Key Takeaways

  • Bonuses = Supplemental Income —
    In California, bonuses are classified as supplemental wages and subject to special withholding rules rather than treated as ordinary wages.
  • Flat State Rate Applies —
    A flat withholding rate of 10.23% applies to all bonuses in California, regardless of the employee’s regular income bracket.
  • Two Federal Withholding Methods —
    Employers may use the percentage method (22% flat) or the aggregate method (combine with paycheck) for federal withholding, which can affect the upfront tax taken out.

There’s always something very exciting when you hear you’ll be receiving a bonus from your employer. However, that excitement can often lead to disappointment when you realize you not only have to pay taxes on the bonus, but oftentimes, it’s more tax than expected. In California, bonuses are taxed differently from regular income. They are considered supplemental income and are subject to both federal and state taxes. California uses a flat rate for state tax on bonuses, distinct from regular income tax rates. The federal taxation of bonuses can be calculated using either the percentage method or the aggregate method, regardless of your tax bracket. Additionally, the tax rates can vary by state. Let’s look at how bonuses are taxed in California. 

Like regular pay, bonuses are subject to both federal and state tax. Many believe that bonus pay is just like a regular paycheck and is added to your regular income and taxed at that rate. But that’s generally not the case. Bonuses are typically considered supplemental income and that is taxed at a different rate. The federal bonus flat tax rate is 22%. In California, bonuses are taxed currently at a rate of 10.23%. For example, if you earned a bonus for $5,000, you would owe $511.50 in taxes on that bonus to the state of California. In some cases, bonus income is subject to additional taxes, including social security and Medicare taxes.

This office does not handle: Unemployment Insurance Benefits (UI), State Disability Issues (SDI), Worker Compensation Issues, or EDD Overpayments.

When it comes to the employer paying taxes on the bonus, there are two ways a business owner may choose to do so. The first option is called the percentage method and it’s the simplest way to pay bonuses. This method is used when the employer pays the bonus and withholds the California bonus tax rate of 10.23% and 22% federal flat rate.

The other way an employer can withhold bonus tax is through the aggregate method. This is when the bonus is issued with your regular salary payment and you are taxed at that higher rate. However, if an employer uses the aggregate tax method ,that does not mean you will end up paying more tax on your bonus. You’ll likely see that difference come back in the form of a tax refund.

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Brandessa Hale
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I can't recommend Allison enough! She helped me successfully navigate a stressful EDD audit with expertise and grace. Not only is she incredibly smart and thorough, but she's also genuinely kind—something you don’t always expect from an attorney. Her support and guidance made all the difference. If you need a tax attorney who knows her stuff and truly cares, she's the one to call!
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Robin Christiansen
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Thank you Allison for all of your help and knowledge, and your strong team And referrals. I am beyond grateful. You went above and beyond my expectations.
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Dee Thibodeau
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2024- Working with Allison has been an incredibly smooth experience both times I’ve worked with her. Her expert advice and the support she provides are outstanding, and we’ve had nothing but positive results each time. 2020- I was so impressed with her work during an EDD audit. I would HIGHLY recommend Allison to anyone going through an EDD Audit. From the very first 3 minutes of speaking with her, she was super helpful and professional, while also making me feel like I was talking to a friend, which really helped calm my anxiety. Allison was dedicated to helping us achieve the best possible outcome and was honest about all scenarios, even preparing us for the worst. We ended up with the VERY best outcome because of how she guided us through the process and made sure we had everything ready to tell our story to the auditor. If you want someone who truly listens, understands your business, and will be your biggest advocate, call Allison now! Be ready because she’s quick to respond with both calls and emails.
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Nadine Kunal
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Very thoughtful, concise, and honest advice provided. Would recommend her council to my family.
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Alex L
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We retained the services of Allison Soares for a recent IRS audit. The IRS was claiming we owed an exorbitant amount of money. After interviewing several qualified attorneys, Allison was the obvious choice. During this very stressful time for our family, we appreciated how knowledgeable and responsive she was from the very first call. Her professionalism and commitment to our case was truly impressive. She pointed out a few critical points, that another attorney may have missed, which we believe helped our case immensely. She guided us through this complicated process with great success and we could not have been happier with the outcome of the audit. We are 100% satisfied with her work and would highly recommend her to anyone seeking legal tax advice. Thank you so much Allison, we are truly grateful for all your hard work.
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Daniel Klein
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I called this office to have a tax issue clarified for me. I have never received more candid, honest, and useful information. I would highly recommend Allison Soares.
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Parisa Ansari
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Allison Soares is incredibly knowledgeable, prompt, and helpful. Her detailed expertise in tax matters made my experience exceptional. Highly recommended!
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Allen Wang
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I received an EDD audit letter for my small s-corp business. I feel nervous. Fortunately I found Allison. I talked with her on phone today about my business and my concern, she gave me very solid suggestions and confidence to handle this. She is very honest and I highly recommend her to anyone who has trouble with EDD audit!
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Elie Nader
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Allison Soares is a great tax attorney. She helped my business navigate an difficult tax situation and I am very happy with the outcome

If you’re confused about how bonuses are taxed in California or on a federal level, an experienced tax professional can help you determine what you should be paying in bonus tax. Not all states have a tax on bonuses, so make sure to talk with a tax attorney or professional if you need help with bonus tax structures.

Allison Soares is a partner and tax attorney at Vanst Law LLP. Before starting her own practice, Soares was a partner at a tax law firm where she honed her skills handling a wide variety of tax and employment-related cases. In addition to her legal work, she has worked in accounting and utilizes that knowledge to her advantage while handling cases involving EDD audits.

Allison Soares

Allison Soares, a renowned tax attorney, excels in representing clients before the IRS, FTB, EDD, and CDTFA. With a Bachelor of Arts in Finance from the University of Wisconsin, Milwaukee, and a transformative teaching stint in Brazil, Allison’s diverse background enriches her legal expertise. She pursued law at St. Thomas University School of Law, Miami, complementing it with an MBA in accounting and forensic accounting. Further honing her skills, she obtained a Master of Laws in Taxation from the University of San Diego School of Law. As an adjunct professor at San Diego State University, Allison imparts her knowledge in tax procedures, practice, and ethics. Her accolades include being named Best of the Bar by the San Diego Business Journal and multiple Super Lawyer recognitions. Committed to community service, she volunteers with Forever Balboa Park and Friends of Balboa Park. Allison’s authoritative contributions in tax law are showcased through her publications and speaking engagements.
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Brandessa Hale profile picture
Brandessa Hale
Google star 1Google star 2Google star 3Google star 4Google star 5
I can't recommend Allison enough! She helped me successfully navigate a stressful EDD audit with expertise and grace. Not only is she incredibly smart and thorough, but she's also genuinely kind—something you don’t always expect from an attorney. Her support and guidance made all the difference. If you need a tax attorney who knows her stuff and truly cares, she's the one to call!
Posted on Google Google
Robin Christiansen profile picture
Robin Christiansen
Google star 1Google star 2Google star 3Google star 4Google star 5
Thank you Allison for all of your help and knowledge, and your strong team And referrals. I am beyond grateful. You went above and beyond my expectations.
Posted on Google Google
Dee Thibodeau profile picture
Dee Thibodeau
Google star 1Google star 2Google star 3Google star 4Google star 5
2024- Working with Allison has been an incredibly smooth experience both times I’ve worked with her. Her expert advice and the support she provides are outstanding, and we’ve had nothing but positive results each time. 2020- I was so impressed with her work during an EDD audit. I would HIGHLY recommend Allison to anyone going through an EDD Audit. From the very first 3 minutes of speaking with her, she was super helpful and professional, while also making me feel like I was talking to a friend, which really helped calm my anxiety. Allison was dedicated to helping us achieve the best possible outcome and was honest about all scenarios, even preparing us for the worst. We ended up with the VERY best outcome because of how she guided us through the process and made sure we had everything ready to tell our story to the auditor. If you want someone who truly listens, understands your business, and will be your biggest advocate, call Allison now! Be ready because she’s quick to respond with both calls and emails.
Posted on Google Google
Nadine Kunal profile picture
Nadine Kunal
Google star 1Google star 2Google star 3Google star 4Google star 5
Very thoughtful, concise, and honest advice provided. Would recommend her council to my family.
Posted on Google Google
Alex L profile picture
Alex L
Google star 1Google star 2Google star 3Google star 4Google star 5
We retained the services of Allison Soares for a recent IRS audit. The IRS was claiming we owed an exorbitant amount of money. After interviewing several qualified attorneys, Allison was the obvious choice. During this very stressful time for our family, we appreciated how knowledgeable and responsive she was from the very first call. Her professionalism and commitment to our case was truly impressive. She pointed out a few critical points, that another attorney may have missed, which we believe helped our case immensely. She guided us through this complicated process with great success and we could not have been happier with the outcome of the audit. We are 100% satisfied with her work and would highly recommend her to anyone seeking legal tax advice. Thank you so much Allison, we are truly grateful for all your hard work.
Posted on Google Google
Daniel Klein profile picture
Daniel Klein
Google star 1Google star 2Google star 3Google star 4Google star 5
I called this office to have a tax issue clarified for me. I have never received more candid, honest, and useful information. I would highly recommend Allison Soares.
Posted on Google Google
Parisa Ansari profile picture
Parisa Ansari
Google star 1Google star 2Google star 3Google star 4Google star 5
Allison Soares is incredibly knowledgeable, prompt, and helpful. Her detailed expertise in tax matters made my experience exceptional. Highly recommended!
Posted on Google Google
Allen Wang profile picture
Allen Wang
Google star 1Google star 2Google star 3Google star 4Google star 5
I received an EDD audit letter for my small s-corp business. I feel nervous. Fortunately I found Allison. I talked with her on phone today about my business and my concern, she gave me very solid suggestions and confidence to handle this. She is very honest and I highly recommend her to anyone who has trouble with EDD audit!
Posted on Google Google
Elie Nader profile picture
Elie Nader
Google star 1Google star 2Google star 3Google star 4Google star 5
Allison Soares is a great tax attorney. She helped my business navigate an difficult tax situation and I am very happy with the outcome