Auto Repair Shop Profit and Loss Statement: What Your P&L Is Telling You About Location Two

Auto Repair Shop Profit and Loss Statement: What Your P&L Is Telling You About Location Two

Your accountant hands you the monthly P&L. You look at the bottom number. It is negative again. You close the file.

That sequence leaves money on the floor.

An auto repair shop profit and loss statement shows sales, cost of sales, gross profit, operating expenses, and net profit over a set period. Each block tells you something different. The bottom line is a summary. The story lives in the middle.

When your newer location is losing money, the P&L will show you why. You have to read it in order.

What an Auto Repair Shop Profit and Loss Statement Contains

A profit and loss statement, also called an income statement, summarizes revenue and expenses over a month, quarter, or year. It answers whether your shop made money and where that money went.

An auto repair shop P&L has five blocks:

1. Sales (revenue)
2. Cost of sales (direct costs to deliver the work)
3. Gross profit (sales minus cost of sales)
4. Operating expenses (rent, utilities, insurance, office wages)
5. Net profit (what remains after all expenses)

Most generic P&Ls put all wages in operating expenses. That hides the problem. Technician wages doing billable work belong in cost of sales. Office staff, managers, and service advisors who do not turn wrenches belong in operating expenses.

Get that placement wrong and your gross profit looks fine while the shop quietly loses money.

Sales: Split It to See What Is Selling

One line called "revenue" hides everything worth knowing.

Split sales into:

• Labor
• Parts
• Sublet
• Tires (if you sell volume)
• Supplies or shop fees

Each category has a different margin. Labor services usually have margins of 70-80%. Parts sales have margins of 20-40%.

If your newer location is doing $80,000 a month in sales but $50,000 is parts and $30,000 is labor, you are running a parts counter with bays attached. Parts deliver lower gross profit per dollar of revenue. Labor delivers higher gross profit.

Look at the split first. A revenue problem often turns out to be a mix problem.

Cost of Sales: Where Productive Wages Go

Cost of sales includes:

• Technician wages (for techs doing billable work)
• Parts you installed
• Sublet charges you paid
• Shop supplies directly tied to jobs

Do not put rent, utilities, or service advisor wages here. Those are operating expenses.

Cost of sales ties directly to the work you sold. If you sold zero repair orders this month, cost of sales should be near zero. Operating expenses will still be there.

Example: A shop sells $40,000 in labor in a month. Technician wages for billable hours total $8,000. Parts sales are $20,000. Parts cost is $14,000. Sublet is $5,000, sublet cost is $4,200.

• Total sales: $40,000 labor + $20,000 parts + $5,000 sublet = $65,000
• Total cost of sales: $8,000 wages + $14,000 parts + $4,200 sublet = $26,200
• Gross profit: $65,000 - $26,200 = $38,800

That gross profit of $38,800 has to cover rent, insurance, advisor wages, utilities, and everything else before you see net profit.

Gross Profit: Calculate It Separately for Labor and Parts

Gross profit is sales minus cost of sales. Most P&Ls show one gross profit number. That is not enough.

Calculate gross profit and gross profit margin separately for labor and parts. You are running two different businesses in the same building.

Labor gross profit margin:

Labor sales minus technician wages, divided by labor sales.

Example: $40,000 labor sales, $8,000 technician wages.

• Gross profit: $40,000 - $8,000 = $32,000
• Gross profit margin: $32,000 ÷ $40,000 = 80%

Parts gross profit margin:

Parts sales minus parts cost, divided by parts sales.

Example: $20,000 parts sales, $14,000 parts cost.

• Gross profit: $20,000 - $14,000 = $6,000
• Gross profit margin: $6,000 ÷ $20,000 = 30%

Gross profit margin for auto repair shops typically ranges between 50% to 60% overall. Labor margins run higher, parts margins run lower. Blending them into one number makes a labor problem look like a parts problem, or the reverse.

If your labor gross profit margin is under 70%, you are paying technicians too much per hour sold, billing too few hours per day, or both. If your parts margin is under 20%, your markup is too thin or your suppliers are expensive.

Operating Expenses: Every Line Has an Owner

Operating expenses include:

• Rent
• Utilities
• Insurance
• Service advisor wages
• Manager wages
• Office staff wages
• Marketing
• Software subscriptions
• Loan interest
• Depreciation

These are the costs that do not move with repair orders. You pay them whether you close five ROs or fifty.

A losing location usually has operating expenses that are too high for the current sales level, or gross profit that is too low to cover reasonable operating expenses.

Rent is fixed. Insurance is fixed. Salaries are mostly fixed. If your newer store is doing $65,000 a month in sales with $38,800 gross profit and $42,000 in operating expenses, you lose $3,200 every month until something changes.

You cannot cut rent mid-lease. You can look at every other line.

Are you paying an advisor to stand at an empty counter? Are you running the same utility bill at a slower location as at your busy one? Are you advertising without tracking what it brings in?

Every line needs an owner. If no one is responsible for the number, the number does not improve.

Net Profit: The Number After Everything

Net profit is gross profit minus operating expenses. Net profit margin for auto repair shops usually falls between 10% to 20%. A well-optimized shop can achieve net profit margins above 20%.

If your net profit margin is negative, you have three levers:

1. Increase sales (more repair orders, higher average ticket)
2. Improve gross profit (better labor margin, better parts margin, better mix)
3. Reduce operating expenses (fewer fixed costs relative to sales)

Most multi-location owners try to fix net profit by cutting operating expenses first. That works if expenses are bloated. It does not work if gross profit is the problem.

Run the math on your newer location. If gross profit per month is $38,000 and operating expenses are $42,000, cutting $2,000 from expenses still leaves you losing money. You need $4,000 more gross profit, which means higher sales or better margins or both.

Profit on the P&L Is Not Cash in the Bank

Profit on the income statement is not cash in the bank. Unpaid invoices show as revenue. Paid expenses reduce profit even if you used a credit card and have not paid the bill yet.

A shop can show net profit on the P&L and still run out of cash if receivables are high or if the owner took distributions before collecting.

The P&L tells you whether the business model works. The balance sheet and cash flow statement tell you whether the business can pay its bills. All three documents matter. The P&L is where you start.

What to Do With Your P&L Each Month

Print it. Read it in order. Compare it to last month and to the same month last year.

Ask:

• Did sales go up or down?
• Did the labor and parts split change?
• Did labor gross profit margin stay above 70%?
• Did parts gross profit margin stay above 20%?
• Did any operating expense jump without explanation?
• Did net profit margin move closer to 10% or farther away?

If you run multiple locations, print a P&L for each. Do not blend them. The profitable location will hide the losing one.

Your management software should generate a P&L automatically from closed repair orders. If it does not, your accountant can build one from your books. Either way, the report has to split revenue and cost by category and put technician wages in cost of sales.

A P&L that lumps everything together is decoration. A P&L that separates labor, parts, and operating expenses is a diagnostic tool.

When the Newer Store Is Losing Money

Your established location runs 180 repair orders a month. Your newer location runs 80. Both have the same tech count, same bay count, same rent per square foot.

The established store makes money. The newer one does not.

The P&L will show you why in four lines:

1. Lower sales (fewer ROs, lower average ticket, or both)
2. Lower labor gross profit margin (not billing enough hours per tech per day)
3. Lower parts gross profit margin (discounting to win work, or buying parts retail because you do not have volume pricing yet)
4. Same operating expenses as the established store (same manager salary, same utility bill, same software cost, spread over half the revenue)

You cannot fix all four at once. Pick the one that moves the number most.

If labor gross profit margin is 60% at the new store and 78% at the established one, that is the gap. Either the techs are slower, the labor rate is lower, or efficiency is poor. All three show up in the same margin.

If operating expenses are $38,000 a month at both stores but the new store does half the sales, the expense load is twice as heavy per dollar of revenue. You need higher sales or you need to cut fixed costs that do not scale.

The P&L does not tell you what to do. It tells you where to look.

Your P&L Is a Monthly Diagnostic

You would not ignore a check-engine light. Do not ignore your auto repair shop profit and loss statement.

Read it every month. Compare the blocks. Separate labor from parts. Put technician wages in cost of sales. Track gross profit margin for each revenue stream. Hold someone accountable for each operating expense line.

The newer location is losing money because one or more of those blocks is off. The P&L shows you which one. What you do next is operator choice.

If you want to talk through what the numbers are showing, reach out here.