TaxSimba — Pay Self Assessment Through Your Tax Code: The 30 December Deadline
Preparation worksheet

This is an optional offline planning aid, not a tax return or a filing confirmation.
Keep completed notes securely. Do not add passwords or one-time security codes.

PRACTICAL TASK
What the monthly deduction could look like An eligible £2,400 bill collected over 12 equal months would add £200 a month to PAYE deductions. This is an arithmetic example, not confirmation that HMRC will accept coding for your bill. Check three things after filing: the coding notice, the first affected payslip or pension statement, and any amount still due directly to HMRC. If the expected change is missing, query it before relying on that collection method. Keep payments on account in a separate line on your payment plan.

Outcome to confirm: ____________________
Evidence or reference: ____________________
Person responsible and next check date: ____________________

1. Tax year and bill amount
Notes: ______________________________

2. Existing PAYE income
Notes: ______________________________

3. Online submission date and preference recorded
Notes: ______________________________

4. Coding notice and deductions
Notes: ______________________________

5. Amounts requiring separate payment
Notes: ______________________________

Actions agreed with accountant:
____________________________________

Guide: https://taxsimba.co.uk/blogs/pay-self-assessment-through-tax-code-december

Check the current guide and official sources before relying on a deadline or process.