Do you owe an estimated tax payment this January? If you’re self-employed in Menifee or earn business profit through a partnership, LLC, or S corporation, the answer may be yes. Fourth-quarter 2026 federal and California payments are both due January 15, 2027. Menifee Tax Group helps local owners review their numbers early, so the year’s final installment is less likely to catch them off guard.
Federal vs. California at a Glance
Federal and California rules don’t split the year the same way. Here’s how the final 2026 installment compares.
Federal (IRS) | California (FTB) | |
Due date | January 15, 2027 | January 15, 2027 |
Share of your annual estimate | 25% | 30% |
Generally required if you expect to owe | $1,000 or more | $500 or more (250 if married filing separately) |
Form | Form 1040-ES | Form 540-ES |
Late and short payments can get expensive. In fiscal year 2025, the IRS assessed $33.1 billion in civil penalties of all types on individual, estate, and trust income tax returns, according to the IRS 2025 Data Book.
Small Business Tax in Menifee: What to Check Before You Pay
Whether you run a shop off Newport Road, a landscaping crew working Audie Murphy Ranch, or a home-based business in Sun City, the prep looks about the same. Start with three questions.
Did your fall income change?
The January payment covers income from September through December. So pull your year-to-date profit and loss, then add a realistic estimate for the holiday months. A real estate agent who closed a few home sales in Menifee Lakes may need a larger payment. A seasonal business that slowed after summer may owe less. Rideshare and delivery drivers covering the I-215 corridor should include that income, too.
Do you meet a safe harbor?
You can generally avoid a federal underpayment penalty if your 2026 payments cover at least 90% of this year’s tax or 100% of last year’s. That second figure rises to 110% if your 2025 adjusted gross income topped $150,000 ($75,000 if married filing separately). But California applies its own version of these tests, so it’s worth checking both. The IRS estimated taxes page walks through the federal rules.
What have you already paid?
Subtract any W-2 withholding and your earlier 2026 installments. One California detail is easy to forget: the state’s third installment is 0%, so nothing was due in September. That gap is by design.
Your January 15 Estimated Tax Checklist
Work through these steps in early January. Paying a few days before the 15th gives you a cushion if a busy week or a bank delay gets in the way.
- Close out your books. Run a profit-and-loss report through December 31 so you’re working from actual figures, not guesses.
- Confirm how your business files. If you’re incorporated, the company’s own applicable estimated tax payments follow a separate schedule, with the final calendar-year installment due December 15. The January date covers your personal payments.
- Pay each agency separately. You can use IRS Direct Pay or EFTPS for federal and FTB Web Pay for California. Save every confirmation number.
- Consider filing early instead. If you file your 2026 federal return and pay the full balance by February 1, 2027, you generally don’t need to make the January 15 federal payment. That timeline is tight if you’re waiting on 1099s or K-1s.
- Look ahead to April. Your first 2027 installment is due April 15, the same day as your 2026 return. For year-round help, see our guide to the best tax preparation in Menifee for personal and business needs.
Start Tax Season on Steadier Ground
The mid-January deadline lands right after the holidays, when plenty of Menifee shops are still sorting December receipts. A little prep now can make it easier. If your income shifted this year or you’re unsure which safe harbor fits, a short review can help. Schedule a free consultation with Menifee Tax Group to check your numbers before the deadline.
