How much money and inventory do I realistically need for a first Amazon FBA test?

Selling & Business Models

How much money and inventory do I realistically need for a first Amazon FBA test?

The short answer

There is no responsible universal dollar amount because product cost, order minimum, size, preparation, shipping, duties, and Amazon fees vary widely. For a first test, buy the smallest quantity that can answer the demand and margin question without making the supplier price unrealistic. Your cash plan must cover more than inventory.

Build a landed-cost budget

Include:

  • samples and product testing.
  • first inventory order.
  • inspection, labels, packaging, and preparation.
  • freight to you, a prep center, or Amazon.
  • customs, duties, or brokerage when applicable.
  • Amazon selling, referral, fulfillment, storage, and placement fees.
  • launch promotion or advertising.
  • returns, removals, and damaged inventory.
  • a reorder and household-safe cash reserve.

Amazon says FBA costs can include per-unit fulfillment, monthly storage, aged-inventory charges after the stated storage period, returns processing, removal or disposal, and inbound placement. Its FBA cost overview is the current starting point.

Size the first order from evidence

Estimate conservative monthly unit sales, then choose a short test window that still allows restocking before you run out. Suppose your conservative estimate is 30 units a month, supplier lead time plus inbound time is 45 days, and you want a 60-day test. Two months of forecast demand is 60 units. Add a modest safety amount only if the supplier lead time and cash allow it.

Do not use “order 500 to get the best unit price” as the starting logic. If 60 units cost $9 each and 500 cost $6.50, the smaller order costs $540 while the bulk order costs $3,250. The bulk order saves $2.50 per unit but puts $2,710 more into unproven inventory.

Work one full example

Imagine this lean test:

Item Example amount
60 units at $9 $540
Samples and inspection $120
Prep and inbound shipping $210
Listing creative and setup $130
Launch and problem reserve $500
Cash before reorder $1,500

This example is not a recommendation. It excludes duties and category-specific requirements and may be far too low for some products. Add the current Amazon fees with the Revenue Calculator, then maintain a separate worksheet for costs the estimate does not include.

Protect the reorder

Selling the first batch is not enough if you spend all the proceeds before replenishing. Estimate the reorder deposit and freight, then decide how much cash must stay in the business. Payment timing, returns, and reserves can delay what is actually available.

Amazon's inventory-management guide warns that excess inventory ties up resources and adds storage costs, while too little stock can disappoint buyers. Your first order is a balance between those risks, not a race to the lowest unit cost.

Before paying a supplier, confirm product restrictions, labeling, safety, import, and documentation rules for your category and market. These vary. Use the appropriate regulator or qualified local professional when requirements are unclear.

WAHMN's Amazon FBA can help you turn these inputs into a complete first-test plan.

Sources and further reading

A free next step

You don't have to build this alone

Bring your questions, share what you're working on, and meet other women building businesses from home. It is free to join.

Join Our Community Free

Related Questions

← All questions