Locum Accountants · West London
Locum accountants in Isleworth
Locum accounting for doctors, dentists, pharmacists and other clinicians in Isleworth: sole trader locums get books and the tax return for £69 a month, limited company locums full compliance for £95, and annual-only returns are £199. Fixed, published, the same in Isleworth as in every other part of England.
from £69/mo · fixed, per month
Next deadlines
- PAYE and National Insurance for last month paid to HMRC (electronic)
- PAYE and National Insurance for last month paid to HMRC (electronic)
- PAYE and National Insurance for last month paid to HMRC (electronic)
- Online Self Assessment filing deadline and balancing payment due
Who this is for
Locum Accountants for Isleworth
Locum and sessional clinicians in Isleworth: GP locums and salaried GPs with extra sessions, hospital doctors with private practice or agency shifts, dental associates and locum dentists, locum pharmacists and optometrists, vets, physiotherapists and other allied health professionals, whether trading as sole traders, through a limited company or both.
What is included
Everything inside the fixed fee
- Income from every practice, agency, trust and private engagement reconciled, including statements of earnings and remittances
- Expense review for locums: professional indemnity, GMC/GDC/GPhC fees, exams, courses, equipment, travel between placements
- NHS pension contributions, Type 2 certificates and superannuation reconciled to pay statements
- Sole trader Self Assessment, or limited company accounts, CT600 and payroll, depending on structure
- Annual allowance and tapered annual allowance checks for higher-earning clinicians
- IR35 and off-payroll status considered for engagements through your own company
How it works
Locum Accountants from Isleworth, step by step
Tell us your situation
A short message or call about what you do and what needs filing. We ask the questions that determine the right package and nothing more.
Fixed fee in writing
You receive one price for the work, confirmed by email before anything starts. It does not change if the job takes longer than we expected.
Send records, review the draft
Records come by WhatsApp or email. We prepare the draft, explain the figures in plain English and answer your questions.
We file, you get the receipts
Once you approve and the fee is settled, we submit electronically and forward the HMRC or Companies House acknowledgement the same day.
Why IGI
What you get in Isleworth
The price for locum accountants is published on this page and is what a client in Isleworth pays. We confirm it in writing first, and the invoice matches the quote.
Deadline-first: the dates that matter for locum accountants are shown at the top of this page, diarised for every Isleworth client and chased before they arrive.
No appointments, no travel across West London, no parking. Everything for locum accountants in Isleworth happens online, with a real person on the other end during UK working hours.
You get one contact for locum accountants, not a queue. Isleworth clients message the same person throughout and get an answer in working hours, usually within a few hours.
Plain English, with the numbers. Every draft for Isleworth comes with a short explanation of what the figures mean and what, if anything, you should do about them.
You stay in control of locum accountants: drafts go to Isleworth clients first, with the figures explained, and nothing leaves us until you say so.
Local facts
About Isleworth
Isleworth is in West London, within Hounslow, in the TW7 postcode district, England. Income tax in England follows the UK rates: 20% basic to £50,270, 40% higher to £125,140 and 45% additional, with the personal allowance of £12,570 tapered away above £100,000. National Insurance, VAT and Corporation Tax are UK-wide, and Stamp Duty Land Tax applies to property purchases.
| Place | Distance | Direction |
|---|---|---|
| Woodlands, Hounslow | 0.7 mi | W |
| Syon | 0.8 mi | NE |
| St Margarets, Richmond upon Thames | 0.8 mi | S |
| St. Margarets and North Twickenham | 0.9 mi | S |
| Richmond Riverside | 1 mi | SE |
| Spring Grove, Hounslow | 1 mi | NW |
| Hounslow South | 1 mi | W |
| Kew Gardens | 1 mi | E |
Worth knowing
Rules that come up in this work
Confirmation statements and identity verification
Every company must file a confirmation statement at least once a year, within fourteen days of its review date, with a £50 Companies House fee. Since November 2025 directors and people with significant control must also verify their identity with Companies House, and the confirmation statement is where existing officers confirm they have done so during the transition year.
CIS deductions
Under the Construction Industry Scheme, contractors deduct 20% from a registered subcontractor's labour invoices, or 30% if unregistered, and pay it to HMRC. The subcontractor reclaims the deductions against their actual tax through Self Assessment, usually producing a refund because deductions are on turnover while tax is on profit. Contractors file a monthly return by the 19th.
The Self Assessment calendar
The tax year runs from 6 April to 5 April. Anyone new to Self Assessment must register by 5 October after the end of the tax year in which their untaxed income began. The online return and the balancing payment are due by 31 January, with a second payment on account on 31 July where they apply. Paper returns have an earlier deadline of 31 October and are rarely sensible.
Payments on account
A common surprise in Self Assessment is the January payment that is far larger than expected. That is the balancing payment for the year just ended plus the first payment on account for the year ahead, which HMRC sets at half of the bill just calculated. We put the figure in your hands months ahead and tell you how to adjust it legitimately when circumstances change.
Late filing penalties
Lateness is expensive in a way that compounds. For individuals, £100 immediately, then daily penalties, then percentage-based ones at six and twelve months, with interest running on unpaid tax throughout. For companies, Companies House penalties scale with delay and double on repeat, and HMRC adds its own for a late CT600. Filing on time is the cheapest tax planning there is.
Making Tax Digital for Income Tax
Making Tax Digital for Income Tax began in April 2026 for sole traders and landlords with qualifying income over £50,000, extends to those over £30,000 in April 2027 and is planned for £20,000 in April 2028. It requires digital records in compatible software and four quarterly updates to HMRC each year, with a final declaration replacing the traditional return. Payment dates are unchanged.
The VAT registration threshold
VAT registration is compulsory once taxable turnover in any rolling twelve-month period exceeds £90,000, or when you expect to exceed that in the next thirty days alone. The test is rolling, not by tax year, and includes zero-rated sales. Businesses regularly cross it without noticing, and late registration means accounting for VAT on sales where it was never charged to customers.
Questions
Locum Accountants questions from Isleworth
Can you handle the NHS pension estimate of earnings and the Type 2 form?
Yes. The estimate of pensionable earnings submitted at the start of each year sets your contribution rate; the Type 2 certificate reconciles the actual figures after the year end and is due by the end of February. Both are prepared from the records we keep and submitted on your behalf.
I do private work alongside NHS sessions. How is that treated?
Private practice income is self-employment, not pensionable in the NHS scheme, and taxed with your other self-employed income. If the private work is substantial it may suit a limited company while the NHS locum work stays as a sole trader, and we advise on running both structures together.
What is the annual-only option?
For £199 we prepare your Self Assessment from the records you keep yourself, including the reconciliation of your engagement income and pension contributions. It suits locums with a small number of regular engagements who are organised. If records are incomplete, the monthly package is usually better value.
Do locum pharmacists and dentists have the same pension issues?
Dental associates and performers pension their NHS earnings through the dental pension arrangements with annual reconciliation statements; locum pharmacists generally have no NHS pension on locum income. Each profession has its own regime and we handle the specific paperwork for yours.
What does the £69 sole trader locum package include?
Monthly bookkeeping of all engagement income and expenses, reconciliation of pay statements and remittance advices, NHS pension contribution tracking, a monthly summary with the tax accruing, your Self Assessment with the self-employment and any employment pages prepared and filed, and payments on account calculated.
What does the £95 company package include?
Monthly bookkeeping, director payroll with RTI submissions, dividend paperwork, statutory accounts and CT600 filed, the confirmation statement filed (Companies House £50 fee separate), and deadline tracking. Your personal Self Assessment is added at the published £129 where needed, often necessary because of NHS employment income.
Which deadlines matter most for locum accountants?
The next four dates that apply to locum accountants are shown at the top of this page, calculated from today. For Isleworth clients we diarise every one of them from the day you join and send reminders before each, so the work is done in good time rather than in the last week before a penalty.
How do I get started from Isleworth?
Message us on WhatsApp or email with a sentence about your business and what you need. We reply in working hours with any questions and a fixed fee for locum accountants. Once you confirm, we tell you exactly which records to send and the work begins. Most Isleworth clients are set up within a day.
Let us take the deadlines off your plate in Isleworth
Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.