Start With a Consistent Definition of CAC

Define furniture customer acquisition cost in Canada before comparing channels or setting a limit. A consistent formula is: total acquisition costs for a period divided by new customers acquired in that period. Use new customers, not total orders, so a repeat purchase does not make acquisition appear cheaper. A blended CAC covers every acquisition source; a channel-attributed CAC assigns costs to customers credited to one campaign or platform. The first is useful for deciding whether the business can keep acquiring customers overall. The second is useful for reallocating spend when attribution rules are consistent.

Include paid media spend, agency or contractor fees for acquisition, campaign-specific platform charges, creative production and testing, and commissions or referral fees paid to obtain a new customer. Include an acquisition offer such as a first-order discount or referral credit when it is granted to win that customer. Keep the treatment consistent for tax: do not mix recoverable GST/HST with net costs in one period. A CAC calculator can help document the inputs.

Keep fulfilment, product and general overhead outside CAC. That means product cost, packaging, picking, shipping, delivery, returns processing, warehouse costs, rent, salaries unrelated to acquisition, software used across the business and customer service. A shipping subsidy belongs with fulfilment unless it is separately defined as an acquisition promotion; state the rule rather than moving it between periods. ORVX can connect Shopify orders and advertising accounts, then report profitability alongside acquisition measures without treating revenue alone as profit.

Use First-Order Margin as the First Ceiling

Set the first ceiling from what the first delivered order contributes, not from its selling price. Use realized selling price after discounts, excluding GST/HST collected, then subtract product cost, payment fees, shipping support, expected refund or return cost, and any other order-level variable costs. The result is the maximum first-order CAC that can break even before fixed overhead and profit.

For example: a $1,200 furniture order less a $100 discount produces $1,100 in realized revenue. After $500 product cost, $40 payment fees, $100 shipping support and an $80 return allowance, $380 remains. A $380 CAC consumes the entire first-order contribution; a $250 CAC leaves $130 before overhead. That makes $380 a ceiling, not a target.

Use this measure when deciding whether a prospecting campaign can pay back on order one. Compare it with actual CAC in the CAC calculator, keeping the same cost definitions across channels. ORVX calculates realized revenue from delivered orders, derives product-level costs and margins, and reports contribution after advertising, so returned or cancelled furniture orders do not make the ceiling look higher than it is.

Worked example with sample numbers

This example is illustrative. It uses sample numbers for a furniture store selling in Canada. They are made up to show the method, they are not a benchmark, and your own figures will differ.

Formula: Ceiling = margin per order x orders per customer / target ratio.

Sample numbers: the most you can pay for a customer
Orders per customerMargin earnedCeiling at a 3:1 target
1.0C$50.88C$16.96
1.5C$76.31C$25.44
2.0C$101.75C$33.92
3.0C$152.63C$50.88

Run the same sum with your own numbers in the free calculator, or browse guides for sellers in Canada and more furniture guides.

General information only: tax, duty and import rules change and depend on your situation, so check with an accountant or the official source before acting.

Eligible Shopify stores can see these numbers for their own store through the Founding 10,000 offer.

Build a Margin Bridge Before Setting the Limit

A selling price is not an acquisition budget. Build the bridge from delivered-order revenue to the contribution that remains after costs that rise with the order. Gross margin helps diagnose product economics; contribution margin is the more relevant measure for deciding how much acquisition cost an order can carry.

Start with the amount actually retained from a delivered order: remove discounts, tax collected on behalf of the government, refunds and any customer shipping amount that does not cover the shipping cost. Then subtract product cost, inbound or outbound freight, payment fees, packaging, installation, and a reasonable allowance for returns or damage where those costs vary with the order. The Canada Revenue Agency publishes the applicable GST/HST rates by province; do not treat those collected taxes as furniture revenue when building the bridge.

For illustration only, $1,000 of retained order revenue less $550 of product cost, $80 of delivery cost, $40 of payment fees and $30 for expected returns leaves $300 before advertising. If the business needs to retain $100 per order for overhead or profit, the arithmetic leaves $200 as the maximum CAC for that order type, not a target that every campaign should spend. Fixed rent and salaried payroll may not belong in the per-order contribution line, but they still determine whether the retained contribution is sufficient at the month or collection level. Recalculate the bridge when delivery zones, product mix, discounting or return behaviour changes.

Set the allowable CAC from the final bridge line, less any contribution you need to retain. Then check cash separately. Inventory purchases, inbound freight, payroll, refunds and payment timing can make spendable cash lower than accounting contribution. The CAC calculator can test the arithmetic, while ORVX reports contribution after advertising by product and collection.

Margin bridge for a Canadian furniture order
Bridge lineCalculationWhat it is used for
Realized revenueDelivered selling price after discounts, excluding GST/HSTThe revenue base; not cash available for ads
Gross profitRealized revenue − product costProduct economics and gross margin
Contribution before advertisingGross profit − variable fulfilment, payment and return costsThe pool that can carry CAC
Allowable CACContribution before advertising − required retained contributionThe acquisition limit for the order
Cash availableContribution adjusted for working-capital timing and other cash needsA liquidity check, not a replacement for margin

Let Repeat Orders Change the Allowable CAC

A first-order CAC ceiling protects the cash economics of the acquisition. A lifetime CAC limit asks a different question: how much additional contribution can a new customer generate after the first delivered order? If the first order contributes $180 and a retained customer is expected to generate another $120 after returns, fulfilment and other variable costs, the long-run acquisition limit is $300, not because every customer places a second order, but because its expected contribution can support part of the initial cost.

Use expected contribution, not a promise of repeat revenue. Estimate the share of customers who place a second order, the contribution from that order, and the time until it arrives. For illustration only, if 40% of customers are expected to place a later order contributing $150, the repeat contribution is $60 per acquired customer before accounting for timing. Reduce that estimate for refunds and returns, then decide how long the business can carry the unrecovered CAC. A customer acquired today who recovers the cost in 18 months creates a different cash requirement from one who recovers it in 60 days.

The first-order limit is the right measure when cash is tight, retention data is sparse or product returns are still unstable. A lifetime limit is useful when repeat behaviour is measured by cohort and later-order contribution is reliable. ORVX shows customer-level profitability, repeat behaviour and return rate by units and refund value against revenue, so you can compare expected recovery with observed results rather than treating every repeat order as certain. Use the CAC calculator to test both limits.

Read the Worked Example Without Copying Its Assumptions

Treat the worked example as a calculation pattern, not as a benchmark for your store. Replace every assumption with your own realized order data: if a delivered order produces $1,200 after discounts, and variable product, payment, delivery and service costs total $850, the pre-acquisition contribution is $350 ($1,200 − $850). That $350 is the first-order CAC ceiling if the order must pay for acquisition immediately. A CAC of $275 leaves $75 from order one; a CAC of $400 does not.

Then separate the first-order decision from the repeat-purchase decision. If a retained customer generates two later orders, each contributing $180, lifetime contribution before CAC becomes $710 ($350 + $180 + $180), but only if those orders and their timing are supported by your data. The payback point is when cumulative contribution reaches CAC: at $275 CAC, the example pays back during the second order, not at the first purchase. Test sensitivity by changing return rate, discounts, delivery cost, margin, repeat rate and order timing. A small change that moves payback beyond your cash tolerance should lower the allowable CAC.

Sources

How this page was made: drafted with AI from a brief, then checked by automated rules for arithmetic, sources and duplication. The sample numbers were calculated, not reported.