Quick Answer
Klaviyo, Inc. reported R&D Expense of $291.21 million for fiscal year 2025.
Klaviyo, Inc. R&D Expense — Annual History
| Fiscal Year | R&D Expense | YoY Change |
|---|---|---|
| 2025 | $291.21M | +22.1% |
| 2024 | $238.46M | -9.0% |
| 2023 | $262.18M | +151.9% |
| 2022 | $104.08M | +58.7% |
| 2021 | $65.60M | — |
Quarterly R&D Expense
| Quarter Ending | R&D Expense | YoY | QoQ |
|---|---|---|---|
| September 30, 2025 | $72.67M | +30.3% | +0.3% |
| June 30, 2025 | $72.46M | +30.0% | +4.5% |
| March 31, 2025 | $69.35M | +23.6% | +24.4% |
| September 30, 2024 | $55.77M | -60.6% | +0.1% |
| June 30, 2024 | $55.73M | +68.6% | -0.6% |
| March 31, 2024 | $56.10M | +60.1% | -60.3% |
| September 30, 2023 | $141.46M | +370.1% | +327.9% |
| June 30, 2023 | $33.05M | — | -5.6% |
- Klaviyo, Inc. showed an increase of +22.1% in R&D Expense compared to the prior fiscal year.
- Over the 2021–2025 period, Klaviyo, Inc.’s r&d expense has grown by 343.9% (from $65.60 million to $291.21 million).
- The most recent figure is from Klaviyo, Inc.’s fiscal year 2025 report (Form 10-K), filed with the SEC on February 10, 2026.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
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