The most common mistake Floridians make when applying for ACA subsidies is using the wrong income number. Too high, and you leave money on the table. Too low, and you owe it back at tax time. The income the ACA uses — Modified Adjusted Gross Income (MAGI) — is not the same as your gross wages, your taxable income on your return, or your take-home pay. This guide explains exactly what's included, what's excluded, and how to handle the common income situations Florida residents face.
Modified Adjusted Gross Income is your Adjusted Gross Income (line 11 of Form 1040) plus certain items added back in — primarily tax-exempt interest, non-taxable Social Security income, and foreign earned income exclusions. For most Florida residents, MAGI equals their AGI because these add-backs don't apply.
The key difference between MAGI and "regular" income is that MAGI is calculated before itemized deductions, the standard deduction, and certain above-the-line deductions that reduce taxable income but do not reduce MAGI. For example, the self-employed health insurance deduction reduces your taxable income but does not reduce your MAGI for ACA purposes.
Comparing ACA plans in Florida
*Tax-exempt interest is added back for MAGI purposes, so municipal bond interest that doesn't appear in AGI is still counted for ACA eligibility.
Florida has one of the highest concentrations of self-employed residents in the country — independent contractors, real estate agents, gig workers, freelancers, small business owners, and sole proprietors. For all of these individuals, the income counted for ACA purposes is net self-employment income: your gross business income minus your deductible business expenses.
This is the amount you report on Schedule C and carry to your 1040. If you earned $80,000 in freelance income and had $30,000 in business expenses, your ACA income from self-employment is $50,000 — not $80,000.
What does not reduce your ACA income, even though it reduces your taxable income:
ACA subsidies are based on household income — the combined MAGI of all members of your tax household. This includes:
A common situation: a married couple where one spouse earns $45,000 and the other earns $30,000. Their household income for ACA purposes is $75,000, regardless of whether they file jointly or separately. (Married couples who file separately face additional complexities and generally cannot claim the premium tax credit — a licensed agent can advise on your specific situation.)
Children who are claimed as dependents but file their own tax returns because they have income above the filing threshold have their income counted in the household calculation. However, a child who earns money and is not claimed as a dependent is generally not part of your ACA household.
Many Florida workers — in hospitality, construction, seasonal agriculture, tourism, and the arts — have income that fluctuates significantly month to month. For these residents, estimating annual ACA income requires projecting the full calendar year based on current earnings patterns.
The ACA does not average past years. You use your current-year projection. If you are in a slow season when you enroll, project your income for the full year based on your typical annual pattern — not just the current monthly rate multiplied by 12. Using a slow month to project your income will result in an inflated subsidy and a repayment obligation.
For seasonal workers who routinely have gaps in employment, the projection method matters. If you typically earn $35,000/year but are currently between jobs and earning nothing, your ACA income is still your expected annual income, not $0. However, if you genuinely don't know your income for the year (a new business, a career change, a period of unemployment with uncertain end date), using a conservative estimate and updating it as your situation becomes clearer is the most practical approach.
Early retirees — a significant population in Florida — often have a mix of income types that require careful sorting. The ACA income picture for a 60-year-old pre-Medicare retiree might include:
| Income Type | Counts Toward MAGI? |
|---|---|
| Traditional IRA / 401(k) distributions | Yes — taxable distributions count |
| Roth IRA distributions (qualified) | No — qualified distributions are tax-free and excluded |
| Social Security benefits (partially taxable) | Only the taxable portion counts |
| Pension income (from a qualified plan) | Yes — taxable pension distributions count |
| Investment dividends and capital gains | Yes |
| Municipal bond interest (tax-exempt) | Yes — added back for MAGI |
| Inheritance received | No |
Early retirees have a unique opportunity to manage their ACA income strategically. Individuals with substantial retirement savings can choose which accounts to draw from and how much — Roth distributions don't count, while traditional IRA distributions do. Managing distributions carefully can keep MAGI in a range that maximizes ACA subsidies, particularly for the 5–7 years between early retirement and Medicare eligibility at 65.
Not sure how to estimate your income for ACA purposes? A licensed Florida agent will walk through your income sources and find your optimal subsidy amount.
Get a Free ConsultationSources: KFF Subsidy Calculator HealthCare.gov Related: Estimate Your ACA Subsidy Health Insurance for Self-Employed Floridians Florida ACA Plans