---
schema_version: "secwatch.filing_event.v1"
accession: "0001283699-26-000062"
form_type: "8-K"
ticker: "TMUS"
cik: "0001283699"
company_name: "T-Mobile US, Inc."
filed_at: "2026-04-28T23:59:59+00:00"
generated_at: "2026-05-15T02:45:41.037403+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# T-Mobile Q1 2026: Postpaid net adds +6% YoY, service revenue +11%, raises guidance

## Summary
- Postpaid net account additions of 217k (+6% YoY); ARPA $151.93 (+3.9% YoY).
- Service revenues $18.8B (+11% YoY); postpaid service revenues $15.6B (+15% YoY) - industry-leading.
- Core Adjusted EBITDA $9.2B (+12% YoY); Adjusted Free Cash Flow $4.6B (+5% YoY).
- Net income $2.5B (-15% YoY) includes $476M UScellular merger costs; EPS $2.27 (-12% YoY).
- Raised full-year guidance; returned $6.0B to stockholders in Q1.

## SEC filing metadata
- accession: 0001283699-26-000062
- form_type: 8-K
- ticker: TMUS
- cik: 0001283699
- company_name: T-Mobile US, Inc.
- filed_at: 2026-04-28T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1283699/000128369926000062/0001283699-26-000062-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1283699/000128369926000062/tmus-20260428.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001283699-26-000062
- JSON: https://secwatch.observer/filing/0001283699-26-000062.json
- Plain text: https://secwatch.observer/filing/0001283699-26-000062.txt

## Key facts
- Earnings Releases
  T-Mobile US, Inc. reported the quarter ended March 31, 2026 results: revenue $18.8 billion, net income $2.5 billion, EPS $2.27. Guidance raised.
  - Period: the quarter ended March 31, 2026
  - Revenue: $18.8 billion
  - Net income: $2.5 billion
  - EPS: $2.27
  - Guidance: raised
  - Result: reported results
  source text: Average Revenue Per Account (“ARPA”) of $151.93 grew 3.9% year-over-year Translating Strong Account Growth into Durable and Profitable Financial Growth (1) • Service revenues of $18.8 billion grew 11% year-over-year, industry-leading growth • Postpaid service revenues of $15.6 billion grew 15% year-over-year, industry-leading growth • Net income of $2.5 billion
  evidence_url: https://www.sec.gov/Archives/edgar/data/1283699/000128369926000062/0001283699-26-000062-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.