Line 31 of IRS Schedule C reports a sole proprietor’s net profit from self-employment after expenses are subtracted from gross receipts.
Disability income carriers use the figure on Line 31, averaged across the two most recent tax years, to set the maximum monthly benefit a self-employed buyer can purchase.
A freelancer whose 2023 Line 31 was $185,000 and whose 2024 Line 31 was $74,000 walks into an underwriting review with a $129,500 average and a benefit ceiling priced against the average, not the higher of the two.
The two-year averaging method is the industry-standard underwriting baseline for sole proprietor disability insurance. Principal, Guardian, MassMutual, and The Standard each apply variations of the method to applicants who report income on Schedule C.
The carriers differ on the documentation they require and the lookback they accept. Most write the policy against the prior two complete tax years.
A few will consider the current year’s interim profit-and-loss statement if the trajectory is documented and the year-to-date trend exceeds the prior-year average.
Carriers average for a reason that is not arbitrary. Self-employed income is volatile by design, with project-based revenue, contract gaps, and seasonal swings that a W-2 paycheck does not have.
The carrier underwrites for the income the policyholder is likely to lose during a disability period, not the income the policyholder hoped to earn in the highest of the available years.
The averaging method shifts the volatility risk from the carrier to the applicant.
The applicant who reports $185,000 in Year 1 and $74,000 in Year 2 may believe the $185,000 figure represents their earning capacity. The carrier prices against the $129,500 average, which represents the likelihood-weighted estimate of what the policyholder actually earns over time.
The maximum monthly benefit the carrier will issue is a percentage of the averaged figure, typically capped at roughly 60 to 65 percent of earned income on a monthly basis.
A $129,500 annual average translates to approximately $10,800 per month of earned income. A 60-percent replacement ratio puts the maximum monthly benefit at roughly $6,500.
A 65-percent ratio puts it at roughly $7,000.
The buyer who expected to insure $185,000 of annual income at 60-percent replacement is in a different conversation than the carrier is having with the form.
Documentation requirements scale with the benefit amount the applicant requests. Below roughly $5,000 of monthly benefit, the carrier often accepts the two most recent Schedule C filings without supplemental documentation.
Above that threshold, the carrier typically requests the underlying 1099-NEC and 1099-MISC forms from the applicant’s largest clients, bank statements showing deposit volume, and in some cases a CPA letter confirming the applicant’s continuing client base.
The CPA letter is the underwriter’s way of confirming that the applicant’s income source has not contracted between the most recent tax filing and the application date.
The applicant’s business structure determines which tax form the carrier reads and which line on that form sets the earned-income figure.
| Business structure | Tax form filed | Earned-income figure for underwriting |
|---|---|---|
| Sole proprietor | Schedule C | Line 31 (net profit) |
| Single-member LLC (disregarded entity) | Schedule C | Line 31 |
| LLC or corporation with S-Corp election | Form 1120-S, K-1, W-2 | W-2 wages plus K-1 ordinary income |
| Multi-member partnership | Form 1065, K-1 | K-1 self-employment income |
The S-Corp election does not automatically increase or decrease the maximum monthly benefit. The election changes the documentation the carrier reviews, not the underlying earned income.
Owner draws and distributions do not count as earned income for disability underwriting. The IRS treats those amounts as a return of capital, not as compensation for services performed.
A sole proprietor who reports $250,000 in gross receipts on Schedule C but reports $150,000 of business expenses on the form is underwritten against the $100,000 net profit line, not the $250,000 gross figure.
The expense lines on Schedule C represent the cost of generating the gross receipts. The carrier insures the proprietor’s earned income net of those expenses, not the proprietor’s revenue.
For applicants with the income volatility that defines freelance and contract work, the two-year averaging method punishes the high year and rewards consistency.
The buyer who anticipates an unusually high year approaching can sometimes time the application to include that year in the average. The buyer who anticipates an unusually low year approaching has the opposite incentive.
The decision to apply for coverage at a specific moment in the income cycle is the decision that follows directly from the underwriting method.
A self-employed worker who has not yet purchased coverage at the time of the 60-day conversion window after W-2 separation faces the underwriting review with the full Schedule C documentation requirement.
The worker who converts within the window often qualifies for simplified underwriting that bypasses some of the Schedule C documentation work.
The income side of the picture is one decision the buyer makes at policy purchase. The retirement side is another.
The buyer who plans for the retirement contribution side of the income picture understands that the disability event halts both the monthly income and the annual contribution capacity in the same calendar quarter.
Both decisions land in the same underwriting conversation, with the same documentation on the desk.
For disability income insurance for business owners running on Schedule C income, the timing of the application and the documentation in hand determine the maximum benefit the carrier will write.
The form on the desk is the figure the carrier prices the policy against.
A clean two-year Schedule C average, a current interim P&L, and complete client documentation give the underwriter the strongest file the applicant can submit.
One strong year and one weak year produce the same averaging conversation with a different opening number. The averaging method is fixed; the applicant’s preparation determines what number the method works against.