Startup Accountants · South West London
Startup accountants in Trinity, Merton
Founders in Trinity have better things to do than learn Corporation Tax. We take the compliance off the table from the start: company formed properly, registrations done, books set up in software that will scale, and the first-year deadlines tracked so nothing is missed while you build. Monthly fixed fee, cancel with a month's notice.
from £59/mo · fixed, per month
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
Who this is for
Startup Accountants for Trinity
New and early-stage companies in Trinity, Merton: founders incorporating for the first time, technology and product startups preparing to raise seed investment, service businesses moving from side project to full time, two or three co-founders who need the equity and payroll structured properly, and companies in their first two years who set up alone and want it done properly now.
What is included
Everything inside the fixed fee
- Company formation and HMRC registrations in the Launch package, or a review of what has already been set up
- Cloud bookkeeping configured for a growing business, with bank feeds and expense capture from day one
- Annual accounts and Corporation Tax return, with first-period and long-period rules handled
- VAT registration timing advised and quarterly returns run in the Grow and Scale packages
- Payroll for founders and first hires, with auto-enrolment, in the Scale package
- SEIS and EIS advance assurance applications prepared for founders raising investment
How it works
Startup Accountants from Trinity, Merton, 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 Trinity
The price for startup accountants is published on this page and is what a client in Trinity pays. We confirm it in writing first, and the invoice matches the quote.
Nothing for Trinity is left to the last week. Each deadline relevant to startup accountants 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 startup accountants in Trinity happens online, with a real person on the other end during UK working hours.
A named person handles your startup accountants from Trinity and knows the file, so you are not re-explaining your business to a different helpdesk each time.
The output for Trinity 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 startup accountants.
Nothing is filed for Trinity 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.
Local facts
About Trinity, Merton
Trinity, Merton is in South West London, within Merton, in the SW19 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 |
|---|---|---|
| South Wimbledon | 0.5 mi | S |
| Abbey, Merton | 0.6 mi | S |
| Wimbledon | 0.6 mi | W |
| Colliers Wood | 0.7 mi | SE |
| Merton | 0.8 mi | S |
| Wimbledon Park | 0.9 mi | N |
| Summerstown, Wandsworth | 0.9 mi | NE |
| Merton Park | 1 mi | SW |
Worth knowing
Rules that come up in this work
Corporation Tax rates and marginal relief
Companies pay Corporation Tax at 19% on profits up to £50,000 and 25% on profits over £250,000. Between those figures marginal relief applies, producing an effective rate that rises gradually and a marginal rate of 26.5% on each pound in the band. The thresholds are divided by the number of associated companies, so a director with two companies has thresholds of £25,000 and £125,000 for each.
The VAT registration threshold
Watching the rolling twelve-month turnover figure is one of the quiet jobs of monthly bookkeeping, because the £90,000 VAT threshold arrives silently. Crossing it brings quarterly returns, Making Tax Digital software and a decision about schemes. Crossing it late brings a bill for VAT you could not recover from customers and a penalty for failing to notify.
Director's loan accounts
The most common tax problem in owner-managed companies is an overdrawn director's loan account: drawings taken during the year that were never declared as dividends or salary. The company faces a 35.75% charge on the balance outstanding nine months after the year end, and the director may have a benefit in kind. We review the account before every year end to clear it properly.
Salary versus dividends
Paying yourself from a company involves two routes with different tax treatment. Salary through payroll is a company expense and builds a National Insurance record; dividends come from post-tax profit at lower personal rates. Undocumented drawings that are neither become director's loans, with a 35.75% section 455 charge if not repaid within nine months of the year end.
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.
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.
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.
Questions
Startup Accountants questions from Trinity
What do investors expect to see in the accounts?
Clean, current bookkeeping; a cap table that matches Companies House; founder payments properly documented; VAT and PAYE up to date; and management accounts showing runway. Due diligence on a seed round routinely finds undocumented director's loans and unfiled confirmation statements, both of which cost time at exactly the wrong moment.
Do I need a separate business bank account?
Legally the company must have its own account because it is a separate person from you; using a personal account mixes funds and creates director's loan problems. Digital business banks open accounts quickly for new companies, and we connect the feed to your software as part of setup.
How should co-founders be paid?
Early on, often not at all, with equity as the reward. Once the company can afford it, a modest salary through payroll keeps National Insurance records intact and is deductible. Dividends require distributable profits, which loss-making startups do not have. Director's loans are a trap. We set the structure to suit the cash position.
Should I register for VAT before I have to?
If your customers are VAT-registered businesses, early voluntary registration lets you reclaim VAT on setup costs with no real cost to customers. If you sell to consumers, registration adds 20% to your price or cuts your margin, so waiting until the £90,000 threshold is usually better. We model it for your business.
When do I need Grow or Scale?
Grow at £99 adds monthly bookkeeping and quarterly VAT returns, and suits most startups once transactions and VAT registration arrive. Scale at £149 adds payroll for founders and first hires with auto-enrolment, plus quarterly management accounts for the board or investors. You can move between packages at any month end.
What does the £59 Launch package include?
Company formation with the Companies House £100 fee passed on separately, Corporation Tax and PAYE registration, a registered office if you want one, cloud software set up, the first confirmation statement and the first set of accounts and CT600 filed. It is for founders who will keep their own books in the early months.
How do I get started from Trinity, Merton?
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 startup accountants. Once you confirm, we tell you exactly which records to send and the work begins. Most Trinity clients are set up within a day.
Which deadlines matter most for startup accountants?
The next four dates that apply to startup accountants are shown at the top of this page, calculated from today. For Trinity 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 Trinity
Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.