How much does it actually cost to run a gas station per month?

What we mean by “operating costs”

When people say "how much does it cost to run a gas station," they usually mean operating expenses, the costs of staying open every month. They don't mean the cost of buying fuel and inventory to sell (that's cost of goods sold, or COGS), and they don't mean what you paid to buy the business itself.

Operating costs are everything between revenue and net profit that isn't COGS. Payroll. Rent. Utilities. Credit-card fees. Insurance. Repairs. Supplies. License renewals. Vendor service contracts. Bookkeeper or CPA fees. The list is long, and it adds up.

The major operating cost lines

1. Payroll

The biggest line for most owners. A single-station independent typically employs 4–8 people: 1–2 managers, 2–4 full-time clerks, 2–3 part-time. Total payroll usually $15,000–$30,000/month including taxes, workers' comp, and any benefits. Higher in California, Washington, and northeast states; lower in the south.

Payroll-adjacent costs include scheduling software, time-clock subscriptions, and payroll-processor fees ($50–$200/month at Gusto, ADP, or Paychex).

2. Credit-card processing fees

The most-underestimated cost. Card fees run 2–3% of every credit-card sale and 0.5–1% on debit. At a station doing $200,000/month in sales with 70% on cards, fees run $3,000–$4,500/month. Most independents have never renegotiated their processor rates and are paying high.

Fleet and fuel cards (WEX, FleetCor, Voyager) carry even higher fees on fuel: 2.5–3.5% blended. Per-tender-type cost matters for true margin calculation.

3. Rent or mortgage

Highly variable. Owners with paid-off real estate run materially leaner. Tenants typically pay $4,000–$15,000 in monthly rent depending on location and lot size. Some leases include triple-net (NNN) charges, property tax, insurance, and maintenance, that add 25–40% on top of base rent.

4. Utilities

Electricity is the biggest utility cost, refrigeration, fuel-pump motors, lighting, HVAC. Typical $1,500–$4,000/ month depending on store size and climate. Water, sewer, garbage, internet, phone add another $500–$1,500 combined.

5. Insurance

Property, general liability, workers' comp, fuel-pump and UST coverage, business interruption. Usually $1,500–$3,500/month for an independent. Some states require environmental impairment liability separately: $200–$800/month extra.

6. Repairs and maintenance

Looks small until something breaks. Plan $1,500–$3,000/ month on average across a year, but actual months can vary widely. A walk-in cooler compressor failure is $4,000–$8,000. HVAC replacement $6,000–$12,000. Dispenser repairs $500–$3,000.

7. Vendor service contracts

Pest control ($75–$200/month), pump calibration (annual $500–$1,500), refrigeration service (quarterly $300– $800 per visit), POS support contract ($100–$400/month), ATG monitoring service ($150–$400/month). Together $400–$1,200/month.

8. Professional services

Bookkeeper ($500–$2,000/month or part-time staff), CPA ($150–$400/month average plus year-end). Payroll service ($50–$200/month, listed under payroll above too). Legal only when needed.

9. Supplies and consumables

Cleaning, restroom, register supplies, receipt paper, printer ink, bags, cups. $200–$800/month at a typical independent.

10. Licenses, permits, fees

Annual licenses (tobacco, lottery, ABC, business operating) amortize to $200–$800/month. State and local regulatory fees add another $100–$300.

Example: a typical $50,000/month operating cost breakdown

Single-station independent gas station, ~$200k/month in revenue:

Payroll (4 FT, 3 PT + manager):         $24,000
Credit-card processing fees:             $3,800
Rent (mid-market urban location):        $7,500
Utilities (electric + water + others):   $2,400
Insurance (property + liability + UST):  $2,100
Repairs and maintenance (averaged):      $2,000
Vendor service contracts:                  $800
Bookkeeping + CPA:                         $900
Supplies and consumables:                  $500
Licenses, permits, fees:                   $400
Subscriptions (POS, ATG monitoring):       $350
Marketing (signage, loyalty if any):       $250
Bank fees (cash deposit, checks):          $200
Owner draw / management fee:             $5,000

Total operating costs per month:        $50,250
As % of $200k revenue:                   25.1%

(NOTE: This excludes COGS, the fuel and inventory you buy.
COGS runs roughly 75–85% of revenue at most gas stations,
leaving 15–25% gross margin. Operating costs come out of
that gross margin. Net profit is what's left after both.)

Where most owners underestimate

Five lines that consistently surprise first-time owners:

1. Credit-card fees on fuel.2.5–3% on $150,000/month of fuel-card volume is $3,750–$4,500. Most owners think their fees are 1–1.5% and don't realize until they look closely.
2. Repairs and maintenance.Averaged across the year you're probably at $1,500– $3,000/month. But specific months can spike to $10,000+ when something major fails.
3. Workers' comp insurance. Varies enormously by state. California operators often pay 15–25% on top of base wages. New owners budget for wages and forget the comp.
4. UST environmental insurance.Sometimes a separate policy from general liability. $200–$800/month. Often added after a state inspection flags the gap.
5. Bank deposit fees. Cash deposits and coin-roll exchanges cost $1–$5 per deposit at most business banks. At one deposit per day = $30–$150/ month, more for high-volume stations.

How operating costs scale with multiple stations

Some costs are largely per-station (payroll, rent, utilities, repairs). Others spread across the portfolio (CPA, bookkeeping, professional services, some subscriptions, owner draw).

At 3 stations the per-station cost typically drops 5–10% compared to single-store. At 8 stations it drops 15–20%. The economics of multi-store ownership work because shared costs (bookkeeping, accounting, owner time) get spread, not because operating costs per station drop dramatically.