The New Nutrition Practice Tax Calendar: Every Deadline You Cannot Miss
A practical 2026 tax deadline calendar for new nutrition practices, including quarterly estimates, annual filings, and steps to stay compliant.
Starting a nutrition practice means adding tax compliance to your plate. Missing a deadline can trigger penalties, interest, and unnecessary stress. This guide lays out every tax deadline you need to know for 2026, with concrete steps to keep your practice on track.
Quarterly Estimated Tax Payments
If you expect to owe $1,000 or more in federal taxes for the year, the IRS requires quarterly estimated payments. This applies to sole proprietors, LLCs, and S-corporations. For 2026, the due dates are:
- Q1 (Jan 1 to Mar 31): April 15, 2026
- Q2 (Apr 1 to May 31): June 15, 2026
- Q3 (Jun 1 to Aug 31): September 15, 2026
- Q4 (Sep 1 to Dec 31): January 15, 2027
Each payment should cover income tax and self-employment tax (15.3% for Social Security and Medicare). Use Form 1040-ES to calculate and pay. You can pay online via IRS Direct Pay or the Electronic Federal Tax Payment System (EFTPS).
Practical step this week: Estimate your 2026 net income. Use a simple spreadsheet: total projected revenue minus deductible expenses. Multiply by 30% for a rough federal tax rate, then divide by 4 for each quarterly payment. Set a reminder for each due date.
Annual Federal Tax Return (Form 1040)
Your annual federal return is due April 15, 2026 for the 2025 tax year. If you need more time, file Form 4868 for an automatic 6-month extension, moving the due date to October 15, 2026. Note: an extension to file does not extend the time to pay. Interest and penalties accrue on any unpaid balance from April 15.
Practical step this week: If you haven’t filed your 2025 return yet, gather your income statements, expense receipts, and any 1099 forms. If you’re using a CPA, book an appointment now. If you’re filing yourself, use tax software that supports self-employment income.
State and Local Tax Deadlines
State income tax deadlines often align with the federal deadline, but not always. For example, California and New York use April 15, while some states like Virginia also use April 15. However, states like Hawaii and Idaho have different dates. Check your state’s department of revenue website for exact dates.
Additionally, many states require quarterly estimated payments. These typically mirror federal due dates, but confirm with your state.
Practical step this week: Search “[your state] tax due dates 2026” and note them in your calendar. If you operate in multiple states (e.g., seeing clients remotely), you may have filing obligations in each state. Consult a tax professional if you’re unsure.
Sales Tax Obligations
Nutrition practices often sell products like supplements, meal plans, or packaged foods. If you sell tangible goods, you may need to collect and remit sales tax. Rates vary by state and locality, typically ranging from 0% to 10%. For example, California’s base rate is 7.25%, while Oregon has no sales tax.
Sales tax returns are usually due monthly, quarterly, or annually, depending on your volume. For 2026, common quarterly due dates are April 30, July 31, October 31, and January 31. Monthly filers must submit by the 20th of the following month.
Practical step this week: Determine if you sell taxable goods. If yes, register with your state’s department of revenue. Keep a separate ledger for sales tax collected. Set reminders for your filing frequency.
Payroll Tax Deadlines (If You Have Employees)
If you hire staff, you must withhold federal income tax, Social Security, and Medicare. Payroll taxes are typically deposited semi-weekly or monthly, depending on your total tax liability. For 2026, the deposit schedule is based on the lookback period (July 1, 2024 to June 30, 2025). Most small practices fall under the monthly schedule, with deposits due by the 15th of the following month.
You must also file Form 941 quarterly, due by the last day of the month after the quarter ends (April 30, July 31, October 31, January 31). At year-end, file Form W-2 and W-3 by January 31, 2027.
Practical step this week: If you have employees, set up payroll with a provider like Gusto or ADP, which handle deposits and filings automatically. If you’re a solo practitioner, you can skip this section.
Retirement Plan Contribution Deadlines
Contributing to a retirement plan can reduce your taxable income. For a SEP IRA, the deadline to contribute for the 2025 tax year is the same as your tax filing deadline, including extensions: October 15, 2026. For a Solo 401(k), you must make employee contributions by December 31, 2026, but employer contributions can be made by April 15, 2027.
Practical step this week: If you haven’t set up a retirement plan, consider a SEP IRA. You can contribute up to 25% of your net earnings, capped at $69,000 for 2026. Even a small contribution lowers your tax bill.
Tax Calendar Summary Table
| Deadline | Tax Item | Who It Applies To |
|---|---|---|
| April 15, 2026 | Federal income tax return (2025) | All practices |
| April 15, 2026 | Q1 estimated tax payment (2026) | All practices |
| June 15, 2026 | Q2 estimated tax payment | All practices |
| September 15, 2026 | Q3 estimated tax payment | All practices |
| October 15, 2026 | Extended federal return due (2025) | If you filed Form 4868 |
| January 15, 2027 | Q4 estimated tax payment | All practices |
| January 31, 2027 | W-2/W-3 forms to employees and SSA | If you have employees |
| Varies by state | Sales tax returns | If you sell taxable goods |
| Varies | Payroll tax deposits | If you have employees |
FAQ
What happens if I miss an estimated tax payment? You’ll owe interest on the underpayment, plus a penalty of 0.5% per month on the unpaid amount. The IRS calculates this on Form 2210. To avoid this, pay at least 90% of your current-year tax liability or 100% of last year’s liability (110% if your adjusted gross income exceeds $150,000).
Can I pay estimated taxes with a credit card? Yes, the IRS accepts credit card payments through third-party processors, but they charge a convenience fee of about 1.85% to 2% of the payment. Direct Pay is free, so use that if possible.
Do I need to file a state tax return if I only see clients online? It depends. If you have clients in multiple states, you may have nexus in those states, creating filing obligations. Each state has its own rules. Consult a tax professional to determine your requirements.
What records should I keep for tax purposes? Keep all income and expense records for at least 3 years, but 6 years is safer. This includes bank statements, credit card statements, receipts, and mileage logs. Use accounting software like QuickBooks or Xero to track everything digitally.
Related guides
- 7 Mistakes New Nutrition Practices Make in Their First Year
- 7 Questions to Ask Before Buying a New Nutrition Practice
- 7 Things to Know Before You Start a New Nutrition Practice
The bottom line
Tax compliance for a nutrition practice is manageable if you break it down. Mark the four quarterly estimated payment dates, your annual return deadline, and any state-specific dates on your calendar. Set reminders one week before each due date. If you’re unsure about any obligation, spend $200 to $400 for a consultation with a CPA who specializes in small businesses. That cost is deductible, and it can save you thousands in penalties. Start this week by reviewing your 2025 income and setting up a simple tracking system for 2026. Your future self will thank you.