Stripe's 2.9% + 30¢ vs Kelviq's 3.5% + 40¢ hides the real question of who handles sales tax. Compare raw processing, loaded SaaS stacks, and compliance.
Stripe is a payment processor charging 2.9% + 30¢ per successful domestic card charge, with subscription billing (+0.7%), tax calculation (+0.5%), international cards (+1.5%), and currency conversion (+1%) each sold separately, and tax registration, filing, and liability remaining yours. Kelviq is a merchant of record charging 3.5% + 40¢ standard, plus 1.5% for international cards and 0.5% for recurring charges, with global sales tax and VAT handled by Kelviq as the legal seller and usage-based billing and entitlement management included in the fee.
Raw processing is Stripe’s win, at $3.20 vs $3.90 on a $100 domestic sale. The gap nearly vanishes once you rebuild comparable functionality. A $49 domestic subscription costs $2.31 on Stripe with Billing and Tax enabled (4.1% + 30¢) against Kelviq’s $2.36 (4% + 40¢), a 5¢ difference carrying a completely different compliance burden. The scenarios below include the ones Stripe wins decisively, such as raw domestic volume and high-ticket sales.
| Platform | Fee | Effective rate | You keep |
|---|---|---|---|
| $3.20 | 3.20% | $96.80 | |
KelviqMoR First $5K lifetime volume | $3.30 | 3.30% | $96.70 |
The ranking counts per-transaction cost only. Monthly plan fees, payout fees, and dispute fees are listed separately on each platform page. Rates are verified against official pricing pages, and the sources list the dates.
| Kelviq | Stripe | |
|---|---|---|
| Base transaction fee | First $5K lifetime volume 2.9% + 40¢ After $5K lifetime volume 3.5% + 40¢ | 2.9% + 30¢ |
| International cards | +1.5% | +1.5% |
| Currency conversion | No surcharge | +1% |
| Subscription billing | +0.5% | +0.7% |
| PayPal | Not offered | Not offered |
| Monthly fee | None | None |
| Payout fees | Standard payouts included (T+7, or T+3 on enterprise) | Free standard payouts to US bank accounts (Instant payouts cost 1.5% (min 50¢)) |
| Dispute / chargeback fee | Not published | $15.00 |
| Sales tax / VAT handling | MoR Kelviq handles global sales tax and VAT as the legal seller | You register, file, and remit sales tax/VAT (Stripe Tax adds 0.5%) |
| Source | Official pricing, last verified 2026-07-10 | Official pricing, last verified 2026-07-10 (US rates. stripe.com geo-serves pricing by visitor location) |
| Platform | $10 sale | $50 sale | $500 sale |
|---|---|---|---|
| Kelviq | $0.69 | $1.85 | $14.90 |
| Stripe | $0.59 | $1.75 | $14.80 |
Stripe’s 2.9% + 30¢ prices card processing alone. Kelviq’s 3.5% + 40¢ prices processing plus the things a software business typically adds on top.
| Cost | Stripe | Kelviq |
|---|---|---|
| Card processing (domestic) | 2.9% + 30¢ | included in 3.5% + 40¢ |
| Subscription billing | +0.7% (Billing) | +0.5% recurring surcharge |
| Usage metering and entitlements | part of Billing | included |
| Tax calculation | +0.5% (Stripe Tax) | included |
| Tax registration, filing, remittance | your responsibility | Kelviq’s, as merchant of record |
| International cards | +1.5% | +1.5% |
| Currency conversion | +1% | no separate FX fee published |
Fully stacked, an international Stripe subscription reaches 6.6% + 30¢. Kelviq’s equivalent ceiling is 5.5% + 40¢.
A $49 domestic subscription costs $2.31 on Stripe with Billing and Tax (4.1% + 30¢) and $2.36 on Kelviq (4% + 40¢). The two formulas cross at exactly $100. Below it Stripe is cheaper by up to a dime, and above it Kelviq is, at $8.40 vs $8.50 on a $200 monthly plan. The rates are functionally identical, but the products are not. Stripe’s 4.1% still leaves sales tax registration in every nexus state and VAT filings abroad on your calendar. Kelviq’s 4% does not, because Kelviq is the seller of record.
Raw domestic one-time volume is Stripe’s territory, at $3.20 vs $3.90 on a $100 sale, a gap Stripe Tax narrows to $3.70 vs $3.90 but never closes. High tickets widen it in dollars. A $2,000 contract costs $58.30 to process on Stripe and $70.40 on Kelviq. Stripe also offers free standard payouts to US banks, while Kelviq pays out T+7 (T+3 for enterprise), and Stripe’s platform surface, from custom checkout flows to marketplace tooling, has no equivalent on any merchant-of-record platform.
A $49 fully international subscription costs $3.53 on Stripe with Billing, Tax, international cards, and FX (6.6% + 30¢), or $3.29 without Tax. Kelviq charges $3.10 (5.5% + 40¢). A $100 international one-time sale runs $5.70 on Stripe with conversion against $5.40 on Kelviq. The pattern is consistent. Every Stripe surcharge Kelviq also has, Kelviq matches (1.5% international). Every one it doesn’t (FX, Billing vs the smaller 0.5% surcharge), Kelviq undercuts.
On Stripe, crossing an economic-nexus threshold in a US state or a VAT threshold abroad creates a registration, a filing schedule, and legal liability, costs that are real but never appear on a Stripe statement. Stripe charges $15 per dispute on top. On Kelviq those obligations belong to Kelviq, priced into the 0.6-point premium over Stripe’s base rate. Whether that premium is cheap or expensive depends entirely on how many jurisdictions you’d otherwise be filing in.