Atlantic Coast Life vs. Sentinel Security Life: which is better?
Top 5-year vs. top 10-year MYGA carrier. We compare Atlantic Coast Life (C+) and Sentinel Security Life (C+) on MYGA rates, financial strength, product range, and customer experience.
Atlantic Coast Life vs. Sentinel Security Life — side by side
Highlighted cells indicate the carrier that wins on that metric.
Atlantic Coast Life C+under review
Rated C+ (Marginal) by A.M. Best; under regulatory action
★★★★★1.5/ 5
Atlantic Coast Life, part of the A-CAP group (Advantage Capital Holdings), concentrates on MYGAs and has competed on headline rate. In September 2026 A.M. Best cut its rating to C+ (Marginal), South Carolina's insurance director petitioned a court to place it in rehabilitation, and Florida suspended its authority to write new policies in the state.
Quote requests for this carrier are paused while A.M. Best has its C+ (Marginal) rating under review and South Carolina’s rehabilitation petition is pending.
Sentinel Security Life, a Utah insurer in the A-CAP group, concentrates on MYGAs and posts some of the highest long-duration rates in our examples. A.M. Best cut its rating to C+ (Marginal) on September 22, 2026 and kept it under review with negative implications.
Quote requests for this carrier are paused while A.M. Best has its C+ (Marginal) rating under review.
These two carriers credit interest on different bases (one uses simple interest or a first-year bonus), so their posted rates are not directly comparable — compare guaranteed effective annual yields instead. Illustrative rates for comparison — not a live quote. Confirm current rates with a licensed specialist.
Side-by-side specs
Metric
Atlantic Coast Life
Sentinel Security Life
A.M. Best Rating
C+ under review
C+ under review
Our rating
1.5/5
2/5
Founded
1925
1948
Min Purchase
$5,000
$2,500
State Coverage
37 states
35 states
5-year MYGA (published)
7.45%
6.25%
Product lineup
Atlantic Coast Life offers
MYGA
Immediate (SPIA)
Sentinel Security Life offers
MYGA
Immediate (SPIA)
Pros and cons
Atlantic Coast Life pros
High headline 5-year rate (7.45% in year one, then 6.45%, simple interest)
Standard 5%/10% free-withdrawal flexibility
Operating since 1925
Simple product lineup
Atlantic Coast Life cons
C+ (Marginal) rating — A.M. Best downgraded it from B on September 22, 2026 and kept it under review with negative implications
South Carolina's insurance director petitioned on September 15, 2026 to place the company in rehabilitation; the company is contesting it
Florida suspended its certificate of authority on September 30, 2026 — it cannot write new policies in Florida
Sentinel Security Life pros
High posted long-duration (10-year) MYGA rates in our examples
Lower minimum purchase ($2,500)
Free-look period meets industry standard
Sentinel Security Life cons
C+ (Marginal) rating — A.M. Best downgraded it from B on September 22, 2026 and kept it under review with negative implications
Not available in CA, NY, OR
Limited product set beyond MYGA
Who should choose each
Atlantic Coast Life is rated C+ by A.M. Best, below the A- floor we use, so we don't suggest choosing it on rate alone.
Sentinel Security Life is rated C+ by A.M. Best, below the A- floor we use, so we don't suggest choosing it on rate alone.
Our verdict
These two carriers cannot be compared on headline rate. One of them credits interest on a simple-interest or first-year-bonus basis, which does not compound, so its posted rate overstates the effective annual yield you would actually earn over the term. Ask each carrier for the guaranteed effective annual yield in writing before comparing them. For safety-first buyers, the carrier with the higher A.M. Best rating wins (tied here). Heads-up: neither currently clears our A- preferred tier — prioritize carrier strength here, not just the headline rate. Important: A.M. Best currently has Atlantic Coast Life and Sentinel Security Life under review with negative implications, meaning the rating could be downgraded — the letter grade alone overstates the position. An A.M. Best rating is an opinion of an insurer's ability to meet its obligations, not a guarantee, and it can be changed or withdrawn at any time; annuity guarantees are not FDIC-insured. Track Retirement is not a licensed insurance agent and does not recommend either contract; this comparison is general information, not advice.
The headline MYGA rate is only meaningful if the carrier honors a multi-decade contract. Atlantic Coast Life and Sentinel Security Life differ on both axes — use the table for the numbers and the framing below for the decision.
$100,000 in a 5-year MYGA vs a 5-year CD
Illustrative, 24% tax bracket, both lines after tax: $6,635 more over 5 years, almost all of it from the rate difference (5.75% vs 4.4%) rather than from deferral. The 4.4% CD leg is an assumed APY, not a quote; the FDIC all-institution average is 1.41%. A MYGA is an insurance contract, not FDIC-insured.
Whichever carrier you lean toward, most of the gap above is the rate difference rather than the tax treatment — the deferral itself is the smaller part. Either way it only pays off if the money can stay put for the full term with a strong insurer.
Atlantic Coast Life vs. Sentinel Security Life FAQs
Which has better MYGA rates — Atlantic Coast Life or Sentinel Security Life?
They can't be compared on headline rate. One of these carriers credits interest on a simple-interest or first-year-bonus basis, which does not compound, so its posted rate overstates what you would actually earn over the term. Ask each carrier for the guaranteed effective annual yield in writing, then compare those two figures. The rates shown here are illustrative, not a live quote.
Which is safer — Atlantic Coast Life or Sentinel Security Life?
Atlantic Coast Life is rated C+ by A.M. Best; Sentinel Security Life is rated C+. A.M. Best currently has Atlantic Coast Life's rating under review with negative implications (Under review — negative (AM Best, downgraded to C+ 2026-09-22)), which means it could be downgraded. A.M. Best currently has Sentinel Security Life's rating under review with negative implications (Under review — negative (AM Best, downgraded to C+ 2026-09-22)), which means it could be downgraded. Neither currently meets our A- financial-strength floor — both are in the B range, so weigh carrier strength heavily and keep any position small. An A.M. Best rating is an opinion of an insurer's ability to meet its obligations; it is not a guarantee, and it can be changed or withdrawn at any time. Annuity guarantees are not FDIC-insured.
Which has lower fees?
For MYGAs, neither carrier charges explicit fees. Note that one of these carriers credits interest on a simple-interest or first-year-bonus basis, so its posted rate overstates the effective annual yield — the rate alone is not what you earn over the term.
Are both available in my state?
Atlantic Coast Life operates in approximately 37 states; Sentinel Security Life in approximately 35. State counts are approximate and change as filings are approved or withdrawn — some carriers are not admitted in every state, and California, New York and Oregon in particular have their own filing requirements. Confirm with the carrier or a state-licensed agent that a specific contract is available where you live before you apply.
Why you can trust Track Retirement
No carrier, advertiser, or listed agent can pay for a ranking, and none reviews our content before publication. Figures are drawn from primary sources — A.M. Best, NAIC, the IRS, SSA, and Treasury — and checked against them. Our content is researched and drafted with the help of AI tools and verified against those sources; see our editorial policy.
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ScoredStrength, rates & terms
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How we compare carriers
Track Retirement scores every annuity carrier on financial strength (A.M. Best), MYGA rate competitiveness, product breadth, surrender flexibility, and state availability. All affiliate relationships disclosed. See our full methodology.