See exactly how much of your paycheck can be withheld for child support in California. Updated for 2026 rates.
See common scenarios below. Child support withholding under a California IWO follows CCPA tiers (50-55-60-65%) applied directly to disposable earnings. Enter your own numbers above for a personalized estimate.
You have no other spouse or child to support. You are current on child support payments (no arrears, or less than 12 weeks behind). California's DCSS default cap is 50% NDI; a court may authorize up to the 60% CCPA ceiling.
| Calculation Step | Monthly Income: $4,000 | Monthly Income: $5,500 | Monthly Income: $7,000 |
|---|---|---|---|
| Gross Monthly Income | $4,000.00 | $5,500.00 | $7,000.00 |
| Minus: Mandatory Deductions (est. 20%) | -$800.00 | -$1,100.00 | -$1,400.00 |
| = Disposable Earnings | $3,200.00 | $4,400.00 | $5,600.00 |
| CCPA Tier (60% — applied to disposable earnings) | 60% | 60% | 60% |
| CCPA Maximum Withholding | $1,920.00 | $2,640.00 | $3,360.00 |
| CA DCSS Default Cap (50% NDI) | $1,600.00 | $2,200.00 | $2,800.00 |
| Typical Monthly Withholding* | Up to $1,600.00 | Up to $2,200.00 | Up to $2,800.00 |
*Actual withholding is the amount specified in the IWO, not to exceed the applicable CCPA maximum (60% here) or the CA DCSS default cap (50% NDI), whichever is lower unless the court order specifies more. Mandatory deductions estimated at 20% for illustration.
You support another spouse or child (a second family). You are current on payments (no arrears, or less than 12 weeks behind). The CCPA ceiling drops to 50%, which aligns with California's DCSS default cap.
| Calculation Step | Monthly Income: $4,000 | Monthly Income: $5,500 | Monthly Income: $7,000 |
|---|---|---|---|
| Gross Monthly Income | $4,000.00 | $5,500.00 | $7,000.00 |
| Minus: Mandatory Deductions (est. 20%) | -$800.00 | -$1,100.00 | -$1,400.00 |
| = Disposable Earnings | $3,200.00 | $4,400.00 | $5,600.00 |
| CCPA Tier (50% — second family, no arrears) | 50% | 50% | 50% |
| Maximum Monthly Withholding | $1,600.00 | $2,200.00 | $2,800.00 |
Mandatory deductions estimated at 20% for illustration. Your actual deductions may vary.
You support another spouse or child AND are 12 or more weeks behind on child support payments. Under federal CCPA §1673(b), this triggers the 55% tier — higher than the standard 50%, but lower than the 65% tier that applies to those without a second family in arrears.
| Calculation Step | Monthly Income: $4,000 | Monthly Income: $5,500 | Monthly Income: $7,000 |
|---|---|---|---|
| Gross Monthly Income | $4,000.00 | $5,500.00 | $7,000.00 |
| Minus: Mandatory Deductions (est. 20%) | -$800.00 | -$1,100.00 | -$1,400.00 |
| = Disposable Earnings | $3,200.00 | $4,400.00 | $5,600.00 |
| CCPA Tier (55% — second family + 12+ wks arrears) | 55% | 55% | 55% |
| Maximum Monthly Withholding | $1,760.00 | $2,420.00 | $3,080.00 |
Mandatory deductions estimated at 20% for illustration. Note: The 55% tier only applies when BOTH conditions are met — supporting a second family AND 12+ weeks in arrears. Without a second family, the 65% tier applies instead.
You do not support another spouse or child, and you are 12 or more weeks behind on child support payments. This is the highest CCPA garnishment tier under federal law.
| Calculation Step | Monthly Income: $4,000 | Monthly Income: $5,500 | Monthly Income: $7,000 |
|---|---|---|---|
| Gross Monthly Income | $4,000.00 | $5,500.00 | $7,000.00 |
| Minus: Mandatory Deductions (est. 20%) | -$800.00 | -$1,100.00 | -$1,400.00 |
| = Disposable Earnings | $3,200.00 | $4,400.00 | $5,600.00 |
| CCPA Tier (65%) | 65% | 65% | 65% |
| Maximum Monthly Withholding | $2,080.00 | $3,640.00 | $3,640.00 |
Mandatory deductions estimated at 20% for illustration. The 65% tier is the federal CCPA maximum under 15 U.S.C. §1673(b). A court order may specify the actual withholding amount up to this ceiling.
These are examples using estimated deductions. Use the calculator above to enter your exact income and see your personalized estimate.
Child support wage garnishment in California is a court-ordered deduction from your paycheck to pay child support. It is legally called an Income Withholding Order (IWO) and uses Form FL-195. The Department of Child Support Services (DCSS) or the court sends this order directly to your employer, who then deducts the specified amount from your wages and sends it to the State Disbursement Unit.
Wage garnishment for child support differs from consumer debt garnishment in two critical ways. First, the limits are higher: child support IWOs can withhold up to 50-65% of disposable earnings under CCPA §1673(b), compared to a maximum of the lesser of 20% of disposable earnings or 40% of earnings exceeding 48 times the state minimum wage per week for ordinary creditor garnishments under CCP §706.050. For a complete guide to consumer debt garnishment limits, exemptions, and the Claim of Exemption process, see our California Wage Garnishment Laws guide. Second, California's DCSS limits default IWO withholding to 50% of net disposable income (NDI), though a court order may authorize up to the applicable CCPA maximum.
The garnishment continues until the support order is modified, the arrears are paid off, or the child reaches the age of majority (18, or 19 if still in high school full-time).
In California, child support wage withholding is governed by the federal CCPA (15 U.S.C. §1673(b)), which sets four tiers: 50%, 55%, 60%, or 65% of your disposable earnings. Many sources incorrectly state there are only three tiers, omitting the 55% bracket that applies when a parent supports a second family and is also 12+ weeks in arrears.
| Tier | Limit | When It Applies | Example (Disposable: $4,000/mo) |
|---|---|---|---|
| Tier 1 | 50% | You support another spouse or child — AND — you are current (or less than 12 weeks behind) | $2,000 maximum |
| Tier 2 | 55% | You support another spouse or child — AND — you are 12+ weeks behind in arrears | $2,200 maximum |
| Tier 3 | 60% | You have no other dependents — AND — you are current (or less than 12 weeks behind) | $2,400 maximum |
| Tier 4 | 65% | You have no other dependents — AND — you are 12+ weeks behind in arrears | $2,600 maximum |
⚠️ California's Own DCSS Limit: 50% of Net Disposable Income
The CCPA sets federal ceilings. California's DCSS imposes an additional default: withholding under a standard California IWO is limited to 50% of the employee's net disposable income (NDI) per pay period, per Family Code §5235 and DCSS guidance. A court order may authorize withholding above 50% (up to the applicable CCPA maximum), but employers operating under a standard DCSS notice should not exceed 50% NDI unless the IWO specifically states otherwise.
These percentages apply to your disposable earnings — the amount left after mandatory deductions like taxes, FICA, Medicare, and required retirement contributions. Voluntary deductions (401(k), health insurance, etc.) are not subtracted for this purpose.
Important: Your actual withholding is the amount specified in the IWO, which cannot exceed the lesser of:
These are maximum limits — your actual IWO amount may be less if your child support obligation is smaller than the maximum.
Here is how to identify your CCPA tier:
Calculating your child support wage withholding in California requires three steps: determine your disposable earnings, identify your CCPA tier, and apply the tier to your disposable earnings. Unlike ordinary consumer debt garnishments, child support IWOs do not use the 48x minimum wage deduction formula — that formula (CCP §706.050) applies only to creditor judgment debt.
Disposable earnings are your gross pay minus mandatory deductions. Mandatory deductions include federal and state income tax, FICA (Social Security and Medicare), and mandatory retirement contributions like CALPERS. Voluntary deductions — like 401(k) contributions, health insurance, and voluntary union dues — are not subtracted. Use our California Disposable Earnings Calculator to compute your exact disposable earnings amount.
Formula: Disposable Earnings = Gross Pay – Mandatory Deductions
Example:
Federal CCPA §1673(b) sets the maximum percentage of disposable earnings that can be withheld. Your tier depends on two factors: whether you support another spouse or child, and whether you are 12+ weeks behind in arrears.
| Second Family? | 12+ Weeks Arrears? | CCPA Tier | Max % of Disposable Earnings |
|---|---|---|---|
| Yes | No | Tier 1 | 50% |
| Yes | Yes | Tier 2 | 55% |
| No | No | Tier 3 | 60% |
| No | Yes | Tier 4 | 65% |
Example (continued) — Tier 3 (60%): no second family, not in arrears:
Your actual withholding is the amount in your IWO, capped at the lower of the CCPA tier maximum or California's 50% NDI default (unless the court order specifies a higher amount).
Example (continued):
⚠️ Common Misconception: The 48x Rule Does Not Apply to Child Support IWOs
California's CCP §706.050 (the "48x minimum wage" formula — 20% of disposable earnings or 40% of the amount exceeding 48 times the state minimum wage per week, whichever is less) applies only to ordinary creditor/judgment debt garnishments. Child support Income Withholding Orders are governed by Family Code §5230 et seq. and CCPA §1673(b), which use the 50-55-60-65% tier system applied directly to disposable earnings. No additional "48x deduction step" exists in child support withholding calculations.
| Gross Monthly Pay | $5,000.00 |
| Minus: Mandatory Deductions | -$1,332.50 |
| = Disposable Earnings | $3,667.50 |
| CCPA Tier (60% — Tier 3) | × 0.60 |
| = CCPA Maximum Withholding | $2,200.50 |
| CA DCSS Default Cap (50% NDI) | $1,833.75 |
| IWO Amount (court-ordered) | $1,200.00 |
| Final Monthly Withholding | $1,200.00 |
| Remaining Take-Home Pay | $2,467.50 |
California uses a specific formula to calculate child support: CS = K[HN – (H%)(TN)], defined in Family Code §4055. This formula determines your base child support obligation, which is then enforced through the IWO process described above.
Family Code §4055 Formula:
CS = K[HN – (H%)(TN)]
Here is what each variable means:
| Variable | Meaning | How It Works |
|---|---|---|
| CS | Child Support Amount | The final monthly support obligation |
| K | Income Allocation Factor | A value derived from combined net income of both parents and the custody timeshare — not a simple fixed table by number of children (see note below) |
| HN | High Earner's Net Disposable Income | The higher earner's monthly income after mandatory deductions |
| H% | High Earner's Timeshare Percentage | Percentage of time the child spends with the higher earner |
| TN | Total Net Disposable Income of Both Parents | HN + the other parent's net disposable income |
The K-factor is not a fixed number by the count of children. Under Family Code §4055, K is calculated using both parents' combined net disposable income (TN) and the high earner's timeshare (H%). The statutory formula is:
When H% ≤ 50%: K = (1 + H%) × (base fraction based on TN)
When H% > 50%: K = (2 − H%) × (base fraction based on TN)
The "base fraction" itself depends on the total net income (TN) according to income bands updated by SB 343.
⚠️ Calculator Limitation — Simplified K-Factor
The calculator on this page uses approximate K-factor values (roughly 0.20 for 1 child, 0.24 for 2, 0.28 for 3, 0.32 for 4+) as rough starting points for illustration only. The real K-factor requires both parents' complete net income figures and must be computed using Judicial Council–certified software (such as Family Law Software or XSpouse). Any support obligation estimate from this calculator is an approximation only and should not be used in legal proceedings.
Senate Bill 343, effective September 1, 2024, made the most significant updates to California's child support guidelines in over 30 years. The core formula structure (CS = K[HN – (H%)(TN)]) was not changed, but SB 343 updated the income bands used to calculate the K-factor (which had not been revised since 1992), revised the low-income adjustment threshold, changed how mandatory add-on expenses (childcare, medical) are allocated between parents, and expanded the income sources counted as gross income. The formula has always used net disposable income — SB 343 did not change that foundational approach, but it did update the calculations within it significantly.
Important: The child support formula calculates your obligation. The CCPA tier system (50-55-60-65%) and California's 50% NDI cap determine how much of that obligation can be collected through wage withholding in any given pay period. Courts require certified Judicial Council-approved software for any official support calculation.
Disposable income for garnishment purposes is your gross pay minus mandatory deductions required by law. This definition is used for both consumer debt garnishments and child support IWOs, though the withholding limits that follow differ significantly between the two.
| Type of Deduction | Subtracted from Gross Pay? | Examples |
|---|---|---|
| Mandatory Deductions | ✅ YES | Federal income tax, California state tax, FICA (Social Security 6.2%), Medicare (1.45%), mandatory retirement contributions (CALPERS), mandatory union dues |
| Voluntary Deductions | ❌ NO | 401(k) contributions, health insurance premiums, voluntary union dues, life insurance, charitable contributions, savings plans |
⚠️ Net Take-Home Pay ≠ Disposable Earnings: Your employer must not subtract voluntary deductions when calculating disposable earnings for garnishment purposes. If your employer is using your net take-home pay (after 401(k) and health insurance) instead of disposable earnings (after only mandatory deductions), they may be under-withholding — which could result in arrears accumulating on your account.
Jane's Monthly Paycheck:
Jane's IWO withholding limit is based on $4,034.25 (disposable earnings), not $5,500 (gross) or $3,634.25 (net take-home). The CCPA percentage applies to $4,034.25.
Profile: One child, 50/50 custody, no other dependents, current on payments (no arrears). CA DCSS default cap is 50% NDI; court may authorize up to 60%.
| Gross Monthly Income | $6,000.00 |
| Minus: Mandatory Deductions (est. 20%) | -$1,200.00 |
| = Disposable Earnings | $4,800.00 |
| CCPA Ceiling (60% — Tier 3) | × 0.60 = $2,880.00 max |
| CA DCSS Default Cap (50% NDI) | × 0.50 = $2,400.00 |
| Typical Maximum Withholding | $2,400.00 (DCSS default) or up to $2,880.00 if court authorizes |
Profile: Two children, supporting another dependent, current on payments.
| Gross Monthly Income | $5,000.00 |
| Minus: Mandatory Deductions (est. 20%) | -$1,000.00 |
| = Disposable Earnings | $4,000.00 |
| CCPA Ceiling (50% — Tier 1) | × 0.50 = $2,000.00 max |
| Maximum Monthly Withholding | $2,000.00 |
Profile: One child, supporting another dependent, 12+ weeks behind in payments. This is the often-overlooked 55% tier — not 50%, not 65%.
| Gross Monthly Income | $5,000.00 |
| Minus: Mandatory Deductions (est. 20%) | -$1,000.00 |
| = Disposable Earnings | $4,000.00 |
| CCPA Ceiling (55% — Tier 2) | × 0.55 = $2,200.00 max |
| Maximum Monthly Withholding | $2,200.00 |
Profile: One child, 50/50 custody, 12+ weeks behind on payments, no other dependents.
| Gross Monthly Income | $7,000.00 |
| Minus: Mandatory Deductions (est. 20%) | -$1,400.00 |
| = Disposable Earnings | $5,600.00 |
| CCPA Ceiling (65% — Tier 4) | × 0.65 = $3,640.00 max |
| Maximum Monthly Withholding | $3,640.00 |
If you have multiple garnishments, federal law caps the total and sets a priority order. Child support always comes first.
| Priority | Type of Garnishment | Limit |
|---|---|---|
| 1 (Highest) | Child Support & Spousal Support (Income Withholding Order) | 50-65% of disposable earnings (CCPA §1673(b)) |
| 2 | Federal Tax Levy (IRS) | Varies by IRS rules |
| 3 (Lowest) | Creditor Garnishments (consumer debt, student loans, etc.) | Lesser of 20% of disposable earnings or 40% of earnings exceeding 48× state minimum wage/week (CCP §706.050) |
⚠️ Key Rule: Child support always takes priority. If a child support IWO takes the entire allowable amount under the applicable CCPA tier, consumer debt garnishments receive nothing. The total withholding across all garnishments cannot push the employee below the applicable CCPA floor.
To calculate how much a consumer debt Earnings Withholding Order could take from your paycheck (using the 20%/48× minimum wage formula under CCP §706.050), use our California Earnings Withholding Order Calculator. For FTB court-ordered debt (tax debts, SB 1477 wage garnishment), see the FTB Court-Ordered Debt Calculator.
Child support arrears increase your CCPA tier by 5 percentage points (50% → 55%, or 60% → 65%) when you are 12+ weeks behind. The court can also order an additional liquidation amount to pay down the back support faster. In California, interest on child support arrears accrues at 10% per year under Code of Civil Procedure §685.010.
California Family Code §5260 prohibits employers from discharging, refusing to employ, or taking disciplinary action against an employee based on a child support withholding order. Federal CCPA also prohibits termination based on garnishment for any single debt. However, the federal protection may not apply when an employee faces garnishments from two or more separate and distinct debts simultaneously. If you are facing termination, consult an employment attorney immediately.
You have four main legal options: file a Request for Hearing Regarding Earnings Assignment, request a child support modification, pay off the arrears, or negotiate a payment plan with DCSS.
Under Family Code §5246, you can file a Request for Hearing Regarding Earnings Assignment (Form FL-450) to challenge the IWO or request a reduction. Act quickly: you typically have 10 to 15 days from when you receive notice to file, depending on how notice was delivered (10 days from when the levying officer mails notice, or 15 days from when your employer delivers the order to you). Missing this window can forfeit your right to an immediate hearing. The court must schedule a hearing within 20 days of your filing.
Deadline guidance: To protect yourself, aim to file your Request for Hearing as soon as possible — and no later than 10 to 15 days from when you receive notice (10 days from the levying officer's mailing, or 15 days from your employer's delivery, whichever applies to your notice). Do not delay. Consult a California family law attorney immediately if you need to challenge an IWO.
If your income has changed significantly (job loss, pay cut, disability, change in custody), you can file for a child support modification under Family Code §3651. You must show a "material change in circumstances." An income drop of 20% or more typically supports a modification. The process takes 2–6 months through the court.
If your withholding is elevated because of arrears, paying off the back support will drop you from the higher arrears tier (55% or 65%) back to the standard tier (50% or 60%). Contact DCSS for an exact payoff amount. Interest accrues at 10% per year, so addressing arrears quickly reduces the total balance.
DCSS may agree to a structured payment plan that allocates withholding between current support and arrears. Contact DCSS at 1-866-901-3212 or childsupport.ca.gov to discuss your options.
| Option | Best For | Timeframe |
| Request Hearing (FL-450) | Incorrect IWO or hardship | File within 10–15 days of notice |
| Child Support Modification | Income change (20%+ drop) | 2–6 months (court process) |
| Pay Off Arrears | High tier due to arrears | Immediate effect on tier |
| DCSS Payment Plan | Gradual arrears reduction | Negotiated with DCSS |
Most child support calculators show only the support obligation amount. Ours shows the actual impact on your paycheck — including all four CCPA tiers, California's 50% NDI cap, and your remaining take-home pay.
| Metric | Most Calculators | Our Calculator |
|---|---|---|
| Support Obligation (Estimate) | ✅ Yes | ✅ Yes (with disclaimer) |
| All Four CCPA Tiers (50/55/60/65%) | ❌ Often missing 55% tier | ✅ Yes — all four |
| CA DCSS 50% NDI Cap Disclosure | ❌ No | ✅ Yes |
| Disposable Earnings Calculation | ❌ No | ✅ Yes |
| Net Pay After Withholding | ❌ No | ✅ Yes |
| Pay Frequency Conversion | ❌ No | ✅ Yes |
| K-Factor Limitations Disclosed | ❌ No | ✅ Yes |
| 2026 Rates | ⚠️ Varies | ✅ Yes |
| How to Stop/Reduce Withholding | ❌ No | ✅ Yes |
A $500 monthly withholding on a $5,000 gross paycheck might sound manageable, but after taxes and mandatory deductions, your actual take-home pay could be $3,200. The withholding takes another $500 from that. Your real remaining budget is $2,700 — a very different picture than gross income suggests. Use our California Hourly Paycheck Calculator to get a complete breakdown of your pay after all deductions.
You can't build a realistic budget from gross income. Our calculator gives you the actual take-home figure.
Rent and mortgage affordability depend on take-home pay after withholding, not gross income.
If net pay doesn't cover basic expenses, you may have grounds for a modification. Knowing the exact number is the first step.
Understanding exactly how the calculation works — and what your legal protections are — reduces uncertainty.
➡️ Try it now: Use the calculator above and enter your exact income, deductions, and custody arrangement. See the full net pay picture — not just an obligation estimate.
Most calculators give you half the story. We provide the complete picture: all four CCPA tiers, California's 50% NDI default cap, disposable earnings calculation, net pay impact, K-factor limitations, and options to reduce withholding — in one place.
Quick answers to the most common questions about how child support withholding works in California.
This calculator uses verified 2026 California data, federal law (CCPA), and California Family Code §4055 to estimate your child support wage withholding. All calculations are transparent and show every step. Please review the limitations below before relying on any result.
⚠️ Disclaimer: This calculator is for informational and educational purposes only. It is not legal advice and does not replace professional legal guidance or Judicial Council-certified support calculation software. Child support laws are complex and fact-specific. Always consult a licensed California family law attorney or the Department of Child Support Services (DCSS) for advice about your specific situation.
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