Why holding costs matter to a first-time founder
Unsold stock consumes cash even when warehouse rent looks cheap. Insurance, shrinkage, spoilage, financing and obsolescence can turn a bulk discount into an expensive mistake. Measuring the full carrying cost helps founders choose order quantities and identify products that tie up working capital without earning enough margin.
Examples of holding costs
A retailer holds £50,000 of seasonal stock for six months. Storage and insurance cost £2,500, financing costs £1,500 and obsolete items lose £4,000 of value. The £8,000 holding cost outweighs the supplier’s £5,000 bulk discount, so smaller orders would have been cheaper overall.
Common misunderstanding
Holding cost is not just the warehouse invoice. It includes relevant capital and risk costs, although the precise components depend on the decision and accounting purpose. A percentage estimate can support planning, but it should not be presented as a precise statutory expense without reconciling the underlying records.
When to use it
Calculate it when setting reorder quantities, comparing fulfilment models or deciding whether to clear slow stock. Use a consistent period and separate cash costs from estimates such as opportunity cost. Start with material components rather than false precision, then improve the model as inventory data becomes reliable.