EPOS Now vs Legacy POS Fees in 2026: The True Cost of Cloud Systems

Moving from legacy point of sale systems to cloud platforms like EPOS Now shifts costs away from opaque processor contracts and expensive terminal maintenance. Legacy systems bundle processor markups with lease agreements. Modern cloud alternatives use either flat-rate pricing or transparent interchange-plus margins.

Flat-rate cloud providers assess a fixed fee regardless of the underlying card type. Square charges an in-person rate of 2.6% + $0.15 on its Free plan. Lightspeed sets an in-person rate of 2.6% + $0.10 across all plans. Shopify charges 2.6% + $0.10 on its Basic plan, 2.5% + $0.10 on Grow, and 2.4% + $0.10 on Advanced. Predictable billing comes at a cost: these providers absorb low wholesale rates and pocket the spread.

Transparent interchange-plus models pass wholesale card network costs directly to you and charge a separate margin, achieving parity between wholesale network costs and merchant fees. Helcim charges an interchange-plus margin of 0.4% + $0.08 for card-present transactions and 0.5% + $0.25 for keyed and online sales over Visa and Mastercard base rates. You choose between flat convenience and wholesale cost transparency.

At a monthly credit card volume of $10,000 with a $50 average sale across 200 transactions, card-present processing with Helcim costs $214/month or $2,568/year at a 2.14% all-in effective rate. Square Free card-present costs $290/month or $3,480/year at a 2.9% all-in effective rate. Across all tracked card-present and online processing models at this $10,000 monthly volume, the spread between the cheapest and most expensive options is $1,152/year. Lightspeed card-present costs $280/month or $3,360/year at a 2.8% effective rate. Shopify Advanced card-present runs $260/month or $3,120/year at a 2.6% effective rate, and Shopify Advanced online hits $310/month or $3,720/year at a 3.1% effective rate.

Increase card volume to $25,000 per month with a $50 average sale across 500 transactions, and the financial impact scales. Helcim Interchange Plus card-present costs $535/month or $6,420/year at a 2.14% effective rate. Helcim online costs $645/month or $7,740/year at a 2.58% effective rate. Compare Helcim versus Shopify, and Shopify Advanced card-present costs $650/month or $7,800/year at a 2.6% effective rate. Lightspeed card-present costs $700/month or $8,400/year at a 2.8% effective rate, Square Free card-present costs $725/month or $8,700/year at a 2.9% effective rate, and Shopify Advanced online demands $775/month or $9,300/year at a 3.1% effective rate.

At $25,000 in monthly credit sales, the spread between the cheapest and most expensive processing option reaches $2,880/year. Long-term credit card processing fees affect a merchant's balance sheet far more than initial hardware terminal costs when replacing a legacy POS platform. Helcim Interchange Plus card-present costs less than Shopify Advanced card-present at every volume with this transaction mix, running a 2.14% marginal all-in rate against the 2.6% rate on Shopify Advanced card-present, without extra fixed monthly processing fees.

Software as a service subscriptions replace legacy software licenses and annual maintenance contracts. Modern cloud POS providers bill recurring software tiers based on feature access and store locations. This shifts terminal costs into predictable monthly overhead.

Comparing Lightspeed versus Square software tiers reveals distinct approaches. Lightspeed Retail X-Series charges $109/mo for Basic, $179/mo for Core, and $339/mo for Plus. Annual billing reduces these to $89/mo, $149/mo, and $289/mo, alongside a $59/mo fee per additional register. Square POS requires $0/mo for its Free tier, $49/mo for Plus, and $149/mo for Premium per location.

Shopify POS requires an $89/mo POS Pro add-on subscription per location, or $79/mo when billed annually, on top of its core platform plans. Modern cloud platforms trade high upfront legacy licensing fees for ongoing monthly software subscriptions.

Visa and Mastercard wholesale interchange rates establish the non-negotiable baseline cost for all card transactions across legacy and cloud POS architectures. Card processors pay these exact interchange fees to card-issuing banks and use them as the foundation for merchant pricing.

In the United States, network tables show Visa Credit CPS Retail carries a wholesale interchange rate of 1.51% + $0.10. Mastercard Consumer Credit Merit III Core carries a wholesale rate of 1.65% + $0.10. For regulated debit cards, Visa Debit CPS Regulated and Mastercard Debit Regulated both carry a wholesale interchange rate of 0.05% + $0.22.

Flat-rate cloud processors set standard fees like 2.6% + $0.15 to build a substantial markup over these wholesale interchange rates. Interchange-plus providers pass the 1.51% + $0.10 or 1.65% + $0.10 base costs directly to the merchant. They add a transparent margin, such as Helcim's 0.4% + $0.08 card-present fee.

Cloud point of sale infrastructure introduces operational risks and policy changes absent in legacy offline terminals. Merchants adopting cloud terminals depend entirely on remote server availability and platform stability to process store transactions.

System reliability events directly interrupt store operations. On November 4, 2026, Square resolved a service disruption that affected payment processing and caused order delays. These disruptions force merchants to manage unexpected checkout stalls that offline legacy systems avoided.

Cloud platforms regularly push functional pricing adjustments. On November 2, 2026, Square updated its Point of Sale to support automatic card surcharges when customers pay invoice balances using a card. Cloud vendors actively modify checkout payment terms remotely.