May early access is here! See what's new in Brex →

What expense category is USPS?

USPS is classified asEvent expenses·Fully deductible

The United States Postal Service (USPS) is a government agency providing domestic and international mail delivery, parcel shipping, and marketing mail services on a per-transaction basis.

USPS provides a wide range of postal and shipping services for businesses, including First-Class Mail, Priority Mail, Priority Mail Express, USPS Ground Advantage, and flat-rate options. Businesses can access lower Commercial Pricing through Click-N-Ship, online postage tools, or a business account (vs. retail rates at post office counters). Services include free package pickup, free Priority Mail supplies, tracking, and USPS Marketing Mail for bulk direct mail campaigns starting at $0.227/piece. In an event expense context, USPS is used for mailing invitations, promotional materials, attendee packages, and event supplies. Pricing is fully per-transaction with no subscription required.

How businesses classify USPS

Event expensesMost common100%
100% of transactions classified under Event expenses

Tax details

Fully deductible
Capital vs. Operating
Operating expense
Section 179
Not eligible for Section 179
Documentation tips
  • Retain USPS receipts or Click-N-Ship transaction records for all business shipments and note the business purpose (e.g., 'mailed event invitations to 500 attendees').
  • USPS Marketing Mail campaigns are deductible as advertising expenses under IRC §162 — maintain the mailing list size and creative materials as supporting documentation.
  • Use Click-N-Ship or a USPS business account to access Commercial Pricing — these tools also generate digital records that simplify expense tracking.
  • Postage for mailing contracts, invoices, or legal documents to clients is a fully deductible operating expense; code these separately from shipping of physical goods.
  • If you ship products to customers as part of your revenue operations, USPS shipping costs are deductible as a cost of doing business and should be tracked separately from general postage.

Business insights

Average spend
$5–$30 per shipment for most business parcels; bulk Marketing Mail campaigns can range from $100 to $5,000+ depending on volume
Common industries
E-commerceRetailNonprofitsLegal servicesEvent planningDirect marketingPublishingHealthcare

Related expenses

What category is another expense?
Search 93+ vendors and expenses

For illustrative purposes only. Results shown are estimates and not guarantees. Based on internal metrics. Past performance does not guarantee future results, which may vary.