HMRC Investigation Support · South East London
HMRC investigation support in Single Street
HMRC investigation support for individuals and businesses in Single Street: we review the letter, assess your position honestly, and handle each stage for a fixed fee you know in advance. A compliance-check letter reviewed and answered is £299. The fee is the same in Single Street as anywhere in England, and we never bill investigations by the hour.
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 Single Street
Anyone in Single Street 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 Single Street, step by step
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.
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.
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.
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 Single Street businesses file with IGI
No hourly rate and no surprise invoice. Single Street clients know the fee for hmrc investigation support 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 Single Street get reminders at 60, 30 and 7 days before each date that applies to hmrc investigation support.
Online only, UK based. There is no office in Single Street 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 Single Street business prepares this year's, and remembers what was agreed.
We explain hmrc investigation support in the words Single Street business owners use, not in accountant's shorthand, and we show our working so you can check it.
Nothing is filed for Single Street until you have reviewed and approved it. You see the draft, you ask questions, you sign off, then we submit and send you the receipt.
Local facts
About Single Street
Single Street is in South East London, within Bromley, in the TN16 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.
| Place | Distance | Direction |
|---|---|---|
| Luxted | 0.2 mi | NW |
| Darwin | 0.4 mi | N |
| Berry's Green | 0.5 mi | SE |
| Cudham | 0.8 mi | E |
| Aperfield | 1 mi | W |
| Downe | 1 mi | N |
| Horns Green | 1 mi | SE |
| Hazelwood, Bromley | 1 mi | NE |
Worth knowing
Rules that come up in this work
Switching accountants
Changing accountant is simpler than most people fear. You authorise the new firm, which writes to the old one for professional clearance and your records; the outgoing accountant must hand over your own documents and usually does within two weeks. The new firm registers as your agent with HMRC and picks up the next filing. There is no need to wait for a year end.
Closing a company
Voluntary strike-off is available only to solvent companies. One that owes money it cannot pay needs a creditors' voluntary liquidation through a licensed insolvency practitioner, and directors who dissolve an insolvent company face personal consequences. For a solvent company the process takes three to four months from filing the DS01, with notice to creditors and shareholders within seven days.
Record keeping
Good records are the difference between a quick enquiry and a long one. For the self-employed, five years after the filing deadline; for companies, six years from the year end; for VAT, six years. Photographs of receipts, PDF statements and software exports all count. The requirement is to keep records, not paper, and a well-organised cloud folder satisfies it.
Allowable expenses
The expenses sole traders most often miss are home working costs, claimed by actual proportion or HMRC's flat rate, the business share of phone and internet, mileage at 45p for the first 10,000 business miles, and training that maintains existing skills. The ones most often claimed wrongly are commuting, entertaining customers and clothes that could be worn outside work.
Crypto records and reporting
HMRC treats cryptoassets as property. Swapping one token for another, spending crypto or gifting it are all disposals for Capital Gains Tax, and staking and lending rewards are income. Gains are computed under pooling rules with same-day and 30-day matching. From 2026 HMRC receives data from exchanges worldwide under the Cryptoasset Reporting Framework, so unreported activity is increasingly visible.
The 60-day property CGT return
Since April 2020 a gain on UK residential property must be reported and the tax paid within 60 days of completion through HMRC's dedicated service, separately from the annual return. Non-residents must report all UK land disposals in the same window whether or not tax is due. Getting the computation right first time matters because the figure is then carried into the Self Assessment.
Dormant companies
Companies formed to protect a name or hold a future business are dormant but not exempt: Companies House still expects dormant accounts within nine months of the year end and a confirmation statement annually with its £50 fee, and HMRC must be told the company is dormant or it will demand Corporation Tax returns. The filings are short, but the penalties for missing them are the same as for a trading company.
Questions
HMRC Investigation Support questions from Single Street
What if I disagree with HMRC's conclusion?
You can request a statutory review by an officer not involved in the case, which overturns or varies around a third of decisions, and you can appeal to the First-tier Tribunal within 30 days. We advise on the merits honestly and handle both routes; the £249 penalty appeal fee covers a review request or appeal against a penalty decision.
Will my previous accountant's errors be held against me?
The law holds you responsible for your return, but relying on a competent adviser and giving them full information is a reasonable excuse for many penalties. We establish what happened and present it to HMRC. If the adviser was negligent you may have a claim against them, which we help you document.
What is the difference between a compliance check and an investigation?
A compliance check is HMRC's standard term for any review of a return, from a single question to a full examination of a year's records. Most are routine. A Code of Practice 9 investigation is reserved for suspected serious fraud and works very differently, offering immunity from prosecution in return for full disclosure. We tell you which you are facing from the letter.
What does the £299 first stage cover?
Reviewing HMRC's letter and the return or period concerned, assessing what HMRC is likely to be looking at and your exposure, arranging agent authorisation, and preparing and sending the first response within HMRC's deadline. At the end you know where you stand and what the next stage would cost, and you decide whether to proceed.
Should I just send HMRC everything they ask for?
No. HMRC is entitled to information reasonably required to check the return, and no more. Requests for private bank statements, several years of records or information about other people are often wider than the law allows. Giving too much lengthens the enquiry and can open new lines. We give HMRC what it is entitled to, promptly and completely.
How long does an enquiry take?
A straightforward aspect enquiry into one item can close in two to three months. A full enquiry into a year's records typically takes six to twelve months, longer if HMRC extends to other years. We keep the process moving by responding within deadlines and pressing HMRC to do the same, and we apply for a closure notice if HMRC stalls.
Which deadlines matter most for hmrc investigation support?
The next four dates that apply to hmrc investigation support are shown at the top of this page, calculated from today. For Single Street 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.
How do I get started from Single Street?
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 hmrc investigation support. Once you confirm, we tell you exactly which records to send and the work begins. Most Single Street clients are set up within a day.
Ready to fix your fee in Single Street?
Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.