National Life Group vs Principal Financial Group

Comprehensive side-by-side comparison of indexed universal life insurance companies

Updated 2025
Independent Analysis
Professional Ratings

National Life Group

Founded: 1848

Montpelier, Vermont

Financial Strength Ratings

AM Best A+
S&P A+
Moody's A1
Assets
$45 billion
IUL Experience
20+ years
Products
3
Avg Cap Rate
Competitive market rates

Key Strengths

Market leader with 17.4% market share
Lifetime Income Benefit Rider with 10-year waiting period
Industry-leading chronic illness rider
175+ years operating history
Mutual structure aligns with policyholder interests
Visit National Life Group Website →

Principal Financial Group

Founded: 1879

Des Moines, Iowa

Financial Strength Ratings

AM Best A+
Assets
$629 billion+ AUM
IUL Experience
5+ years
Products
2
Avg Cap Rate
9%

Key Strengths

Offers IUL Accumulation II, IUL Flex II
Enhanced caps announced January 2024
Serves 17 million
Visit Principal Financial Group Website →

Detailed Feature Comparison

Feature National Life Group Principal Financial Group
Founded 1848 1879
Headquarters Montpelier, Vermont Des Moines, Iowa
Assets Under Management $45 billion $629 billion+ AUM
Years in IUL Business 20+ years 5+ years
Number of IUL Products 3 2
Typical Cap Rate Range Not publicly disclosed - Not publicly disclosed 8% - 10%
Participation Rates Competitive market rates 110%
Minimum Premium $50,000 (FlexLife) $5,000 annual
Issue Ages 0-85 years 0-85 years
Underwriting Speed 2-4 weeks standard 2-4 weeks

National Life Group IUL Policies

FlexLife IUL

Cap Rate: Not publicly disclosed

Floor: 0%

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PeakLife IUL

Cap Rate: Competitive

Floor: 0%

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SummitLife IUL

Cap Rate: Competitive

Floor: 0%

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Principal Financial Group IUL Policies

IUL Accumulation II

Cap Rate: 8% to 10% (enhanced January 2024)

Floor: 0%

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IUL Flex II

Cap Rate: 8% to 10%

Floor: 0%

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