Dictionary / Fixed Cost (or expense)
What does Fixed Cost (or expense) mean in accounting?
Quick definition
GeneralAn operating expense, or operating expense as a class, that does not vary with business volume. This term guides how bookkeepers record, classify, and explain related transactions in routine financial reporting.
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Examples
August sales drop, the shop bills do not
You run a neighborhood bike shop. On August 1, the landlord bills $2,850 for the storefront, you post $3,400 of salaried office-manager wages, and an insurer drafts $195 for the shop policy. July was busy, then August walk-in traffic falls after school starts, but those three operating expenses stay at the same amounts on the P&L. Leave rent, wages, and insurance whole; the rent also counts as a fixed charge, but the salary and the policy do not, and all three are still fixed costs. Tubes and cables from a parts distributor will fall with volume, so that spend is not a fixed cost.
The warehouse fee moves with boxes
You run a candle studio and treat a fulfillment warehouse as a flat $1,200 warehouse fee. Their November invoice is $2,340: $900 for the bay and $8 each for 180 holiday boxes shipped ($1,440). Only the bay is a candidate for a fixed cost; the per-order charge moves with volume. Split the bill in QuickBooks Online, $900 to warehouse rent or fulfillment overhead and $1,440 to shipping or variable fulfillment, and do not treat the whole warehouse line as locked when you forecast a quiet January.
Why it matters
A fixed cost is an operating expense that stays the same when sales rise or fall. A storefront lease, salaried admin pay, and a flat insurance premium all sit in that class; they do not shrink because a month is quiet. You will see those bills every month if you have a lease, a policy, or salaried staff, and you will use the idea whenever you read a slow period, price work, or forecast cash. Treat them as if they move with volume and a quiet month looks cheaper than it is, then cash still leaves for the same occupancy and payroll. Do not mix this with fixed charges: that neighbor is the narrower unavoidable-overhead bundle of interest, depreciation, amortization, and leased-property rent. Fixed cost is the wider class: any operating expense that does not vary with business volume, including salaries and insurance that never appear in that bundle.
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What is Fixed Cost (or expense) in bookkeeping?
An operating expense, or operating expense as a class, that does not vary with business volume.
When should I use Fixed Cost (or expense)?
Use Fixed Cost (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 Fixed Cost (or expense)?
Fixed Cost (or expense) is used for fixed cost (or expense) entries, while F.O.B 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.