3-yr TCO
- License (3 yr)
- Hosting / cloud (3 yr)
- Dev upfront
- Dev ongoing (3 yr)
- Apps / extensions
Compare 3-year total cost of ownership across Magento Open Source, Adobe Commerce, Shopify Plus, BigCommerce, and Salesforce Commerce Cloud. Real cost data from 200+ stores I've worked with — license + hosting + dev + extensions all factored in. Built to help you avoid the $50k brochure-driven decision.
Tell the calculator your GMV bracket, B2B share, region, growth target, and current platform. It runs all 5 platforms in parallel and surfaces the cheapest, the best-fit, and what each platform hides in fine print. Pure client-side — no server round-trip, no email gate.
3-yr TCO
Directionally accurate within 15–25% for the median case in each GMV bracket. Use to rule out platforms — not to write a budget line.
Most TCO comparators are built by platform vendors and bias toward whoever paid for the report. This one is built by an Adobe-Certified developer who has done re-platform discovery on 200+ stores across all 5 platforms — the data points come from invoices clients have shared, not vendor pricing decks.
License fees, per-tx clauses, app/extension stacks, dev rates and infra costs are calibrated against the 200+ stores I’ve worked with across Magento, Shopify Plus, BigCommerce, and SFCC since 2017. Not what the platform sales deck says — what shows up on your invoices.
Most TCO tools dump 5 numbers on you and walk away. This one runs your inputs through a verdict engine and tells you which platform earns its license — based on B2B share, GMV stage, and growth profile. You can ignore the verdict, but you’ll know what the data says.
Each card has a “what’s hidden in this estimate” footer. Per-tx fees that compound at scale, GMV plan caps that force upgrades, SI partner premiums, custom-tier negotiation rooms. You leave knowing what each platform isn’t telling you.
I’ve done re-platform discovery for stores from $300k GMV up to $200M+. The cost models here come from the median of those engagements — not industry-report averages that bury the variance. Outliers are flagged in the FAQs.
License, per-tx fees, hosting model, dev cost, app stack, SI partner premium. Each is buried somewhere in vendor pricing pages — usually the most expensive one is the most carefully buried. The calculator surfaces all six side by side so the trade-offs become legible.
Magento Open Source is $0 license forever. Adobe Commerce is GMV-tiered ($30k–$150k+/yr). Shopify Plus is flat $24k/yr but adds 0.15% per-tx fee on every order regardless of payment method. BigCommerce caps GMV per plan ($1M Plus / $5M Pro / Enterprise above) which forces silent upgrades. SFCC starts around $200k/yr and scales fast. The license tier is the line you negotiate — everything else flows from it.
Shopify Plus charges 0.15% per transaction on top of payment-processor fees if you use Shopify Payments, 2.0% if you don’t (i.e. on Stripe / Adyen / Authorize.net). At $50M GMV that’s $75k–$1M/yr just for using your own gateway. BigCommerce and Magento charge zero per-tx. SFCC has none either, but bakes implicit margin into the license. The calculator surfaces this so it’s not a Year-2 surprise.
Magento Open Source: self-hosted ($6k–$30k/yr depending on traffic). Adobe Commerce Cloud bundles AWS-based hosting but charges separately for higher-tier infra and Fastly upgrades. Shopify Plus and SFCC are fully hosted (no separate infra line). BigCommerce same. Hosted platforms shift the cost to license; self-hosted shifts it to your DevOps + cloud bill. Three-year horizon flattens this difference.
Magento has the deepest customisation ceiling, and the highest dev cost: $20k–$80k upfront, $15k–$60k/yr ongoing. Adobe Commerce dev is similar but extension stack is lighter (B2B / RMA / segments are native). Shopify Plus dev is bounded by Functions and Liquid, so dev cost is lower ($12k–$30k upfront) but you hit the customisation ceiling fast. SFCC needs a certified SI partner ($80k–$200k+ upfront just for go-live) which is why the license-fee debate is moot at scale.
Shopify Plus apps run $1.5k–$3k/mo for a typical fashion or B2B store ($50k–$100k over 3 yrs). Magento extensions are mostly one-time (~$5k–$8k for a B2B-heavy stack). BigCommerce apps are middle ($6k–$12k/yr). Adobe Commerce includes B2B + RMA + segmentation natively, so extension spend stays under $3k. SFCC bakes most of this into the license fee. Apps are the line that grows fastest at scale — budget it like a SaaS subscription, not a one-time spend.
SFCC requires a certified Salesforce SI partner; rates run $250–$400/hr and most engagements start at $200k+. Adobe Commerce Cloud is similar tier-1 SI territory ($200–$300/hr). Magento Open Source has the widest dev pool (freelance to mid-tier $50–$150/hr). Shopify Plus has Plus Partners and Functions developers at $100–$200/hr but has the smallest senior-talent pool when you need real PHP/system architecture. The dev-pool tax is invisible in license tables — this calculator counts it.
Assess → calculate → compare → simulate growth → decide. The calculator is a screening tool — it tells you which platforms to take seriously and which to drop from the shortlist. The five steps below frame how to use it without over-relying on the brackets.
Get GMV, B2B share, region(s), and 3-year growth target. These four numbers drive every cell in the platform-cost matrix. Don’t use a planning estimate — use last 12 months of actual revenue + the growth multiplier in your board deck. Conservative wins here.
Inputs lockedRun the calculator. It evaluates all 5 platforms in parallel against your inputs and produces 5 totals + a breakdown (license, hosting, dev upfront, dev ongoing, extensions). Recompute as you change inputs — no rate-limit, no save state, no email gate.
5 platform TCOsCheapest is highlighted in green. Best-fit (based on your B2B share + GMV stage) is highlighted in orange. They’re often different platforms — cheap doesn’t mean right. Read the “hidden in this estimate” footer on each card to understand the trade-offs each platform doesn’t list on its pricing page.
Trade-offs surfacedToggle the growth multiplier (flat / 1.5x / 3x / 5x+). Per-tx fees and app spend scale with GMV; license + hosting don’t. The platform that’s cheapest at $5M GMV is rarely the platform that’s cheapest at $50M. Project to your 3-year target so the migration calendar gets the right answer.
Growth-adjusted viewRead the verdict. If you agree, book a 30-min call to pressure-test the assumptions. If you disagree, send the inputs over — I’ll calibrate the model against your real invoices and tell you where the calculator is off. No upsell. The point is the right decision, not Magento for everyone.
Decision madeMost re-platform decisions are genuinely close — the calculator helps then. But three situations have honest, decisive answers regardless of inputs. If you fit one of these, the calculator is a sanity check, not a discovery exercise.
Sub-$1M GMV, mostly D2C
B2B share ≥ 50% at $10M+ GMV
D2C-heavy, $25M+ GMV, time-to-launch matters
If the calculator surfaced a question — TCO bigger than expected, license tier confusion, migration cost, or vendor negotiation help — share the inputs and I’ll re-run the model against your real invoices. Written reply within 24 business hours. No upsell.
We will get back to you shortly.
Public Upwork reviews — clickable on each card. Same playbook for every TCO calibration: real numbers, honest verdict, no platform loyalty.
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