The Short Answer
Alliant Energy stock (LNT) is doubtful for Muslim investors. Alliant is a regulated utility holding company that provides electricity and natural gas to customers in Iowa and Wisconsin, and is investing heavily in wind and solar generation. Supplying energy — including a growing renewables mix — is permissible, so the activity screen passes. The doubtful classification comes from the balance sheet.
Current quantitative Sharia screen
Based on 10-Q figures for the period ended 2026-03-31; calculated 2026-07-15.
11,440 / 24,813
839 / 24,813
612 / 24,813
- Financial
- Fails
- Overall
- Fails
Debt/assets is 46.10%, above the 33.333% limit; liquidity/assets is 3.38% and receivables plus cash/assets is 2.47%. The debt ratio fails, while gross interest income remains unavailable.
- Financial
- Fails
- Overall
- Fails
Debt/assets is 46.10%, above the examined 33.33% limit; liquidity and receivables-plus-cash remain below their limits.
- Financial
- Fails
- Overall
- Fails
Debt/assets is 46.10%, above the examined Malaysia SAC limit; identifiable liquidity/assets is below its limit. This is not an official classification.
- Financial
- Not calculated
- Overall
- Fails
A licensed historical market-cap series is not stored; the asset-based screens fail on debt/assets.
Business-activity disclosure
Alliant Energy provides regulated electric and natural-gas service in Iowa and Wisconsin and is investing in wind and solar generation. Supplying energy and renewable infrastructure is generally permissible, while fuel mix, regulatory structures, investments and conventional financing require continuing review.
Limitation: The filing does not allocate revenue into a universal prohibited-activity numerator or separately disclose gross interest income across utility and investment activities.
Purification
Gross interest income is not separately disclosed, so no purification amount or scholar-approved percentage is inferred.
Inputs, assumptions and primary sources
- Amounts are USD millions from Alliant Energy's March 31, 2026 Form 10-Q and rounded to the nearest million.
- Debt combines $433 million of short-term borrowings, no current long-term debt and $11,007 million of noncurrent long-term debt; operating leases are excluded.
- Cash and cash equivalents are $115 million. The filing reports $724 million of long-term investments; it does not identify a separate prohibited-security numerator, so this amount is used as an identifiable investment proxy and should be reviewed by methodology.
- Accounts receivable, net is $497 million and first-quarter operating revenue is $1,184 million.
- Gross interest income and a universal prohibited-revenue numerator are not separately disclosed.
This is a reproducible financial screen, not a fatwa. A failed total-assets screen can coexist with a pass under a market-cap methodology. ZakatInvest keeps the qualitative assessment separate so numerical thresholds do not erase material context.
Alliant funds its rate base and clean-energy build-out with a large, continuously refinanced pool of interest-bearing debt, so the leverage screen is the binding concern. Confirm the ratios against the latest filings.
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)
What Alliant Energy Does
Alliant Energy Corporation (headquartered in Madison, Wisconsin) operates through two regulated utilities:
- Interstate Power and Light (IPL): Electric and gas service in Iowa.
- Wisconsin Power and Light (WPL): Electric and gas service in Wisconsin.
- Renewables: Large ongoing investment in wind and solar generation.
Delivering electricity and gas — with a growing renewables mix — is a permissible service, so the activity screen passes. The question is financial.
Why It Raises Sharia Concerns
1. High Interest-Bearing Debt (Deciding Screen)
Alliant's March 31, 2026 filing shows debt/assets of 46.10%, above the examined asset-based limits. This is the binding financial concern; market-cap denominators should be checked separately under the methodology a reader follows.
2. Interest Income and Regulatory Assets
Gross interest income is not separately disclosed in the extracted filing facts. No purification amount is inferred from interest expense or other financing disclosures.
Financial Ratios
Based on Alliant Energy's March 31, 2026 Form 10-Q (USD millions):
- Debt / Assets: 46.10% — fails the examined 33.333% asset-based limit ❌
- Liquidity / Assets: 3.38% — below the examined limits ✅
- Receivables + Cash / Assets: 2.47% — below the examined limits ✅
- Gross interest income: Not separately disclosed ⚠️
The asset-based financial result fails on leverage. Business activity, investment classification and market-cap denominators remain methodology-dependent.
What About Purification?
Because gross interest income is not separately disclosed, this page does not prescribe a purification amount. Investors should follow the purification guidance of their chosen scholar or methodology; stricter investors may prefer utilities with lower leverage or dedicated Sharia-compliant infrastructure funds.
Methodology Interpretation
The current filing-based asset screen fails on debt/assets. Business activity, security-level investment treatment, gross interest income and market-cap denominators remain incomplete. This is a ZakatInvest analysis, not an official index or agency classification.
Bottom Line
Alliant Energy (LNT) is doubtful for Muslim investors. Supplying electricity, gas and renewable infrastructure is generally permissible, but the March 31, 2026 filing shows debt/assets of 46.10%, above the examined asset-based limits. Readers should re-screen the balance sheet and follow their chosen scholarly guidance on purification and market-cap methods.
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