Klaviyo (KVYO) Earnings: Q3 2026 Results

The quarter ended September 30, 2026 and Klaviyo published the results on November 4, 2026. Revenue and diluted EPS are shown against Q3 2025, the same quarter a year earlier, which takes seasonal swings out of the comparison. Klaviyo reports EPS two ways: GAAP, under the accounting rules every US filer follows, and non-GAAP, which leaves out items the company considers outside its operating results. The release reconciles the two, and when they diverge, the reconciliation says why.

• Klaviyo's GAAP net income of $704 thousand in Q3 2026 and its year-ago net loss of $426 thousand both round to $0.00 per diluted share, so the release prints a dash for both.
• Klaviyo reports in thousands. Figures here are converted to millions.

Source: Klaviyo Q3 2026 results, November 4, 2026. Also in the Form 10-Q for the quarter ended September 30, 2026. Figures as reported; checked against the release on November 10, 2026.

How Klaviyo splits revenue in its own release, under its own labels, for Q3 2026 against Q3 2025. Indented lines are parts of the line above them.

• Klaviyo's United States revenue was $224 million in Q3 2026, up 21% from $186 million in Q3 2025, 58% of total revenue.
• Klaviyo's Other Americas revenue was $18.3 million in Q3 2026, up 22% from $15.0 million in Q3 2025, 5% of total revenue.
• Klaviyo's APAC revenue was $40.4 million in Q3 2026, up 27% from $31.9 million in Q3 2025, 10% of total revenue.
• Klaviyo's United Kingdom revenue was $38.4 million in Q3 2026, up 24% from $31.1 million in Q3 2025, 10% of total revenue.
• Klaviyo's Other EMEA revenue was $65.7 million in Q3 2026, up 40% from $47.0 million in Q3 2025, 17% of total revenue.

Segment lines are the figures writers cite most often, because they show where the growth in a quarter came from. Companies redraw their segments from time to time and restate the prior year to match, so a year-ago figure here can differ from the one printed a year ago. When that has happened, the note above says so.

From the earnings release

Klaviyo's outlook table gives Q4 2026 revenue of $421 million to $425 million (about 21% growth) and non-GAAP operating income of $66.5 million to $69.5 million, and full-year 2026 revenue of $1,537 million to $1,541 million and non-GAAP operating income of $233 million to $236 million.

In its Q3 2026 release, Klaviyo said:

“Raises FY26 revenue guidance to $1.537 billion to $1.541 billion, for year-over-year growth of ~25%”

“Klaviyo has not provided a reconciliation of non-GAAP operating income guidance measures to the most directly comparable GAAP measures because certain items excluded from GAAP cannot be reasonably calculated or predicted at this time.”

Source: Klaviyo Q3 2026 release, Nov 4, 2026.

This is the company's own guidance as of Nov 4, 2026, quoted as given. Walnut does not make forecasts of its own. Analyst estimates for the coming quarters are on the KVYO forecast page.

Revenue and diluted EPS for the last 5 quarters. Each date links to that quarter's release.

GAAP revenue and diluted EPS, each as first reported in that quarter's release. Q3 2026 and Q3 2025 EPS both round to $0.00.

We do not hold a confirmed date for Klaviyo's next report. Companies post the date on their investor relations site a few weeks ahead, usually with the time of the conference call.

Each quarter keeps its own page with the figures as reported, so a link to one stays pointed at the same numbers after the next report.

• Q3 2026 (this page), reported Nov 4, 2026

Klaviyo's revenue is subscription fees for its B2C CRM platform. Plans are tiered by the number of active consumer profiles a customer stores and the number of emails, text messages and WhatsApp messages sent, plus tickets and conversations in Klaviyo Service. Klaviyo does not price by seat, and the vast majority of its plans are monthly. (Klaviyo Form 10-K, 2025, Feb 10, 2026)

Klaviyo's Q3 2026 revenue was $387.2 million, up 24.6% from $310.9 million a year earlier. The 10-Q puts the increase down to new business, including new customers, geographic expansion, and expanded use of the text messaging and WhatsApp channels and of new offerings. About 60% of the increase came from customers acquired in the prior 12 months and about 40% from existing customers. (Klaviyo Form 10-Q, Q3 2026, Nov 4, 2026)

The United States brought in $224.4 million of Klaviyo's Q3 revenue, Other Americas $18.3 million, APAC $40.4 million, the United Kingdom $38.4 million and Other EMEA $65.7 million. The release puts revenue growth outside the Americas at 32%, ahead of the company as a whole. (Klaviyo Form 10-Q, Q3 2026, Nov 4, 2026; Klaviyo Q3 2026 release, Nov 4, 2026)

Klaviyo had more than 211,000 customers at September 30, 2026, against over 193,000 at the end of 2025. Larger accounts grew faster: 4,725 customers generated over $50,000 of ARR (up 33%), 390 over $250,000 (up 49%) and 105 over $500,000 (up 57%). Net revenue retention was 108%, and 22% of ARR came from customers using 3 or more products. (Klaviyo Q3 2026 release, Nov 4, 2026; Klaviyo Form 10-K, 2025, Feb 10, 2026)

Klaviyo's cost of revenue rose 31.1% to $99.8 million, faster than revenue. The 10-Q attributes $14.6 million of the increase to outbound communication sending costs paid on behalf of customers as text message and WhatsApp use grew. GAAP gross margin was 74.2%, down from 75.5%. (Klaviyo Form 10-Q, Q3 2026, Nov 4, 2026; Klaviyo Q3 2026 release, Nov 4, 2026)

Klaviyo earned GAAP net income of $0.7 million in Q3 2026, against a net loss of $0.4 million a year earlier; both round to $0.00 per diluted share. Non-GAAP diluted EPS was $0.22, up from $0.18. Non-GAAP net income of $62.1 million adds back $42.1 million of stock-based compensation, $1.2 million of employer payroll tax on stock transactions, $13.2 million of amortization of prepaid marketing (the warrants issued to Shopify) and $4.8 million of amortization of acquired intangibles. (Klaviyo Q3 2026 release, Nov 4, 2026; Klaviyo Form 10-Q, Q3 2026, Nov 4, 2026)

Klaviyo's GAAP operating loss narrowed to $4.5 million from $10.8 million, and non-GAAP operating income was $56.9 million, a 14.7% margin. Interest income fell to $6.8 million from $10.3 million. Cash and cash equivalents were $705.4 million at September 30, 2026, down from $1,064.9 million at the end of 2025. (Klaviyo Q3 2026 release, Nov 4, 2026)

Klaviyo used 286,472,066 diluted weighted average shares in Q3 2026, against 306,848,291 for the year-ago non-GAAP calculation. In the quarter it repurchased 8,764,094 Series A shares at a weighted average price of $17.08, and $484.4 million in the first nine months, including a $100.0 million accelerated repurchase. Its $500 million program was completed in October and the board authorized a new $300 million program. (Klaviyo Form 10-Q, Q3 2026, Nov 4, 2026; Klaviyo Q3 2026 release, Nov 4, 2026)

Diluted EPS divides net income by the weighted average number of shares outstanding in the quarter, plus the shares that options and other equity awards could add. Buybacks shrink that count and lift EPS for the same profit; share issuance and stock awards enlarge it.

Klaviyo publishes a numeric outlook in its release. For Q4 2026 it guided revenue of $421 million to $425 million, about 21% growth, and non-GAAP operating income of $66.5 million to $69.5 million. It raised full-year 2026 revenue guidance to $1,537 million to $1,541 million, about 25% growth, with non-GAAP operating income of $233 million to $236 million and 293 million fully diluted shares. (Klaviyo Q3 2026 release, Nov 4, 2026)

Klaviyo gives no GAAP operating income outlook. The release says stock-based compensation and related payroll tax items cannot be reasonably predicted, so it does not reconcile the non-GAAP guidance to GAAP. (Klaviyo Q3 2026 release, Nov 4, 2026)

A consensus figure is the average of the models published by the analysts who cover Klaviyo, collected by a data provider and revised up to the day of the report. A quarter that lands above it says how expectations were set as much as how the business did, and the share price on the day also reflects the guidance and the lines no consensus covers.

The consensus figures on this page are Yahoo Finance's, as pulled on the date shown. Each comes with the number of analysts behind it; the smaller that number, the more one revised estimate can move the average.

The figures below are the ones Klaviyo's own release and filings put weight on for Q3 2026, with the latest reported value for each.

What the quarter means for a holding is a separate question from what it reported. The case for and against owning KVYO is on is KVYO a buy or a sell?, what analysts expect next is on the KVYO forecast, and what the company does is on the Klaviyo (KVYO) stock page.

Every number on this page can be traced to a document Klaviyo published. Checking one takes a couple of minutes, and it is worth doing before you quote a figure anywhere.

• The results release is the document linked in the source line above. Companies publish it on their investor relations site at the moment results go out, and it carries the headline tables: revenue, operating income, net income and EPS for the quarter and the year-ago quarter.
• The same release is filed with the SEC as Exhibit 99.1 to a Form 8-K under Item 2.02, usually on the day of the report. The SEC copy does not change after the fact, which makes it the safer thing to link when you cite a number.
• The quarterly report (Form 10-Q) follows within a few weeks and carries the full financial statements, the segment note and management's discussion of what changed. The fourth quarter is covered by the annual report (Form 10-K) instead.
• Restated comparisons are flagged in the notes on this page. When a company redraws its segments or changes how it adjusts EPS, it restates the year-ago column, so the year-ago figure in a new release can differ from the one printed a year ago. This page always uses the comparison in the newer release, because that is the like-for-like one.

A walk-through of every line in a release, with what each one tells you, is in how to read an earnings report.