Business Advisory · South London
Business advisory in The Wrythe
Business advisory for owners in The Wrythe: a single 90-minute session with written summary is £149, a pricing and margin review is £299, a growth readiness review is £399, and a quarterly retainer is £129 a quarter. Fixed fees, published, the same in The Wrythe as in every part of England, delivered by video call.
from £149 · fixed, per session
Next deadlines
- VAT return and payment for the quarter that ended last month
- VAT return and payment for the quarter that ended last month
- VAT return and payment for the quarter that ended last month
- Tax year ends: last day for pension, ISA and dividend timing decisions
Who this is for
Business Advisory for The Wrythe
Owner-managers in The Wrythe facing a decision or a recurring problem: businesses that are busy but not profitable, owners considering a first or next hire, companies choosing between loan, invoice finance and investment, founders preparing to scale or to sell, franchisees and partnerships needing an independent view, and anyone who wants a quarterly conversation about the numbers with someone who has read them.
What is included
Everything inside the fixed fee
- A structured 90-minute session on the question you bring, with preparation from your numbers beforehand
- A written summary within three working days: what we discussed, what we recommend, what to do next
- Pricing and margin review: unit economics, price points, discounting and the gross margin you actually make
- Growth readiness review: hiring plans, funding options, systems, controls and what breaks at the next size
- Quarterly advisory retainer: a session each quarter with your management figures and a standing agenda
- Introductions to lenders, grant bodies and specialists where the question needs them
How it works
Business Advisory from The Wrythe, 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
The IGI way of working, in The Wrythe
No hourly rate and no surprise invoice. The Wrythe clients know the fee for business advisory 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 The Wrythe get reminders at 60, 30 and 7 days before each date that applies to business advisory.
Online only, UK based. There is no office in The Wrythe 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 business advisory: the person who prepared last year's work for your The Wrythe business prepares this year's, and remembers what was agreed.
We explain business advisory in the words The Wrythe business owners use, not in accountant's shorthand, and we show our working so you can check it.
Nothing is filed for The Wrythe 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 The Wrythe
The Wrythe is in South London, within Sutton, in the SM5 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 |
|---|---|---|
| Hackbridge | 0.6 mi | NE |
| Carshalton Village | 0.7 mi | S |
| Carshalton | 0.7 mi | SE |
| Carshalton Central | 0.7 mi | S |
| Wandle Valley | 0.7 mi | N |
| Wallington Green | 0.8 mi | SE |
| Beddington Corner | 0.8 mi | NE |
| Wallington North | 0.9 mi | SE |
Worth knowing
Rules that come up in this work
The Self Assessment calendar
The tax year runs from 6 April to 5 April. Anyone new to Self Assessment must register by 5 October after the end of the tax year in which their untaxed income began. The online return and the balancing payment are due by 31 January, with a second payment on account on 31 July where they apply. Paper returns have an earlier deadline of 31 October and are rarely sensible.
Payments on account
If your Self Assessment bill exceeds £1,000 and less than 80% of your tax was collected at source, HMRC asks for two advance payments towards the following year, each half of the current bill, due 31 January and 31 July. The first year this happens the January payment is effectively one and a half times the bill. We model it in advance and show you how to reduce the payments if income is falling.
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.
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 VAT registration threshold
Watching the rolling twelve-month turnover figure is one of the quiet jobs of monthly bookkeeping, because the £90,000 VAT threshold arrives silently. Crossing it brings quarterly returns, Making Tax Digital software and a decision about schemes. Crossing it late brings a bill for VAT you could not recover from customers and a penalty for failing to notify.
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.
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.
Questions
Business Advisory questions from The Wrythe
Do you need to be my accountant for compliance?
No. Advisory is available on its own, and we work from management figures or accounts prepared by another firm. Where the session reveals a compliance issue we tell you, and where implementing the advice needs ongoing accounting we quote it separately as a fixed fee.
How do I get the most from a session?
Bring one clear question and send your figures beforehand. The best sessions are specific: should I take on this contract at this price, can I afford this hire by March, which of my three services should I stop. Broad questions get broad answers; specific ones get decisions.
What happens in the £149 session?
You tell us the question when you book and send your recent figures. We prepare, then spend 90 minutes by video working through it: the numbers, the options, the trade-offs. Within three working days you receive a written summary of the discussion, our recommendation and the next steps. One session often resolves the question; some lead to a review product.
What is the pricing and margin review?
For £299 we analyse your sales by product, service or customer against the true cost of delivering each, including the overheads that are usually ignored, to show where the margin is actually made and lost. The report recommends price changes, discount policy and which lines to grow or drop, with the profit effect of each quantified.
What is the growth readiness review?
For £399 we look at what the business would need to operate at the next level: people and roles, funding and cash, systems and controls, pricing capacity and the owner's own role. The report identifies what will break first at the larger size and sets out the fixes in order, with costs. It is often used before a fundraise or a major hire.
How does the quarterly retainer work?
For £129 a quarter you get a session each quarter with your management figures, a standing agenda of the things you are tracking, and a written note afterwards. It is for owners who want a regular, structured conversation about the business rather than one-off help, and it works best alongside our management accounts.
Which deadlines matter most for business advisory?
The next four dates that apply to business advisory are shown at the top of this page, calculated from today. For The Wrythe 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 The Wrythe?
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 business advisory. Once you confirm, we tell you exactly which records to send and the work begins. Most The Wrythe clients are set up within a day.
Ready to fix your fee in The Wrythe?
Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.