The short answer: klarna has been highly reliable recently: StatusBird's independent monitoring recorded 100.0% availability and zero major incidents over the last 90 days.
Below is the data behind that answer and how Klarna compares to its peers.
What is Klarna?
Klarna is a buy now, pay later payment provider offering pay-in-4 installments, pay-later invoicing, and financing at checkout, plus its own shopping app that drives traffic to merchants. Online stores add Klarna as a payment method to lift average order value and conversion, and many display Klarna installment messaging on product pages.
Klarna uptime and outage history
| Metric (90 days, as of July 2026) | Value |
|---|---|
| Availability | 100.0% |
| Reliability grade | A+ |
| Major incidents | 0 |
| Total major-outage downtime | 0 minutes |
| Average incident duration | n/a |
| Most recent major incident | None in the last 90 days |
| Checks in window | 61,553 |
Among the 11 payment processing services StatusBird monitors, Klarna ranks number 5 for 90-day availability. See the full ranking of payment processing tools by reliability.
What happens to your store when Klarna goes down?
When Klarna is down, customers who select it at checkout hit errors or endless loading during the Klarna authorization flow, and their purchase fails unless they switch payment methods. Stores where a large share of customers pay with Klarna see an immediate drop in completed checkouts. On-site messaging widgets showing installment pricing may also fail to render, and order management calls like captures and refunds against the Klarna API error out.
Typical symptoms during a Klarna outage:
- Checkout fails or hangs specifically when Klarna is the selected payment method
- Klarna authorization popup or redirect not loading
- Klarna installment messaging missing from product pages
- Refunds and captures through Klarna failing in the order admin
- Spike in abandoned checkouts while other payment methods still work
If you are in the middle of an incident right now, see what to do when Klarna goes down for a step-by-step playbook.
Frequently asked questions
Are customers charged when their Klarna checkout fails during an outage?
Generally no. If Klarna's authorization never completed, no purchase agreement was created and there is no charge. If a customer believes they were charged for a failed order, check for an authorized Klarna order on your side; genuine mismatches should be resolved through Klarna merchant support once service recovers.
Should I disable Klarna at checkout during an outage?
If the failing option is confusing customers or causing repeated failed attempts, temporarily hiding it can save conversions by pushing shoppers to working payment methods. Just remember to re-enable it promptly, since BNPL availability itself drives conversion for many stores.
How this data is measured
StatusBird checks Klarna's status every 2 minutes, around the clock, independently of the vendor. The availability figure counts major and critical outages only; minor degradation is excluded so numbers are not skewed by vendors that report small blips near-continuously. Grades run from A+ to F. See the live numbers on the Klarna reliability page and current status on the Klarna status page, or browse all 84 service grades.
Know before your customers do
StatusBird monitors Klarna and 83 other services online stores depend on, plus your own storefront, every 2 minutes. When something goes down you get an SMS, email, or Slack alert with plain-English context, usually before the official status page catches up. Start monitoring free, no card required for the free plan.