Some of my costs are annual, like a licence renewal and a yearly website plan: should I calculate break-even monthly or yearly?
Either is fine, and both give the right answer on one condition: the fixed costs and the sales you compare them with must cover the same period. For a monthly target, divide annual costs by 12 and add them to the monthly ones; for a yearly target, use the full year's total.
The calculator does not know your period
The fixed costs box in the Break-even calculator takes a single figure and never asks whether it is for a month or a year. The result is in units for whatever period your costs cover. The tool's own limitations say so: costs and sales must refer to the same period, and it cannot check that for you.
The monthly method, step by step
- Add up what you pay every month, say 3,000 for a small storage unit and monthly subscriptions.
- Add up the annual costs, such as a trade licence renewal, a yearly website plan and insurance, say 12,000, and divide by 12 to get 1,000 a month.
- Enter 4,000 as fixed costs, with a price of 60 and a variable cost of 35.
- Result: a contribution of 25, a break-even of 160 units a month, and revenue of 9,600.
The yearly method gives the same answer
Enter 48,000, the whole year's monthly and annual costs together, with the same price and cost. The calculator shows 1,920 units a year and revenue of 115,200. Divide 1,920 by 12 and you get 160 units, the same monthly figure. The two methods agree as long as you are consistent.
The difference is practical. A monthly target is easier to track, since you know at the end of each month whether you made it. A yearly target suits seasonal sales better, such as a shop that sells most of its stock around Ramadan and Eid.
The mistake that inflates the result
A common slip is adding the full annual amount to the month it was paid. Enter 3,000 + 12,000 = 15,000 as monthly fixed costs and the calculator shows 600 units instead of 160. It looks as if the business can never make money, when really it is a whole year of renewals loaded onto a single month.
- An annual cost serves you all year, so give each month its share.
- If you want to know how much cash you need in the renewal month, that is a cash-flow question, which the calculator does not cover.
- Sort your spending by month and category first with the Expense summary generator so monthly and annual items are easy to tell apart.
Common questions
I have a cost every three months. How do I handle it?
Divide it by 3 for its monthly share, or multiply by 4 if you are working on a yearly basis.
Can I calculate for a quarter?
Yes, any period works, as long as the fixed costs cover that period and you compare the result with that period's sales.
How do I check the margin per unit afterwards?
Use the Profit margin calculator with the selling price and the unit cost.