South London · England
Accountants in Carshalton
If you run a business or have a tax return to file in Carshalton, this page lists what we do, what it costs and when it is due. The fees are fixed and identical to those for every other place in South London. We serve Carshalton remotely, which means no travel, no appointments and no premises to pay for, and we track the HMRC and Companies House deadlines so that you do not have to.
Next deadlines
- VAT return and payment for the quarter that ended last month
- VAT return and payment for the quarter that ended last month
- VAT return and payment for the quarter that ended last month
- Confirmation statement due within 14 days of your review date, at least once every 12 months
Services
What we do for Carshalton and what it costs
All 26 services below are available to Carshalton clients at the published fee. Every fee is fixed and confirmed in writing before work starts.
Why IGI
Working with Carshalton businesses
We built the service around what business owners in places like Carshalton actually complain about: not knowing what the accountant will charge, finding out about a deadline after it has passed, and receiving a set of accounts with no explanation. Each is fixed by design: fixed fees, deadline tracking shown on every page, and a plain-English summary with every draft for Carshalton clients.
Continuity matters in self assessment tax returns: the person who prepared last year's work for your Carshalton business prepares this year's, and remembers what was agreed.
Online only, UK based. There is no office in Carshalton to pay for, which is why the fee is the same here as anywhere in England; the work is done by people in the UK who answer the same day.
We work to the HMRC and Companies House calendar, not an appointment diary. Clients in Carshalton get reminders at 60, 30 and 7 days before each date that applies to self assessment tax returns.
Local facts
About Carshalton
Carshalton sits in South London, within Sutton (Carshalton Central ward), postcode district SM5. 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 |
|---|---|---|
| Carshalton Village | 0.2 mi | W |
| Wallington Green | 0.3 mi | E |
| Carshalton Central | 0.4 mi | W |
| Wallington North | 0.5 mi | E |
| The Wrythe | 0.7 mi | NW |
| Carshalton Beeches | 0.7 mi | SW |
| Wallington, Sutton | 0.7 mi | SE |
| Sutton, South London | 0.8 mi | SW |
All places in South London · South London places beginning with C
Worth knowing
Rules that affect most businesses here
Making Tax Digital for Income Tax
MTD for Income Tax replaces one annual return with quarterly digital updates and a year-end declaration, submitted from software. The threshold is gross trading and property income, measured two years earlier, and started at £50,000 in April 2026 before falling to £30,000 in April 2027. Anyone affected needs digital record keeping in place before their start date, not after.
Late filing penalties
Penalties are the clearest reason to work to deadlines. A Self Assessment return one day late costs £100 regardless of whether any tax is due; three months late adds £10 a day. Late company accounts start at £150 and reach £1,500, and double if the previous year was also late. None of this is negotiable afterwards except through a narrow reasonable-excuse appeal.
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.
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.
Director's loan accounts
Money taken from a company has to be something: salary, dividend, expense reimbursement or loan. If it is a loan and remains outstanding nine months after the year end, the company pays tax at the dividend higher rate on it until it is repaid. Clearing the balance with a properly declared dividend before the deadline, where reserves allow, is routine year-end work.
Questions
Questions from Carshalton
Why are the fees the same in Carshalton as in London?
Because the cost of an accountant is mostly premises and that is a cost we do not have. The work is done online by UK-based staff, so a client in Carshalton pays exactly the published fee, as does a client in central London or a Highland village. The fee is confirmed in writing before anything starts.
Which services are available in Carshalton?
Every service on this page is available to businesses and individuals in Carshalton, at the fee shown. Core compliance work, accounts, tax returns, bookkeeping, VAT, payroll and company formation, is listed with its own local page. Specialist services such as R&D, crypto tax and HMRC enquiry support are national services delivered the same way from anywhere in the UK.
I already have an accountant in Carshalton. How hard is it to switch?
It takes about two weeks and costs nothing extra. You authorise us, we write to your current accountant for professional clearance and your records, and we transfer the agent authorisations. We pick up the next filing without a gap. You do not need to wait for a year end, and we tell you honestly if switching mid-job would be awkward.
Can you deal with HMRC and Companies House for me?
Yes. Once you authorise us as your agent, HMRC and Companies House correspond with us about the filings we make for your Carshalton business, and we can see your accounts and respond on your behalf. Authorisation is free and takes a few days to activate. Routine correspondence about work we have filed is handled at no extra charge.
Is self assessment tax returns in Carshalton really the same price as elsewhere?
Yes. The fee published on this page is what a client in Carshalton 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 Carshalton?
No. IGI Accounting is an online-only firm. We serve Carshalton 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 self assessment tax returns is the same in Carshalton as anywhere else in the country, and why there is nothing to visit and nothing to print.
Start the conversation from Carshalton
Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.