The break-even point is the sales volume — in units or in currency — where revenue equals total costs and operating profit is zero. Below that threshold the operation loses money; above it, each extra unit contributes to profit. For sales and operations it is the line that turns a quota into a defensible number, not a wish.
This guide brings it to Mexico–US logistics and 3PL: fixed fleet and distribution center (DC) costs, per-trip variables (diesel, tolls, accessorials), and tariff price. OCL Cargo is an autonomous TMS with agents: it can stamp the invoice and Carta Porte, builds a trip file, and leaves your team typed exceptions. When you audit 100% of the pilot flow, the typical pattern is recovering 5–7% of freight spend in 6–8 weeks — margin the break-even spreadsheet assumes and the operation sometimes never collects.
- operating profit at the threshold
- BE = 0
- units and MXN revenue
- 2 formulas
- sample MTY–Laredo lane
- 8 trips
- pattern when auditing 100% of freight
- 5–7%
Useful cluster: distribution costs · distribution KPIs · SMART goals.
What the break-even point is (short answer)
In managerial accounting, the break-even point is the activity level where sales contribution covers all fixed costs for the period. It is not “when we start invoicing”; it is when we stop losing money.
For a commercial director it matters because it sets the floor: how many trips, orders, or contracts must close so the structure (rent, payroll, fleet, software) stops draining cash. For operations it matters because every freight leak or unrecovered accessorial pushes real break-even to the right.
It does not replace a key performance indicator (KPI) dashboard or a SWOT analysis. Break-even answers one numeric question: From what volume does this business unit stop losing money?
Building blocks: fixed, variable, price, margin
Classify before you divide. The useful test: if volume is zero tomorrow, does this cost still exist? If yes, it is fixed (or nearly fixed). If it falls with volume, it is variable.
Fixed costs
What it is: Do not change with volume in the period
Mexico logistics example: Tractor lease, base pay, insurance, DC rent, TMS
Variable costs
What it is: Rise with each unit sold or trip
Mexico logistics example: Diesel, tolls, commissions, per-pallet handling, typical accessorials
Selling price
What it is: What you charge per unit (net, ex-VAT)
Mexico logistics example: Per-trip tariff, per-kg rate, or storage fee
Contribution margin
What it is: Price − variable cost: what remains for fixed costs
Mexico logistics example: $28,000 − $13,000 = $15,000 per trip
Contribution margin ratio is the same margin divided by price. It is the bridge to currency break-even when you mix SKUs or lanes.
Formulas: units and MXN revenue
Three numbers close the math — period fixed costs, unit price, and unit variable cost. Keep the same period everywhere (month with month, quarter with quarter).
BE (currency) = FC ÷ ((P − VC) ÷ P)
- FC
- Fixed costs for the period (MXN).
- P
- Net unit selling price (ex-VAT).
- VC
- Unit variable cost.
- UCM
- Unit contribution margin = P − VC.
Calculation
From costs to threshold
Sum fixed
Closed period
Set price
Net, ex-VAT
Variable cost
Per real unit
Divide
FC ÷ margin
The classic chart: loss vs profit
The diagram puts volume on the X axis and money on the Y. Fixed costs are a horizontal line; total costs start at that level and rise with the variable slope; revenue starts at the origin with the price slope. Where revenue and total costs cross is the break-even point.
FIGURE 1 · MEXICO LANE EXAMPLE
Break-even: 8 trips / $224,000 MXN
Fixed costs $120,000; tariff $28,000; variable $13,000 per trip. Left of the cross: loss. Right: profit.
Same geometry as the classic break-even chart, with the Mexico–US lane numbers from this guide.
Illustrative OCL example — calibrate with your real tariff and costs.
Mexico example: lane, DC, and 3PL
Take one business unit: a Monterrey–Laredo lane run with a dedicated tractor (owned or leased) plus a DC and tower allocation. The “product” sales/operations sell is the full trip.
| Line item | Monthly amount (MXN) |
|---|---|
| Tractor + trailer lease | $45,000 |
| Driver base pay + benefits | $35,000 |
| Insurance and permits (allocated) | $12,000 |
| Software / TMS + DC admin | $28,000 |
| Total fixed costs (FC) | $120,000 |
| Tariff charged per trip (P) | $28,000 |
| Variable per trip (diesel, tolls, typical accessorials) | $13,000 |
| Unit contribution margin | $15,000 |
| Break-even in trips | 8 trips |
| Break-even in revenue | $224,000 |
Commercial read: sales cannot promise to “fill the lane” with six trips a month at that tariff and expect profit. At eight trips you just break even; at twelve, extra contribution margin is 4 × $15,000 = $60,000 before other adjustments.
Multiple products or lanes: weighted margin
When you sell three lanes or a 3PL package (transport + storage + fulfillment), do not invent one magic price. Use the contribution margin weighted by the expected sales mix.
MTY–Laredo FTL
Revenue mix: 50%
Margin %: 54%
Weighted contribution: 27.0 pts
DC handling
Revenue mix: 30%
Margin %: 70%
Weighted contribution: 21.0 pts
Regional last mile
Revenue mix: 20%
Margin %: 35%
Weighted contribution: 7.0 pts
Weighted mix
Revenue mix: 100%
Margin %: —
Weighted contribution: 55%
Close cousin: a Pareto chart shows which lanes or customers concentrate margin; break-even shows the minimum volume you need with that mix. Pareto chart in logistics.
Sensitivity: price, fixed costs, and volume
Three levers move the cross. Before you sign a discount or add another fleet unit, re-run break-even — not “after the quarter”.
Cut price 10% ($28k a $25.2k)
Effect on BE (base example): UCM $12.2k to BE ≈ 9.8 trips
Sales read: The discount needs nearly 2 extra trips just to break even
Add +$30k fixed (another tractor)
Effect on BE (base example): BE ≈ 10 trips
Sales read: Lane minimum quota must rise before go-live
Cut variable $2k (diesel/deals)
Effect on BE (base example): UCM $17k to BE ≈ 7.1 trips
Sales read: Cost improvement frees room for volume or margin
Profit target +$60k
Effect on BE (base example): BE “with target” = (120k+60k)/15k = 12 trips
Sales read: Sales quota ≠ accounting BE; say which one you are promising
How sales leaders use break-even
Break-even does not replace commercial strategy; it puts a numeric floor under it. On Mexico–US logistics accounts it usually shows up like this:
- Quotas by lane: monthly minimum ≥ lane (or dedicated tractor) break-even — not an opaque national average.
- Price guardrails: every discount is measured in “extra trips to recover the same break-even”, not only in “close the account”.
- Contingency: if volume drops 20%, is break-even still reachable with the current mix, or do you freeze hiring and renegotiate fixed costs?
- Alignment with SMART goals: break-even gives the number; SMART turns it into deadline, owner, and evidence. SMART goals for C-Level.
Services vs products
The logic is the same; the unit changes. For a physical product, variable cost is often materials and packaging. For a logistics service, variable cost is time, kilometers, diesel, tolls, and event charges. The classic service mistake is treating all operating payroll as variable when part of it is fixed capacity (minimum shift, tower, supervision).
Unit
Product / SKU: Piece or case
Logistics service: Trip, pallet, order, or storage month
Typical variable
Product / SKU: Materials + pack + commission
Logistics service: Diesel, tolls, handling, commissions
Typical fixed
Product / SKU: Plant, rent, base pay
Logistics service: Fleet, DC, insurance, TMS, base payroll
Reading risk
Product / SKU: Ignoring scrap and returns
Logistics service: Ignoring unrecovered accessorials and demurrage
Checklist: an operable break-even this month
Close a defensible number in one working session. If a line has no owner and no source, it does not leave the sales meeting.
Elige un paso para ver el detalle
Detalle del paso · 01
Freeze period and unit
Step 1
From Excel to the trip file: what OCL executes
Break-even assumes you collect the price and pay the budgeted variable. In Mexico–US freight that assumption breaks when evidence is missing, the tariff does not match the CFDI, or an accessorial is paid without recovery.
OCL bridge
From threshold to collected trip
Register trip
Unique ID
Stamp docs
Invoice + Carta Porte
Audit pre-pay
Rate vs evidence
Exceptions
Typed exceptions — your team
OCL can stamp the invoice and Carta Porte when the fiscal flow applies, builds a trip file (rate, GPS, proof of delivery), and gives accounts payable a pre-pay decision with a cause. That keeps the contribution margin in your break-even from becoming budget fiction.
Key takeaways5 points
- Break-even = revenue = total costs: operating profit is zero; below you lose, above you gain.
- Units formula: fixed costs ÷ (price − variable cost). Currency formula: fixed costs ÷ contribution margin %.
- In Mexico logistics the “unit” is often the trip or a handling fee: fleet and payroll are fixed; diesel, tolls, and accessorials are variable.
- A price cut raises break-even more than it feels: margin narrows and you need more volume to cover the same fixed base.
- Excel break-even lies if freight leaks: without a trip file (rate, GPS, POD, CFDI/Carta Porte) real margin is lower than the budget.
Is your quota above break-even — or only above wishful thinking?
Related reading
- Distribution costs in Mexico logistics — commercial vs delivery layer and cost-to-serve.
- Distribution KPIs — OTIF, drop size, and trip-file metrics.
- Pareto chart — prioritize leaks that move margin.
- SWOT / FODA / DAFO analysis — strategic context around the number.
- SMART goals for C-Level — turn break-even into an owned, dated objective.
- What is a TMS? — trip registration vs execution.
- False freight digitization — when the system records but does not close the work.
Frequently asked questions
It is the sales volume (units or currency) where revenue equals total costs: operating profit is zero. Below that threshold you lose money; above it, you make a profit.
Break-even (units) = fixed costs ÷ unit contribution margin. Unit contribution margin is selling price minus variable cost per unit (ex-VAT).
Break-even (currency) = fixed costs ÷ contribution margin ratio. The ratio is (price − variable cost) ÷ price.
Yes — use a sales-mix weighted average contribution margin. If the mix shifts, break-even moves even when fixed costs stay flat.
To set minimum quotas by lane, decide discounts without destroying margin, and build contingency plans if volume drops or fixed costs rise (fleet, payroll, DC rent).
Work with net figures (ex-VAT). If you want a minimum profit, add it to fixed costs before dividing — that is “break-even with a profit target”.
Excel says how many trips you need; OCL helps each trip collect what was priced: it can stamp the invoice and Carta Porte, audits the trip file before payment, and cuts leaks that push real margin down. It coexists with your TMS.