Accounting

Contractor Accountants · South West London

Contractor accountants in Crooked Billet

IT, engineering, finance and healthcare contractors in Crooked Billet use us because the service is built for how they work: a company with one or two directors, income from a few clients a year, and an IR35 question on every new engagement. Fixed monthly packages across South West London, with an IR35 contract review at £99 whenever you need one.

from £75/mo · fixed, per month

Next deadlines

  • PAYE and National Insurance for last month paid to HMRC (electronic)
  • PAYE and National Insurance for last month paid to HMRC (electronic)
  • PAYE and National Insurance for last month paid to HMRC (electronic)
  • Online Self Assessment filing deadline and balancing payment due

Who this is for

Contractor Accountants for Crooked Billet

Contractors and interim professionals in Crooked Billet working through their own limited company: IT and software contractors, engineers, project managers, interim finance staff, consultants, medical and allied health locums who have incorporated, and permanent employees about to go contracting who need the company set up and the first engagement reviewed.

What is included

Everything inside the fixed fee

  • Statutory accounts and Corporation Tax return prepared and filed each year
  • Director payroll run monthly with RTI submissions and the salary set at the efficient level
  • Dividend vouchers and board minutes for every distribution, with the available reserves checked first
  • Quarterly VAT returns and bookkeeping in the Plus and Complete packages
  • Director's Self Assessment and an annual planning call in the Complete package
  • IR35 status reviews of your contracts and working practices, with a written opinion

How it works

Contractor Accountants from Crooked Billet, 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 Crooked Billet businesses file with IGI

No hourly rate and no surprise invoice. Crooked Billet clients know the fee for contractor accountants before they send a single document, and it stays fixed.

We work to the HMRC and Companies House calendar, not an appointment diary. Clients in Crooked Billet get reminders at 60, 30 and 7 days before each date that applies to contractor accountants.

We serve Crooked Billet remotely by design: records by WhatsApp or email, drafts back for approval, filing electronic. The saving on premises is passed to you in the fee for contractor accountants.

A named person handles your contractor accountants from Crooked Billet and knows the file, so you are not re-explaining your business to a different helpdesk each time.

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

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

Local facts

About Crooked Billet

Crooked Billet is in South West London, within Merton, in the SW19 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 contractor accountants
PlaceDistanceDirection
Wimbledon Village0.5 miNE
Cottenham Park0.6 miSW
West Wimbledon0.7 miSW
Wimbledon Common0.8 miNW
Raynes Park0.9 miS
Wimbledon0.9 miE
Putney Heath1 miN
Merton Park1 miSE

Worth knowing

Rules that come up in this work

Confirmation statements and identity verification

The confirmation statement is the annual check that the public register is right: officers, registered office, SIC codes, shareholders and the PSC register. It carries a £50 fee and no financial penalty for lateness, but failure to file leads to compulsory strike-off. The identity verification regime introduced in November 2025 has added a further check to every statement.

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.

Late filing penalties

HMRC's penalties for a late Self Assessment return are automatic: £100 the day after 31 January, £10 a day from three months late up to £900, then the greater of £300 or 5% of the tax at six and twelve months. Interest and separate late-payment penalties apply to the tax itself. Companies House charges £150 to £1,500 for late accounts, doubling for a second consecutive year.

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.

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.

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.

Questions

Contractor Accountants questions from Crooked Billet

I am about to leave permanent employment to contract. Where do I start?

With the company formation and the first contract review. Our £99 formation-plus-registrations package sets up the company with Corporation Tax and PAYE registered; the IR35 review of your first engagement decides how the income will be taxed. Join the Essential package from the month you start invoicing.

Do I need business insurance?

Most client contracts require professional indemnity and public liability cover, and employer's liability is a legal requirement if the company employs anyone other than the director. Insurance is not something we sell, but we tell you what your contracts require and the premiums are deductible for Corporation Tax.

How are dividends documented?

Each dividend needs a board minute approving it and a dividend voucher recording the date, amount and shareholder. The company must have sufficient distributable profits after tax at the time. We check the reserves before each dividend, produce the paperwork and keep it on file, because undocumented dividends are reclassified by HMRC as salary or loans.

What is the flat rate VAT scheme and should I use it?

For most contractors with low costs the limited-cost-trader rate of 16.5% removes any advantage of the flat rate scheme, and the standard scheme reclaiming input VAT on equipment and software is better. Contractors with significant qualifying costs may differ. We calculate both at registration and review annually.

My client has put me inside IR35. Should I still use my company?

It can still be worth it if you have other outside-IR35 work, but for a single inside-IR35 engagement an umbrella company or direct PAYE is often simpler and cheaper. We run the comparison for your specific numbers and tell you honestly, even if the answer is that you do not need us for that contract.

Can I claim travel and subsistence?

For engagements outside IR35, travel to a client site that is a temporary workplace is claimable, subject to the 24-month rule: once you know an engagement will exceed 24 months at the same site, it stops being temporary. Subsistence follows the travel. Inside-IR35 engagements lose these claims. We check each engagement.

Do you have an office in Crooked Billet?

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

Is contractor accountants in Crooked Billet really the same price as elsewhere?

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

Ready to fix your fee in Crooked Billet?

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