Tennessee Child Support and Parenting Days: The 92-Day and 68-Day Thresholds

Most parents know that child support depends on income. Fewer realize that in Tennessee, the exact number of parenting days in your schedule directly changes how much you pay or receive — and that crossing certain day-count thresholds can shift the obligation by hundreds of dollars per month.

How Tennessee Calculates Child Support

Tennessee uses the Income Shares model. The basic calculation works like this:

1. Combine both parents' gross monthly incomes
2. Look up the Basic Child Support Obligation (BCSO) from the state guidelines table for that combined income and the number of children
3. Each parent's share of the BCSO is proportional to their share of combined income
4. Add credits and adjustments for health insurance premiums, work-related childcare costs, and the number of parenting days

The parenting-day adjustment is where the schedule-to-support link becomes critical.

The Three Day-Count Thresholds

Tennessee's child support guidelines define three ranges for the Alternative Residential Parent's (ARP's) annual parenting days:

92+ Days: The Parenting Time Credit

When the ARP has 92 or more days per year with the child, they qualify for a day-for-day parenting time credit. This credit reduces the ARP's monthly obligation to reflect the additional expenses they incur during their parenting time — meals, transportation, utilities, activities.

The credit scales with the number of days. An ARP with 120 days gets a larger credit than one with 95 days. This creates a strong financial incentive to push parenting time above the 92-day threshold.

69–91 Days: The Standard Range

This is the standard ARP parenting time range. No adjustments apply — the ARP pays the presumptive support obligation based on income shares alone.

A typical every-other-weekend schedule with one midweek evening (no overnight) falls in this range at roughly 68–80 days per year.

68 Days or Fewer: The Support Increase

When the ARP spends 68 or fewer days per year with the child, the guidelines presume the ARP's support obligation should increase. The logic: the PRP bears a disproportionate share of daily expenses when the ARP has minimal parenting time.

Why Day-Counting Matters

The difference between 91 days and 92 days can mean hundreds of dollars per month in child support. This isn't a gradual slope — it's a threshold that either applies or doesn't.

Here's what common schedules translate to in annual days:

The jump from "every other weekend" to "every other weekend plus one midweek overnight" can push the ARP past the 92-day threshold — reducing their support obligation while giving them meaningful additional time with their child.

Equal Time (182.5 Days) and Support

Even with a perfectly equal 50/50 schedule, child support doesn't automatically drop to zero. If the parents have unequal incomes, the higher-earning parent still pays the difference — the equal-time credit reduces the obligation but doesn't eliminate it.

Child support can only reach zero when both parents have equal income AND equal parenting time AND equal shares of healthcare and childcare costs. In practice, some obligation usually remains.

Additional Expenses Beyond the BCSO

The basic child support obligation is just the starting point. The court also allocates:

• Health insurance premiums for the child — typically assigned to whichever parent has the better employer plan
• Uninsured medical and dental expenses — often split proportionally based on income
• Work-related childcare costs — daycare, after-school care, summer programs required for the parent to work

These additional expenses can create or increase a support obligation even when the parenting time credit brings the BCSO portion close to zero.

Deviations from the Guidelines

The calculated amount is the "presumptive" obligation — what the court starts with. Judges can deviate from the guidelines when circumstances warrant, including:

• Extraordinary educational expenses (private school, special needs)
• Significant travel costs for long-distance parenting (often relevant in relocation cases)
• A child's special medical needs
• A parent's extraordinary financial obligations (other support orders)

Any deviation must be justified in writing with specific findings.

Getting the Count Right

Accurate day-counting is essential because it directly affects your monthly obligation. When building your parenting plan, count every overnight carefully — including holidays, school breaks, and summer periods. A parenting day is counted when the child sleeps at that parent's home.

The Tennessee Child Custody & Parenting Plan Guide includes a day-counting worksheet that totals annual parenting days for any schedule configuration, showing exactly where you fall relative to the 92-day and 68-day thresholds.

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