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E-Commerce · head to head

Authorize.net vs Poshmark

Authorize.net logo

Authorize.net

E-Commerce

We help make it easy to get paid

From
$25/month
Rated
-
Full reviewWebsite
Poshmark logo

Poshmark

E-Commerce

Social resale marketplace with a flat fee on low-value sales and a percentage cut above that

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Poshmark has a free tier, so it costs nothing to try first.
  • Each has a real cost: Authorize.net all-in-One plan charges 2.9% + 30¢ per card transaction, higher than Gateway-only rate of 10¢ + batch fee; Poshmark the flat 2.95 dollar fee on sales under 15 dollars takes a large proportional bite out of cheap items, making Poshmark a poor fit for offloading low-value pieces compared with a flat percentage competitor.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Authorize.net and Poshmark actually diverge.

Attributes where Authorize.net and Poshmark differ
AttributeAuthorize.netPoshmark
Starting price$25/monthFree
Pricing modelsubscriptionFree to list; tiered seller commission by sale price
Free tierNoYes
PlatformsWebiOS, Android, Web

Identical on both: user rating (Not yet rated), category (E-Commerce).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Authorize.net

Nothing recorded that Poshmark does not also cover.

Only in Poshmark

  • Social sharing feed
  • Posh Shows live selling
  • Tiered seller commission
  • Prepaid shipping labels
  • Posh Protect buyer guarantee
  • Bundle and offer tools

What people use each for

The jobs each tool is most often brought in to do.

Authorize.net

  • E-commerce payment processingnot Poshmark
  • Recurring billing and subscription managementnot Poshmark
  • Multi-channel payment acceptancenot Poshmark

Poshmark

  • A seller with a wardrobe of mid-value branded clothing who wants social discovery features to drive salesnot Authorize.net
  • Someone willing to invest time sharing and engaging to keep listings visible in the feed algorithmnot Authorize.net
  • A buyer who enjoys live-hosted Posh Shows as a shopping format rather than static browsingnot Authorize.net
  • A seller who wants shipping cost handled through a fixed-rate prepaid label rather than arranging it themselvesnot Authorize.net

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Authorize.net

  • All-in-One plan charges 2.9% + 30¢ per card transaction, higher than Gateway-only rate of 10¢ + batch fee
  • Gateway + eCheck plan limited to U.S.-based businesses only
  • eCheck processing includes $10 minimum monthly fee on Gateway + eCheck plan
  • Chargeback fees apply: $0 for standard processing but $25 for eCheck chargebacks

Poshmark

  • The flat 2.95 dollar fee on sales under 15 dollars takes a large proportional bite out of cheap items, making Poshmark a poor fit for offloading low-value pieces compared with a flat percentage competitor.
  • The 20 percent commission on higher-value sales is above Mercari flat 10 percent rate, so a seller moving pricier items pays materially more per sale unless the social discovery features generate enough extra volume to compensate.
  • Visibility in the app depends heavily on active sharing and engagement, so a seller who lists items and does not regularly promote them tends to see far fewer sales than one who does, turning selling into ongoing work.
  • Naver ownership since 2023 means Poshmark now reports as part of a larger Korean internet conglomerate rather than as an independent company, which can affect roadmap priorities and regional focus.
  • Buyer protection through Posh Protect requires timely reporting and photo evidence, and disputes over item condition still rely on subjective judgement between buyer and seller.

Pricing, plan by plan

Authorize.net

$25/month
  • All-in-One$25/month
    • Merchant account and payment gateway
    • Transaction rate 2.9% + 30¢ per transaction
    • Multiple payment types (cards, Apple Pay, Google Pay)
  • Gateway Only$25/month
    • Payment gateway only
    • For existing merchant account holders
    • Transaction rate 10¢ per transaction + 10¢ daily batch fee
  • Gateway + eCheck$25/month
    • Payment gateway with eCheck support
    • eCheck rate 0.75% per transaction
    • Credit card rate 10¢ per transaction + 10¢ daily batch fee

Poshmark

Free
  • SellingFree
    • Flat 2.95 dollar fee on sales under 15 dollars
    • 20 percent commission on sales of 15 dollars or more
    • Shipping label cost typically passed to the buyer at a fixed rate

Which should you pick?

Choose Authorize.net if

Nothing in the data separates Authorize.net from Poshmark on the points above - pick on price and on how each one feels to use.

Authorize.net review

Choose Poshmark if

  • You need social sharing feed.
  • You want to start without paying.
  • You work on iOS, Android, Web.
  • You also want posh shows live selling.
Poshmark review

Questions people ask

Is Authorize.net or Poshmark better?
Neither clearly leads. Authorize.net starts at $25/month and Poshmark at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Authorize.net or Poshmark?
Poshmark has a free tier; the other does not. Paid plans start at $25/month for Authorize.net and Free for Poshmark.
Does Authorize.net or Poshmark run on more platforms?
Authorize.net runs on Web. Poshmark runs on iOS, Android, Web.
Can I use Poshmark for free?
Yes. Poshmark has a free tier, so you can try it without paying. Authorize.net starts at $25/month.
What is Authorize.net best used for?
Authorize.net is most often used for e-commerce payment processing, recurring billing and subscription management, multi-channel payment acceptance. Of those, e-commerce payment processing and recurring billing and subscription management are not what Poshmark is typically brought in for.
What can Authorize.net do that Poshmark cannot?
Poshmark covers Social sharing feed, Posh Shows live selling, Tiered seller commission, Prepaid shipping labels.

Answered from the vendors’ own pages

Authorize.net: How much does Authorize.net cost?

Authorize.net charges a $25/month gateway fee across all plans. Transaction rates vary: All-in-One plan charges 2.9% + 30¢ per card transaction, Gateway-only plan charges 10¢ per transaction + 10¢ daily batch fee, and Gateway + eCheck charges 0.75% for eCheck or 10¢ + 10¢ batch for credit cards.

Source
Poshmark: How much does Poshmark charge sellers?

A flat 2.95 dollar fee on sales under 15 dollars, and a 20 percent commission on sales of 15 dollars or more.

Authorize.net: Are there any setup or termination fees?

No setup fee or early termination fee applies to any Authorize.net plan. You can cancel your account without penalty once service usage stops.

Source
Poshmark: Who owns Poshmark?

Naver, the South Korean internet and search company, acquired Poshmark in 2023.

Authorize.net: What are the additional fees beyond the monthly gateway charge?

Beyond the $25/month fee, additional charges include Account Updater service at $0.25 per update, standard chargeback fees at $0 (but $25 for eCheck chargebacks), and returned item fee of $3 for eCheck payments. eCheck processing includes a $10 minimum monthly fee.

Source
Poshmark: Do I have to actively promote my listings?

Not strictly, but the app visibility algorithm favours accounts that regularly share and engage, so passive listing tends to sell more slowly.

Authorize.net: What payment types does Authorize.net accept?

Authorize.net accepts credit cards, Apple Pay, Google Pay, and eCheck payments (Gateway + eCheck plan and higher). All plans include automated recurring billing, customer information manager, digital invoicing, and advanced fraud detection.

Source
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