Sourcing products comes down to a direct trade-off between upfront cash and your profit per sale. Buying in bulk gives you the lowest unit cost, but requires cash upfront and warehouse space. Sourcing on demand cuts your startup cash to near zero, but leaves you with thinner margins and less control over delivery.
This guide walks through the four main sourcing models, shows the real math behind wholesale landed costs versus dropshipping margins, and outlines the safety and customs rules every US store founder must follow.
Worked example: wholesale landed cost vs dropshipping margin
To see how sourcing changes your profit, compare two hypothetical founders selling a $30 item. Both stores receive 50 orders in their first month ($1,500 in sales). Every customer pays online with a card (2.9% + 30¢), totaling $58.50 in fees (2.9% of $1,500 ($43.50) + 30¢ × 50 ($15.00) = $58.50).
Store A: buys wholesale inventory upfront. Store A orders 100 units at $10.00 each ($1,000) with $150 freight ($1.50 per unit), for a landed cost of $11.50 per unit. Customer packing and postage cost $6.00 per parcel.
In month one, Store A sells 50 units:
- Sales: $1,500.00
- Landed product cost (50 × $11.50): $575.00
- Outbound customer shipping (50 × $6.00): $300.00
- Card fees: $58.50
- Operating profit: $566.50 ($1,500.00 − $575.00 − $300.00 − $58.50)
- Inventory remaining: 50 units (worth $575.00)
Store A made $566.50, but needed $1,150 upfront before selling a single unit.
Store B: sources via dropshipping. Store B lists the same $30 item. The dropshipping supplier charges $16.00 per unit, which includes customer shipping. Store B buys units only after receiving customer orders, and keeps a 5% reserve ($75.00) for returns or damage.
In month one, Store B sells 50 units:
- Sales: $1,500.00
- Supplier item and fulfillment cost (50 × $16.00): $800.00
- Outbound shipping: $0 (included in supplier charge)
- Card fees: $58.50
- Refund reserve (5%): $75.00
- Operating profit: $566.50 ($1,500.00 − $800.00 − $58.50 − $75.00)
| Sourcing model | Upfront inventory cash | Monthly profit (50 orders) | Unsold stock risk |
|---|---|---|---|
| Store A (Wholesale) | $1,150.00 | $566.50 | Yes (50 units held) |
| Store B (Dropshipping) | $0.00 | $566.50 | No (0 units held) |
At 50 orders, both make $566.50. At 100 orders ($3,000 sales, card fees $117.00), Store A sells the full batch and nets $1,133.00 ($3,000 − $1,150 stock − $600 shipping − $117 fees). Store B also nets $1,133.00 ($3,000 − $1,600 supplier − $150 reserve − $117 fees). But if Store A negotiates wholesale down to $8.00 per unit plus $80 freight ($8.80 landed cost), 100 orders yield $1,403.00 profit ($3,000 − $880 product − $600 postage − $117 fees)—$270 more than dropshipping.
Run it with your own numbers: selling price − landed unit cost − postage − card fee = profit per order. Use the profit per order calculator to test your own quotes.
Wholesale: for when you have capital and want the best margins
Wholesale is the classic retail model. You buy finished goods in bulk from manufacturers at discounted prices, store the inventory, and fulfill customer orders yourself.
- Lowest cost per unit: Buying in bulk lowers your per-item cost and leaves more margin.
- Full fulfillment control: You control unboxing presentation, product inspection, and same-day dispatch. See our shipping basics guide for carrier setups.
- The trade-off: Wholesale demands upfront capital. Suppliers enforce minimum order quantities (MOQs). If you buy 100 units at $10 each, you tie up $1,000 before knowing if the product sells.
Dropshipping: for testing products with zero inventory risk
In dropshipping, you list products without holding inventory. When an order arrives, you forward it to a supplier who ships directly to the customer. See our dropshipping explained guide for a complete breakdown.
- Zero upfront inventory: You purchase items only after a paying customer orders.
- Easy catalog testing: You can test new items without holding unsold inventory.
- The trade-off: Thinner margins because supplier prices include handling. You remain responsible for customer service and order tracking, and FTC rules allow credit card buyers to dispute charges for undelivered items within 60 days.
Print on demand: for custom designs and branded goods
Print on demand (POD) applies your designs to white-label blanks (t-shirts, mugs, totes). Providers print and ship each item as orders come in.
- No machinery or stock: No commercial presses, blank garments, or warehouse space required.
- Fast mockups: Use digital mockup tools to generate product photos without a photoshoot.
- The trade-off: Higher unit costs than bulk manufacturing, leaving modest margins until you reach higher volume. See our Print on Demand explained guide and Printify pricing guide.
Making your own: for handmade and proprietary products
If you handcraft proprietary items like candles, ceramics, or leather goods, you control production from raw materials to finished packaging.
- Full brand control: Unique products with no direct catalog competition and high perceived value.
- The trade-off: Your production volume is capped by manual working hours.
How to vet suppliers and order samples
- Demand physical production samples: Always inspect physical samples for material weight, seam stitching, and parcel durability. Digital photos do not reveal defects.
- Confirm minimum order quantities (MOQs): Ask if the supplier accepts a smaller trial run at a slightly higher unit price before placing full production orders.
- Verify traceable payment methods: Legitimate suppliers accept credit cards, letters of credit, escrow, or Net terms. Avoid untraceable personal wire transfers or mobile payments.
- Confirm lead times: Get clear production and shipping estimates so you can set realistic delivery expectations.
US safety rules: CPSC compliance for online sellers
Under the Consumer Product Safety Commission (CPSC), online sellers and importers are legally responsible for product safety. The CPSC Online Sellers’ Safety Guide applies directly to small importers and drop shippers.
General Certificate of Conformity (GCC)
For general-use (non-children’s) products subject to consumer product safety standards, US importers and domestic manufacturers must issue a GCC based on a reasonable testing program. Third-party lab testing is not strictly mandatory for general goods. You maintain the certificate yourself without submitting it for pre-approval.
Children’s Product Certificate (CPC)
For products intended primarily for children 12 or younger, federal rules are mandatory:
- Accredited testing: Items must pass testing at a CPSC-accepted, third-party accredited laboratory. Self-certification is prohibited.
- Issue a CPC: The importer of record or domestic manufacturer issues the CPC based on the passing lab test results.
- Tracking labels: Under CPSIA Section 103, children’s products and packaging must display permanent tracking marks showing manufacturer, date, location, and batch cohort.
US customs and importing basics
U.S. Customs and Border Protection (CBP) requires importers to exercise “reasonable care” when entering and valuing goods.
- Importer number: Customs clearance requires an importer number—typically your IRS Employer Identification Number (EIN). See our business basics guide for EIN setup.
- Informal entry ($2,500 or less): Under 19 CFR 143.21, commercial shipments valued at $2,500 or less generally qualify for informal entry with simplified paperwork and no customs bond.
- Formal entry (over $2,500): Shipments valued over $2,500 require formal customs entry and a CBP Form 301 surety bond. A licensed customs broker can manage classifications and clear port holds.
- De minimis limits: Under 19 U.S.C. § 1321, small imports up to $800 historically entered duty-free. However, CBP has suspended the de minimis exemption for international mail shipments. Budget for customs duties on imported inventory rather than counting on duty-free entry.
FTC shipping rules every seller must know
Under the FTC Mail Order Rule, sellers must have a reasonable basis for promised shipping dates:
- 30-day default: If no shipping timeframe is stated, you must ship within 30 days of receiving a completed order.
- Delay notices: If delays occur, you must notify the buyer promptly with a revised shipping date and the option to cancel for a full refund.
- Refund deadlines: Delay refunds must be issued within 7 working days (or within one billing cycle for card payments).
Review our legal pages and policies guide and returns and refunds process guide to keep your store policies compliant.
Common mistakes when sourcing products
- Ordering bulk inventory without testing a sample: Buying volume without holding a physical sample risks unsellable inventory with poor materials or bad sizing.
- Ignoring shipping and landed costs: Evaluating products solely on factory unit price ignores freight, duties, and customer postage. Always calculate full landed cost.
- Paying with untraceable wire transfers: Sending funds to personal bank accounts leaves zero buyer protection against fraud.
- Skipping children’s product safety rules: Selling children’s items without third-party lab testing and tracking labels violates federal law.
- Missing shipping expectations: Hidden fulfillment delays lead to chargebacks. Clearly communicate delivery times to comply with FTC rules.
How to decide your sourcing path this week
- Audit your starting budget: Under $500, test demand with print on demand or dropshipping. Above $1,000, consider wholesale for better margins.
- Shortlist 3 suppliers: Compare MOQs, production lead times, and accepted payment options.
- Order samples: Pay via commercial card to test durability, packaging, and transit time.
- Calculate landed costs: Add product price, inbound freight, and card fees to verify unit margins.
- Verify safety compliance: If selling children’s products, confirm third-party accredited lab test reports before placing production orders.
Sources (checked 2026-10-03)
- SBA: Calculate your startup costs, inventory purchasing and business expenses
- SBA: Choose a business structure, production and business operations
- Shopify: Dropshipping guide, dropshipping model mechanics and fulfillment
- Shopify: Inventory transfers, inventory tracking and supplier fulfillment
- Kitmere: Print on demand explained, print on demand model, fees, and provider comparisons
- CBP: Importing Into the United States, reasonable care, formal entry, and customs bonds
- CBP: Tips for New Importers and Exporters, informal entry thresholds, importer numbers, and customs brokers
- 19 U.S.C. 1321 (Cornell LII), the $800 statutory de minimis amount
- 19 CFR 143.21 (Cornell LII), informal entry up to $2,500
- CBP: E-Commerce, Section 321 de minimis regulations and trade enforcement
- CPSC: Business Guidance Library, consumer product safety statutory rules
- CPSC: General Certificate of Conformity, GCC rules and reasonable testing programs
- CPSC: Children’s Product Certificate, CPC rules and accredited third-party testing rules
- CPSC: Tracking Label Requirement, CPSIA Section 103 tracking labels for children’s goods
- CPSC: Online Sellers’ Safety Guide, consumer product safety for small importers and online sellers
- FTC: Mail, Internet, or Telephone Order Merchandise Rule, merchant fulfillment standards
- FTC: Online Shopping Advice, 60-day billing dispute window for undelivered merchandise
- Printify: Pricing, on-demand fulfillment mechanics
General information, not legal or tax advice.
