HMRC registration deadline · 5 October

New sole trader. A year of trading. No books.

They have to register with HMRC by 5 October, and behind that form is a year of business run through a personal bank account. Build the first year’s bookkeeping and opening position from the statements, using the rules you already have.

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Draft trial balance
First year · trading from Jun 2025
● Balanced
AccountOpeningMovementClosing
1000 Current Account 10,000.00 11,536.31 21,536.31
1010 Savings Account 5,000.00 4.11 5,004.11
4000 Sales Revenue 0.00 (12,750.00) (12,750.00)
4200 Interest Received 0.00 (4.11) (4.11)
7200 Rent & Rates 0.00 950.00 950.00
6300 Computer & IT 0.00 263.69 263.69
9999 Opening Balance Equity (15,000.00) 0.00 (15,000.00)
Totals 0.00 0.00 0.00
Every column and every row adds up to nil, calculated live
The unbilled first year

They didn’t know they needed an accountant until now.

They started trading last year, ran it all through their current account, kept some receipts and have just found out about the deadline. So the real job is rebuilding a year of bookkeeping from a bank statement, quickly, and it rarely fits the fee for a first year of accounts.

Build the year from the bank, set any opening position once, and the client starts your normal process with the numbers already straight.

entriohq.com / clients / m-osei / getting-started
Getting started
Workflow: Onboarding
Client & trading period set upDone
Statements from first day of tradingDone · 512 rows
Coded by existing firm rules468 of 512
Review exceptions44 left
Money introduced & equipmentOpening entries next
91% coded before anyone looked, by rules written for other clients

Before and after

Bring the trader in without rebuilding the year by hand.

The task
Traditional first year
The same job in Entrio
Getting the history
Ask for a year of statements, then work out what each payment was for.
Build it from the bank, the one record a new trader actually has.
Business vs personal
Sort a mixed current account line by line, largely from a conversation.
Rules flag the personal drawings and you confirm the edge cases.
Opening position
Reconstruct money introduced and assets brought in, then key it by hand.
Entered once and carried through into the trial balance.
Consistency with your other clients
Depends who did it and how busy September was.
The same every time, because the same rules run on every trader.
The next new registration
Exactly as much work as this one.
Less, because every rule you wrote here is waiting for them.

FAQ

Registration-deadline questions.

What is the 5 October deadline?

Someone who became self-employed during a tax year has to tell HMRC by 5 October after that tax year ends, so they get a Self Assessment record in time to file. Missing it risks a failure-to-notify penalty. Entrio doesn’t do the registration (that’s a short HMRC form), but it’s usually when a firm takes the client on and finds a year of bookkeeping to build.

The client has never had an accountant. Where does the history come from?

The bank. For a new sole trader it’s the one complete record. Import the statements from the day they started trading, let your rules file them, and you have a reviewed position for the year.

What if there’s no opening position at all?

For a real start-up there often isn’t one. Where there is (money put in, a van brought into the business, stock on hand), you enter it once and it goes into the trial balance.

I’m taking on several new sole traders before October. Does that scale?

Yes. Each client has its own books but they share your firm’s rules, so the second trader arrives mostly filed by the rules you wrote for the first.

What if they’ve only traded for a few months?

Then it’s a short year and a quick job: import, review, reconcile. Doing it now means it stays quick instead of competing with everything else in January.

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Start with the next trader who signs.

Fourteen days free and no card. A sample client is set up when you sign up, so you can see the whole thing before any real data goes in.

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