Freelancer Accountants · South West London
Freelancer accountants in St. Mark's
Freelancing from St. Mark's means irregular income, a January tax bill that depends on a year you have half forgotten, and expenses scattered across personal cards. We tidy it monthly, tell you what to set aside, and file the return. The £99 starter session gets new freelancers set up properly before the first invoice. Fixed fees, online.
from £45/mo · fixed, per month
Next deadlines
- Online Self Assessment filing deadline and balancing payment due
- Making Tax Digital for Income Tax: quarterly updates for sole traders and landlords over £50,000 (from April 2026) and over £30,000 (from April 2027)
- Second payment on account due
- Companies House accounts due 9 months after your year end (a 31 December year end files by 30 September)
Who this is for
Freelancer Accountants for St. Mark's
Freelancers and independent professionals in St. Mark's: designers, developers, writers and editors, marketers, photographers and videographers, consultants, translators, musicians and performers, tutors and coaches, whether trading as a sole trader, through a limited company, or still deciding, and whether full time or alongside employment.
What is included
Everything inside the fixed fee
- Monthly bookkeeping from your bank feed with invoices and expenses captured by phone
- Self Assessment with the self-employment pages for sole trader freelancers, or accounts, CT600 and payroll for company freelancers
- Expense review for the costs freelancers miss: home office, equipment, software, subscriptions, training, travel
- Payments on account and a monthly set-aside figure so the January bill is never a surprise
- Making Tax Digital readiness and quarterly updates when your income reaches the threshold
- A going-freelance starter session covering structure, registration, pricing for tax and what to keep
How it works
Freelancer Accountants from St. Mark's, 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
The IGI way of working, in St. Mark's
No hourly rate and no surprise invoice. St. Mark's clients know the fee for freelancer accountants before they send a single document, and it stays fixed.
Deadline-first: the dates that matter for freelancer accountants are shown at the top of this page, diarised for every St. Mark's client and chased before they arrive.
Online only, UK based. There is no office in St. Mark's 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.
You get one contact for freelancer accountants, not a queue. St. Mark's 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 St. Mark's comes with a short explanation of what the figures mean and what, if anything, you should do about them.
Approval before filing is a rule, not a courtesy. For freelancer accountants in St. Mark's, every submission to HMRC or Companies House follows your written go-ahead.
Local facts
About St. Mark's
St. Mark's is in South West London, within Kingston upon Thames, in the KT6 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 |
|---|---|---|
| Surbiton | 0.2 mi | SW |
| Seething Wells | 0.4 mi | SW |
| Berrylands | 0.7 mi | E |
| Kingston upon Thames | 1.0 mi | N |
| Surbiton Hill | 1.0 mi | E |
| Southborough | 1 mi | S |
| Ditton, Long | 1 mi | SW |
| Long Ditton | 1 mi | SW |
Worth knowing
Rules that come up in this work
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.
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.
Allowable expenses
The expenses sole traders most often miss are home working costs, claimed by actual proportion or HMRC's flat rate, the business share of phone and internet, mileage at 45p for the first 10,000 business miles, and training that maintains existing skills. The ones most often claimed wrongly are commuting, entertaining customers and clothes that could be worn outside work.
Record keeping
Record keeping is a legal obligation with a penalty of up to £3,000 for failure, but its real value is in making every other filing cheaper and more defensible. Keep invoices, receipts, bank statements, mileage logs and any HMRC correspondence, digitally if you like, for five years after the relevant filing deadline for individuals and six years for companies and VAT.
Closing a company
Voluntary strike-off is available only to solvent companies. One that owes money it cannot pay needs a creditors' voluntary liquidation through a licensed insolvency practitioner, and directors who dissolve an insolvent company face personal consequences. For a solvent company the process takes three to four months from filing the DS01, with notice to creditors and shareholders within seven days.
Switching accountants
You can switch accountant at any point in the year. The new firm requests clearance and your records from the old one, which cannot withhold your own documents though it may hold its own working papers until its fees are settled. Agent authorisations with HMRC and Companies House are transferred, and the next deadline is picked up without a gap.
CIS deductions
The Construction Industry Scheme affects both sides of a construction payment. Contractors must verify subcontractors, deduct the right amount, issue statements and file monthly, with penalties from £100 for each late return. Subcontractors suffer deductions on turnover and recover the excess at the year end. Limited company subcontractors offset deductions against PAYE monthly instead.
Questions
Freelancer Accountants questions from St. Mark's
How do you handle irregular and overseas income?
Irregular income is normal for freelancers and the monthly summary shows the year-to-date position so lean months are planned for. Overseas clients are invoiced without UK VAT in most cases, and any foreign tax withheld can usually be credited against your UK liability. Both are handled within the package.
Do I need to register for VAT?
Only when your taxable turnover in any rolling 12 months exceeds £90,000, or voluntarily before that. Many freelancers with business clients register voluntarily to reclaim VAT on equipment; those with consumer clients usually wait. We monitor your rolling turnover and advise before the threshold is reached.
What is the annual-only option?
For £229 a year we prepare your year-end accounts and Self Assessment from the records you keep yourself, whether in software or a spreadsheet. It suits freelancers with modest transaction volumes who are organised. If the records arrive as a shoebox, the sole trader accounts shoebox fee applies instead.
Should I be a sole trader or a limited company?
At profits under roughly £30,000 to £40,000 a sole trader is simpler and the tax saving from a company is small after the extra compliance cost. Above that, or where clients prefer to contract with a company or liability is a concern, incorporation can make sense. Our free comparison tool gives a first view and the starter session a definitive one.
What does the £79 company package include?
Monthly bookkeeping, director payroll with RTI submissions, dividend paperwork, the annual statutory accounts and CT600 filed with Companies House and HMRC, the confirmation statement filed (Companies House £50 fee separate), and deadline tracking. Your personal Self Assessment is added at the published £129 if needed.
What does the £45 sole trader package include?
Monthly bookkeeping from your bank feed with receipts captured by phone, a monthly summary showing profit and the tax accruing, your Self Assessment with the self-employment pages prepared and filed, payments on account calculated, and deadline tracking. Software is in your name and billed to you separately.
How do I get started from St. Mark's?
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 freelancer accountants. Once you confirm, we tell you exactly which records to send and the work begins. Most St. Mark's clients are set up within a day.
Which deadlines matter most for freelancer accountants?
The next four dates that apply to freelancer accountants are shown at the top of this page, calculated from today. For St. Mark's 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.
Start the conversation from St. Mark's
Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.