Accounting

Contractor Accountants · South West London

Contractor accountants in Longthornton

IT, engineering, finance and healthcare contractors in Longthornton 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 Longthornton

Contractors and interim professionals in Longthornton 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 Longthornton, 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

The IGI way of working, in Longthornton

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

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

Online only, UK based. There is no office in Longthornton 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 contractor accountants: the person who prepared last year's work for your Longthornton business prepares this year's, and remembers what was agreed.

Plain English, with the numbers. Every draft for Longthornton 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 Longthornton clients first, with the figures explained, and nothing leaves us until you say so.

Local facts

About Longthornton

Longthornton is in South West London, within Merton, in the SW16 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
Mitcham Eastfields0.6 miW
Streatham Vale0.6 miN
Pollards Hill0.7 miSE
Figge's Marsh0.7 miW
Streatham South0.8 miNE
Norbury, Croydon0.9 miE
Mitcham1.0 miW
Tooting Graveney1 miNW

Worth knowing

Rules that come up in this work

Confirmation statements and identity verification

Every company must file a confirmation statement at least once a year, within fourteen days of its review date, with a £50 Companies House fee. Since November 2025 directors and people with significant control must also verify their identity with Companies House, and the confirmation statement is where existing officers confirm they have done so during the transition year.

CIS deductions

Under the Construction Industry Scheme, contractors deduct 20% from a registered subcontractor's labour invoices, or 30% if unregistered, and pay it to HMRC. The subcontractor reclaims the deductions against their actual tax through Self Assessment, usually producing a refund because deductions are on turnover while tax is on profit. Contractors file a monthly return by the 19th.

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.

Director's loan accounts

Money taken from a company has to be something: salary, dividend, expense reimbursement or loan. If it is a loan and remains outstanding nine months after the year end, the company pays tax at the dividend higher rate on it until it is repaid. Clearing the balance with a properly declared dividend before the deadline, where reserves allow, is routine year-end work.

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.

Questions

Contractor Accountants questions from Longthornton

Can the company pay into my pension?

Yes, and it is one of the most efficient ways to extract value. Employer pension contributions are deductible for Corporation Tax, free of National Insurance and not taxed on you, up to the £60,000 annual allowance (tapered for very high earners). We include pension planning in the Complete package's annual call.

What happens between contracts?

The company continues and so do the filings, but we can reduce the salary and pause dividends. If you expect a long gap we discuss whether to keep the company trading, make it dormant or close it. The monthly fee continues while the company is active because the compliance does, but we review it with you if circumstances change.

How should I pay myself from the company?

The usual approach is a salary around the National Insurance thresholds, which keeps your State Pension record intact and is deductible for Corporation Tax, with the rest as dividends taxed at the dividend rates after the £500 allowance. The exact split depends on your other income and the company's profit, and we set it at the start of each tax year.

What is IR35 and does it affect me?

IR35 asks whether, but for the company, you would be an employee of your client. If a contract is inside IR35 the income is taxed like employment. Since 2021 medium and large private-sector clients make the determination and deduct tax at source; for small clients the contractor decides. We review contracts and working practices and give a written opinion for £99.

What is in the £75 Essential package?

Annual statutory accounts and CT600 filed with Companies House and HMRC, monthly director payroll with RTI submissions, dividend vouchers and minutes, the confirmation statement filed (Companies House £50 fee separate), and deadline tracking. It suits contractors outside VAT or who prefer to do their own VAT and bookkeeping.

What do Plus and Complete add?

Plus at £105 adds quarterly VAT returns and monthly bookkeeping from your bank feed, so the records are kept for you. Complete at £125 adds the director's Self Assessment return and an annual tax planning call covering salary, dividends, pension and the year ahead. Most contractors inside VAT choose Plus or Complete.

Do you have an office in Longthornton?

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

Is contractor accountants in Longthornton really the same price as elsewhere?

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

One message from Longthornton, one fixed price

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