How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
What is the best merchant service for ecommerce in 2026?
Stripe is the best merchant service for most ecommerce stores in 2026, charging 2.9% plus 30 cents per online sale with no monthly fee, and it handles subscriptions, wallets and international cards in one account. Helcim is the stronger alternative above about 10,000 dollars a month in card volume, since interchange-plus pricing usually beats any flat rate there.
Key takeaways
- Stripe is the best all-round pick for most stores, at 2.9% plus 30 cents per online sale with no monthly fee.
- Helcim, Stax and Dharma usually beat flat rates above about 10,000 dollars a month in card volume.
- Square charges 3.3% plus 30 cents online on its Free plan, so Plus is the better deal for steady volume.
- PayPal Checkout costs 3.49% plus 49 cents, the highest headline rate here, but its button can lift conversion enough to justify the fee.
- PaymentCloud publishes no rate card, so get its quote in writing first.
How much do merchant services cost for ecommerce?
A merchant service costs the processing rate on every sale plus any monthly, gateway and chargeback fees, so the headline percentage alone never tells the full story. The example below uses a store doing 20,000 dollars a month across 400 orders at a 50 dollar average ticket.
On Stripe, 400 sales at 2.9% plus 30 cents cost 700 dollars for the month, with no monthly fee. On Square's Free plan, 400 sales at 3.3% plus 30 cents cost 780 dollars. On PayPal Checkout, 400 sales at 3.49% plus 49 cents cost about 894 dollars. On Authorize.net All-in-One, the same sales cost 725 dollars including the 25 dollar monthly fee.
Helcim's published average online cost is about 2.29% plus 25 cents per sale, or about 558 dollars a month with no monthly fee. Dharma charges 20 dollars a month plus interchange plus 0.20% plus 11 cents per online sale, or about 474 dollars in total with interchange assumed at 1.8% and a 10 dollar gateway fee. Stax charges 99 dollars a month plus interchange plus 15 cents per online sale, or about 519 dollars in total with interchange assumed at 1.8%. PaymentCloud publishes no rate. The gap between cheapest and dearest is more than 400 dollars a month.
Flat rate, interchange-plus or subscription: which pricing model fits your store?
Flat-rate pricing charges one percentage plus one fixed fee on every sale. Stripe, Square and PayPal use this model, and it fits new stores and low-volume stores. The weakness is that the rate never falls as volume grows.
Interchange-plus pricing passes the card networks' interchange cost through at cost plus a small markup. Helcim and Dharma use this model. The bill varies with the card mix, but the effective rate is usually lower than flat rate above about 10,000 dollars a month. The weakness is predictability.
Subscription pricing charges a monthly fee and then passes interchange through with no percentage markup, adding only a few cents per sale. Stax is the example here, at 99 dollars a month for up to 150,000 dollars of annual processing. It wins at high volume and loses at low volume, since the 99 dollar fee is due even in a slow month. Quote-only pricing, used by PaymentCloud, sets the rate per merchant after underwriting.
Merchant services compared: rates, monthly fees and chargebacks
| Tool | Online card rate | Monthly fee | Chargeback fee | Free plan |
| Stripe | 2.9% + 30 cents | 0 dollars | 15 dollars per dispute | Yes |
| Square | 3.3% + 30 cents Free, 2.9% + 30 cents Plus | 0 dollars Free, 49 dollars Plus | No separate fee listed | Yes |
| PayPal | 3.49% + 49 cents Checkout, 2.99% + 49 cents cards | 0 dollars | 20 dollars, third-party reported | Yes |
| Authorize.net | 2.9% + 30 cents All-in-One | 25 dollars | 0 dollars on card plans, third-party reported | No |
| Helcim | Interchange + 0.50% + 25 cents, about 2.29% + 25 cents average | 0 dollars | Not published | Yes |
| PaymentCloud | Quote only, reported about 2% to 3.95% + 25 cents | 5 to 25 dollars, third-party reported | Not published | No |
| Stax | Interchange + 0% + 15 cents | From 99 dollars | Not published, reported about 25 dollars | No |
| Dharma Merchant Services | Interchange + 0.20% + 11 cents | 20 dollars | 25 dollars | No |
Rates are United States online card rates from each vendor's pricing page, checked 11 Nov 2026, except where marked third-party reported or not published.
How do chargebacks work with ecommerce merchant services?
A chargeback starts when a cardholder disputes a payment with their bank, and the bank pulls the sale amount from the merchant while the case is reviewed. The merchant then submits evidence such as the order confirmation, tracking number and delivery proof, and the bank decides who keeps the money. The process is broadly the same everywhere, but the fees differ enough to matter.
Stripe charges 15 dollars when a dispute is received and 15 dollars more if the merchant responds manually, with the response fee refunded on a win. Authorize.net lists a 0 dollar chargeback fee on its card plans. PayPal charges 20 dollars per chargeback, third-party reported, and Dharma charges 25 dollars. Square lists no separate dispute fee, and Helcim, PaymentCloud and Stax do not publish one, so ask in writing before signing. Prevention matters more than the fee: clear billing descriptors, tracking on every shipment and prompt replies keep most disputes from reaching the bank.
Quick comparison
| Tool | Best for | Starting price | Free plan |
|---|
 Stripe | Online stores that want one account for cards, wallets, subscriptions and international sales | 2.9% + 30 cents per online domestic card payment, no monthly fee, checked 11 Nov 2026 | Yes, pay as you go with no setup or monthly fees |
 Square | Small stores that also sell in person and want a free online store | 3.3% + 30 cents per online sale on the Free plan, 2.9% + 30 cents on Plus at 49 dollars a month per location, third-party reported, checked Aug 2026 | Yes, Square Online and Square Point of Sale start free |
 PayPal | Stores that want the trusted PayPal button at checkout to lift conversion | 3.49% + 49 cents for PayPal Checkout, 2.99% + 49 cents for standard card payments, no monthly fee, checked 11 Nov 2026 | Yes, no monthly fee on a standard business account |
 Authorize.net | United States stores that want a dependable gateway on an existing merchant account | 25 dollars a month + 2.9% + 30 cents per transaction on the All-in-One plan, checked 11 Nov 2026 on authorize.net | No |
 Helcim | Growing stores that want interchange-plus pricing with no monthly fee | Interchange + 0.50% + 25 cents per online sale up to 50,000 dollars a month, about 2.29% + 25 cents on average, no monthly fee, checked 11 Nov 2026 | Yes, pay as you go with no monthly fee and all payment tools included |
 PaymentCloud | Stores in high-risk categories that flat-rate processors decline | Quote only, no published rate card; third-party reported quotes near 2% + 25 cents low-risk to 3.5% to 3.95% + 25 cents high-risk, plus a reported monthly fee of 5 to 25 dollars | No |
 Stax | High-volume stores that can spread a monthly subscription across many sales | From 99 dollars a month for up to 150,000 dollars a year in processing, plus interchange + 0% + 15 cents per online sale, checked 11 Nov 2026 on staxpayments.com/pricing | No |
 Dharma Merchant Services | Values-driven small businesses that want fully published interchange-plus rates | 20 dollars a month + interchange + 0.20% + 11 cents per online sale, checked 11 Nov 2026 against Dharma's published rate pages | No |
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The 8 best merchant services for ecommerce
#1Stripe
Best for: Online stores that want one account for cards, wallets, subscriptions and international sales4.2/5 on
G2 (462 reviews, checked Oct 2026)
Visit stripe.com
Starting price2.9% + 30 cents per online domestic card payment, no monthly fee, checked 11 Nov 2026
Free planYes, pay as you go with no setup or monthly fees
Stripe is the default choice for ecommerce because it covers more of the checkout than any other provider on this list. Cards, wallets, buy now pay later, subscriptions and international payments all run through one account, and hosted checkout lets a small store start without writing code. The drawback is price at scale: a store processing 100,000 dollars a month pays 2,900 dollars in percentage fees alone. Choose Stripe if you are starting out or selling internationally.
What we like- Works with Shopify, WooCommerce, BigCommerce, Magento and Wix
- Strong developer tools and fraud protection
Watch out for- The flat 2.9% rate never drops as volume grows
#2Square
Best for: Small stores that also sell in person and want a free online store4.6/5 on
G2 (1,208 reviews, checked Oct 2026)
Visit squareup.com
Starting price3.3% + 30 cents per online sale on the Free plan, 2.9% + 30 cents on Plus at 49 dollars a month per location, third-party reported, checked Aug 2026
Free planYes, Square Online and Square Point of Sale start free
Square suits the store that sells both online and at a market stall, a pop-up or a counter, because one account covers the website, the card reader and the inventory. The free online store is genuinely usable, with no monthly fee, and orders, stock and customer records stay in sync across channels. The problem for pure ecommerce is the online rate: on the Free plan, online sales cost 3.3% plus 30 cents, and Plus costs 49 dollars a month per location to cut it to 2.9% plus 30 cents. Choose Square if in-person sales matter as much as online sales, or if you want the simplest possible setup.
What we like- Free online store and point of sale in one account
Watch out for- The Free plan online rate of 3.3% plus 30 cents is the highest flat rate here
#3PayPal
Best for: Stores that want the trusted PayPal button at checkout to lift conversion4.4/5 on
G2 (2,751 reviews, checked Oct 2026)
Visit paypal.com
Starting price3.49% + 49 cents for PayPal Checkout, 2.99% + 49 cents for standard card payments, no monthly fee, checked 11 Nov 2026
Free planYes, no monthly fee on a standard business account
PayPal earns its place through buyer trust rather than price. Millions of shoppers already hold a PayPal balance, and many will complete a purchase with one click that they would abandon on an unfamiliar card form, which is why the button survives despite the cost. The same account covers card payments at 2.99% plus 49 cents, Pay Later at 4.99% plus 49 cents, invoicing and payouts. The costs are real: at 3.49% plus 49 cents, a 50 dollar order costs about 2.24 dollars, against 1.75 dollars on Stripe, and the 20 dollar chargeback fee is third-party reported. Choose PayPal as a second checkout option beside a cheaper primary processor.
What we like- The most recognised checkout button online
- No monthly fee
Watch out for- The 3.49% plus 49 cents Checkout rate is the highest headline rate in this list
#4Authorize.net
Best for: United States stores that want a dependable gateway on an existing merchant account4.2/5 on
G2 (221 reviews, checked Oct 2026)
Visit authorize.net
Starting price25 dollars a month + 2.9% + 30 cents per transaction on the All-in-One plan, checked 11 Nov 2026 on authorize.net
Free planNo
Authorize.net is the veteran gateway in this list, owned by Visa, and it has connected to most carts, point of sale systems and merchant accounts for decades. The All-in-One plan bundles the gateway and a merchant account at 25 dollars a month plus 2.9% plus 30 cents per sale, while the Gateway Only plan costs 25 dollars a month plus 10 cents per transaction and a 10 cent daily batch fee, with processing priced by your own merchant account. Pair it with a negotiated interchange-plus merchant account and the effective rate can fall to roughly 2.2% to 2.5%. Choose Authorize.net if you already hold a merchant account or run subscriptions.
What we like- Works with most shopping carts and merchant accounts
- 0 dollar chargeback fee on card plans
Watch out for- The 25 dollar monthly fee applies even in a month with no sales, which hurts very small stores
#5Helcim
Best for: Growing stores that want interchange-plus pricing with no monthly fee3.9/5 on
G2 (19 reviews, checked Oct 2026)
Visit helcim.com
Starting priceInterchange + 0.50% + 25 cents per online sale up to 50,000 dollars a month, about 2.29% + 25 cents on average, no monthly fee, checked 11 Nov 2026
Free planYes, pay as you go with no monthly fee and all payment tools included
Helcim is the best value pick in this list for a store doing steady volume, because it combines interchange-plus pricing with a zero monthly fee, a combination its rivals do not match. The markup on online sales starts at interchange plus 0.50% plus 25 cents and falls automatically as the three-month average volume rises, reaching interchange plus 0.15% plus 15 cents above 1 million dollars a month. Invoicing, recurring billing and a virtual terminal are included at no extra charge. The trade-offs are a variable monthly bill and funding that takes about two business days. Choose Helcim if your store processes more than about 10,000 dollars a month in cards.
What we like- No monthly, setup, PCI or cancellation fees
Watch out for- Interchange-plus bills vary month to month with the card mix, so budgeting takes more work
#6
PaymentCloud
Best for: Stores in high-risk categories that flat-rate processors decline
Visit paymentcloud.com
Starting priceQuote only, no published rate card; third-party reported quotes near 2% + 25 cents low-risk to 3.5% to 3.95% + 25 cents high-risk, plus a reported monthly fee of 5 to 25 dollars
Free planNo
PaymentCloud is a merchant services provider that places stores with acquiring banks and gateways, most often Authorize.net or NMI, rather than processing payments itself. That placement model is its strength: it can find a home for categories that flat-rate aggregators decline outright, including CBD, supplements, vape and dropshipping, with approval commonly in 24 hours to five days. The weakness is opacity: nothing is published, so the rate, the reserve and the contract term all depend on underwriting, and the reported high-risk range of 2.7% to 4.3% is far above standard rates. Get every term in writing before signing.
What we like- Approves categories Stripe, Square and PayPal often reject, including CBD, supplements, vape and dropshipping
#7Stax
Best for: High-volume stores that can spread a monthly subscription across many sales4.9/5 on
G2 (12 reviews, checked Oct 2026)
Visit staxpayments.com
Starting priceFrom 99 dollars a month for up to 150,000 dollars a year in processing, plus interchange + 0% + 15 cents per online sale, checked 11 Nov 2026 on staxpayments.com/pricing
Free planNo
Stax, formerly Fattmerchant, flips the usual model: pay a subscription and then pay interchange at cost with no percentage markup. The tiers run 99 dollars a month up to 150,000 dollars a year, 139 dollars a month to 250,000 dollars a year, and 199 dollars a month or more above that, with 8 cents per in-person sale and 15 cents per online sale on top of interchange. At 20,000 dollars a month in online sales the model beats Stripe by roughly 180 dollars a month. The catch is the floor: a store doing 3,000 dollars a month pays 99 dollars before a single sale is processed, which wipes out the saving. Choose Stax only if monthly card volume is comfortably above 10,000 dollars.
What we like- Zero percentage markup on interchange
- No cancellation fee
Watch out for- The 99 dollar subscription is due even in a slow month, and the chargeback fee is not published
#8Dharma Merchant Services
Best for: Values-driven small businesses that want fully published interchange-plus rates4.4/5 on
Trustpilot (140 reviews, checked Oct 2026)
Visit dharmams.com
Starting price20 dollars a month + interchange + 0.20% + 11 cents per online sale, checked 11 Nov 2026 against Dharma's published rate pages
Free planNo
Dharma has sold merchant accounts since 2007 and built its reputation on transparency: the interchange-plus markup is published by industry and card type, with worked examples showing what a 25 dollar or 100 dollar sale costs in full. Ecommerce accounts pay interchange plus 0.20% plus 11 cents per online sale, with address verification included, and merchants over 100,000 dollars a month drop to a 0.10% markup and a 15 dollar monthly fee. The ecommerce gateway integration costs 10 dollars a month plus 5 cents per transaction, third-party reported. The honest limits are fit, not conduct: Dharma declines high-risk verticals, serves United States merchants only, and charges a 49 dollar account closure fee that one of its own pages contradicts.
What we like- Every fee is published, with no PCI, batch or annual fees
Watch out for- The 20 dollar monthly fee is uneconomic below a few thousand dollars a month in volume
Frequently asked questions
What is the cheapest merchant service for ecommerce?
The cheapest option depends on monthly volume. Below about 5,000 dollars a month, Stripe at 2.9% plus 30 cents with no monthly fee is usually cheapest, because other providers charge fixed costs before the first sale. Above about 10,000 dollars a month, Helcim, Dharma and Stax usually win: Helcim averages about 2.29% plus 25 cents online with no monthly fee, and Stax charges no percentage markup at all.
Do I need a separate merchant account and payment gateway?
Not always. Stripe, Square, PayPal and Helcim combine the merchant account and gateway in one account, so a new store can start with a single signup. Authorize.net sells the gateway separately in its Gateway Only plan, which suits stores that already hold a merchant account. PaymentCloud and Dharma pair you with a gateway such as Authorize.net or NMI as part of the account. Pick the bundled route for simplicity.
How long do merchant service payouts take?
Payout timing varies by provider and by risk review. Stripe typically pays out in two business days on standard accounts, with instant payouts available for an extra fee. Square offers next-business-day funding on eligible sales, with instant transfers for a fee. Helcim funds in about two business days and offers no same-day deposit option. Dharma pays online sales in about two days. New accounts often face slower first payouts, so confirm the funding schedule in writing before launch.
What happens if a customer files a chargeback?
The cardholder's bank pulls the sale amount from your account while the case is reviewed, and you submit evidence such as the order confirmation. If the bank rules for you, the amount is returned, though some providers keep a dispute fee even on a win. Stripe charges 15 dollars per dispute plus 15 dollars if you respond manually, PayPal charges 20 dollars, third-party reported, and Dharma charges 25 dollars. Authorize.net lists a 0 dollar chargeback fee on card plans.
Can I switch merchant services without rebuilding my store?
Yes, in most cases, because the switch happens at the payment settings of your ecommerce platform rather than in the store design. Shopify, WooCommerce, BigCommerce, Magento and Wix all let you change the payment provider from the admin panel. The work is in the details: update webhooks and subscription billing, test a live order end to end, and confirm that recurring customers will not need to re-enter card details. Allow a week of overlap if you run subscriptions.
Sources we checked (8)
- https://stripe.com/pricing
- https://squareup.com
- https://www.paypal.com/us/business/paypal-business-fees
- https://www.authorize.net/sign-up/pricing.html
- https://www.helcim.com/pricing
- https://paymentcloud.com
- https://staxpayments.com/pricing
- https://www.dharmams.com
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.