Bookkeeping · Central London
Bookkeeping services in Marylebone, Westminster
Bookkeeping for Marylebone sole traders and limited companies who want their numbers right without doing it themselves. We work entirely online, so you pay for the reconciliation and not for premises. Three volume bands cover almost every small business, and the VAT bundle adds quarterly returns for a fixed extra.
from £49/mo · fixed, per month
Next deadlines
- VAT return and payment for the quarter that ended last month
- MTD quarterly update deadline (7 August, 7 November, 7 February, 7 May)
- VAT return and payment for the quarter that ended last month
- VAT return and payment for the quarter that ended last month
Who this is for
Bookkeeping for Marylebone
Sole traders, partnerships and limited companies in Marylebone, Westminster with anything from a dozen to a few hundred bank transactions a month: trades, consultants, online sellers, cafes and shops, landlords with several properties, and anyone approaching the VAT threshold or Making Tax Digital for Income Tax who needs digital records kept properly.
What is included
Everything inside the fixed fee
- Cloud accounting software set up with bank feeds for every business account and card
- Every transaction categorised and reconciled each month, with queries sent to you in one batch
- Receipt and invoice capture by photo or email forwarding, matched to the bank
- Sales invoices, supplier bills and VAT coding kept current and Making Tax Digital-ready
- A monthly position summary: income, costs, cash, what you owe HMRC so far
- Year-end handover to our accounts team or your own accountant with no re-work
How it works
Bookkeeping from Marylebone, Westminster, step by step
Scope the job
We find out what you need filed, when it is due and what state the records are in, and tell you which fixed-fee package applies.
Agree the price
The fee is confirmed in writing. There is no hourly billing and nothing added for questions during the work.
Hand over the records
Photographs, PDFs, software access or a spreadsheet, sent however suits you. We confirm what we have and what is missing within two working days.
Approve, then we submit
You review the draft with our explanation, sign off, and we file. Receipts, copies and the next deadlines come back to you immediately.
Why IGI
Why Marylebone businesses file with IGI
One fixed fee for bookkeeping in Marylebone, Westminster, agreed in writing before any work starts and never changed part-way through the job, however long it takes us.
We work to the HMRC and Companies House calendar, not an appointment diary. Clients in Marylebone, Westminster get reminders at 60, 30 and 7 days before each date that applies to bookkeeping.
No appointments, no travel across Central London, no parking. Everything for bookkeeping in Marylebone happens online, with a real person on the other end during UK working hours.
A named person handles your bookkeeping from Marylebone and knows the file, so you are not re-explaining your business to a different helpdesk each time.
We explain bookkeeping in the words Marylebone, Westminster business owners use, not in accountant's shorthand, and we show our working so you can check it.
You stay in control of bookkeeping: drafts go to Marylebone clients first, with the figures explained, and nothing leaves us until you say so.
Local facts
About Marylebone, Westminster
Marylebone, Westminster is in Central London, within Westminster, in the W1U postcode district, England. For businesses in England the tax rules are those set by the UK Parliament: the 20/40/45% income tax bands, Class 4 National Insurance for the self-employed at 6% and 2%, Corporation Tax at 19% to 25%, and Stamp Duty Land Tax on property. Business rates are set locally by the council.
| Place | Distance | Direction |
|---|---|---|
| Marylebone High Street | 0.1 mi | E |
| Baker Street, Westminster | 0.4 mi | NW |
| West End of London | 0.4 mi | S |
| Bryanston and Dorset Square | 0.4 mi | W |
| Marble Arch | 0.5 mi | SW |
| Oxford Circus | 0.6 mi | SE |
| Mayfair | 0.6 mi | S |
| Fitzrovia | 0.6 mi | E |
Worth knowing
Rules that come up in this work
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.
Confirmation statements and identity verification
The confirmation statement is the annual check that the public register is right: officers, registered office, SIC codes, shareholders and the PSC register. It carries a £50 fee and no financial penalty for lateness, but failure to file leads to compulsory strike-off. The identity verification regime introduced in November 2025 has added a further check to every statement.
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.
Late filing penalties
HMRC's penalties for a late Self Assessment return are automatic: £100 the day after 31 January, £10 a day from three months late up to £900, then the greater of £300 or 5% of the tax at six and twelve months. Interest and separate late-payment penalties apply to the tax itself. Companies House charges £150 to £1,500 for late accounts, doubling for a second consecutive year.
Payments on account
If your Self Assessment bill exceeds £1,000 and less than 80% of your tax was collected at source, HMRC asks for two advance payments towards the following year, each half of the current bill, due 31 January and 31 July. The first year this happens the January payment is effectively one and a half times the bill. We model it in advance and show you how to reduce the payments if income is falling.
The Self Assessment calendar
Self Assessment runs on a fixed annual cycle. Registration by 5 October following the tax year, online filing and payment by 31 January, and a second instalment on 31 July for those making payments on account. The penalties for lateness are automatic and escalate monthly, which is why we file early and chase approvals well before the window closes.
Director's loan accounts
The most common tax problem in owner-managed companies is an overdrawn director's loan account: drawings taken during the year that were never declared as dividends or salary. The company faces a 35.75% charge on the balance outstanding nine months after the year end, and the director may have a benefit in kind. We review the account before every year end to clear it properly.
Questions
Bookkeeping questions from Marylebone
What if my volume changes?
We review the transaction count each quarter. If you move into a higher or lower band we tell you before the next invoice and adjust from the following month. There is no penalty for moving down and no back-charging for a busy month.
Do you do bookkeeping for landlords?
Yes. Rental income, agent statements, mortgage interest, repairs and the split between revenue and capital costs are all coded correctly for the property pages of your return. Portfolio landlords usually sit in the £49 or £89 band, and MTD for Income Tax applies to rental income as it does to trading income.
What is the VAT bundle?
Bookkeeping plus quarterly VAT returns for £119 a month, covering up to 150 transactions. Because we already have the coded transactions, the return is prepared and submitted through MTD-compatible software without extra data entry, and you approve it before anything goes to HMRC.
Can you catch up a backlog?
Yes. Backlogs are quoted as a fixed fee based on the number of months and transactions, agreed before we start. Once caught up, the normal monthly band applies. We tell you honestly if the backlog is small enough to do yourself.
How do you handle cash sales and personal spending from the business account?
Cash takings are recorded from your till or daily summary, and personal spending is coded to drawings or the director's loan account so it does not end up as a business expense. We flag patterns that could cause problems, such as a growing director's loan balance.
Will I need this for Making Tax Digital for Income Tax?
If you are a sole trader or landlord with qualifying income over £50,000 you joined MTD for Income Tax in April 2026, and the £30,000 threshold follows in April 2027. It requires digital records and quarterly updates to HMRC. Our bookkeeping service keeps the records in the required form and submits the updates.
Is bookkeeping in Marylebone really the same price as elsewhere?
Yes. The fee published on this page is what a client in Marylebone, Westminster pays and what a client in any other part of England pays. It is confirmed in writing before work starts and the invoice matches the quote. Where a higher package applies because your situation is more complex, we say so at the quote stage, never afterwards.
Do you have an office in Marylebone?
No. IGI Accounting is an online-only firm. We serve Marylebone, Westminster and every other UK postcode remotely, with records sent by WhatsApp or email and everything filed electronically. The absence of local premises is why the fee for bookkeeping is the same in Marylebone as anywhere else in the country, and why there is nothing to visit and nothing to print.
Get a fixed quote for Marylebone today
Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.