Child Support Guidelines 2026 — Income Shares vs. Percentage of Income

Child Support Guidelines in 2026: What Every Parent Needs to Know

Child support is the most consistently misunderstood financial obligation in divorce. $750 per month sounds manageable. $750 × 12 years = $108,000 — that's a different conversation. Understanding how the number is calculated, and what it means for your long-term finances, is essential before you agree to anything.

Two Models Govern Child Support Across All 50 States

Model 1: Income Shares (41 States)

The income shares model is based on a core principle: a child should receive the same proportion of both parents' income as they would have if the family were intact.

How it works:

1. Add both parents' monthly net incomes
2. Look up the state's combined support obligation table for that income level and number of children
3. Each parent pays their proportional share of that obligation

Example (one child, income shares state):

| | Parent A | Parent B | |---|---|---| | Monthly net income | $4,000 | $2,000 | | Combined income | $6,000 | | | State table obligation (one child) | $1,100 | | | Parent A's share (67%) | $737/month | | | Parent B's share (33%) | $363/month (via in-kind care) | |

States using this model: Florida, New York, Illinois, Pennsylvania, Ohio, Virginia, Georgia, New Jersey, North Carolina, Michigan, and many more.

Model 2: Percentage of Income (9 States)

Some states use a simpler flat-percentage approach based solely on the non-custodial parent's income:

| State | 1 Child | 2 Children | 3 Children | |---|---|---|---| | Wisconsin | 17% | 25% | 29% | | Texas | 20% of net | 25% of net | 30% of net | | Alaska | 20% | 27% | 33% | | Mississippi | 14% | 20% | 22% |

This model is simpler to calculate but doesn't account for the custodial parent's income — which can produce different outcomes than the income shares model for the same families.

The Self-Support Reserve: When You Can't Pay Full Support

Every state builds in a floor. If paying full guideline support would leave the payor with less than a subsistence-level income, the order is reduced.

Federal guideline minimum: approximately $1,100–$1,500/month (state-specific)

If the payor's income minus support falls below this threshold:

• The court may set a minimum order (often $50–$100/month)
• In extreme hardship cases, a $0 order may be entered temporarily
• Courts still expect maximum effort — voluntarily reducing income is penalized

This protects the payor but doesn't eliminate the obligation.

What "Net Income" Actually Means

Child support is calculated on net income, not gross — but "net" doesn't just mean after taxes:

Allowable deductions vary by state but typically include:

• Federal and state income taxes (at actual or effective rate)
• FICA (Social Security and Medicare)
• Mandatory pension contributions
• Health insurance premiums for the children
• Existing child support orders for other children

Self-employed parents: income is calculated from Schedule C net profit plus added-back personal expenses run through the business.

Does Child Support End at 18?

It depends on your state:

| State | Termination | |---|---| | Most states | 18 or high school graduation, whichever is later | | California | 18 or high school graduation (age 19 max) | | Massachusetts | No statutory age — can extend through college | | New York | 21 years old | | Indiana | Age 19 or end of high school | | Connecticut | Age 19 or completion of high school |

College support is the most significant wild card. If you're in a state that can require college support, build that into your financial model.

The 10-Year Financial Reality

Plan with the full timeline in mind:

| Child's Age Today | Years to 18 | $700/month total | $1,000/month total | |---|---|---|---| | 4 years old | 14 years | $117,600 | $168,000 | | 8 years old | 10 years | $84,000 | $120,000 | | 12 years old | 6 years | $50,400 | $72,000 |

Add: potential increases when the child moves to a higher age bracket, and college support if your state allows it. SettleLens integrates all of this into a month-by-month cash flow projection.

What to Do Before You Agree to a Child Support Order

Five things to do first:

1. Get your actual net income right. Don't use gross salary — deductions matter.
2. Confirm your state's model. Income shares vs. percentage of income produces different results.
3. Negotiate the custody schedule carefully. More overnights often reduce the support obligation.
4. Clarify extraordinary expenses upfront. Who pays for private school? Orthodontics? Sports travel?
5. Model the full timeline. $750/month sounds different than $108,000 over 12 years.

What SettleLens Calculates

SettleLens projects child support as part of your complete post-divorce financial picture:

• Monthly child support based on your income inputs
• Annual and total obligation to age 18
• Month-by-month cash flow impact on your budget
• Net worth trajectory at year 1, 3, 5, and 10 — with support integrated
• Side-by-side comparison of different custody arrangement scenarios

This is not a legal determination — but it gives you the numbers you need before you negotiate.

Disclaimer: Child support amounts are determined by state guidelines and court orders based on individual circumstances. This article is for informational purposes only. Always consult a qualified family law attorney and verify your state's current guidelines.

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