Accounting

Startup Accountants · South East London

Startup accountants in Blackfen

If you are starting a company in Blackfen, the accounting decisions you make in the first three months, share structure, VAT registration timing, how founders are paid, whether to seek SEIS assurance, shape the next three years. We get them right for startups across South East London, online, for a monthly fee agreed before you join.

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 Blackfen

New and early-stage companies in Blackfen: 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 Blackfen, step by step

  1. Tell us your situation

    A short message or call about what you do and what needs filing. We ask the questions that determine the right package and nothing more.

  2. Fixed fee in writing

    You receive one price for the work, confirmed by email before anything starts. It does not change if the job takes longer than we expected.

  3. Send records, review the draft

    Records come by WhatsApp or email. We prepare the draft, explain the figures in plain English and answer your questions.

  4. We file, you get the receipts

    Once you approve and the fee is settled, we submit electronically and forward the HMRC or Companies House acknowledgement the same day.

Why IGI

Why Blackfen businesses file with IGI

The price for startup accountants is published on this page and is what a client in Blackfen pays. We confirm it in writing first, and the invoice matches the quote.

Deadline-first: the dates that matter for startup accountants are shown at the top of this page, diarised for every Blackfen client and chased before they arrive.

Online only, UK based. There is no office in Blackfen 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.

Continuity matters in startup accountants: the person who prepared last year's work for your Blackfen business prepares this year's, and remembers what was agreed.

Plain English, with the numbers. Every draft for Blackfen comes with a short explanation of what the figures mean and what, if anything, you should do about them.

You stay in control of startup accountants: drafts go to Blackfen clients first, with the figures explained, and nothing leaves us until you say so.

Local facts

About Blackfen

Blackfen is in South East London, within Bexley, in the DA15 postcode district, England. Income tax in England follows the UK rates: 20% basic to £50,270, 40% higher to £125,140 and 45% additional, with the personal allowance of £12,570 tapered away above £100,000. National Insurance, VAT and Corporation Tax are UK-wide, and Stamp Duty Land Tax applies to property purchases.

Nearby places we also serve for startup accountants
PlaceDistanceDirection
The Oval Sidcup0.3 miS
Blackfen and Lamorbey0.6 miSW
Falconwood and Welling0.6 miNW
Blendon and Penhill0.7 miSE
Blendon0.8 miE
Danson Park0.8 miNE
Welling0.9 miNE
Avery Hill1.0 miW

Worth knowing

Rules that come up in this work

Salary versus dividends

The salary-and-dividend split is the central planning decision for an owner-managed company. Salary costs employer National Insurance above £5,000 but is deductible; dividends are not deductible but attract lower personal rates and no National Insurance. The optimum changes each April with the thresholds and depends on the director's other income, so it should be set deliberately every year.

Director's loan accounts

A director's loan account records money moving between a director and the company that is not salary or dividend. If the director owes the company money nine months and one day after the year end, the company pays section 455 tax at 35.75% of the balance, refundable only when the loan is repaid. Loans over £10,000 are also a benefit in kind unless interest is charged at HMRC's official rate.

The VAT registration threshold

VAT registration is compulsory once taxable turnover in any rolling twelve-month period exceeds £90,000, or when you expect to exceed that in the next thirty days alone. The test is rolling, not by tax year, and includes zero-rated sales. Businesses regularly cross it without noticing, and late registration means accounting for VAT on sales where it was never charged to customers.

Corporation Tax rates and marginal relief

Corporation Tax is not a flat rate. Profits to £50,000 pay 19%, profits above £250,000 pay 25%, and the band between is taxed at an effective marginal rate of 26.5% through the marginal relief mechanism. Associated companies share the thresholds, which catches directors who own more than one company and is the most common cause of underpaid tax in owner-managed groups.

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.

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.

The Self Assessment calendar

Self Assessment runs on a fixed annual cycle. Registration by 5 October following the tax year, online filing and payment by 31 January, and a second instalment on 31 July for those making payments on account. The penalties for lateness are automatic and escalate monthly, which is why we file early and chase approvals well before the window closes.

Questions

Startup Accountants questions from Blackfen

Can I switch to you from another accountant mid-year?

Yes. We request your records and professional clearance from the previous firm, pick up the bookkeeping where they left off and take over the filings. There is no charge for the switch and the first month's fee is the same as any other.

What if the startup fails?

Then the company needs to be closed properly: final accounts, final CT600, deregistration from VAT and PAYE, and a strike-off application or, if there are debts it cannot pay, a formal insolvency process. Our strike-off service with final accounts is from £349. SEIS investors can claim loss relief, which softens their outcome.

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.

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.

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.

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.

Do you have an office in Blackfen?

No. IGI Accounting is an online-only firm. We serve Blackfen 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 startup accountants is the same in Blackfen as anywhere else in the country, and why there is nothing to visit and nothing to print.

Is startup accountants in Blackfen really the same price as elsewhere?

Yes. The fee published on this page is what a client in Blackfen 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.

Let us take the deadlines off your plate in Blackfen

Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.

WhatsApp for a fixed quote