E-Commerce Bookkeeping Services for Online Stores
Multi-channel sales reconciliation and inventory cost tracking are eating your time. Twelix fixes your books and keeps them clean so you can focus on scaling your store.
Everything our e-commerce bookkeeping covers
What we handle for you, and the deductions we capture along the way — all built into how we run your books from day one. Nothing you need to bring to a meeting.
Deductions we track for you
Shipping & Fulfillment
Postage, packaging materials, 3PL warehouse fees, and shipping insurance.
Software & Subscriptions
Shopify, Amazon Seller fees, email marketing tools, and analytics platforms.
Product Photography
Studio costs, photographer fees, and editing software for product listings.
Home Office
Portion of rent, utilities, and internet if you run your store from home.
Advertising Spend
Facebook Ads, Google Shopping, influencer partnerships, and PPC campaigns.
Returns & Damaged Goods
Write off unsellable returned inventory and damaged products.

Clean books, handled for you
every single month.
Hand off the categorizing, reconciling, and reporting to a dedicated Twelix bookkeeper. You get CPA-ready financials on schedule — and your time back to actually run the business.
Book a Free ConsultationWhy Businesses Choose Twelix
We don't just keep your books, we give you the financial clarity to run your business with confidence.
E-Commerce Bookkeeping Challenges Which We Take Care of
Multi-Channel Complexity
Shopify, Amazon, Etsy, and eBay each have different payout schedules, fees, and reporting formats.
The cost: revenue gets miscounted and reconciliation eats hours every month.
Sales Tax Nightmare
Multi-state nexus, varying tax rates, and marketplace facilitator laws make compliance overwhelming.
The cost: you over or under collect tax and risk penalties in states you didn't know you owed.
COGS Tracking
Tracking cost of goods sold across product lines and suppliers requires precise inventory accounting.
The cost: your margins look wrong, so you price and reorder on bad numbers.
Payment Processor Reconciliation
Stripe, PayPal, and Shopify Payments each net out fees and refunds differently.
The cost: fees quietly erode profit and payouts never match your bank.
Inventory & Stock Valuation
Stock levels, write-offs, and valuation shift across warehouses and 3PL partners.
The cost: your balance sheet overstates assets and shrinkage slips by unnoticed.
Returns, Refunds & Chargebacks
High return volume brings partial refunds, restocking, and payment disputes.
The cost: refunds and chargebacks distort revenue and slip through uncategorized.
Deferred Revenue
Gift cards, store credit, and subscriptions are collected before they're actually earned.
The cost: revenue is recognized too early, throwing off every monthly report.
Shipping & Fulfillment
Freight, packaging, 3PL fees, and carrier surcharges change with every order.
The cost: these get lumped together, hiding your true profit per order.
Discounts & Promos
Frequent sales, bundles, and coupon codes change what revenue you actually keep.
The cost: gross and net revenue blur together, so margins look better than they are.
Multi-Channel Complexity
Shopify, Amazon, Etsy, and eBay each have different payout schedules, fees, and reporting formats.
The cost: revenue gets miscounted and reconciliation eats hours every month.
Sales Tax Nightmare
Multi-state nexus, varying tax rates, and marketplace facilitator laws make compliance overwhelming.
The cost: you over or under collect tax and risk penalties in states you didn't know you owed.
COGS Tracking
Tracking cost of goods sold across product lines and suppliers requires precise inventory accounting.
The cost: your margins look wrong, so you price and reorder on bad numbers.
Payment Processor Reconciliation
Stripe, PayPal, and Shopify Payments each net out fees and refunds differently.
The cost: fees quietly erode profit and payouts never match your bank.
Inventory & Stock Valuation
Stock levels, write-offs, and valuation shift across warehouses and 3PL partners.
The cost: your balance sheet overstates assets and shrinkage slips by unnoticed.
Returns, Refunds & Chargebacks
High return volume brings partial refunds, restocking, and payment disputes.
The cost: refunds and chargebacks distort revenue and slip through uncategorized.
Deferred Revenue
Gift cards, store credit, and subscriptions are collected before they're actually earned.
The cost: revenue is recognized too early, throwing off every monthly report.
Shipping & Fulfillment
Freight, packaging, 3PL fees, and carrier surcharges change with every order.
The cost: these get lumped together, hiding your true profit per order.
Discounts & Promos
Frequent sales, bundles, and coupon codes change what revenue you actually keep.
The cost: gross and net revenue blur together, so margins look better than they are.
Multi-Channel Complexity
Shopify, Amazon, Etsy, and eBay each have different payout schedules, fees, and reporting formats.
The cost: revenue gets miscounted and reconciliation eats hours every month.
Sales Tax Nightmare
Multi-state nexus, varying tax rates, and marketplace facilitator laws make compliance overwhelming.
The cost: you over or under collect tax and risk penalties in states you didn't know you owed.
COGS Tracking
Tracking cost of goods sold across product lines and suppliers requires precise inventory accounting.
The cost: your margins look wrong, so you price and reorder on bad numbers.
Payment Processor Reconciliation
Stripe, PayPal, and Shopify Payments each net out fees and refunds differently.
The cost: fees quietly erode profit and payouts never match your bank.
Inventory & Stock Valuation
Stock levels, write-offs, and valuation shift across warehouses and 3PL partners.
The cost: your balance sheet overstates assets and shrinkage slips by unnoticed.
Returns, Refunds & Chargebacks
High return volume brings partial refunds, restocking, and payment disputes.
The cost: refunds and chargebacks distort revenue and slip through uncategorized.
Deferred Revenue
Gift cards, store credit, and subscriptions are collected before they're actually earned.
The cost: revenue is recognized too early, throwing off every monthly report.
Shipping & Fulfillment
Freight, packaging, 3PL fees, and carrier surcharges change with every order.
The cost: these get lumped together, hiding your true profit per order.
Discounts & Promos
Frequent sales, bundles, and coupon codes change what revenue you actually keep.
The cost: gross and net revenue blur together, so margins look better than they are.
E-Commerce Bookkeeping FAQ
Yes. We reconcile revenue from Shopify, Amazon, Etsy, eBay, and other platforms into a single, accurate set of books.
We track your sales tax nexus obligations and ensure your books reflect the correct tax liabilities. For filing, we coordinate with your tax advisor.
Returns, refunds, and chargebacks are reconciled monthly so your revenue figures are always accurate.
Yes. We integrate with A2X, Shopify reports, Amazon Settlement reports, and other e-commerce accounting tools.
Absolutely. We set up and maintain cost of goods sold tracking for your entire product catalog.
Still have a question?
Drop us a line and we'll get right back to you.
More ways Twelix can help
More ways we keep your finances clean and current.
Industries We Serve
Specialized bookkeeping for 14+ industries, not one-size-fits-all templates.




