Business Details
Your Trusted Partner for Accounting Solutions
Langwasser and Company CPAs and Company CPAs, LLP has built a reputation as a trusted accounting firm serving individuals and businesses across Southern California and the United States. Our team of certified professionals delivers personalized financial guidance, combining decades of experience with a commitment to staying current with evolving tax laws and regulations. We specialize in tax planning and preparation, financial statement analysis, virtual CFO services, and audit representation, ensuring clients receive accurate and strategic support tailored to their unique needs. By prioritizing transparency and client education, we empower businesses to make informed financial decisions while minimizing compliance risks. Our expertise extends to QuickBooks implementation, business advisory services, and succession planning, addressing both immediate and long-term financial goals.With a focus on building lasting relationships, we provide proactive advice to help clients navigate complex financial landscapes with confidence. Our dedication to excellence is reflected in our track record of resolving tax disputes, optimizing cash flow, and delivering actionable insights that drive business growth. As a full-service firm, we pride ourselves on offering cost-effective solutions without compromising the quality of our work. Our clients benefit from our deep understanding of industry-specific challenges, whether in nonprofit organizations, small businesses, or high-net-worth individual tax planning. By maintaining rigorous professional standards and fostering a culture of continuous learning, we ensure our services remain aligned with the highest levels of accounting expertise and ethical practice.
Services
Tax Preparation
Financial Planning
Bookkeeping Services
Payroll Processing
QuickBooks Support
Audit Representation
Estate Planning
Business Advisory
Tax Relief
Cash Flow Management
Highlights and features
- We offer 30+ years of combined experience in tax and accounting services.
- Our team includes QuickBooks Pro-Advisors with specialized software expertise.
- We provide personalized financial strategies tailored to individual and business needs.
- Our CPAs have proven success in IRS audit representation and tax relief cases.
- We serve diverse industries including healthcare, real estate, and nonprofit organizations.
Associations and certifications
- AICPA
- California Society of Certified Public Accountants
What people say
Expert tax advice
QuickBooks specialists
IRS audit support
Personalized planning
Industry knowledge
Services
Tax Preparation
We prepare and file individual and business tax returns with precision and compliance. Our CPAs analyze deductions, credits, and tax strategies to minimize liabilities while ensuring adherence to federal and state regulations. Clients receive clear explanations of their returns and proactive advice for future tax years.
Financial Planning
Our financial planning services create customized roadmaps for long-term stability and growth. We assess income, investments, and goals to develop strategies for retirement, estate planning, and wealth preservation. Regular reviews ensure plans adapt to changing life circumstances and tax environments.
QuickBooks Support
We implement, customize, and maintain QuickBooks systems for small businesses. Services include setup, training, monthly reconciliations, and troubleshooting. Our goal is to streamline financial operations while ensuring accurate record-keeping for tax and decision-making purposes.
Tax Relief
We negotiate with the IRS to resolve back taxes, liens, levies, and wage garnishments. Our team develops payment plans, offers in compromise, and audit defense strategies. Confidential consultations help clients understand options for reducing tax debt burdens.
Business Advisory
We provide actionable insights for business growth through cash flow analysis, succession planning, and operational efficiency reviews. Our advisory services help owners make data-driven decisions while aligning financial practices with long-term objectives.
People
Karin Langwasser
Founding Partner
With over 25 years of experience, Karin Langwasser and Company CPAs and Company CPAs established the firm's commitment to personalized accounting solutions. Her expertise in tax strategy and business advisory services guides clients through complex financial decisions.
Rosa Paz
Managing Partner
Rosa Paz oversees daily operations and client relations, bringing 20+ years of CPA experience. She specializes in nonprofit accounting and tax compliance, ensuring organizations maintain their tax-exempt status.
Shawn Hull
Partner
Shawn Hull focuses on business tax planning and QuickBooks implementation. His technical proficiency in accounting software helps small businesses optimize financial workflows and reporting accuracy.
Cindy Agostini
Partner
As a tax law specialist, Cindy Agostini represents clients in IRS audits and tax court. Her background in estate planning addresses complex wealth transfer strategies for high-net-worth individuals.
Jesan Ledda
Partner/Controller
Jesan Ledda manages financial reporting and advisory services. His experience in corporate accounting and cash flow management supports businesses in achieving sustainable growth and profitability.
Questions
What accounting services do you offer for small businesses?
We provide bookkeeping, payroll processing, cash flow management, and business tax preparation tailored to small business needs.
Can you help with IRS tax debt problems?
Yes, we negotiate payment plans, offers in compromise, and resolve liens/levies through our tax relief services.
Do you offer QuickBooks training and support?
Yes, we provide setup, customization, employee training, and ongoing troubleshooting for QuickBooks users.
What industries do you specialize in?
We serve healthcare providers, real estate professionals, nonprofits, restaurants, and manufacturing businesses with industry-specific accounting solutions.
Reviews (7)
Carter Diggler
Jun 07, 2022
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Worst and most overpriced service in over 40 years of business. Low knowledge base, Outdated. Do NOT recommend.
Michelle Nguyen
Apr 28, 2021
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Great firm that is very knowledgeable for our complicated returns. We have been with Cindy for a couple years now and are very happy with the services we have received.
Hossein D.
Apr 07, 2021
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Professional, friendly, knowledgeable. Karin is a true master of accounting and her office runs like clockwork. I don't know what I would do without them!
Dawn S.
Feb 26, 2021
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Rosa has done my personal income taxes for the past two years. Very easy process and extremely professional. Well worth the money in my opinion for the sound financial advice and knowledge of tax laws. Highly recommended!
Mario G.
Dec 11, 2020
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Make sure you do the consultation with them before signing any documents. They charged $575 for a simple tax return. FYI, all they did was prepare the form. Wanted them to see if I qualify for the foreign earned income tax but they didn't know that since they didn't do a consultation until AFTER they prepared the regular tax return. Save yourself $545 and do your taxes online. Legal scam artists.
Michael C.
Jan 08, 2020
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I've gone to Karin for years for my taxes and have always been happy with her services. Her business has expanded greatly over the years, and I'm so pleased she's doing well! I recommend her without hesitation.
Doug Bradley
Jul 01, 2019
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I've been working with Langwasser for over 5 years (personally and with my LLC) and I can unabashedly say that they are an amazing group of people. I refer colleagues, friends and family whenever I can because I am very comfortable knowing how their business will be handled. I recently had to request a letter from my CPA while going through the home purchase process, and I needed it within 24 hours or else escrow would've been pushed back a week (costing at least hundreds of dollars), I called and Jackie and Karin were on it like white on rice.
I called at 3:00 on a Tuesday, and had the letter by 8:30 am Wednesday morning. If you're a business owner and needing a new CPA, or want a fresh set of eyes on your books I'd get an appointment with them ASAP.
I called at 3:00 on a Tuesday, and had the letter by 8:30 am Wednesday morning. If you're a business owner and needing a new CPA, or want a fresh set of eyes on your books I'd get an appointment with them ASAP.
