HighLevel for accountants: clients reminded, paperwork in, fewer last-minute panics
Every January it's the same. Clients who've known about the deadline all year suddenly send a carrier bag of receipts. You chase, they ignore, you chase again. I can't make clients organised, but I can make the chasing happen without you.
The penalty grows while the return stays unfiled
These are HMRC's published Self Assessment late-filing penalties, not a quote and not one client's bill. The later charges depend on the tax due, so they are not drawn as a pretend total.
GOV.UK, Self Assessment tax returns: penalties. Last checked 14 October 2026.
- 1 day lateInitial penalty £100
Charged for sending the return late.
- After 3 months£10 a day, up to £900
Daily penalties on top of the initial penalty, up to the published maximum.
- After 6 months5% of the tax due, or £300
Whichever is greater. The tax due is theirs, so this is not a fixed bar.
Depends on the tax due
- After 12 monthsAnother 5%, or £300
Whichever is greater, on top of the earlier penalties.
Depends on the tax due
Late filing gets more expensive the longer it sits
HMRC publishes the late-filing penalties for Self Assessment, and they stack. An initial £100 penalty. After 3 months, £10 a day, up to a maximum of £900. After 6 months, a further penalty of 5% of the tax due or £300, whichever is greater. After 12 months, another 5% or £300 charge, whichever is greater.
I have not added those up into one client's bill. The 6-month and 12-month charges depend on the tax due, and the page does not publish an interest rate, only that interest is charged if the tax is late. Paying late is a separate penalty: 5% of the tax unpaid at 30 days, 6 months and 12 months. If a partnership return is late, every partner is charged.
That is GOV.UK, Self Assessment tax returns: penalties, https://www.gov.uk/self-assessment-tax-returns/penalties. Last checked 14 October 2026. Read it on GOV.UK.
Deadline reminders at 90, 60, 30 and 7 days
I add each client's key dates to their record in HighLevel:
- Self-assessment
- VAT returns
- Corporation tax
- Confirmation statements
Then reminders go out 90, 60, 30 and 7 days before each one, by email or text. Each reminder has a link to upload their paperwork or book a slot with you. You write the wording once, in your tone, and it runs every year.
Stop when they've done it
When a client sends their documents or books in, they can be moved along so the reminders stop. No awkward "please send your records" message after they already have.
See who's outstanding
A simple pipeline shows who's sent everything, who's part way and who's gone quiet. You can see at a glance who needs a phone call.
New enquiries
When a prospective client gets in touch, they get a reply straight away and you get a task to call them back. Handy in busy season.
What it costs
Texts are charged as you send them. Platform and set-up are on my automation page.