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👨‍👩‍👧 Child Tax Credit in San Mateo, San Mateo County, California — 2026

Eligibility, income limits, local offices and how to apply for San Mateo residents

Up to $2,000 per childMax Benefit
1-800-829-1040Helpline
CAState
Phase out above $200kFPL Threshold
📊 2026 Income Limits — San Mateo, California
Household SizeMonthly LimitAnnual Limit
1 person$1,632/mo$19,578/yr
2 people$2,215/mo$26,572/yr
3 people$2,798/mo$33,566/yr
4 people ← typical$3,482/mo$41,782/yr
5 people$4,065/mo$48,778/yr
6 people$4,648/mo$55,774/yr
7 people$5,231/mo$62,770/yr
8 people$5,814/mo$69,766/yr

Source: HHS Federal Poverty Guidelines 2026. Effective January 2026.

📝 How to Apply — San Mateo, California
1
Check Eligibility
Income at or below Phase out above $200k. Family of 4 in San Mateo: $3,482/month in 2026.
2
Apply Online — Fastest
Visit www.irs.gov/credits-deductions/individuals/child-tax-credit — available 24/7.
3
Apply by Phone — 1-800-829-1040
Call Mon–Fri business hours for San Mateo residents.
4
Apply In-Person — San Mateo County Office
Visit offices near San Mateo. Walk-ins accepted.
📋 Documents Required — San Mateo
  • Child Social Security numbers
  • Proof of relationship
  • Tax return Form 1040
❓ FAQs — Child Tax Credit in San Mateo
Who qualifies for Child Tax Credit in San Mateo, California?
Residents of San Mateo, San Mateo County, California with income at or below Phase out above $200k. Family of 4: $3,482/month. Call 1-800-829-1040.
How to apply for Child Tax Credit in San Mateo?
Apply online at www.irs.gov/credits-deductions/individuals/child-tax-credit, call 1-800-829-1040, or visit San Mateo County office.
Is there a Child Tax Credit office in San Mateo?
The nearest office is in San Mateo County. Visit office locator for exact address and hours.
🔗 Other Benefits in San Mateo, California
🍎 SNAP Benefits🏥 Medicaid🏠 Section 8 Housing🍼 WIC Program⚡ LIHEAP Energy Help💵 TANF Cash Assistance🧓 SSI Benefits♿ SSDI Benefits
🚀 Apply for Child Tax Credit
Apply Online — Official ↗ 📞 Call 1-800-829-1040 ← Back to San Mateo County
🔔 California Alerts 2026
Free alerts when Child Tax Credit changes in California.
📌 All Benefits in San Mateo
🍎 SNAP Benefits🏥 Medicaid🏠 Section 8 Housing🍼 WIC Program⚡ LIHEAP Energy Help💵 TANF Cash Assistance🧓 SSI Benefits♿ SSDI Benefits👶 CHIP Health Insurance🏦 Local Food Banks