Illinois maintenance Calculator

Temporary maintenance may be awarded during the divorce proceeding to address immediate financial needs. Post-divorce maintenance is governed by 750 ILCS 5/504, which establishes presumptive net-income formulas, duration schedules, and deviation factors for final awards. In Illinois, maintenance is designed to address financial disparity between spouses after divorce. A spouse may qualify for maintenance when the statutory analysis demonstrates a need for support and the circumstances justify an award. Courts examine income, property distribution, earning capacity, future opportunities, and the standard of living established during the marriage. Qualification is determined under the statutory factors rather than income disparity alone.

Illinois uses statutory maintenance guidelines after the court first decides that maintenance is appropriate. Maintenance is not automatic. If guideline maintenance applies, the amount is calculated from the parties' net annual incomes, and the recipient's income after maintenance may not exceed 40% of the parties' combined net income. The calculator uses net income for this planning estimate. Planning approach: Statutory guideline estimate: 33.33% of payer net annual income minus 25% of recipient net annual income, capped so the recipient's net income plus maintenance does not exceed 40% of the parties' combined net income. Illinois guideline maintenance applies only after the court finds that maintenance is appropriate based on statutory factors. The current formula uses net income because most current maintenance is not deductible to the payer and not taxable to the recipient. Older pre-2019 tax-deductible maintenance orders may follow a different gross-income modification formula. Courts may order non-guideline maintenance if guideline maintenance would be inappropriate, but must make findings.

Because Illinois uses equitable distribution rules, property division under 750 ILCS 5/504 (Illinois Marriage and Dissolution of Marriage Act) may reduce ongoing maintenance need. Guideline maintenance is based primarily on net income rather than gross income.

Marriage duration shapes both amount and length of support in Illinois. For mid-length marriages, the statutory duration multipliers can produce substantial maintenance periods. Courts balance rehabilitation goals with preservation of economic fairness. Duration guidelines: Illinois uses statutory duration multipliers based on the length of the marriage at the time the action is commenced. For marriages under 20 years, the duration is calculated by multiplying the marriage length by a factor that increases with marriage length. For marriages of 20 years or more, the court may order maintenance for a period equal to the length of the marriage or for an indefinite term.

750 ILCS 5/504 establishes the presumptive maintenance formula of 33.33% of payer net income minus 25% of recipient net income. Guideline maintenance is subject to the 40% combined-net-income limitation for the recipient.

Most Illinois divorces settle before trial. Use this estimate to prepare for mediation and compare proposed settlement amounts against IL statutory factors.

How long maintenance lasts in Illinois: Illinois uses statutory duration multipliers based on the length of the marriage at the time the action is commenced. For marriages under 20 years, the duration is calculated by multiplying the marriage length by a factor that increases with marriage length. For marriages of 20 years or more, the court may order maintenance for a period equal to the length of the marriage or for an indefinite term.

Short-term marriages: Shorter marriages generally result in shorter maintenance periods under the statutory multiplier schedule. Courts often focus on transitional support and economic adjustment. Typical range: 0-5 years.

Mid-length marriages: For mid-length marriages, the statutory duration multipliers can produce substantial maintenance periods. Courts balance rehabilitation goals with preservation of economic fairness. Typical range: 5-20 years.

Long-term marriages: Long-duration marriages may support lengthy maintenance awards and, in some circumstances, indefinite maintenance. Courts carefully examine employability, age, health, and long-term dependence. Typical range: 20 years to potentially indefinite.

Termination in Illinois: Maintenance generally terminates upon the death of either party. Unless otherwise agreed, maintenance also ends upon the recipient's remarriage and may terminate when a qualifying cohabitation relationship exists.

Illinois judges apply 750 ILCS 5/504 (Illinois Marriage and Dissolution of Marriage Act) and weigh multiple factors when setting maintenance. Illinois uses statutory maintenance guidelines that rely primarily on the parties' net incomes. For many cases, courts calculate maintenance using a formula established in 750 ILCS 5/504, while retaining authority to deviate when application of the guideline would be inappropriate. The statute also provides duration multipliers tied to the length of the marriage.

Income and earning capacity: Illinois courts evaluate income and property allocated to each spouse through the Illinois divorce process. The calculator reflects income disparity through this planning approach: Statutory guideline estimate: 33.33% of payer net annual income minus 25% of recipient net annual income, capped so the recipient's net income plus maintenance does not exceed 40% of the parties' combined net income.

Marriage duration: For mid-length marriages, the statutory duration multipliers can produce substantial maintenance periods. Courts balance rehabilitation goals with preservation of economic fairness.

Standard of living and health: Illinois courts consider the needs of each spouse and realistic future earning capacity. Illinois courts review impairment of present and future earnings resulting from domestic responsibilities.

Property and regional factors: Guideline maintenance is based primarily on net income rather than gross income. The recipient income limitation prevents maintenance plus recipient income from exceeding 40% of combined net income. Illinois publishes statutory duration multipliers tied directly to marriage length. Courts must explain deviations from the statutory guideline formula.

Modification standard: Maintenance may be modified upon a substantial change in circumstances unless the award is expressly non-modifiable.