In short
- For a US packing side business, deduct qualifying costs you actually bear and allocate mixed-use expenses to the business portion. The simplified home-office method uses $5 per eligible square foot, capped at 300 square feet, but keeping a shop’s stock at home does not automatically qualify your storage space.
- The home-office deduction normally requires regular and exclusive qualifying business use; the simplified method does not remove those conditions.
- The inventory-storage exception has conditions for a business selling products at retail or wholesale. A sender providing fulfillment services should not assume it applies.
- A platform commission can be an operating expense for a genuine business; a deduction reduces income rather than generating an equal refund.
- AirPost is a peer-to-peer fulfilment network: online shops have their orders packed and dropped at a parcel point by verified people near their customers, who earn a fee per parcel from home. No warehouse, no minimum order volume.
Generic deduction lists often assume you buy merchandise, pay shipping, own a warehouse and use a car for every order. A home packing sender may do none of those things. Your useful list starts with the arrangement you actually have: what the shop supplies, what it pays directly, which costs you bear and which parts of your home or equipment you use for the service. That is where the deduction decision begins.
AirPost’s sender page describes packing a shop’s stock at a rate you choose. This guide assumes a genuine US trade or business and uses IRS rules checked October 14, 2026. It focuses on costs that fit that service. A not-for-profit hobby follows different expense rules, so resolve that category before applying a business deduction checklist.
Which expenses belong to you rather than the shop?
The IRS small-business tax guide requires business expenses to be ordinary and necessary. It describes ordinary as common and accepted in the field, and necessary as helpful and appropriate. Apply that test to your packing service, then ask who actually incurred the cost. Something can be useful to the order while still being a cost paid directly by the shop rather than an expense you may deduct.
| Cost or item | Sender’s question | Record to retain |
|---|---|---|
| Platform commission on your service earnings | Was this your operating fee, and is it already deducted elsewhere? | Commission statement and matching earnings record |
| Printing supplies you purchase for the service | How much relates to business rather than personal printing? | Receipt and a supported allocation |
| Packaging supplied and paid for by the shop | Did you actually incur any unreimbursed cost? | The shop arrangement; do not invent a purchase expense |
| Carrier label paid directly by the shop | Was any of this charge borne by you? | The order record distinguishing shop payment from your service fee |
| Products the shop stores with you | Do you own or purchase merchandise for resale? | Custody records, separate from your expense ledger |
| Shared phone, internet or equipment | Which part supports this business and which part is personal? | Usage evidence and the allocation method |
If you advance an expense and the shop later reimburses it, keep both entries and the underlying arrangement. Do not record a deductible cost while silently omitting a reimbursement that must be accounted for. The treatment can depend on how the payment was structured. Your preparer needs the complete transaction, rather than a receipt showing only the money initially leaving your account.
The shop’s product ownership also matters. A shelf of someone else’s inventory is not merchandise you purchased. You need a stock record for custody and order handling, but that does not create your own purchase cost or cost of goods sold. The existing fulfillment model explanation describes the split between the shop’s goods and your packing service.
How much does deducting AirPost’s commission actually save?
AirPost’s commission constant was 3% on October 14, 2026. Using $100 of gross USD earnings purely as a calculation base, the commission is $3.00 and the amount after it is $97.00. Assume the commission qualifies as an expense of your business and no other costs are included in this example. This is not a quoted US sender rate or an assumed number of orders.
In that case, you can show $100 of service earnings and $3.00 of commission expense, giving $97.00 of business profit before other items. The $3.00 deduction is not a $3.00 refund. Its tax effect depends on the taxes and limits applying to your complete return. You still spent the commission, even when the deduction reduces the resulting tax.
The Schedule C instructions include commissions and fees as a category and warn against including amounts capitalized or deducted elsewhere. Use the statement showing your actual fee, not an estimate copied from the percentage. If your bookkeeping starts from net deposits, first establish the gross-income bridge so you do not deduct a cost already removed without accounting for the corresponding gross earnings.
Can a dining table or spare room qualify as a home office?
The IRS business-use-of-home topic describes qualifying uses, including an area used exclusively and regularly as the principal place of business. A dining table that remains in personal use does not meet the ordinary exclusive-use test merely because you pack there during working hours. A separate identifiable business area may qualify without being an entire room, provided the relevant conditions are met.
Regular use also matters. An occasional task in an otherwise private room is different from an area consistently used for the business. Review the principal-place-of-business condition for the specific operation, particularly if you perform activities elsewhere. Your W-2 employer’s home-working arrangements do not automatically qualify an area for the packing business. Identify which activity uses it and whether that use satisfies the applicable rules.
Does storing inventory waive the exclusive-use rule for a sender?
Do not assume that it does. Publication 587 describes an exception for inventory or product samples with several conditions. One is that you sell products at wholesale or retail as your trade or business. A fulfillment sender packing another shop’s goods normally provides a service rather than selling those products. Having stock in your home, by itself, does not meet the full exception.
The other listed conditions include inventory kept for your selling business, the home as its only fixed location, regular storage use and a separately identifiable suitable storage area. If you also operate your own retail business, evaluate that activity and its records separately. Do not borrow its possible qualification to claim every area containing somebody else’s products as a mixed-use storage deduction for your service work.
This is a classification question to resolve before choosing a square-foot calculation. A simple sketch showing the packing area, shop stock and personal storage can help your preparer understand the facts. It does not create eligibility on its own. If the storage exception does not fit, consider whether an area qualifies under the ordinary business-use tests instead of treating the exception as the only possible route.
Is the simplified method an automatic $1,500 deduction?
No. The IRS simplified-method page gives $5 per square foot and a maximum 300 square feet. Multiplying those limits gives a nominal $1,500 maximum, but eligibility, the income limitation and applicable part-year calculations still matter. The simplified calculation changes how you measure an eligible deduction; it does not make an ineligible area qualify.
| Home-use decision | Simplified method | Regular actual-expense method |
|---|---|---|
| How the eligible space is measured | $5 per allowable square foot, up to 300 | Business-use share of qualifying actual home expenses |
| Need to meet business-use eligibility | Yes | Yes |
| Home depreciation under this method | No deduction for the home’s depreciation | Depreciation can be part of the eligible calculation |
| Amount blocked by the home-use income limitation | Cannot carry the disallowed simplified amount forward | A carryover may be available under the rules |
Keep actual measurements and qualifying-use dates even if you use the simpler method. A late-year start or a change in eligible space can affect allowable square footage. Compare methods with your preparer before filing, especially if you have a prior-year carryover from the regular method. Do not apply the largest cap by default or move a blocked simplified deduction into next year’s expense list.
What proof should you keep for shared equipment and other costs?
For a printer used for both orders and personal documents, keep the purchase record, the date it entered business use and a supportable business-use allocation. Ongoing printing supplies and a durable equipment purchase may be treated differently. Ask about the applicable expensing or depreciation method rather than writing off the whole purchase solely because you printed your first shipping label on it.
Use the same discipline for phone and internet bills. Record the service’s business use and the basis for allocating the shared cost. A bill in your name does not establish that every dollar is a business expense. For driving, retain dates, purpose and distance so qualifying business travel can be distinguished from personal driving; confirm the trip classification and current vehicle-expense method before claiming it.
The IRS recordkeeping page explains the role of receipts, invoices, paid bills and other support. Save them with a short business-purpose note while you still remember the purchase. A bank statement identifies a payment, but may not show what it bought or how you used it. Keep the evidence needed to answer both questions.
Retention is not always a universal three-year rule. The IRS retention guidance gives three years for many ordinary situations, with longer or different periods for specified circumstances. Keep property records through disposal and the applicable limitation period afterward. Before deleting an old printer invoice or home-use calculation, check whether it still supports basis, depreciation or a later transaction.
Finish the year with a cost ledger that distinguishes paid-by-shop, paid-by-you, reimbursed and personal amounts. Attach each claimed expense to evidence and its business explanation. That lets you calculate real profit and revisit your packing rate using the costs of your actual service, rather than importing a deduction list written for a different business.
Frequently asked questions
What side hustle tax deductions can a packing sender claim?
Qualifying ordinary and necessary business costs actually borne by the sender, with personal portions excluded. Commission, supplies and equipment need their own records and correct timing treatment.
Can I deduct the shipping labels the shop pays for?
A label paid directly by the shop is not automatically your expense. Keep it separate from costs you incur and account for any reimbursements correctly.
Does storing a shop’s inventory qualify for a home-office deduction?
Storage alone does not qualify. The inventory exception includes a retail-or-wholesale selling-business condition, which a fulfillment service should not assume it meets.
How much is the simplified home-office deduction?
The method uses $5 per eligible square foot up to 300 square feet. The nominal $1,500 cap remains subject to eligibility, income limits and applicable part-year calculations.
Can I deduct a printer used for both business and personal printing?
A supportable business portion may qualify under the applicable equipment rules. Retain the purchase, business-use date and allocation records instead of automatically claiming the full cost.
Sources
- IRS: Publication 334, ordinary and necessary costs and personal-use allocation
- IRS: Schedule C instructions, commissions, supplies and equipment categories
- IRS: Topic 509, qualifying business use of home; checked October 14, 2026
- IRS: Publication 587, inventory-storage conditions and eligible space
- IRS: simplified home-office method, square-foot limits and carryover rules
- IRS: supporting documents for income and business expenses
- IRS: record retention periods and property documentation
Check what a shop supplies and which costs you will bear before agreeing your packing rate, then keep those terms with your expense records.
Compare the sender work and costs