Bookkeeping for E-commerce Clients — How to Manage Multi-Channel Document Chaos

E-commerce clients are among the most lucrative and most operationally demanding clients a bookkeeper can serve. The revenue is attractive — a growing Shopify store or Amazon seller is a long-term relationship with expanding needs. The operational complexity is also significant: multiple sales channels, multiple payment processors, inventory cost tracking, sales tax nexus across numerous states, and monthly reports from platforms that change their export formats without notice.

The document collection problem is acute. A typical multi-channel e-commerce client operating on Shopify, Amazon, and Etsy, with PayPal and Stripe as payment processors, generates five or more distinct monthly data sources that need to arrive before you can reconcile. When the client sends them sporadically, in different formats, without a clear deadline — the month-end close for a single client can take three times as long as it should.

The solution is a structured onboarding document request and a standardised monthly collection template that tells the client exactly what to send, in what format, and by when.

What documents an e-commerce client needs to provide

Monthly (required every reconciliation cycle)

By sales channel:

Monthly sales channel reports — request by the 5th of each month for the prior month

• Shopify: Payments Payout Report (shows gross sales, refunds, fees, and net payout by date) — export from Shopify Admin → Analytics → Reports → Finances
• Amazon Seller: Settlement Reports (shows sales, FBA fees, advertising fees, refunds, and net payout) — download from Seller Central → Reports → Payments → All Statements
• Etsy: CSV export of orders and payments — Etsy Shop Manager → Finances → Payment Account
• eBay: Financial Transaction Report — download from Seller Hub → Performance → Financial
• Walmart Marketplace: Partner Performance Report and payment statement — download from Seller Center

By payment processor:

Monthly payment processor reports

• Stripe: Monthly Balance Transaction CSV — Stripe Dashboard → Reports → Balance → Download CSV
• PayPal: Monthly Transaction Activity Report — PayPal Account → Reports → Activity Download
• Square: Monthly Sales Summary — Square Dashboard → Reports → Sales

Other monthly items:

Other monthly e-commerce documents

• Inventory purchase invoices — any stock purchased during the month from suppliers
• Advertising spend summary — Meta Ads, Google Ads, or Amazon Ads monthly billing statement
• Returns and refund summary if not included in platform reports
• 3PL (third-party logistics) billing statement if using a fulfillment warehouse

At onboarding (one-time, from new e-commerce clients)

E-commerce client onboarding documents — collect before starting

• Sales tax nexus states — list of states where the business has sales tax obligations (economic nexus may apply if selling nationwide)
• Sales tax registration numbers for each nexus state
• Inventory costing method: FIFO, weighted average, or other — confirm with owner and document
• Beginning inventory value if business has operated before — cost of goods on hand at start date
• Prior year federal and state tax returns — to understand entity structure and prior depreciation
• Platform credentials or view access for any platform accounts you will reconcile directly
• Payment processor statements for the prior 3 months — to understand typical payout timing and fee structures
• Any existing chart of accounts or bookkeeping records

Building the monthly e-commerce document request

The most effective document request for an e-commerce client is not a general “send me your reports” email — it is a structured checklist with specific report names, specific download paths, and a clear deadline. You can use our free interactive Document Request Template Generator to instantly build customized checklists for e-commerce platforms.

E-commerce monthly document request

Generic — creates confusion

Hi! Could you send over your sales reports for last month when you have a chance? Also anything from Amazon and PayPal would be helpful.

Specific — enables immediate action

Hi [Name] — here is your document checklist for [Month]. Please upload each item to your portal by [Date 5th]:

1. Shopify Payout Report — Admin → Analytics → Finances → Download
2. Amazon Settlement Reports — Seller Central → Payments → All Statements (select [Month])
3. Stripe Balance CSV — Dashboard → Reports → Balance → Download
4. PayPal Activity Report — Account → Reports → Activity → [Month]
5. Any supplier invoices for inventory purchased in [Month]

Each item has its own upload slot in the portal. You’ll see a ✓ as each one is received. Questions? Reply here.

The sales tax documentation problem

Sales tax is the highest-complexity document element for e-commerce clients. A business selling across multiple states may have economic nexus in 20+ states — each requiring monthly or quarterly filings.

The document collection implication: you need state-by-state sales data, not just total sales. Most platforms provide this in their reports:

• Shopify: Finances Summary → Sales by State → Download
• Amazon: Tax Document Library → Sales Tax Reports → By State
• Etsy: Etsy remits marketplace facilitator taxes in most states — but this needs to be confirmed state by state

The practical note: economic nexus thresholds ($100,000 in sales or 200 transactions in a calendar year, in most states) mean a growing e-commerce client may cross thresholds mid-year. Include a quarterly nexus review as part of your standard e-commerce service.

Reconciliation workflow for multi-channel clients

Monthly reconciliation workflow for e-commerce clients

Confirm all reports received

Before starting reconciliation, verify all expected reports are in the portal. Do not start with incomplete data — partial reconciliation creates more work than waiting for the missing report.

Reconcile each channel to bank deposits

For each platform: match the payout shown in the platform report to the deposit in the bank statement. Platforms pay out net of fees — reconcile gross sales, platform fees, and net payout as separate line items.

Record platform fees as separate expense entries

Amazon FBA fees, Shopify subscription fees, Etsy listing fees, and payment processor fees are distinct expense categories. Do not net them against revenue — recording gross sales and gross fees separately provides more accurate P&L data.

Reconcile inventory

If the client tracks inventory, record cost of goods sold for the period. This requires knowing the unit cost of each product sold — most platforms provide a quantity sold report that you multiply by the unit cost from the inventory purchase records.

Prepare month-end reports

Deliver P&L and balance sheet, plus an e-commerce-specific summary: total revenue by channel, platform fee breakdown, and advertising spend as a percentage of revenue. This data is what drives the client’s business decisions — it is the output they actually use.

3.5×

longer average month-end close for multi-channel e-commerce clients compared to standard business clients, when document collection is unstructured — vs. 1.2× longer when collection follows a structured checklist

Source: Quire bookkeeper workflow survey, 2026

Complex clients need structured collection even more than simple ones

Quire’s document request templates let you build a reusable e-commerce checklist once — specifying which platform reports, which export format, and which monthly deadline. Assign it to every e-commerce client and they each get the same structured collection experience.

Build your e-commerce client template