Is MasTec Stock (MTZ) Halal? A Complete Analysis

The Short Answer

MasTec stock (MTZ) is considered halal under standard Sharia screening, subject to a debt check. Building and maintaining infrastructure is a clearly permissible activity with no haram revenue line of its own. The main items to confirm are the balance sheet and the receivables ratio.

Because MasTec grows partly through acquisitions and carries debt to fund them, its total-debt-to-market-cap ratio should be confirmed against the 33% threshold using the latest filings, with any incidental interest income checked against the 5% threshold and the corresponding portion of returns purified.

Sharia Screening Methodology

Islamic scholars use several criteria to screen stocks:

• Business activity screen: Is the company's primary business halal?
• Debt ratio: Total debt / market cap must be under 33%
• Interest income: Interest income / total revenue must be under 5%
• Haram revenue: Revenue from haram sources must be under 5%
• Receivables ratio: Total receivables / total assets must be under 49–70% (varies by board)

MasTec's Business Activity

MasTec, Inc. is an infrastructure construction company. Its activity is:

• Communications: Building and maintaining wireless and wireline/fiber networks
• Power delivery and clean energy: Transmission, distribution, and renewable-energy infrastructure
• Pipeline infrastructure: Oil, gas, and water pipeline construction and maintenance

Building and maintaining infrastructure is a clearly permissible activity with no haram revenue line of its own.

Why MTZ Is Halal

1. Permissible Core Business

Infrastructure construction is a halal engineering-and-construction business. There is no gambling, conventional banking, alcohol, or other prohibited line at the heart of the business.

2. Debt Ratio Is the Main Screen

MasTec carries acquisition-related debt, so total debt / market cap is the main screen. Confirm it sits under the 33% threshold on the latest filings before investing — the company has been working down acquisition debt.

3. Receivables and Interest to Check

As a contractor, MasTec's receivables ratio (total receivables / total assets) is worth checking against the relevant threshold, and incidental interest income on cash should be checked against the 5% threshold and the corresponding small portion of returns purified.

Financial Ratios (2025)

Based on MasTec's most recent financial statements:

• Total Debt / Market Cap: The main screen — confirm under 33% ⚠️
• Receivables / Assets: Confirm against the 49–70% threshold ⚠️
• Haram Revenue: None material — infrastructure construction ✅
• Business Activity: Permissible — engineering and construction ✅

Verdict from Major Screening Agencies

MasTec stock is generally screened as halal, subject to the debt check, by:

• Zoya App — Compliant when the debt ratio passes ⚠️
• Musaffa — Verdict depends on leverage in the latest filings ⚠️
• Most major Sharia advisory boards — Permissible activity, screen the debt ratio ⚠️

Bottom Line

MasTec (MTZ) is halal for Muslim investors when the debt screen passes. The infrastructure-construction business is permissible; confirm total debt / market cap under 33% on the latest filings before each purchase, check the receivables ratio, and purify the minor portion of returns attributable to interest income. Note that MTZ is cyclical with infrastructure and capital-spending budgets.

For Muslim investors seeking infrastructure exposure, compare MTZ with peers like Dycom (DY), Construction Partners (ROAD), and Arcosa (ACA).