Accounting

Bookkeeping · South West London

Bookkeeping services in Mortlake

If you run a business in Mortlake and bookkeeping is the job that never gets done, hand it to us. We connect your bank, you forward receipts by WhatsApp or email, and each month the books are reconciled and ready for VAT, Making Tax Digital or year end. One monthly fee, published on this page, identical across South West London.

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 Mortlake

Sole traders, partnerships and limited companies in Mortlake 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 Mortlake, step by step

  1. 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.

  2. 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.

  3. 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.

  4. 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 Mortlake

One fixed fee for bookkeeping in Mortlake, agreed in writing before any work starts and never changed part-way through the job, however long it takes us.

Nothing for Mortlake is left to the last week. Each deadline relevant to bookkeeping is tracked from the day you join, with the next four shown on every page we send you.

No appointments, no travel across South West London, no parking. Everything for bookkeeping in Mortlake happens online, with a real person on the other end during UK working hours.

You get one contact for bookkeeping, not a queue. Mortlake clients message the same person throughout and get an answer in working hours, usually within a few hours.

The output for Mortlake clients is never just a form. It is the form, a one-page summary of what it says, and a note of the decisions it points to for bookkeeping.

Approval before filing is a rule, not a courtesy. For bookkeeping in Mortlake, every submission to HMRC or Companies House follows your written go-ahead.

Local facts

About Mortlake

Mortlake is in South West London, within Richmond upon Thames, in the SW14 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.

Nearby places we also serve for bookkeeping
PlaceDistanceDirection
East Sheen0.5 miS
Mortlake and Barnes Common0.8 miE
North Sheen0.8 miW
Barnes0.9 miE
Kew0.9 miNW
Chiswick Riverside0.9 miN
Kew Green1 miNW
Chiswick Homefields1 miNE

Worth knowing

Rules that come up in this work

Payments on account

Payments on account catch out most people in their second year of self-employment. HMRC assumes next year's tax will match this year's and collects half in January and half in July, in advance, on top of the balancing payment. If profits are dropping you can apply to reduce them, but reducing them too far attracts interest. We calculate the right figure rather than guessing.

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.

Employer National Insurance

Employers pay National Insurance at 15% on each employee's earnings above the £5,000 secondary threshold, following the April 2025 changes. The Employment Allowance offsets up to £10,500 of this for eligible employers, which for a small team often removes the liability entirely, but companies where the director is the only employee do not qualify.

Workplace pensions and auto-enrolment

Auto-enrolment duties begin the day you take on your first employee, not when the Pensions Regulator writes to you. Eligible staff must be enrolled, contributions paid every pay period and re-enrolment carried out every three years. Director-only companies without employment contracts are usually exempt. Fines for non-compliance are fixed and escalating.

Dormant companies

A dormant company is one with no significant accounting transactions in the year, where the only permitted entries are the payment for shares on incorporation, Companies House fees and penalties. It still files a confirmation statement and simplified dormant accounts every year. A bank charge or an accountant's fee paid from the company ends dormancy and requires full accounts.

The trading and property allowances

Small side incomes are covered by two £1,000 allowances, one for trading and one for property, which remove the need to register or report income below that level. Once income exceeds £1,000, the allowance can be used in place of expenses, a choice worth making deliberately: a freelancer with £900 of costs is better off with the allowance, one with £3,000 is not.

Questions

Bookkeeping questions from Mortlake

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 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.

What do I have to do each month?

Forward or photograph receipts and supplier bills as they arrive, and answer one batch of queries from us about transactions we cannot identify. Most clients spend under an hour a month. Sales invoices can be raised in the software by you or by us.

Is bookkeeping the same as accounts?

No. Bookkeeping is the ongoing recording and reconciling of transactions. Accounts and tax returns are the year-end filings built from those records. Clean bookkeeping makes the year-end work faster and cheaper, which is why our sole trader accounts fee from tidy records is £149 and from a shoebox is £249.

How do you count transactions for the fee?

Every line on your business bank and card statements for the month, including payments in and out. Transfers between your own accounts are excluded. Up to 50 lines is £49 a month, up to 150 is £89, up to 300 is £149. We check the count from your statements before quoting so the band is right from the start.

Which software do you use and who pays for it?

We work in the main cloud platforms that are compatible with Making Tax Digital and set up the one that suits your business. The subscription is in your name and billed to you by the software company, typically £15 to £35 a month, so you own the data and can leave at any time with your records intact.

Do you have an office in Mortlake?

No. IGI Accounting is an online-only firm. We serve Mortlake 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 Mortlake as anywhere else in the country, and why there is nothing to visit and nothing to print.

Is bookkeeping in Mortlake really the same price as elsewhere?

Yes. The fee published on this page is what a client in Mortlake 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.

Let us take the deadlines off your plate in Mortlake

Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.

WhatsApp for a fixed quote