When a tech works an after-hours call at time-and-a-half, your labor cost on that ticket goes up immediately. If you price the job using the same hourly labor number you use during the day, that cost increase has nowhere to go except margin. The fix is straightforward: put the after-hours cost into the Hourly Labor Rate field before you run the numbers.
This post shows exactly how to build that after-hours rate, how to enter it in the job profit calculator, and what to do when a ticket mixes straight-time and overtime hours.
What Actually Changes When the Call Is After Hours
Three things happen at once when a tech picks up an after-hours or weekend call:
- The wage rises — at minimum, to the rate you have agreed to pay for that time. Whether that is a contractual night premium or the federally required overtime rate, it is higher than the straight-time wage.
- Payroll taxes follow the wage — employer Social Security, Medicare, and unemployment contributions are calculated on actual wages paid, including the overtime premium.
- Workers' compensation may follow — many state codes and carrier policies calculate comp premium on gross payroll. If gross payroll goes up, comp cost often does too.
Overhead does not change for a single call. Your truck note, software, shop rent, and general liability premium exist whether or not the phone rang at midnight. That is why you do not multiply your full overhead-loaded rate by 1.5 — you would overstate cost and potentially over-price yourself out of emergency work.
The one field that matters: The calculator's Hourly Labor Rate field takes the cost of one labor hour, not a billing rate and not a wage. After-hours pricing is just a matter of putting the correct after-hours cost into that field.
Building the After-Hours Hourly Cost
When to Use Wage × 1.5 vs. Burdened Rate × 1.5
This is the most common place people go wrong, so work through it carefully before reaching for a multiplier.
Your daytime burdened labor rate already includes the wage plus employer payroll taxes, workers' comp, and benefits — all loaded into one per-hour figure. That full burdened rate reflects straight-time cost. When you need the after-hours equivalent, you have two components to consider: the wage portion and the burden portion.
- The wage portion increases at the premium rate you pay (1.5× at minimum, or whatever your shop agreement specifies).
- Burden that scales with wages (payroll taxes, comp) also increases in proportion to the higher wage.
- Burden that does not scale with wages (fixed benefit costs — employer health contribution, retirement match) stays the same per hour regardless of the rate paid.
The practical safe approach for most shops: use burdened rate × 1.5 and accept a slight overstatement of fixed benefits. It is conservative, easy, and will not leave cost uncovered. If fixed benefits are a large share of your burden — think heavy employer health contributions — you can be more precise with the method below.
The precise method separates the rate into its pieces:
Made-up example figures (not typical rates; not advice on what to pay or charge):
Compare that to the safe method on the same numbers: the straight-time burdened rate is $28.00 + $4.30 + $4.70 = $37.00. Multiply by 1.5 and you get $55.50. The difference ($55.50 vs. $53.15) is $2.35 — the cost of using the simpler approach. Whether that matters depends on ticket volume and benefit spend. Either method produces a defensible after-hours cost input.
Warning: Do Not Double-Count Overhead and Burden
The calculator has a separate Overhead & Burden % field. If your company runs a uniform overhead rate on every job, and that overhead rate already includes overhead items but not the payroll burden on wages — which is the correct setup for the burdened-rate method — then the above calculation is clean.
Problems appear when:
- Your "overhead %" includes payroll taxes or comp (because someone rolled them in years ago). If you also build them into the burdened rate, you pay for them twice.
- You use a simplified flat "labor cost" that is just the wage, then try to account for burden entirely inside the overhead %. On an OT job, that overhead % will not scale up to cover the higher comp and tax cost.
The cleanest split: payroll taxes and comp travel with the burdened rate (they follow the wage). Truck, shop, tools, software, and insurance that do not scale with payroll live in the overhead %. If you need to audit which items belong where, the burdened labor rate walkthrough covers the line-by-line method.
Running the Calculator for an After-Hours Call
Open the job profit calculator and work through these fields in order:
- Hourly Labor Rate: Enter your after-hours cost per hour — the figure you built in the section above. This is a cost, not a charge-out price. The calculator builds the margin on top of it.
- Hours: Enter the total billable labor hours for the call, including time on site.
- Number of Workers: If you send two techs, set this to 2. The calculator multiplies hours × workers × hourly rate.
- Material Cost and Material Markup: Parts are parts — no change from daytime pricing. Enter actual cost and your standard markup.
- Overhead & Burden %: Use the same rate you use on daytime tickets. Overhead does not rise for a single after-hours call.
- Drive time: The calculator bills drive time once at the hourly labor rate. On an after-hours call, if the tech driving is also on OT, the drive-time cost is also at the OT rate — make sure your Hourly Labor Rate input reflects that.
- Target margin: Use the same margin target you use on all work unless your shop policy sets a different floor for emergency calls.
The price the calculator returns is the number that covers after-hours labor cost, materials, overhead, and your margin. That is what goes on the quote.
Worked Example: HVAC Emergency No-Cool Call
A tech gets dispatched on a Saturday evening for a residential no-cool call. The job turns out to be a failed contactor — a straightforward swap that takes 1.5 hours on site, plus 30 minutes drive. All figures below are made-up and chosen only to make the math easy to follow; they are not market rates or advice.
The shop's straight-time burdened rate is $37.00/hr (daytime). Using the safe method, after-hours cost is $37.00 × 1.5 = $55.50/hr.
If the tech had been priced at the daytime rate of $37.00, the same ticket would yield approximately $183 before verifying margin — the delta reflects the uncovered OT cost that would have come out of profit. See the HVAC job pricing guide for a full breakdown of how these fields interact on HVAC service calls generally.
Mixed Straight-Time and OT Hours on One Ticket
Some tickets start during regular hours and run into overtime. A tech clocks in at 7 AM and the job runs until 6 PM, crossing the daily threshold partway through. The labor cost on that ticket is not all straight-time and not all OT.
You have two clean options:
Option A: Two Calculator Runs
Split the ticket into its straight-time hours and its OT hours, run the calculator twice, and add the two results together.
- Run 1: straight-time burdened rate, straight-time hours, no materials.
- Run 2: after-hours burdened rate, OT hours, full materials and overhead on this run only (or split materials proportionally — either way, total once).
Be careful not to apply overhead twice unless you intend to. One approach: run the materials and overhead % on one of the two runs and leave them at zero in the other.
Option B: Weighted Average Rate
If the ticket has a known split, blend the two rates into a single weighted average and run the calculator once.
Made-up example: 6 straight-time hours at $37.00 and 2 OT hours at $55.50, for 8 total hours.
Enter $41.63 in the Hourly Labor Rate field and 8 in Hours. The calculator then applies materials, overhead, and margin once across the full ticket. This is arithmetically identical to two separate runs done correctly, and is easier when you know the split at quote time.
When you do not know the OT split at quote time: Quote at the OT rate for all hours. If the job finishes without hitting OT, you have room in the ticket. If it hits OT halfway through, the cost is covered. Quoting at straight-time on a job that might go long is the riskier direction.
Weekend and Night Premium vs. True Overtime After 40 Hours
Not every after-hours call involves an employee who has already logged 40 hours that week. Understanding the distinction matters for pricing.
Two Different Scenarios
Scenario 1 — Shop night/weekend premium: Your employment agreements or company policy specifies a premium for evening or weekend calls, regardless of hours worked that week. The tech may have worked 20 hours so far. You pay the premium because you agreed to, not because any law requires it yet. Use the premium rate you actually pay to build the after-hours cost. Do not assume 1.5× if your agreement says 1.25× or 2×.
Scenario 2 — True overtime after 40 hours: Federal law (the Fair Labor Standards Act) requires at least 1.5× the regular rate after 40 hours in a workweek for most non-exempt employees. Some states set a lower threshold (daily OT in California, for example). If the after-hours call falls after the tech's 40th hour, you must pay at least 1.5× and your cost input must reflect that.
For pricing purposes, the rule is simple: use the rate you will actually pay. If you owe 1.5× by law, use 1.5×. If you owe 1.25× by policy, use 1.25×. If you agreed to 2× for Sunday calls, use 2×. The calculator does not know your pay policy — it knows only the number you put in.
FLSA note (one line): Federal overtime law sets 1.5× regular rate after 40 hours/week as the minimum for non-exempt employees; state law may be stricter. This post is pricing math, not employment law guidance — ask your labor attorney or HR professional about compliance.
Sanity Checks and Common Mistakes
Mistake 1: Using the Daytime Rate on an OT Call
The most expensive single habit in after-hours pricing. You quote based on $37/hr loaded cost and actually pay $55.50/hr. The $18.50 difference on a 2-hour call is $37 straight off margin. Run the number before sending the quote, not after the tech is back in the van.
Mistake 2: Multiplying the Customer Price by 1.5 Without Updating Cost
Some shops charge customers 1.5× the normal invoice on after-hours work, which is a reasonable policy — but the question is whether the cost basis was updated too. If your normal invoice is already built on straight-time labor cost, and you multiply the whole invoice by 1.5, you are roughly safe on labor but over-collecting on materials and overhead. More common: shops bump the invoice without ever changing the cost input, then wonder why after-hours jobs look profitable on paper but never feel profitable in the bank. Rebuild the cost first, then set the price.
Mistake 3: Forgetting That Payroll Taxes Apply to OT Wages
Employer FICA — 7.65% of wages up to the Social Security wage base — applies to the full OT wage. If your burdened rate calculation treats payroll taxes as a flat dollar add-on at the straight-time wage level, that add-on understates the tax cost on an OT hour. The safe-method multiplication (burdened rate × 1.5) captures this automatically. The precise method above captures it explicitly. Either way, make sure the tax component is scaling with the wage.
Mistake 4: Owner-Operator vs. W-2 Tech
If you are the owner and you do the after-hours call yourself, the economics are different. You may not pay yourself formal OT if you take draws rather than W-2 wages. The cost of your hour is still real — it has an opportunity cost and a value that needs to be in the price — but the payroll-tax math does not apply in the same way as it does for a W-2 employee. Do not apply a 1.5× payroll-tax burden to a draw-based owner compensation. At the same time, do not use zero as the cost of your own time. Build an internal rate for your hours that reflects what you need the business to return per hour, then use that for owner-labor calls. Your tax professional can advise on the distinction between wages and draws.
Sanity-Checking the Output
Before sending the quote, ask three questions:
- Does the price cover the after-hours labor cost at the rate I will actually pay, not the daytime rate? If not, find the entry error.
- Did I apply overhead once, not once in the burdened rate and again in the overhead field? Cross-check your setup against the burdened labor rate walkthrough if unsure.
- Does the quoted price produce a margin at or above my floor on the calculator output? If the margin line is below target, the price on the quote is below target — adjust it before the ticket goes out.
Two Quick Questions
Do I charge the customer a different price for after-hours, or just make sure my cost is right?
Both. Your cost input must reflect OT labor so the math works. What you charge the customer is a separate business decision — some shops charge a flat emergency fee, others price the ticket at full after-hours cost and standard margin, and others price at standard margin on the higher cost plus an explicit dispatch surcharge. Any of these can produce a healthy margin as long as the cost basis is correct. The mistake is charging the customer more without ever updating the cost input, or updating the cost input and then forgetting to adjust the margin target.
What if I use a flat service rate, not an hourly rate, on after-hours calls?
A flat rate for the call is a pricing strategy. The underlying cost question is the same: is the after-hours labor cost — at the rate you will actually pay — recovered in that flat rate? Build the hourly cost first using the method above, multiply by expected hours, add materials and overhead, and back-test that cost against the flat rate you charge. If the flat rate covers cost and margin at the high end of expected job length, it is defensible. If the flat rate is the same number you set three years ago at straight-time cost, run the check before the next call goes out.
Bottom Line
After-hours pricing is not a separate system. It is one input change: the Hourly Labor Rate in the calculator reflects OT cost instead of straight-time cost. Build the rate from the wages you will actually pay plus the burden that scales with those wages. Apply your normal overhead percentage — it does not change for one call. Run the calculator at the same target margin. The number that comes out is the quote that covers the job.
If you have never cross-checked whether your burdened straight-time rate is correct before multiplying it, that is the right place to start: What Is a Burdened Labor Rate for Contractors?. Once that number is right, the after-hours version is arithmetic.
Run the Numbers on Your Next After-Hours Call →
This article is for educational purposes — pricing math and general business concepts only. It is not legal, tax, employment, or financial advice. FLSA and state wage-and-hour requirements are legal matters; consult a qualified attorney or HR professional for compliance guidance specific to your situation. All dollar figures are made-up examples chosen for illustration.
