Cash-Flow Forecasting · South West London
Cash-flow forecasting in South Wimbledon
Cash-flow forecasting for businesses in South Wimbledon: a 13-week rolling forecast is £199, a 12-month forecast with scenarios is £349, a monthly refresh retainer is £99 a month, and a funding-application forecast pack is £299. Fixed fees, published, and the same in South Wimbledon as in every part of England.
from £199 · fixed, per forecast
Next deadlines
- VAT return and payment for the quarter that ended last month
- PAYE and National Insurance for last month paid to HMRC (electronic)
- VAT return and payment for the quarter that ended last month
- PAYE and National Insurance for last month paid to HMRC (electronic)
Who this is for
Cash-Flow Forecasting for South Wimbledon
Businesses in South Wimbledon where cash timing matters: companies growing faster than their working capital, seasonal businesses, those holding stock or work in progress, businesses with loans or finance to service, companies applying for lending or grants, start-ups measuring runway, and any owner who has had an unexpected conversation with the bank and does not want another.
What is included
Everything inside the fixed fee
- A 13-week rolling forecast built week by week from your receipts, payments, payroll, VAT and tax dates
- A 12-month forecast with best, base and worst case scenarios and the assumptions documented
- Debtor and creditor timing modelled from your actual payment patterns rather than invoice dates
- Tax, VAT, PAYE and loan repayments placed on their real dates so nothing is a surprise
- Monthly refresh retainer: actuals replace forecast each month and the horizon rolls forward
- Funding-application pack: forecast, assumptions, sensitivities and the narrative lenders and grant bodies expect
How it works
Cash-Flow Forecasting from South Wimbledon, 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
What you get in South Wimbledon
No hourly rate and no surprise invoice. South Wimbledon clients know the fee for cash-flow forecasting 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 South Wimbledon get reminders at 60, 30 and 7 days before each date that applies to cash-flow forecasting.
Online only, UK based. There is no office in South Wimbledon 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 cash-flow forecasting: the person who prepared last year's work for your South Wimbledon business prepares this year's, and remembers what was agreed.
We explain cash-flow forecasting in the words South Wimbledon business owners use, not in accountant's shorthand, and we show our working so you can check it.
Nothing is filed for South Wimbledon 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 South Wimbledon
South Wimbledon is in South West London, within Merton, in the SW19 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 |
|---|---|---|
| Abbey, Merton | 0.1 mi | SE |
| Merton | 0.4 mi | SE |
| Trinity, Merton | 0.5 mi | N |
| Merton Park | 0.6 mi | SW |
| Colliers Wood | 0.7 mi | E |
| Wimbledon | 0.7 mi | NW |
| Morden | 0.9 mi | S |
| Lavender Fields | 1.0 mi | E |
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.
The Self Assessment calendar
Self Assessment runs on a fixed annual cycle. Registration by 5 October following the tax year, online filing and payment by 31 January, and a second instalment on 31 July for those making payments on account. The penalties for lateness are automatic and escalate monthly, which is why we file early and chase approvals well before the window closes.
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
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.
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
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.
Questions
Cash-Flow Forecasting questions from South Wimbledon
What happens after the forecast is delivered?
You receive the model, a briefing call to walk through it, and a written note of the assumptions and the pinch points we see. You can run it yourself from there, or take the £99 monthly refresh so we keep it live. Many clients start with a one-off forecast and move to the retainer once they see its value.
How quickly can you produce a forecast?
A 13-week forecast within five working days of receiving your data; a 12-month forecast with scenarios within ten. Funding packs depend on the lender's format but typically two weeks. If you have a deadline for an application, tell us when you book and we plan backwards from it.
Can a forecast show me whether I can afford a hire or a purchase?
Yes, that is one of its main uses. We add the hire or purchase as a scenario and show the cash effect month by month, including the point at which it pays for itself if it does. Decisions that look fine on a profit basis often fail on cash timing, and the forecast shows where.
How do seasonal businesses use forecasting?
To see the trough. Seasonal businesses typically make their profit in a few months and spend the rest of the year surviving on it, with VAT and tax payments falling in the quiet period. The 12-month forecast shows how deep the trough goes and whether a facility is needed to bridge it, well before the bank does.
What is a 13-week rolling forecast?
A week-by-week projection of cash in and cash out for the next quarter, built from your debtor book and payment patterns, your creditors and their terms, payroll, rent, loan repayments and every tax date, giving the forecast bank balance at the end of each week. It is the standard tool for managing short-term cash and is refreshed as actuals arrive.
How is the £199 forecast built?
From your bookkeeping and bank data, your aged debtors and creditors, your payroll, your known commitments and the tax calendar. We analyse how quickly your customers actually pay rather than when they are due, which is where most forecasts go wrong, and we document every assumption so you can change it. You receive the model and a short briefing.
Which deadlines matter most for cash-flow forecasting?
The next four dates that apply to cash-flow forecasting are shown at the top of this page, calculated from today. For South Wimbledon 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 South Wimbledon?
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 cash-flow forecasting. Once you confirm, we tell you exactly which records to send and the work begins. Most South Wimbledon clients are set up within a day.
Ready to fix your fee in South Wimbledon?
Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.