Do Shipping Costs I Pay Out of Pocket Count Against My Online Selling Income?
Between the packing tape, the boxes, and the postage that never quite matches what the buyer paid for shipping, a lot of online sellers reach tax season wondering whether all that out-of-pocket spending actually counts for anything.
The short answer
Generally, yes — when online selling is treated as a business or self-employment activity, shipping costs paid out of pocket are typically considered a deductible business expense, reducing the income that gets taxed. This includes postage, boxes, tape, and similar packaging materials directly tied to fulfilling sales. The key condition is that the selling activity needs to rise to the level of a business rather than a casual hobby, since the two are treated differently.
Why the business-versus-hobby distinction matters
Selling occasionally to clear out a closet is generally treated differently from selling regularly with the intent to generate profit. If the activity looks more like a hobby that’s grown large enough to resemble a business, the deduction picture shifts, because hobby-level activity generally doesn’t allow the same expense deductions that a business does. There’s no single bright line that separates the two — factors like frequency, intent to profit, and how organized the activity is all tend to matter together rather than any one factor alone.
What typically counts as a shipping-related expense
- Postage and carrier fees. The actual cost paid to ship an item to a buyer, regardless of what the buyer was charged for shipping.
- Packaging materials. Boxes, envelopes, tape, and similar materials bought specifically to prepare and protect items for shipment.
- Shipping supplies bought in bulk. Materials purchased ahead of need are generally still deductible in the period they’re used or, in some cases, when purchased, depending on the accounting method used.
- Insurance or tracking add-ons. Optional shipping protections purchased to cover a package in transit.
Why the difference between charged and paid can be confusing
A common point of confusion is the gap between what a buyer pays for shipping and what the actual postage costs. If a buyer is charged $8 for shipping but the actual postage costs $6, many sellers assume only the difference matters. In practice, the $8 charged is generally treated as part of the sale income, and the $6 in actual shipping cost is treated as a deductible expense — both sides get recorded rather than netting them together informally, since accurate recordkeeping matters if the activity is ever reviewed.
Recordkeeping that makes this easier
Keeping receipts, carrier records, and a simple running log of shipping expenses throughout the year avoids a scramble later, similar to how good mileage records matter for anyone doing occasional gig driving — the pattern of “keep it as you go” applies broadly to self-employment expenses, not just shipping. General guidance also exists on how long tax records should generally be kept, which is useful context for anyone building a habit of saving receipts and statements from a selling side activity.
Where this leaves you
Out-of-pocket shipping costs generally do count against online selling income when that selling activity is treated as a business, which is one reason a side hustle added to a regular job’s income can shift the overall tax picture more than people initially expect — both the added income and the available deductions change the math. Careful recordkeeping of both what was charged to buyers and what was actually spent on shipping is what makes the deduction usable rather than just theoretical.