Bookkeeping that explains what the numbers mean
Updated 16 October 2026
Bookkeeping has long meant recording expenses, reconciling accounts and checking that the totals agree. Owners of small and mid-sized companies still need all of that. They also ask what the totals mean for the next quarter. This article shows four questions a bookkeeper can answer from the same books, each with a worked example. The worked examples use round figures, and the figures are an illustration.
From recording to explaining
A recording-only engagement delivers a profit and loss statement and a balance sheet each month. An engagement that adds explanation delivers the same reports with a short note on what changed and why. The note covers where cash went, which parts of the business earned the most, what the coming months look like and which decisions the figures support. The books are the same in both cases. The difference is the time spent reading them with the owner.
The figures are an illustration. The recording-only report shows that cash fell by $24,000 in May. The explained version adds three lines: $14,000 went to a new van deposit, $6,000 went to inventory bought ahead of June, and $4,000 reflects slower customer payments. The owner reads the three lines in a minute and knows which of the three to act on.
Where the cash goes
Cash leaves through regular bills, one-off purchases and costs that grow without notice. A monthly review of the larger expense lines, set against sales, shows which ones are rising faster than the business. The bookkeeper flags any line whose share of sales moved, and the owner decides whether the change was intended.
The figures are an illustration. An online retailer sells $400,000 in a year and pays $52,000 for shipping, which is 13.0% of sales. After the owner changes the shipping charge on orders and renegotiates carrier rates, shipping falls to $36,000, or 9.0% of sales. The change keeps $16,000 a year in the business on the same sales.
Which products or customers earn the most
A single profit figure for the whole company hides the parts that earn more and the parts that earn less. When the books record sales and direct costs by product, service or customer group, each one gets its own margin. A margin is the profit left from sales after the costs tied to those sales, shown as a share of sales.
The figures are an illustration. Line A sells $240,000 and keeps $72,000, a 30.0% margin. Line B sells $150,000 and keeps $68,000, a 45.3% margin. Line C sells $60,000 and keeps $9,000, a 15.0% margin. Together they sell $450,000 and keep $149,000, or 33.1%. Line B produces 45.6% of the profit from 33.3% of the sales.
Planning for a slow season
A cash flow forecast projects money coming in and going out over the coming months. It starts from the actual balance and the pattern of past sales. For a seasonal business, the forecast shows the month the balance reaches its low point, while there is still time to arrange credit or move a purchase.
The figures are an illustration. A company starts with $90,000 in the bank, pays $70,000 a month in fixed costs, and spends 25% of each month's sales on materials. Forecast sales are $110,000, $105,000, $62,000, $58,000, $64,000 and $108,000. The balance runs $102,500, $111,250, $87,750, $61,250, $39,250 and $50,250. The low point of $39,250 comes in month five, and the owner sees it five months ahead.
When to spend on growth and when to wait
A new hire, a second location or a large purchase changes the monthly cost base. The books show how much extra sales the business needs to cover the new cost. The owner compares that figure with recent sales growth and the forecast balance before committing.
The figures are an illustration. A new role costs $6,000 a month. The business keeps 45% of each sales dollar after direct costs. Covering the role takes $13,333 of extra monthly sales. If sales have grown by $8,000 a month over the past year, the owner waits for the forecast to show the other $5,333.
What software changed
Cloud accounting software and automation have made recording and reconciling faster and more accurate. Software sorts the transactions and produces the reports. Reading those reports against the owner's plans, and turning them into a decision, is the part that takes a person. That work is where a bookkeeper's hours now go.
The figures are an illustration. A bookkeeper spends 20 hours a month on one company's books. If recording and reconciling take 12 of those hours, the other 8 go to the monthly note, the margin review and the forecast. The owner gets the same reports plus a reading of them.
What this means for an owner
The same books answer four questions: where cash went, which lines earn the most, what the coming months look like and whether a new cost is covered. Each answer needs sales and costs recorded by product or customer group, a monthly close and a forecast that rolls forward. Three questions test a current engagement. Does anyone explain the reports each month? Does the bookkeeper help plan the coming months? Does the bookkeeper help with costs and growth decisions?
Books with a monthly reading
Averan Advisors closes the books each month and walks the owner through what changed. See bookkeeping and monthly close for the monthly work, and fractional CFO support for forecasts and growth decisions.
The monthly close page explains what closing the books on a set date each month involves.
If you want this done for you
What happens next
Reading about it and having it done are different things. Here is exactly what happens if you want the second one.
- The call takes thirty minutesYou describe the business and where the numbers are letting you down. We give you an expert view of your situation, and what we would start with. There is no pitch deck.
- We look at the fileYou give us read access to the books as they are. We come back with what is wrong, what it will take to fix, and whether the answer is bookkeeping, controller work, or something else.
- We send a written scope and a priceIt lists what we do each month, what you get, the date it lands and the fee. We agree it before anything starts, and it does not change unless you agree.
- We take over the books and close the first monthWe set up access and systems and enter the opening balances. The first close lands on the date in the scope, and every one after it does too.