Resources & Info

Everything you need—career opportunities, important dates, client tools, and community resources—all in one place.

Join Our Team Events Deadlines Client Portal Disaster Relief Resources

Join Our Team

Build your career with a firm that’s been named one of the North Bay’s “Best Places to Work” for over a decade.

  • 10+ Years Best Places to Work
  • Firm Trips (Spain, Croatia, Alaska)
  • Nicaragua Medical Missions
  • Partner Track Available
  • Flexible Work Options
  • CPE & Training Support

Why Linkenheimer?

We’re not your typical accounting firm. With 94 years of history and a culture that prioritizes people over billable hours, we’ve built something special in Sonoma County.

Our team members stay—and that says everything.
We believe in work-life balance (and actually practice it), investing in professional development, and creating an environment where you can do meaningful work with clients you genuinely enjoy.

Open Positions

Current opportunities at Linkenheimer

No Current Opening

We don’t have any open positions at the moment, but we’re always interested in meeting talented people. Send us your resume—the right opportunity might be just around the corner.

Upcoming Events

Webinars, workshops, and community events to help you stay informed and connected.

Mar 15 2026
Webinar

2025 Tax Law Changes: What Business Owners Need to Know

Join our tax team for a comprehensive overview of new legislation affecting your business.

12:00 PM PST
60 min
Apr 02 2026
Workshop

Succession Planning Essentials

A hands-on workshop for business owners thinking about their exit strategy.

9:00 AM PST
Our Office
Apr 18 2026
Community

Rotary Business After Hours

Network with local business leaders at our hosted Rotary event.

5:30 PM PST
TBD

Want to be notified about upcoming events?

Subscribe to Our Newsletter
Subscribe to Our Newsletter

Important Tax Deadlines

Key dates to keep on your radar. Missing a deadline can mean penalties—we’re here to help you stay on track.

Jan 15

Q4 Estimated Tax Payment

Fourth quarter estimated tax payment due for individuals and businesses.
Individual
Mar 15

S-Corp & Partnership Returns

Form 1120-S and Form 1065 due for calendar-year S-corporations and partnerships.
Business
Apr 15

Individual Tax Returns Due

Form 1040 due. Also C-Corp returns (Form 1120) and Q1 estimated payments.
Individual
Jun 15

Q2 Estimated Tax Payment

Second quarter estimated tax payment due. Also deadline for US citizens abroad.
Quarterly
Sep 15

Extended Business Returns

Extended S-Corp, Partnership returns due. Q3 estimated payments also due.
Business
Oct 15

Extended Individual Returns

Extended Form 1040 and C-Corp returns due. Last chance for prior-year IRA contributions.
Individual

Client Portal Access

Secure, 24/7 access to your documents, tax returns, and financial information.

CCH Axcess Document Portal

Your secure portal to upload and access files from your CPA.

  • Upload documents securely
  • Review and approve tax returns
  • E-sign from any device
  • Access prior-year returns
  • Download financial statements
Access Document Portal

Pay Your Invoice

Convenient online payment options for your Linkenheimer invoices.

  • Pay by credit card or ACH
  • Set up autopay
  • Download receipts
  • Secure, encrypted transactions
Make a Payment
Need help accessing your portal? Having technical issues?
Contact Our Support Team
Contact Our Support Team

Disaster Relief Resources

Supporting our community through difficult times—because neighbors help neighbors.

We're Here to Help

Sonoma County has faced more than its share of devastating wildfires, and Linkenheimer has been here for every one. When disaster strikes, understanding the tax implications and available relief can make a real difference in your recovery.

If You’ve Been Affected:

  • Document everything — Photos, receipts, insurance correspondence
  • Check IRS disaster declarations — Extended deadlines may apply
  • Understand casualty loss rules — Complex but valuable deductions
  • Consider timing strategies — Claim losses in current or prior year
Schedule a Disaster Recovery Consultation
Schedule a Disaster Recovery Consultation

Helpful Resources

IRS Disaster Relief

Official IRS information on tax relief for disaster victims, including current disaster declarations.

Visit IRS Disaster Page

FEMA Assistance

Apply for federal disaster assistance including temporary housing, home repairs, and other needs.

Apply for FEMA Aid

CAL FIRE Information

Current fire information, evacuation notices, and recovery resources for California.

CAL FIRE Updates

Sonoma County Recovery

Local resources for fire recovery, rebuilding permits, and community support programs.

County Resources

2-1-1 Sonoma County

Free, confidential information and referral service connecting you to local resources.

Call 2-1-1 for Help

More Resources

Tools, guides, and information to help you make better financial decisions.
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Blog

Tax tips, business strategies, and financial insights from our team.
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Blog

Tax tips, business strategies, and financial insights from our team.
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FAQs

Answers to common questions about our services and processes.
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FAQs

Answers to common questions about our services and processes.
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Alliott Global Alliance

Our international network of accounting and law firms in 100+ countries.
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Alliott Global Alliance

Our international network of accounting and law firms in 100+ countries.