Dictionary / Period Cost (or charge or expense)
What does Period Cost (or charge or expense) mean in accounting?
Quick definition
GeneralAny expenditure assigned to expense on a time basis. This term guides how bookkeepers record, classify, and explain related transactions in routine financial reporting.
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Examples
Office rent hits March, not the bars
You run a small-batch chocolate shop. On March 3, a landlord bills $2,260 for March rent on the front office and tasting room, not the tempering kitchen. That rent is a period cost: you assign it to March by time, not to bars you poured, so enter the bill dated March 3 in QuickBooks Online or Xero to Rent expense. March's P&L takes the full $2,260 even if most of the run is still in inventory. Attach that rent to unsold bars and you have parked a period cost on the balance sheet.
Shop leather is not a period cost
You run a leather goods shop. In November you cut 80 belts and ship 22. On November 8, a tannery bills $1,640 for sides of leather used on that run, and you code the whole bill to Supplies expense so November's P&L takes $1,640 as if it were a period cost. That leather is a product cost: it should sit in inventory with the unsold belts, then move to cost of sales as they ship. Recode the tannery to inventory (or raw materials) in QuickBooks Online so only the 22 shipped belts hit this month; leave it as a period cost and November looks worse while the 58 unsold belts sit too cheap.
Why it matters
A period cost is an expenditure you assign to expense by time: this month's rent, this month's insurance slice, this month's ads. You will code these every close if you pay office rent, run ads, or carry prepaid insurance; they hit the P&L in that period whether you shipped ten units or none. Product costs ride with the units and sit in inventory until they sell. Park office rent or ad spend in inventory and you hide selling and admin cost on the balance sheet; dump factory materials or shop labor onto the P&L in a heavy-build month and unsold goods sit too low while that month looks worse than it is.
Further reading
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What is Period Cost (or charge or expense) in bookkeeping?
Any expenditure assigned to expense on a time basis.
When should I use Period Cost (or charge or expense)?
Use Period Cost (or charge or expense) when the transaction facts match its definition and you need the ledger and financial statements to reflect the correct account and period.
What is a common mistake with Period Cost (or charge or expense)?
Period Cost (or charge or expense) is used for period cost (or charge or expense) entries, while Paid-In Surplus covers a related but distinct bookkeeping purpose. Review both terms before posting unusual transactions. A common mistake is applying it by label only instead of checking the underlying transaction details.