforms | 24 September 2026 (source, opens in new tab)[VERIFY] |
Competitor details come from public vendor pages on the date shown and may have changed. Prices exclude VAT unless stated. Rows marked [VERIFY] are awaiting a second check.
Which option suits your firm?
- 1
Choose Remindoo if
you want workflow, CRM, client portal and AML checks in one place, and you don't want to pay per user.
- 2
Look elsewhere if
you need software that files returns directly with HMRC — Remindoo manages the work around filing, not the filing itself.
What UK firms say on Trustpilot
“With Remindoo, everything from the first enquiry to onboarding and ongoing client management is tracked in one place… It saves us hours and gives me, as a practice owner, complete visibility of where the firm stands.”
“The biggest benefit is having clients, tasks, deadlines, workflows, proposals and communication all organised in one place.”
“During my trial, the team were absolutely amazing. They helped onboard my clients, set up my settings and made sure everything was ready for me to use… they made the whole process completely stress-free.”
“It brings client information, tasks, recurring deadlines, workflows and reminders together in one place, giving us much better visibility across the team.”
Switching to Remindoo
Most firms move across in stages: import clients, switch on the UK service templates you already run, then invite the team. Because Remindoo is priced per active client with unlimited users, adding staff during the move costs nothing extra.
Book a 30-minute demo and we will walk through your current setup, what to import first and how long a typical move takes for a firm of your size.
Frequently asked questions
Does Remindoo file CT600 returns?
No. It manages the workflow and deadlines; you file from your tax software.
Does it sync year-ends from Companies House?
Yes.
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Ready to run your practice in one place?
Free for 60 days, then per-client pricing with unlimited users.
Last updated: . Written by Waqas Sagar ACA FCCA FMAAT, Chartered Accountant with 18+ years in practice, founder of Accotax (which has served over 5,000 clients) and Remindoo.
Why recording every task matters in an accountancy practice
Accounting firms run on deadlines: VAT returns, payroll, confirmation statements, accounts and Self Assessment. Recording every job as a task, with an owner and a date, is the simplest way to make sure nothing is missed.
Avoid penalties
HMRC and Companies House charge penalties for late filing. A task for every deadline, with an internal date before it, gives the team a buffer.
Nothing depends on memory
Recorded tasks mean work continues when someone is off sick, on leave or has left the firm.
Consistent quality
Subtask checklists make every job follow the same steps and reviews, whoever does the work.
Visibility for managers
Filters by owner, status and deadline show at a glance what is late, what is due and who needs help.
Practical tips from UK practice
- Set an internal deadline two to four weeks before every statutory deadline.
- Use recurring tasks for repeat work such as VAT, payroll and bookkeeping.
- Break larger jobs into subtasks, including a review step.
- Comment on the task instead of by email, so the history stays with the work.
Related Remindoo features
Written and reviewed by Waqas Sagar ACA FCCA FMAAT, Chartered Accountant with 18+ years in practice. Founder and MD of Accotax, an ICAEW, ACCA and AAT regulated London practice that has served over 5,000 clients, and founder of Remindoo. Guidance is general; check current GOV.UK and professional body guidance for your firm.
What UK practices say about Remindoo
Read all reviews on Trustpilot“With Remindoo, everything from the first enquiry to onboarding and ongoing client management is tracked in one place… It saves us hours and gives me, as a practice owner, complete visibility of where the firm stands.”
“The biggest benefit is having clients, tasks, deadlines, workflows, proposals and communication all organised in one place.”
“During my trial, the team were absolutely amazing. They helped onboard my clients, set up my settings and made sure everything was ready for me to use… they made the whole process completely stress-free.”
“It brings client information, tasks, recurring deadlines, workflows and reminders together in one place, giving us much better visibility across the team.”
