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Checklist · Client
P11d Checklist for Accountants
Managing annual expenses and benefits reporting.
Built by a practising Chartered Accountant · Unlimited users · 60-day free trial · Last updated 23 September 2026
Quick answer
P11D filings are often complex due to the variety of benefits offered. A rigorous checklist ensures you capture every taxable benefit, correctly calculate the values, and submit everything by the 6 July deadline to avoid interest and penalties.
Why is a P11D checklist necessary?
Expenses and benefits are frequently misreported. A checklist ensures you don't overlook hidden taxable benefits.
Errors often occur because different departments (e.g., HR and finance) don't communicate clearly.
Consistent reporting protects clients from unexpected HMRC investigations.
What details do you need to collect?
You need a full list of all employee benefits: company cars, fuel cards, private medical, loans, and any other non-cash benefit. Check your client’s payroll records.
Common taxable benefits
- Company cars and fuel
- Private medical insurance
- Low-interest loans
+ 2 more in the full download
Checklist preview
0/4 done · showing 4 of 15 itemsThe full 15-item checklist is in the download below. Enter your name and email to get it as a Word or PDF file.
This is a standard checklist. Each firm's requirements may vary, so please cross-check everything against current GOV.UK, Companies House and professional body guidance before relying on it.
See it working with your own clients
A 30-minute walkthrough using your services, deadlines and templates.
Turn this into a task and subtask template in Remindoo
Save each group as a task with subtasks, attach it to the right service and let recurring tasks create it for every client, every period. Each item gets an owner and a deadline, and nothing depends on someone remembering to print the list. See task and subtask templates.
What are the common mistakes?
- Forgetting to report benefits provided directly by third parties
- Incorrectly calculating car BIK
- Failing to account for 'trivial benefits'
- Missing the 6 July filing deadline
- Reporting benefits that are already payrolled
“Managing deadlines and tasks is much easier.”
Frequently asked questions
When is the deadline?
6 July.
What if benefits are payrolled?
If you payroll benefits, you don't need a P11D for those specific items, but ensure this is clearly marked.
Are trivial benefits taxable?
No, provided they meet the specific conditions—check HMRC rules carefully.
Is Class 1A NIC due?
Yes, this is employer-only and must be paid by 22 July.
What do I give to employees?
They must receive a copy of their individual P11D details.
What if it's late?
Automatic monthly penalties apply.
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Sources
Last updated 23 September 2026. General guidance, not regulatory advice.
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.
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