Yes, if your worldwide taxable revenue exceeds 30,000 over four consecutive quarters, you must register for HST/GST and collect it on sales to Canadian customers. Once registered, you collect 13% HST in Ontario, 15% in Atlantic provinces, 5% GST in Alberta, BC, and other provinces, and 0% on exports to US customers (zero-rated). Amazon and Shopify typically handle collection at checkout automatically once you configure tax settings, but you’re responsible for filing returns and remitting the collected HST to CRA quarterly or monthly. You can claim Input Tax Credits for HST paid on business expenses, which often results in significant refunds for eCommerce sellers with high expenses. Our Mississauga eCommerce accounting clients typically recover 3,000-15,000 annually in ITCs that would otherwise be missed.

Amazon FBA fees should be categorized as cost of goods sold (COGS) or operating expenses depending on type. Referral fees (typically 15% of sale) and FBA fulfillment fees are generally COGS, monthly storage fees and long-term storage fees are COGS or operating expenses, advertising costs (PPC) are marketing/advertising expenses, and refund administration fees and miscellaneous fees are operating expenses. The key is pulling detailed transaction data from Amazon Seller Central settlement reports and properly categorizing each fee type. We use specialized tools like A2X that automatically import Amazon data, categorize fees, and push summarized entries into QuickBooks or Xero. This automation ensures accuracy and saves hours of manual reconciliation each month—critical for Mississauga Amazon sellers managing hundreds or thousands of transactions monthly.

Yes, if you have inventory in US Amazon FBA warehouses, you create “physical nexus” in those states and may have sales tax collection and filing obligations. However, Amazon now collects and remits sales tax on behalf of FBA sellers in most states (marketplace facilitator laws), which simplifies compliance significantly. You still need to register for sales tax permits in states where you have nexus, file returns (often zero-tax returns since Amazon collects), and potentially pay business activity taxes or other non-sales taxes in certain states. Some states also have economic nexus (revenue thresholds) that trigger obligations even without physical presence. For Brampton and Mississauga Amazon sellers, we recommend nexus analysis to determine where you have obligations and coordination with US sales tax specialists to handle registration and filing—typically 1,500-3,000 annually for multi-state compliance, which is money well spent to avoid future penalties.

Incorporation typically makes sense when your eCommerce net income reaches 75,000-150,000 annually. Benefits of incorporating include lower tax rates (12.2% corporate rate vs 20-50%+ personal rates in Ontario), liability protection (separating personal assets from business risk), easier sale of the business in the future (shares are more transferable than sole proprietorships), and access to small business deductions and other corporate tax benefits. However, incorporation adds complexity and cost (corporate tax returns, separate bookkeeping, legal/accounting fees of 3,000-5,000+ annually), requires formal corporate structure (minutes, share registers, etc.), and may create tax on withdrawing money personally. For most Mississauga eCommerce sellers, the tax savings exceed the costs once profit reaches six figures, but the decision depends on your specific situation—we provide incorporation analysis showing exact costs vs. benefits for your circumstances.

Tracking international inventory requires accounting for the full landed cost and timeline. Record purchase orders when placed with suppliers, accrue inventory and accounts payable when goods ship (title typically transfers FOB), track inventory in-transit during ocean freight (30-60 days), add customs duties, clearance fees, and freight to inventory cost when goods clear customs, and transfer inventory from in-transit to FBA when received at Amazon warehouses. Your inventory value should include product cost, international shipping, customs duties, broker fees, and domestic freight to FBA—the total landed cost. We help Oakville and Mississauga eCommerce clients implement perpetual inventory systems that track goods through the entire international supply chain, ensuring accurate COGS when products sell and proper inventory valuation on your balance sheet. This is especially important for year-end, when you may have 50,000-200,000+ of inventory on the ocean that must be properly recorded.

ACoS (Advertising Cost of Sale) measures your Amazon PPC spend as a percentage of attributed sales from those ads. Formula: Ad Spend divided by Ad Sales times 100. For example, if you spend 500 on ads that generate 2,500 in sales, your ACoS is 20%. TACoS (Total Advertising Cost of Sale) measures ad spend as a percentage of total sales (not just ad-attributed sales), showing overall advertising efficiency. TACoS is always lower than ACoS and more accurately reflects advertising’s impact on your entire business. Target ACoS varies by category and margins—high-margin products can sustain 30-40% ACoS profitably, while low-margin products may need 15-20% or less. We help GTA eCommerce sellers track ACoS and TACoS by product and campaign, calculate true profitability after advertising costs, and optimize ad spend to maximize net profit rather than just revenue growth.

Shopify payouts are net amounts after fees and refunds, so they don’t match gross sales. Each payout includes sales from several days, minus Shopify transaction fees, minus payment processing fees, minus refunds issued, and minus chargebacks. To reconcile properly, you need to track gross sales as revenue, record transaction fees as expenses, record refunds as contra-revenue (sales returns), and record chargebacks separately. We use tools like Link My Books or A2X for Shopify that automatically import Shopify data and create summary journal entries showing gross sales, fees, and refunds separately—then reconcile the net payout to bank deposits. This ensures your revenue is stated correctly (gross, not net of fees) and expenses are properly categorized. For Mississauga Shopify merchants processing 50,000-500,000+ monthly, automated reconciliation saves 5-10 hours per month and eliminates errors from manual entry.

Yes, if you use part of your home regularly and exclusively for your eCommerce business, you can deduct a proportionate share of home expenses. Calculate the percentage of your home used for business (e.g., 150 sq ft office in a 1,500 sq ft home equals 10%), then deduct that percentage of rent or mortgage interest (if renting), property taxes, utilities, home insurance, internet, and maintenance costs. For Brampton and Mississauga eCommerce sellers, a home office deduction typically saves 2,000-5,000 annually in taxes. However, you must meet the regular and exclusive use test—the space must be your principal place of business or used to meet customers/clients (rare for eCommerce). We help clients document home office use, calculate proper deduction percentages, and maintain records to support the deduction if CRA reviews your return.

A 1099-K is a US tax form that Amazon and other payment processors issue reporting your gross sales to the IRS. Even though you’re Canadian and may have no US tax obligations, Amazon issues 1099-Ks for US marketplace sales (Amazon.com, not Amazon.ca). The concern is that CRA receives information sharing from IRS through tax treaties, so they may know about your US sales revenue. You don’t file anything with IRS (unless you have US business nexus requiring US tax returns), but you must report all income on your Canadian tax return—including Amazon.com sales. Your T2125 (business income) or T2 (corporate return) should include worldwide revenue from all Amazon marketplaces, Shopify, and other channels. We help Mississauga eCommerce sellers properly report all income, reconcile 1099-K amounts to actual sales, and document everything to avoid CRA questions about unreported income.

eCommerce accounting fees vary based on sales volume, transaction complexity, and number of channels. For small sellers (under 200,000 annual revenue), monthly bookkeeping and annual tax returns typically cost 3,000-6,000 annually. For medium sellers (200,000-1,000,000 revenue), expect 6,000-12,000 annually for full-service bookkeeping, HST filing, and tax prep. For larger sellers (1,000,000+ revenue or multi-channel with complex inventory), fees range from 12,000-25,000+ depending on complexity. However, proper eCommerce accounting typically saves 2-5 times our fees through better tax deductions, HST optimization, and profitability insights that improve business decisions. We offer free consultations for Mississauga and GTA eCommerce sellers to assess your situation and provide transparent fixed-fee pricing based on your specific needs.