Underwriting is the carrier’s process of evaluating your application and deciding (a) whether to issue a policy at all and (b) what rate class you qualify for. The difference between Preferred Plus and Standard rate classes is typically 40–60% in monthly premium for the same death benefit. Understanding what underwriters look at — and how to present yourself accurately but favorably — is the highest-leverage move available to most applicants.
This guide walks through every data source carriers actually pull, the red flags that move you down a tier, and the legitimate strategies that move you up.
The 8 data sources every carrier pulls
When you submit a life insurance application, the carrier silently runs you through these checks before they even talk to you:
1. The application questionnaire
Your direct answers: height, weight, smoking status, conditions, medications, alcohol use, hazardous activities. Be accurate. Misrepresentation is grounds for rescission during the 2-year contestability period — meaning if you lie and die in years 1-2, the carrier can refund premiums and refuse the death benefit.
2. MIB (Medical Information Bureau) check
A clearinghouse where carriers report and check applicants’ insurance application history across the industry. If you applied to Carrier A 3 years ago and disclosed something, Carrier B sees it. If you applied and were declined, Carrier B sees that too. MIB doesn’t store medical records — just coded summaries of disclosures.
3. Prescription (Rx) history
Carriers pull 7 years of pharmacy fill history through services like Milliman IntelliScript. This is the single biggest reason applicants get caught in non-disclosure: people forget to mention a medication they took for 6 months 3 years ago. If you took an SSRI, statin, or anti-hypertensive — disclose it on the application. The carrier will see the fill record regardless.
4. MVR (motor vehicle record)
Your driving record. DUIs are major flags (often a 5–10 year postponement at preferred classes). Multiple speeding tickets, reckless driving citations, license suspensions — all visible. Underwriters look back 3–5 years typically.
5. Public records
Bankruptcy, criminal history, civil judgments. Usually not disqualifying for typical applicants but visible to the carrier.
6. Credit-based scoring (some carriers)
A handful of carriers use credit-based mortality scoring as a supplementary signal. This is less common and not used by most major carriers, but worth knowing about.
7. Lab data exchanges
Recent lab results from major networks (LabCorp, Quest, Sonora Quest). If you had cholesterol or A1C drawn at your annual physical in the last 12 months, the carrier may have access. Strong recent labs help your application.
8. Paramedical exam (fully underwritten only)
A 30-minute home or office visit by a contract nurse: height, weight, blood pressure, blood draw, urine sample, sometimes EKG for older applicants. The carrier reviews labs, checks for drug use, screens for HIV/Hep C, looks at lipid panel, A1C, and liver/kidney function.
What each rate class actually requires
These vary slightly by carrier but here’s a typical major-carrier breakdown for a 35-year-old male:
Preferred Plus (Preferred Best)
- BMI: 18-29 typical
- BP: ≤ 130/85 untreated, or ≤ 135/85 if treated and well-controlled
- Cholesterol: ≤ 220 total, ratio ≤ 4.5
- A1C: ≤ 5.7
- No tobacco use in 3-5 years (carrier varies)
- No DUI in 5 years
- No 2+ moving violations in 3 years
- Family history: parents/siblings clean of cancer, heart disease, stroke before age 60-65
- Most clients fail one of these criteria; Preferred Plus is a real outlier rate
Preferred
- BMI: 18-32 typical
- BP: ≤ 140/90 (treated or untreated, well controlled)
- Cholesterol: ≤ 250 total
- A1C: ≤ 6.0
- No tobacco in 1-3 years
- No DUI in 3-5 years
- One non-major family history red flag OK
Standard Plus
- BMI: 18-35
- BP: well-controlled with treatment
- Mild conditions OK if controlled
Standard
- BMI: up to 38-40 depending on carrier
- One or two managed conditions (diabetes, hypertension) with documented control
- Some family history red flags
- This is the most common landing zone for typical applicants
Substandard / Table-rated
- Significant uncontrolled conditions
- Recent diagnosis (under 2 years out from treatment for serious conditions)
- High BMI (40+)
- Multiple cardiovascular risk factors
The 6 highest-leverage moves to improve your rate class
Without lying, these are the legitimate strategies that move you up a tier:
1. Lose weight before applying (if applicable)
If you’re sitting at BMI 32 and need to drop to 29 to qualify for Preferred, that’s a 4-month diet effort that saves you 20-30% per month for the entire life of your policy. We’ve had clients save $50K+ over a 30-year term by losing 20-25 lbs before applying.
2. Stop smoking 12+ months before applying
Smokers pay roughly 2–3× non-smoker rates. Most carriers require 12 months of complete cessation to underwrite as non-smoker. Some require 24 months. The difference is enormous and persists for the entire policy life.
3. Get your BP and lipids checked beforehand
If you don’t know what your blood pressure or cholesterol numbers are, get them checked before you apply. If they’re high, talk to your doctor about treatment for 6-12 months before applying. Documented control beats discovering a problem on the paramedical exam.
4. Time your application around recent treatments
If you had a procedure or course of treatment recently, ask your broker whether to apply now or wait. Some conditions (kidney stones, gallbladder removal, etc.) underwrite cleanly once you’re past the recovery period and have a clean follow-up. Others (cancer, cardiac events) need 5+ years of clean follow-ups to get to Preferred-class pricing.
5. Disclose everything truthfully and proactively
Counterintuitive but real: applicants who under-disclose are flagged hard when the carrier finds the discrepancy in the Rx pull or MIB check. Applicants who over-disclose (mention every minor condition, even ones the carrier wouldn’t have caught) are seen as honest reporters and often get the benefit of the doubt on borderline calls. Good brokers prep clients to make every disclosure.
6. Carrier shop, hard
Different carriers underwrite differently. Mutual of Omaha is BMI-friendly. Pacific Life is good for high-net-worth applicants. AIG/Corebridge has competitive rates for moderate health. Banner Life is a price leader for healthy applicants. A broker quoting only one carrier is leaving money on the table for almost every applicant.
Common myths
”If I have a condition, I’ll be declined.”
Almost always false for typical applicants. Most conditions — diabetes, hypertension, depression history, sleep apnea — are insurable at Standard or table-rated levels with the right carrier. Outright declines are rare and usually involve very recent serious diagnoses, current cancer treatment, or specific high-risk conditions.
”If I’m declined by one carrier, I’m declined everywhere.”
False. Declines are reported to MIB but not all carriers pull MIB the same way, and underwriting standards vary widely. We’ve placed cases that one carrier declined and another carrier issued at Standard.
”The medical exam will catch anything I forgot to disclose.”
True for some things (drugs in urine, blood pressure), but the exam doesn’t catch everything from your history — that’s what the Rx and MIB pulls are for. Failure to disclose on the application is the bigger risk than failing the exam.
”I can lie about smoking — they’ll never know.”
False. The lab analyzes for nicotine and cotinine. Smokers test positive on the urine sample.
”Telemedicine carriers don’t do real underwriting.”
Partially false. AU (accelerated underwriting) carriers don’t do a paramedical exam, but they pull all the same Rx, MIB, MVR, and lab data. They also use predictive models that flag risk factors as effectively as paramedical exams for most applicants.
What the underwriter actually does
Once your application is in, an underwriter (a credentialed insurance professional, often FALU or AALU certified) reviews:
- Your questionnaire answers
- The carrier’s electronic data pulls (MIB, Rx, MVR, lab)
- Your paramedical exam results (if applicable)
- Your APS — Attending Physician Statement — if requested for clarification
The underwriter then assigns a rate class. If they have questions, they may request additional records or a phone conversation through your broker.
This is where having a broker who can advocate for your case matters. We’ve moved cases from table 2 to Standard by writing a clarifying note explaining a specific condition’s clinical control history. Underwriters respond to documented, well-presented cases.
Timeline
For a typical fully-underwritten case:
- Day 1: Application submitted
- Day 1-3: Carrier orders MIB, Rx, MVR
- Day 3-7: Paramedical exam scheduled and completed
- Day 7-14: Lab results back to carrier
- Day 10-21: Underwriter review
- Day 21-30: APS requests if applicable, follow-up
- Day 30-45: Decision and rate class
- Day 45-60: Policy issued, delivered, premium paid, in force
Accelerated underwriting cases often close in 5-15 days because there’s no exam wait time.