Quest Diagnostics (DGX) Tax Rate (2009 - 2026)
Quest Diagnostics (DGX) recorded Tax Rate of 23.80% in Q3 2026, up 0.32 percentage points from 23.48% a year earlier and up 2.44 percentage points from the prior quarter.
Powered by 
Analysis
Quest Diagnostics (DGX) Tax Rate (2009 - 2026) Analysis & Trends
On a TTM basis, Quest Diagnostics' Tax Rate came in at 22.92% as of Sep 30, 2026, down 0.47 percentage points year-over-year; for FY2025, it came in at 23.82%, up 0.59 percentage points from FY2024.
- Annual Tax Rate has increased for three straight years, though with a five-year change of -0.59 percentage points (FY2020 to FY2025).
- Across earlier years, Tax Rate came in at 23.23% in FY2024 (+1.29 pp), 21.95% in FY2023 (+0.57 pp), 21.38% in FY2022 (-1.59 pp) and 22.97% in FY2021 (-1.45 pp).
- Quarterly Tax Rate has ranged from 16.88% in Q4 2023 to 25.26% in Q2 2025 over the past five years.
- On a year-over-year basis, Tax Rate rose in six of the last eight quarters, with an average year-over-year change of +0.58 percentage points.
- Peak year-over-year performance for Tax Rate in the last five years was a gain of 5.86 percentage points in Q4 2024, against a drop of 3.90 percentage points in Q2 2026 at the low end.
- Per Business Quant, the preceding three quarters came in at 21.36% (Q2 2026), 22.16% (Q1 2026) and 24.55% (Q4 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Tax Rate (Qtr) |
|---|---|---|---|---|---|
| 1 | HCA Healthcare | 98.64 Bn | 98.22 Bn | - | 21.98% |
| 2 | Natera | 54.42 Bn | 50.10 Bn | 485.19 Mn | - |
| 3 | Labcorp Holdings | 28.77 Bn | 26.87 Bn | 1.11 Bn | 19.79% |
| 4 | Quest Diagnostics | 27.60 Bn | 25.68 Bn | 1.04 Bn | 23.80% |
| 5 | Guardant Health | 22.81 Bn | 18.87 Bn | 219.03 Mn | - |
| 6 | Tenet Healthcare | 21.39 Bn | 12.88 Bn | - | 22.80% |
| 7 | Tempus AI | 13.75 Bn | 10.78 Bn | 246.50 Mn | 3.51% |
| 8 | Encompass Health | 13.53 Bn | 14.00 Bn | - | 20.49% |
| 9 | BrightSpring Health Services | 13.09 Bn | 11.43 Bn | 492.75 Mn | 7.39% |
| 10 | Fresenius Medical Care AG | 12.64 Bn | 5.70 Bn | 1.52 Bn | 23.45% |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 23.80% |
| Jun 30, 2026 | 21.36% |
| Mar 31, 2026 | 22.16% |
| Dec 31, 2025 | 24.55% |
| Sep 30, 2025 | 23.48% |
| Jun 30, 2025 | 25.26% |
| Mar 31, 2025 | 21.38% |
| Dec 31, 2024 | 22.74% |
| Sep 30, 2024 | 21.96% |
| Jun 30, 2024 | 23.57% |
| Mar 31, 2024 | 24.81% |
| Dec 31, 2023 | 16.88% |
| Sep 30, 2023 | 22.74% |
| Jun 30, 2023 | 23.66% |
| Mar 31, 2023 | 23.47% |
| Sep 30, 2022 | 23.08% |
| Jun 30, 2022 | 23.84% |
| Mar 31, 2022 | 24.34% |
| Dec 31, 2021 | 22.71% |
| Sep 30, 2021 | 23.39% |
API Access
Quest Diagnostics Tax Rate API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=tax-rate&ticker=DGX&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "tax-rate", "ticker": "DGX", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=tax-rate&ticker=DGX&period=max&api_key=YOUR_API_KEY");
const data = await res.json();