One honest view of your true profit, across every channel.

TrueMargin helps multi-platform e-commerce sellers understand exactly which products, channels, and campaigns are actually making them money — after fees, ad spend, COGS, returns, and operating expenses.

Why we exist

Selling online has never been more accessible — or more confusing. A modern seller might list the same product on Amazon, Shopify, eBay, Walmart, and TikTok Shop simultaneously, with different fee structures, different ad costs, and different return rates on each. The result: most sellers can tell you their revenue, but very few can confidently tell you their actual profit on any individual SKU.

We started TrueMargin because we kept watching capable, hard-working operators make pricing, sourcing, and ad-budget decisions on incomplete data — and discover months later they'd been losing money on bestsellers. The numbers existed, scattered across a half dozen dashboards. Nobody had time to reconcile them.

TrueMargin pulls those numbers together, applies the math sellers should be doing manually but can't, and surfaces the answers in plain English: which SKUs are bleeding, which are ready to scale, and where the hidden fees and unattributed ad spend are eating your margin.

What makes us different

Multi-channel by default

One unified P&L across Amazon, Shopify, eBay, Walmart, TikTok Shop, and others — not a single-channel tool with bolt-ons.

True ACOS, not Amazon ACOS

We measure ad spend against total revenue, not just attributed revenue, so you see the real ad cost on every dollar earned.

Plaid expense tracking

Connect your business bank and we'll auto-categorize the expenses sellers usually forget — prep fees, software subscriptions, agency retainers — so your P&L is the one your accountant would draw.

Built for trust

Per-tenant data isolation, encryption at rest, audit logging, and a 30-day deletion guarantee. Read our Data Processing Addendum.

Our principles

Company

Legal entity
Pena International LLC, dba TrueMargin HQ
Founded
2026
Founder
Justin Pena
Headquarters
United States (registered) · operating internationally
Hosting region
United States (Vercel + Supabase, US)
General contact
Security incidents

For platform partners

TrueMargin integrates with major e-commerce platforms via their official APIs, on behalf of customers who explicitly authorize each connection. We comply with the Acceptable Use Policies and Data Protection Policies of each platform we integrate with, including the Amazon Selling Partner API. For technical or compliance questions from platform partners, please email security@truemarginhq.com.