Accounting

CIS Tax Returns · West London

CIS tax returns in Denham, West London

The Construction Industry Scheme takes 20% off a subcontractor's invoices before they are paid, and in Denham that money is often more than the tax actually owed. We prepare the return, reclaim the difference and chase HMRC for the refund. Contractors get the monthly CIS300 filed by the 19th with statements issued. Fixed fees, agreed in writing.

from £30/mo · fixed, per month

Next deadlines

  • VAT return and payment for the quarter that ended last month
  • CIS monthly return and deduction statements to subcontractors
  • PAYE and National Insurance for last month paid to HMRC (electronic)
  • VAT return and payment for the quarter that ended last month

Who this is for

CIS Tax Returns for Denham

Construction businesses in Denham, West London on either side of the scheme: sole trader and limited company subcontractors with 20% or 30% deductions to reclaim, contractors who pay subcontractors and must file monthly, businesses that do both, and established subcontractors with turnover high enough to apply for gross payment status and stop deductions altogether.

What is included

Everything inside the fixed fee

  • Subcontractor verification with HMRC and the correct deduction rate (20%, 30% or gross) applied each time
  • Monthly CIS300 return filed by the 19th with deduction statements issued to every subcontractor
  • Subcontractor annual Self Assessment with CIS deductions reclaimed and the refund chased with HMRC
  • Gross payment status application prepared with the turnover, compliance and business tests evidenced
  • Domestic reverse charge VAT checked on every CIS invoice in both directions
  • CIS deductions offset against PAYE for limited company subcontractors through the EPS each month

How it works

CIS Tax Returns from Denham, West London, step by step

  1. 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.

  2. Agree the price

    The fee is confirmed in writing. There is no hourly billing and nothing added for questions during the work.

  3. 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.

  4. 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

Why Denham businesses file with IGI

One fixed fee for cis tax returns in Denham, West London, agreed in writing before any work starts and never changed part-way through the job, however long it takes us.

We work to the HMRC and Companies House calendar, not an appointment diary. Clients in Denham, West London get reminders at 60, 30 and 7 days before each date that applies to cis tax returns.

We serve Denham, West London 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 cis tax returns.

Continuity matters in cis tax returns: the person who prepared last year's work for your Denham business prepares this year's, and remembers what was agreed.

We explain cis tax returns in the words Denham, West London business owners use, not in accountant's shorthand, and we show our working so you can check it.

You stay in control of cis tax returns: drafts go to Denham clients first, with the figures explained, and nothing leaves us until you say so.

Local facts

About Denham, West London

Denham, West London is in West London, within Buckinghamshire, in the UB9 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.

Nearby places we also serve for cis tax returns
PlaceDistanceDirection
Baker's Wood0.8 miNW
Rush Green, Buckinghamshire0.9 miSW
Denham, New1.0 miS
New Denham1.0 miSE
Denham, Higher1 miNW
Higher Denham1 miNW
Denham Green, South East1 miN
Tatling End1 miW

Worth knowing

Rules that come up in this work

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.

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.

Corporation Tax rates and marginal relief

Since April 2023 there have been two Corporation Tax rates, 19% small profits and 25% main, with marginal relief smoothing the transition between £50,000 and £250,000 of profit. The band is where planning matters: each pound of profit in it is taxed at an effective 26.5%, so pension contributions and capital expenditure timed to keep profit below £50,000 are worth more than they look.

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.

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

Directors of their own companies usually take a salary at or just above the National Insurance thresholds, which keeps the year qualifying for State Pension and is deductible for Corporation Tax, with further income as dividends. Dividends above the £500 allowance are taxed at 10.75%, 35.75% and 39.35% by band and can only be paid from distributable profits after tax, with a minute and voucher each time.

Payments on account

A common surprise in Self Assessment is the January payment that is far larger than expected. That is the balancing payment for the year just ended plus the first payment on account for the year ahead, which HMRC sets at half of the bill just calculated. We put the figure in your hands months ahead and tell you how to adjust it legitimately when circumstances change.

Questions

CIS Tax Returns questions from Denham

I have not filed for several years. Can you catch me up?

Yes. Late Self Assessment returns can be filed for the last four tax years to reclaim CIS deductions, and HMRC will offset refunds against any penalties. We quote a fixed fee for the set based on the number of years and reconcile each year's statements. The sooner this is done the more years remain claimable.

Can my CIS deductions be set against my VAT or other taxes?

For sole traders, no; CIS deductions are credited against your income tax and Class 4 National Insurance through Self Assessment, with the excess refunded. For companies, deductions are offset against PAYE and CIS owed, and the remaining balance is repaid by HMRC after the year end or, on request, set against Corporation Tax.

What rate do I deduct from a subcontractor?

You must verify each new subcontractor with HMRC before the first payment. HMRC tells you 20% if they are registered, 30% if not, or 0% if they hold gross payment status. Deductions apply to the labour element only, never to materials, VAT or plant hire. We verify every new subcontractor and record the result.

When are contractor returns due?

The CIS300 monthly return covers the tax month to the 5th and must reach HMRC by the 19th. Deduction statements must go to subcontractors by the same date. A nil return is still required if you paid no subcontractors. Late returns cost £100 immediately, rising to £200 after two months and then percentage-based penalties.

How much CIS refund can I expect?

It depends on your profit and expenses. Deductions are 20% of the labour element of your invoices; tax is only due on profit after expenses and the £12,570 personal allowance, with Class 4 National Insurance on top. Many subcontractors earning under £35,000 get back several thousand pounds. We give you the figure before filing.

What does the £149 subcontractor return include?

Your full Self Assessment with the self-employment pages, every CIS deduction statement reconciled to your income, allowable expenses claimed, the refund calculated and the return filed. We then track the repayment with HMRC, which usually arrives within two to six weeks of filing in the quieter months.

How do I get started from Denham, West London?

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 cis tax returns. Once you confirm, we tell you exactly which records to send and the work begins. Most Denham clients are set up within a day.

Which deadlines matter most for cis tax returns?

The next four dates that apply to cis tax returns are shown at the top of this page, calculated from today. For Denham 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.

Get a fixed quote for Denham today

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