COMPANY FORMATION & BOOKKEEPING
Most eCommerce Brands
Can't Read Their Own Financials
They're Built for the Wrong Model
Amazon payouts net fees, refunds, and FBA charges against your balance — standard bookkeeping can’t reconcile them. Multi-state nexus creates compliance obligations most brands don’t know they’ve triggered. Eva provides US entity formation, ecommerce-native bookkeeping, sales tax compliance, and monthly reporting that reflects how your business actually works.
WHO THIS SERVICE IS FOR
Two Situations
One Service Built for Both
This service covers two distinct needs that often appear together. International sellers who need a US entity to sell on Amazon US — set up remotely, correctly , with the right structure from day one. And established brands on Amazon, Shopify , or both, who need financial clarity that a general accountant cannot provide because they don’t understand ecommerce economics.
International Seller
Launching in the US
You need a US LLC or C-Corporation, an EIN from the IRS, a US bank account, and a registered agent — all set up remotely , in the right sequence, without errors that cause delays at the seller account verification stage.
Established Brand that
Can't Read Its Own P&L
Your books show revenue but not profit. Amazon payouts are unreconciled. COGS doesn’t account for FBA fees and landed cost. You have no clear contribution margin by SKU — which means every growth decision is made on incomplete data.
THE PROBLEM
Ecommerce financials are a different category. Most accountants don’t know that.
A general accountant can file a tax return. They cannot reconcile an Amazon payout that nets marketplace fees, FBA charges, advertising costs, refunds, and reimbursements into a single disbursement. They cannot track COGS when fulfillment costs shift by quarter. These are ecommerce-specific problems.
WHAT EVA MANAGES
Four services. Built for ecommerce.
01.
US Company Formation
LLC or C-Corp, state of formation, EIN, registered agent, operating agreement, and US banking. Structured to meet Amazon Seller Central and Shopify Payments verification requirements.
02.
Ecommerce Bookkeeping
Direct API connection to Seller Central, Shopify, Walmart, and ad platforms. Transaction-level reconciliation. COGS calculated using landed cost methodology. The output is a P&L built for ecommerce economics.
03.
Sales Tax
Nexus analysis across all US states, registration, sales tax collection setup, and monthly or quarterly filing. Includes historical liability assessment for brands selling without prior collection.
04.
Monthly Financial Reporting
P&L, Balance Sheet, and Cash Flow built for marketplace economics. Contribution margin by SKU showing true unit economics after FBA fees, storage, advertising, and returns. Reports built to inform operational decisions, not just compliance.
EVA VS TRADITIONAL ACCOUNTANT
The eCommerce Expertise Gap
Capability
Amazon payout
reconciliation
COGS
methodology
Multi-state nexus
Contribution
margin by SKU
Platform
connectivity
US entity
formation
International
founder support
Inventory
valuation
Financial decision
support
Eva Commerce
Line-by-line: fees, refunds, FBA charges, reimbursements
Landed cost: freight, duties, FBA fees, storage per unit
Ongoing nexus analysis, registration, and filing per state
Monthly SKU-level margin after all variable costs
Direct API connection: Amazon, Shopify, Walmart, ad platforms
Full formation: entity type, state, EIN, bank, seller verification
Fully remote: LLC/C-Corp, IRS EIN, registered agent, banking
Monthly inventory valuation integrated with COGS reporting
SKU-level P&L used to inform ad spend, inventory , and margin decisions
Traditional Accountant
Cannot reconcile —
imports net bank deposit
Purchase price only
Not monitored —
liability accumulates
Not produced
Manual file upload or CSV import
Not offered / generic referral
Limited —
EIN process is unclear
Not tracked in ecommerce context
Compliance focus only
Case Studies
Morinaga
Scaling Amazon Growth Across US and Japan with Eva’s Unified Commerce System
- Amazon
Cricket
The Cricket Company Doubles Amazon Ad Sales While Improving Profitability with Eva’s Commerce Growth System
- Amazon
Happy Products
Scaling Amazon Revenue and Profit with Eva’s Growth System
- Amazon
Maelys
Scaling TikTok Shop Revenue While Increasing Shopify Conversion and Profitability
- TikTok
- Shopify
Perupima
Scaling Shopify Revenue and Conversion with Eva’s Conversion Intelligence
- Shopify
View All Case Studies
Hear from the brands growing
Eva helped us align our Amazon operations across the US and Japan into one system. By connecting advertising, content, and inventory, we gained better visibility and control over performance.
This allowed us to improve conversion, stabilize operations, and scale more efficiently across both markets.
Teruhiro Kawabe
Chief Marketing Officer
Eva brought structure and intelligence to our Amazon advertising. By combining AI-driven optimization with expert execution, we were able to double our ad sales within six months while maintaining strong return on spend.
Tina Fichera
VP of eCommerce, The Cricket Company
I see Eva as the system that connects demand, ranking, and conversion across Amazon, Shopify, and TikTok. Their combination of AI and expert operators has significantly increased our visibility while improving profitability.
Juliette Fasset
CEO, Happy Products Inc.
“Eva helped us turn TikTok into a real revenue engine, not just a content channel.
What changed was the structure. Creator activity became measurable, scalable, and directly tied to revenue.
We moved from unpredictable spikes to consistent growth.”
Beth Milligan
Operations Director, Drybar
Eva enabled us to unify Amazon advertising, data, and execution into one system. This allowed us to scale demand efficiently while maintaining strong control over profitability across markets.
Linda Vargova
Head of eCommerce, MyProtein
Proven Results Across the Eva Growth System
Real outcomes from brands using Eva across Amazon, Shopify, and TikTok
Across Channels
with Profit Focus
in 6 Months
Operational Costs
in 6 Months
Based on aggregated performance across Eva-managed brands
Frequently Asked Questions
I am not a US citizen. Can I form a US company and sell on Amazon?
Yes. Non-US residents can form a US LLC or C-Corporation and sell on Amazon US. Eva manages the entire process remotely: entity formation in your chosen state, EIN application with the IRS (which can be obtained without a US Social Security Number), registered agent appointment, and guidance on US business banking options for non-residents. The formation sequence matters — Amazon Seller Central verification requires specific documentation in a specific order, and errors at formation stage cause account verification failures that can take weeks to resolve.
What is the difference between an LLC and a C-Corporation for Amazon sellers?
For most international sellers and early-stage Amazon brands, an LLC is the simpler and more tax-efficient choice — it offers pass-through taxation, less administrative overhead, and straightforward ownership structures. A C-Corporation is typically chosen by brands seeking US venture capital or institutional investment, as it is the standard structure US investors expect. The right choice depends on your residency, tax situation, and growth plans. Eva assesses your situation before recommending a structure — not a one-size-fits-all answer.
What is economic nexus and how do I know if I've triggered it?
Economic nexus is a sales tax obligation triggered by the volume of sales you make into a US state — regardless of whether you have any physical presence there. Most states set thresholds at $100,000 in annual sales or 200 transactions. Once crossed, you are required to collect and remit sales tax for buyers in that state. Amazon does collect marketplace facilitator tax on your behalf for most states — but not all, and not always correctly. Eva conducts a full nexus analysis across all 50 states based on your sales data, identifies where you have unmet obligations, and handles registration and ongoing filing.
How does Eva reconcile Amazon payouts?
Amazon disburses payments every two weeks as a single bank transfer that nets dozens of components: gross sales, marketplace fees, FBA fulfillment fees, FBA storage fees, advertising charges, refunds, reimbursements, and reserve holds. A standard bank feed imports only the net transfer amount — which tells you nothing about the economics of your business. Eva pulls transaction-level data directly from Seller Central via API and reconciles each component separately, producing a P&L that shows actual revenue, actual fulfillment costs, actual advertising costs, and actual refund rates — not a single opaque deposit figure.
Do I need this service if I already have an accountant?
It depends on whether your current accountant understands ecommerce. If your P&L does not separate marketplace fees by category, does not calculate landed COGS correctly, and does not produce contribution margin by SKU — it is not giving you the financial visibility to make sound operating decisions. Eva is not a replacement for a tax attorney or CPA for complex tax strategy, but it is a replacement for general bookkeeping that cannot handle ecommerce transaction structure or provide ecommerce-specific financial reporting.
Your books should tell you which products are profitable.
If
they don't, something is wrong.
Eva sets up your US entity correctly, reconciles your marketplace payouts to the line, manages your nexus obligations across every state, and delivers monthly financials built for how ecommerce actually works.
