Why a simple budget is worth an afternoon

Most small business owners can tell you their turnover to the nearest pound and their bank balance to the nearest penny, but ask what profit they expect to make over the next twelve months and the answer becomes noticeably vaguer. That is not a lack of ambition — it is simply that the day job keeps getting in the way. A budget is nothing more than a plan written in numbers, and it does not need to be complicated. One spreadsheet, a couple of hours of honest thinking and a realistic view of what is actually coming down the track will do more for your confidence than any glossy software package.

Two habits matter: setting sensible targets before the year begins, and checking yourself against them as the months roll by.

Set income targets you actually believe

The fastest way to build a budget that never gets used is to pluck an ambitious number from thin air. Instead, start with what you already know. Pull last year's sales figures, look at them month by month, and ask what has genuinely changed. A regular customer who has moved away matters. A new contract signed in March matters. A price rise you introduced in the autumn matters too.

• Build from the bottom up. Rather than aiming for "20 per cent growth", list the customers, jobs or contracts you expect and add them up. If the total looks thin, you have a sales problem to solve, not a spreadsheet problem.
• Respect your season. A wedding photographer, a heating engineer and an ice cream van all earn very differently across the year. Spread your target across the months in the shape your trade actually takes.
• Be honest about capacity. If you work alone, your income is capped by the hours you can sell and the rate you charge. Test whether the target fits inside those limits.

Split your costs into fixed and variable

Now the spending side. Everything you pay for falls into one of two buckets, and knowing which is which tells you how much risk you are carrying.

Fixed costs arrive whether you sell anything or not: rent or mortgage on your premises, business rates, insurance, accountancy fees, broadband and phone, software subscriptions, vehicle leasing, and any regular wages or director's salary. These are the costs that keep you awake in a quiet January.

Variable costs rise and fall with your sales: stock and materials, packaging, card processing fees, delivery charges, subcontractor payments, and any commission you pay to a sales channel. If you sell nothing, you pay nothing — which is why they are far friendlier to a small business than a large fixed commitment.

List both, add them up, and you have your annual cost base. Divide by twelve for a rough monthly figure, then adjust for anything that lands quarterly, such as VAT returns, or annually, such as insurance renewals.

Work out what each sale really leaves you

This is the number most owners skip, and it is the one that matters most. Take a typical sale, subtract the variable costs of delivering it, and you are left with the contribution — the money that goes towards your fixed costs and, eventually, your profit.

Sell a product for £100 and spend £40 on materials and fees, and your contribution is £60, or 60 per cent. Now divide your monthly fixed costs by that percentage. If fixed costs run at £4,000 a month, you need roughly £6,670 of sales just to break even. Every pound above that is profit; every pound below it is a loss. That single figure turns a vague target into something you can act on, and it also shows you why a discount can be far more expensive than it looks.

Compare actual against budget every month

A budget that lives in a drawer is a wasted afternoon. Set aside thirty minutes on the same day each month — the first Monday works well for many owners — and update three columns: what you planned, what actually happened, and the difference between them.

• Look at income and each cost category separately, so you can see whether a gap came from fewer sales or from higher spending.
• Do not panic over one unusual month. Look at the rolling three-month picture before you change anything.
• When something is consistently out, work out why. Rising courier costs and falling average order values are very different problems needing very different answers.
• Update your forecast for the remainder of the year as you go, so the plan stays useful rather than becoming a museum piece.

Keep it simple enough to keep going

The best budget is the one you will actually maintain. Keep it to a single page, use categories that match how you think about the business, and remember to set money aside for tax — VAT, PAYE and your own self-assessment bill all need to be budgeted for, not treated as a nasty surprise.

Review the whole thing once a year, ideally before your accounting year begins, and again after your accounts are prepared. If you work with an accountant, take your budget to that conversation; they will spot patterns and timing issues you might miss. Above all, treat it as a working tool rather than a test you can fail. Adjust it, learn from it, and let it give you the one thing every small business owner wants more of: a clear view of what is coming next.