This is not a forecast or growth model. It isolates the incremental risk of adding a fixed cost.
Click “View the tool (Read Only)” above to download a read-only example and open it in Excel.

Example output showing cash runway if additional work only partly materialises.
Hiring feels like the obvious next step.What’s less obvious is how much cash risk you’re taking on if the work doesn’t land as expected.This tool answers one question, clearly:
If I hire someone and the extra work doesn’t fully materialise, how long can my business survive?
This is not:
a profit forecast
a growth model
a P&L
a “what if everything goes right” calculator
It is a risk filter.It isolates the incremental impact of adding one fixed monthly cost — a new hire — and shows what that does to your cash runway.
This tool is designed for:
UK trades and small service businesses
Owners thinking about their first or next hire
Anyone asking: “Am I being sensible — or am I betting the business?”
You don’t need accounting knowledge.You just need to know roughly what comes in, what goes out, and what a new hire really costs.
You enter:
your current cash balance
your average monthly income and overheads
what a new hire would actually cost per month
The tool then shows:
what changes because of the hire
how quickly cash would fall if extra work doesn’t show up
how long you can carry that risk without hurting the business
Nothing more. Nothing hidden.
Hiring doesn’t fail because the numbers were wrong.
It fails because owners quietly assume:
This tool doesn’t assume success.It asks:
You can see:
worst-case (no extra work)
partial coverage
full cost coverage
All through a cash-only lens.
Incremental, not theoretical
It looks only at what changes when you add the hire — not the whole business.
Conservative by design
Upside is deliberately ignored.
If it does better than break-even, that’s a bonus — not something you rely on.
Cash-focused
Monthly cash survivability matters more than annual profit.
Accountant-safe
Assumptions are stated.
No clever tax tricks.
No hidden optimism.
You can see:
Clear inputs (no clutter)
Month-by-month cash runway
A single decision summary that tells you:
how much work needs to materialise
how long you can afford to wait if it doesn’t
No charts to impress.
No scenarios to game.
Just the answer you need.
It will not tell you:
whether to hire
how to grow faster
how much profit you’ll make
how to optimise tax
It shows the conditions under which hiring is financially safe — and lets you decide.
£149 — one-off.
No subscription.
No upsell.
No bundled tools.
You’re paying for clarity, not software.
Most hiring mistakes aren’t reckless — they’re optimistic.This tool is for owners who want to grow without gambling the business.
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