FOR INDEPENDENT AUTO REPAIR SHOP OWNERS

Your door rate is not the rate you collect.

The number on the wall is $165. The number that reached the bank last month was $138.84, and nothing on any estimate said so. It went out as a coupon, a fleet account, a diagnostic hour thrown in to win the job, and a warranty claim paid at a rate somebody else set — none of which looked like a discount at the time. Put one month in below and see the real rate, exactly where the rest of it went, and what the posted rate would have to be to fix it.

What is my effective labor rate, and why is it lower than my door rate?

Should I keep taking warranty work?

Start from your repair orders

Export the month’s labor lines from your management system (or copy the cells from a spreadsheet) and paste them here. The first row must be column names: pay type, hours billed and labor sales are needed; technician and clock hours are optional. The totals fill the boxes below, and a per-technician rate appears under the result. Nothing is uploaded.

The month you billed

One month, straight off your management system’s labor sales report. Hours are book hours billed, not clock hours.

Labor sales only — leave parts, sublet, shop supplies and fees out of these two dollar figures, or the rate comes out too high. Internal hours are the ones a technician turned and nobody was invoiced for: comebacks, policy adjustments, your own shop vehicles, and the courtesy check that found nothing.

The technicians

The same month, all technicians together. This is what turns a rate into a margin.

Clock hours are the hours you paid for, however your technicians are paid — hourly, flat rate, or a guarantee. Pay includes payroll taxes, workers’ comp and benefits, because those are the cost of the hour too. Service advisors and the parts counter are overhead below, not technicians here.

What the shop costs

The same month, from your profit-and-loss statement.

Overhead is everything that is not technician pay or the cost of parts: rent, utilities, advisors and office staff, insurance, software, marketing, and owner pay for the hours spent running the business. Parts gross profit is parts sales minus what the parts cost — it pays some of that overhead, and labor has to carry whatever is left.

What you actually collect

This is the worked example the form opens on — a three-technician shop, not yours yet. Change the figures and press the button.

Fill in a month and the rate appears here.

Questions shop owners ask

The same answers the page publishes as structured data, so a search result and a visitor read the same words.

What is an effective labor rate?

Labor dollars divided by the labor hours those dollars were billed against. If you sold 365 hours last month and collected $50,675 of labor, your effective labor rate was $138.84 — whatever the sign on the wall says. It is the only number that tells you what an hour of your shop's time is actually worth, and no report on an estimate performs the division.

Why is my effective labor rate so much lower than my posted rate?

Because the shortfall arrives in pieces that never look like a discount at the time. A coupon, a fleet or wholesale account, a diagnostic hour waived to win the job, book time trimmed to close a sale, and warranty claims paid at a rate somebody else sets. Each one is small and defensible on its own, and none of them shows up as a line called discount. This page adds them back up and splits the total between customer-pay work, which the shop controls, and warranty, which it does not.

Should comeback and internal hours be in the effective labor rate?

Not in the headline figure, and this page keeps them out of it. The industry measures the effective rate over hours that were sold, which is what your management system reports and what you can check in a minute. Comebacks, policy work and shop vehicles were never sold at all, so they are shown separately two ways: as an effective rate over every hour your technicians turned, and priced at your door rate as the revenue those bays could have produced. Their cost is already inside your cost per billed hour, because payroll paid for them.

Why does raising my door rate not fix the gap?

Because you collect a new rate in roughly the same proportion as you collected the old one. A shop realizing 84% of a $165 rate and needing $175 an hour to reach its target gross profit does not need a $175 door rate — it needs about $208, because the coupons, the fleet accounts and the warranty mix are still there. This page computes both numbers and shows them together. It is the single most common way a rate rise lands short of what it was meant to fix.

What is the difference between cost per clock hour and cost per billed hour?

Cost per clock hour is what you pay a technician for an hour they are at the shop. Cost per billed hour is that same payroll spread over only the hours you sold. If you pay for 480 hours and sell 365, a technician costing $40 a clock hour costs $52.60 inside every hour that reaches an invoice. The gap is technician efficiency, and it is why two shops with identical pay scales can have very different labor gross profit.

How do you decide how much overhead labor has to carry?

Parts gross profit pays what it pays, and labor carries the rest. The break-even labor rate here uses your monthly overhead minus your parts gross profit, floored at zero. That avoids inventing an allocation percentage between the parts and labor departments, which is always a guess, and both inputs are lines you can read straight off a profit-and-loss statement.

Is my shop's data uploaded anywhere?

No account and no network requests — the calculator runs entirely in your browser. There is deliberately no shareable link: what your shop bills, what it pays technicians, and what its fixed expenses are should not ride in a URL. Saving a scenario writes the figures to this browser's own storage so you are not retyping them next month; clearing your browser data clears them. The optional usage counter records only which features were used and the day, never a number from your month.

Is this an accounting opinion?

No. It is your own numbers, divided. It makes no determination about tax treatment, technician pay classification, warranty contract terms, or how any figure should be recorded, and it does not tell you what to charge or what work to accept — your market, your contracts and your judgement do that. Check every figure against your management system and your accounts, and against a qualified professional, before pricing work with it.

What this is, and what it is not

This page divides the numbers you typed. It has no way to know your market, your competition, your warranty contracts or your customers, so it does not tell you what to charge, what work to take, or what to pay anybody — it says what the month you entered actually did.

It is not an accounting, tax, legal or employment opinion, and it makes no determination about how any figure should be recorded or how any technician should be paid or classified. Check every number against your management system and your accounts, and against a qualified professional, before pricing work with it.