M25 Fringe · England
Accountants in South Mimms
Accountants for South Mimms who work to the deadline rather than the appointment diary. We handle Self Assessment, company accounts, Corporation Tax, bookkeeping, VAT and payroll for South Mimms 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 M25 Fringe 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 South Mimms and what it costs
The eight core services below each have a page for South Mimms; specialist and advisory services are delivered nationally and are listed further down. Every fee is fixed and confirmed in writing before work starts.
Why IGI
Working with South Mimms businesses
An online firm suits South Mimms 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 South Mimms clients the published fee and nothing more, with every submission approved by you before it goes.
Nothing is filed for South Mimms until you have reviewed and approved it. You see the draft, you ask questions, you sign off, then we submit and send you the receipt.
We explain self assessment tax returns in the words South Mimms business owners use, not in accountant's shorthand, and we show our working so you can check it.
We work to the HMRC and Companies House calendar, not an appointment diary. Clients in South Mimms get reminders at 60, 30 and 7 days before each date that applies to self assessment tax returns.
Local facts
About South Mimms
South Mimms sits in M25 Fringe, postcode district EN6. 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 |
|---|---|---|
| Mimms, South | 0.2 mi | SW |
| Ridge, M25 Fringe | 0.7 mi | SW |
| Bridgefoot, Hertsmere | 0.7 mi | E |
| Rabley | 0.9 mi | W |
| Dugdale Hill | 1 mi | E |
| Dancers Hill | 1 mi | SE |
| Ridgehill, M25 Fringe | 1 mi | NW |
| Holmshill | 2 mi | SW |
All places in M25 Fringe · M25 Fringe places beginning with S
National services
Also available to South Mimms clients
These services do not vary by location and are delivered the same way for South Mimms as for the rest of the UK.
- Limited by Guarantee Formation from £49
- Dormant Company Formation from £29
- Non-Resident UK Company Formation from £149
- Registered Office Address from £69/yr
- Confirmation Statement Filing £33
- Company Name Change £49
- Director Appointments & Resignations £29
- PSC Register Changes £39
- SIC Code Change £39
- Registered Office Address Change £29
- VAT Registration £49
- PAYE Employer Registration £49
- UTR Registration £29
- CIS Registration £49
- Dormant Company Accounts £49
- Make a Company Dormant £44
- Company Strike-Off & Dissolution £59
- CIS Tax Returns from £30/mo
- R&D Tax Credits from £999
- Crypto Tax from £199
- Capital Gains Tax from £149
- Landlord & Property Tax from £149
- Contractor Accountants from £75/mo
- Startup Accountants from £59/mo
- E-commerce Accountants from £79/mo
- Freelancer Accountants from £45/mo
- Small Business Accountants from £65/mo
- Locum Accountants from £69/mo
- Management Accounts from £99/mo
- Tax Planning from £249
- Business Advisory from £149
- Cash-Flow Forecasting from £199
- HMRC Investigation Support from £299
- Making Tax Digital from £99
- Accounting Software Support from £99
Worth knowing
Rules that affect most businesses here
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
Good records are the difference between a quick enquiry and a long one. For the self-employed, five years after the filing deadline; for companies, six years from the year end; for VAT, six years. Photographs of receipts, PDF statements and software exports all count. The requirement is to keep records, not paper, and a well-organised cloud folder satisfies it.
Workplace pensions and auto-enrolment
Every employer must assess its workers for automatic enrolment from the first employee's start date. Those aged 22 to State Pension age earning over £10,000 a year must be enrolled into a qualifying pension with minimum contributions of 8% of qualifying earnings, at least 3% from the employer, and a declaration of compliance made to the Pensions Regulator within five months.
Employer National Insurance
Since April 2025 employer National Insurance has been 15% on earnings above a £5,000 secondary threshold, a substantial increase for small employers. The Employment Allowance rose to £10,500 at the same time to soften it for the smallest businesses. Directors deciding their own salary weigh this cost against the Corporation Tax deduction a salary provides.
The trading and property allowances
The first £1,000 of trading income and, separately, the first £1,000 of property income each year is tax free under the trading and property allowances. Below those figures no return is needed for that income. Above them you can deduct the £1,000 allowance instead of actual expenses if that is better, which suits side businesses and single-room lets with few costs.
Questions
Questions from South Mimms
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 South Mimms 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 South Mimms 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 M25 Fringe that are not in South Mimms itself?
Yes. Every place in M25 Fringe 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 South Mimms 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 South Mimms: records in, draft out, approve, filed.
How do I get started from South Mimms?
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 South Mimms 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 South Mimms 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 South Mimms
Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.