Michigan · Mortgage Interest Deduction
Mortgage Interest Deduction in Michigan (2026)
Deduct interest paid on up to $750,000 of mortgage debt for your primary or secondary home. Michigan has a flat 4.25% income tax, so a Michigan filer's combined marginal rate on the next dollar at $63,498 of income is about 16.25% (12% federal + 4.25% MI).
2026 savings example for Michigan
Planning estimate for a single filer earning $63,498 (Michigan median household income in LevyIO's state dataset) who removes $5,000 from taxable income. Federal tax uses the 2026 IRS brackets after the $16,100 standard deduction; MI tax uses the state brackets in LevyIO's dataset and assumes the state follows the federal treatment.
Estimated total savings
$813
Federal savings
$600
$5,440 → $4,840 · 12% bracket
MI state savings
$213
$2,699 → $2,486 · 4.25% marginal
Combined marginal rate
16.25%
≈ $163 saved per $1,000 deducted
Statutory maximum for this item in LevyIO's dataset: $750,000.
Federal × Michigan marginal rates (2026, single)
Gross-income ranges include the federal standard deduction. The MI column is the state marginal rate at the midpoint of each range. The last column is the tax saved per $1,000 deducted at that combined rate.
| Federal bracket | Gross income (single) | MI marginal | Combined | Per $1,000 |
|---|---|---|---|---|
| 10% | $16,100 - $28,500 | 4.25% | 14.25% | $143 |
| 12% | $28,500 - $66,500 | 4.25% | 16.25% | $163 |
| 22% | $66,500 - $121,800 | 4.25% | 26.25% | $263 |
| 24% | $121,800 - $217,875 | 4.25% | 28.25% | $283 |
| 32% | $217,875 - $272,325 | 4.25% | 36.25% | $363 |
| 35% | $272,325 - $656,700 | 4.25% | 39.25% | $393 |
| 37% | Over $656,700 | 4.25% | 41.25% | $413 |
Eligibility & forms
Homeowners with mortgage on primary or secondary residence
- Must itemize deductions
- Mortgage on qualified home
- Limited to $750K mortgage debt
Federal forms: Schedule A, Form 1098
Michigan filing notes
Check if your city imposes additional income tax. Michigan offers homestead property tax credit. Pension income may qualify for subtraction. EITC and city-tax withholding should be verified from current Treasury forms.
Common mistakes: Forgetting PMI premiums; Not tracking home equity loan interest.
Frequently asked questions
How much can the Mortgage Interest Deduction save a Michigan taxpayer in 2026?
In LevyIO's example, a single filer with $63,498 of income (the Michigan median household income in our state dataset) who removes $5,000 from taxable income saves about $600 in 2026 federal tax (12% marginal bracket) plus about $213 in Michigan tax (4.25% state marginal rate), roughly $813 combined. It is a planning estimate computed from the 2026 IRS brackets and LevyIO's MI bracket data, not a survey figure.
What is the Michigan income tax rate for 2026?
Michigan has a flat 4.25% income tax. The MI standard deduction in LevyIO's dataset is $0 single / $0 married. Flat 4.25%. Some cities add income tax. 2026 personal exemption $5,900 per taxpayer. No broad standard deduction.
Who qualifies for the Mortgage Interest Deduction in Michigan?
Homeowners with mortgage on primary or secondary residence. The federal rules are the same in every state; the requirements are: Must itemize deductions; Mortgage on qualified home; Limited to $750K mortgage debt. Michigan filers should confirm on the MI return whether the state follows the federal treatment.
Which forms do I file to claim the Mortgage Interest Deduction?
Federal: Schedule A, Form 1098. Michigan: check the Michigan Department of Treasury instructions for the matching state schedule. Common mistakes: Forgetting PMI premiums; Not tracking home equity loan interest.
Mortgage Interest Deduction in other states
Sources
Reviewed 2026-09-17. Estimates are educational planning figures computed from the IRS 2026 inflation adjustments and LevyIO's state bracket dataset; they are not tax advice.