South East London · England
Accountants in Sydenham, Lewisham
Accountants for Sydenham, Lewisham who work to the deadline rather than the appointment diary. We handle Self Assessment, company accounts, Corporation Tax, bookkeeping, VAT and payroll for Sydenham clients at the fixed fees shown on this page, and the next dates that apply to your business are tracked from the day you join. There is no office in South East London to visit, because none of the work needs one.
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 Sydenham and what it costs
All 26 services below are available to Sydenham, Lewisham clients at the published fee. Every fee is fixed and confirmed in writing before work starts.
Why IGI
Working with Sydenham businesses
An online firm suits Sydenham because the things that matter in accounting, accuracy, deadlines, clear explanations and a known price, do not depend on geography. What does depend on geography is overhead, and by not carrying it we charge Sydenham, Lewisham clients the published fee and nothing more, with every submission approved by you before it goes.
Deadline-first: the dates that matter for self assessment tax returns are shown at the top of this page, diarised for every Sydenham client and chased before they arrive.
The price for self assessment tax returns is published on this page and is what a client in Sydenham pays. We confirm it in writing first, and the invoice matches the quote.
You get one contact for self assessment tax returns, not a queue. Sydenham, Lewisham clients message the same person throughout and get an answer in working hours, usually within a few hours.
Local facts
About Sydenham, Lewisham
Sydenham, Lewisham sits in South East London, within Lewisham, postcode district SE26. 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 |
|---|---|---|
| New Beckenham | 0.6 mi | SE |
| Bell Green, Lewisham | 0.7 mi | NE |
| Perry Vale | 0.7 mi | NE |
| Penge and Cator | 0.8 mi | S |
| Lower Sydenham | 0.8 mi | E |
| Forest Hill, Lewisham | 0.9 mi | N |
| Penge | 0.9 mi | S |
| Crystal Palace | 1.0 mi | SW |
All places in South East London · South East London places beginning with S
Worth knowing
Rules that affect most businesses here
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
Four dates govern Self Assessment: 5 October to register, 31 October for paper returns, 31 January to file online and pay, and 31 July for the second payment on account. Missing the January date triggers an automatic £100 penalty before any tax is even considered, so we treat it as the fixed point around which the rest of the year is planned.
The 60-day property CGT return
The 60-day Capital Gains Tax return on residential property is the deadline landlords most often miss, because it falls outside the Self Assessment cycle and runs from completion, not exchange. Private residence relief for periods you lived in the property, plus the final nine months, reduces the gain. Penalties for a late return mirror Self Assessment, starting at £100.
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.
Crypto records and reporting
Most crypto holders have taxable events they do not recognise, because every swap is a disposal even when no pounds change hands. The computation requires the complete transaction history from every exchange and wallet, pooled by asset with HMRC's matching rules applied. Exchange-generated tax reports are frequently wrong because they cannot see transfers between a user's own wallets.
Questions
Questions from Sydenham
Are your fees inclusive of everything?
Our fee covers the work described for the package. Companies House fees, such as £100 to incorporate or £50 for a confirmation statement, are charged separately and passed on at cost. Software subscriptions are in your own name. There is nothing else: no hourly extras, no charge for questions, and no additional year-end invoice for Sydenham, Lewisham clients on monthly packages.
How quickly do you respond?
In UK working hours, usually within a few hours and always the same working day. Each Sydenham client has a named contact who knows the file. Outside working hours, WhatsApp and email messages are picked up first thing the next morning. In January and at other peak times we tell you your turnaround when you book rather than leaving you guessing.
Do you work with businesses in South East London that are not in Sydenham itself?
Yes. Every place in South East London has its own page on this site and the same fees apply throughout. The nearest-places list on this page links to them. Wherever in England your business is based, the service is identical because none of it depends on where you are.
What if my Sydenham business is a partnership or an LLP?
Both are covered. Partnerships need a partnership return and a Self Assessment for each partner; LLPs file accounts with Companies House under company-style rules as well. We quote a fixed fee for the set based on the number of partners or members, and the process is the same as for any other client in Sydenham, Lewisham: records in, draft out, approve, filed.
How do I get started from Sydenham, Lewisham?
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 self assessment tax returns. Once you confirm, we tell you exactly which records to send and the work begins. Most Sydenham clients are set up within a day.
Which deadlines matter most for self assessment tax returns?
The next four dates that apply to self assessment tax returns are shown at the top of this page, calculated from today. For Sydenham 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.
Fixed fees, filed on time, for Sydenham
Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.