Accounting

HMRC Investigation Support · South East

HMRC investigation support in Slough

If HMRC has opened a compliance check, an enquiry or a Code of Practice 9 investigation into your affairs in Slough, you need someone who has handled them before and will tell you the truth about your position. We do both for clients across South East, from first response to closure, at fixed fees per stage.

from £299 · fixed, per stage

Next deadlines

  • VAT return and payment for the quarter that ended last month
  • VAT return and payment for the quarter that ended last month
  • Company tax return (CT600) due 12 months after your year end (a 31 December year end files by 31 December)
  • VAT return and payment for the quarter that ended last month

Who this is for

HMRC Investigation Support for Slough

Anyone in Slough who has received an HMRC letter: sole traders and landlords with a Self Assessment compliance check, companies with a Corporation Tax or VAT enquiry, employers facing a PAYE review, people who have received a nudge letter about offshore income, crypto or property, and those who know their past returns were wrong and want to disclose before HMRC finds out.

What is included

Everything inside the fixed fee

  • Review of HMRC's letter and the return or period under check, with a frank assessment of exposure before you commit
  • Agent authorisation so that HMRC deals with us directly and deadlines are managed on your behalf
  • A controlled first response: what HMRC is entitled to, what it is not, and the information actually required
  • Meetings and correspondence handled, with you briefed before and after every exchange
  • Voluntary disclosures prepared and negotiated where tax has been underpaid, minimising penalties
  • Penalty mitigation, suspension requests, statutory reviews and tribunal appeals where the facts support them

How it works

HMRC Investigation Support from Slough, 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 Slough

The price for hmrc investigation support is published on this page and is what a client in Slough pays. We confirm it in writing first, and the invoice matches the quote.

Deadline-first: the dates that matter for hmrc investigation support are shown at the top of this page, diarised for every Slough client and chased before they arrive.

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

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

You stay in control of hmrc investigation support: drafts go to Slough clients first, with the figures explained, and nothing leaves us until you say so.

Local facts

About Slough

Slough is in South East, in the SL1 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 hmrc investigation support
PlaceDistanceDirection
Salt Hill0.6 miW
Upton, Slough0.7 miSE
Myrke0.8 miS
Upton Lea0.9 miNE
Chalvey1.0 miSW
Wexham Court1 miNE
Cippenham Lane Camp1 miW
Stoke Green, M25 Fringe1 miNE

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

CIS turns construction subcontractors into advance taxpayers: a fifth of every labour payment goes to HMRC before they see it. Registering keeps the rate at 20% rather than 30%; gross payment status, for established businesses with a clean record, removes deductions altogether. The annual return is where the overpayment comes back, and filing it early brings the refund sooner.

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

The £90,000 VAT threshold is measured over any twelve consecutive months, which is why a strong quarter can tip a business over unexpectedly. Registration must follow within thirty days of the end of the month the threshold was crossed. Below the threshold, voluntary registration is worth considering when customers are VAT-registered businesses and costs carry VAT.

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.

Late filing penalties

Lateness is expensive in a way that compounds. For individuals, £100 immediately, then daily penalties, then percentage-based ones at six and twelve months, with interest running on unpaid tax throughout. For companies, Companies House penalties scale with delay and double on repeat, and HMRC adds its own for a late CT600. Filing on time is the cheapest tax planning there is.

Questions

HMRC Investigation Support questions from Slough

Can HMRC go back more than one year?

The normal time limit is four years from the end of the tax year, extended to six for careless behaviour and twenty for deliberate behaviour or failure to notify. If HMRC finds an error in one year it will usually ask about others. Part of our job is holding HMRC to the correct time limit for the behaviour actually shown.

Do I have to attend a meeting with HMRC?

No. You are not obliged to attend a meeting and we often recommend written correspondence instead, which gives considered answers rather than off-the-cuff ones. Where a meeting is useful we attend with you or on your behalf, agree the agenda in advance and take our own notes of what was said.

What penalties can HMRC charge?

For an inaccurate return, 0% to 30% of the extra tax for careless errors, 20% to 70% for deliberate ones and 30% to 100% for deliberate and concealed, with higher ranges for offshore matters. Within each range the penalty depends on whether the disclosure was prompted and how much you help. We work to secure the lowest point in the applicable range and suspension where available.

What is a voluntary disclosure and should I make one?

Telling HMRC about an error before it asks. Unprompted disclosures attract much lower penalties, often nil for careless errors, and are the right course when you know a return was wrong. The Digital Disclosure Service, Let Property Campaign and Worldwide Disclosure Facility are the main routes. Our fee from £599 covers preparing and negotiating the disclosure.

Can I pay what I owe in instalments?

Usually. HMRC's Time to Pay arrangements spread settlements over months, sometimes years, depending on the amount and your means. Interest runs but further penalties do not if you keep to the agreement. We negotiate the arrangement as part of closing the enquiry, with realistic figures based on your income and assets.

I received a nudge letter but I think my return is right. What should I do?

Nudge letters ask you to check and either amend or confirm. Do not sign HMRC's certificate without checking thoroughly, because signing a false one is serious. We review the area HMRC has raised, confirm the position and respond. If the return is right we say so to HMRC clearly; if not, we amend before any enquiry is opened.

Do you have an office in Slough?

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

Is hmrc investigation support in Slough really the same price as elsewhere?

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

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