Payment Processors · reliability comparison
Shift4 Payments vs Stax: which is more reliable? (2026)
Shift4 Payments is more reliable than Stax, scoring 57.8 vs 49.0 out of 100. Over the last 90 days Shift4 Payments reported 5 incidents and Stax reported 4, with effective uptime of 99.36% and 98.48% respectively. Shift4 Payments resolves incidents faster on average (19h 29m).
Data updated Nov 1, 2026 · How we score
| Metric | Shift4 Payments | Stax |
|---|---|---|
| Reliability score | 57.8 | 49.0 |
| Rank (payment processors) | #8 | #11 |
| Uptime (90 days) | 99.36% | 98.48% |
| Incidents (90 days) | 5 | 4 |
| Partial / major outages | 2 | 2 |
| Avg time to resolve | 19h 29m | 21h 59m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Shift4 Payments and Stax differ
- Shift4 Payments reported 25% more incidents than Stax over the last 90 days (5 vs 4).
- Shift4 Payments fixes problems faster: 19h 29m on average, against 21h 59m for Stax.
- Shift4 Payments's longest outage on record lasted 3h 24m (Aug 24, 2026); Stax's lasted 2d 2h (Oct 27, 2026).
90-day uptime
Shift4 Payments
Stax
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Shift4 Payments incidents
- Degraded performanceOct 22, 2026 · resolved in 7d 4h
Affected: Merchant Funding USA, Card Processing
- Degraded performanceOct 22, 2026 · resolved in 1h 29m
Timeouts for US processing 10/22/26
Affected: TSYS, Shift4 Dine POS - US, eCommerce, Shift4 One, Shift4 Venue Payments (US)
- InformationalSep 11, 2026 · resolved in 53m
Affected: Shift4 Dine POS - US, Shift4 Dine POS - Canada, Shift4 Dine POS - UK/EU, Shift4 Dine Mobile, Shift4 Dine Online Ordering, Shift4 Dine Kiosk
- Major outageSep 10, 2026 · resolved in 1h 1m
Eigen Processing Disruptionofficial update ↗
Affected: Eigen Gateway
- Partial outageAug 24, 2026 · resolved in 3h 24m
Partial Funding Delay - 8-24-2026official update ↗
Affected: Merchant Funding USA
Recent Stax incidents
- Partial outageOct 27, 2026 · resolved in 2d 2h
Potential Funding Delayofficial update ↗
Affected: Settlements, Fees, and Payouts
- Partial outageOct 20, 2026 · resolved in 14h 41m
Funding Delay October 20, 2026official update ↗
Affected: Settlements, Fees, and Payouts
- InformationalOct 7, 2026 · resolved in <1m
- Degraded performanceSep 28, 2026 · resolved in 49m
Affected: Scheduled Payments, Stax API