How Much Weed Can You Legally Have in California? Possession Limits Explained 2026

California legalised recreational cannabis in 2016, but legal does not mean unlimited. The state sets specific possession limits for flower, concentrates, and plants and the rules change depending on where you are, whether you are driving, and whether you hold a medical cannabis card.
Here is a plain-English breakdown of exactly what adults 21 and over can legally have in California in 2026.

The Basic Possession Limits

For recreational cannabis consumers aged 21 and older, California law under Proposition 64 sets the following limits:

Flower (non-concentrated cannabis)

Up to 28.5 grams approximately one ounce. This is the amount you can legally possess on your person or in your home at any given time.

Concentrated cannabis

Up to 8 grams. cannabis concentrates include wax, shatter, crumble, oil, and vape cartridge oil. The 8-gram limit applies to your total concentrate possession across all forms.

Cannabis plants

Up to 6 live plants at your primary residence. The plants must not be visible from a public space, and landlords and local jurisdictions may restrict home cultivation further.

Edibles

THC Edibles are classified under the 28.5-gram flower limit in terms of the cannabis they contain, but California law caps individual edible products at 100mg THC per package and 10mg THC per serving for commercially sold products. There is no separate edible possession limit for adults beyond having a reasonable personal use amount.
These limits apply to what you can possess at one time. They are separate from purchase limits the 28.5-gram figure is also the maximum you can buy in a single transaction from a licensed retailer.

Cannabis in Your Car: The Vehicle Rules

This is where many consumers run into unexpected legal complications.
California law treats cannabis in a vehicle similarly to open container alcohol laws. The relevant rules:

The cannabis must be in a sealed, unopened container.

An opened package even a resealable one you've used is considered an open container in a vehicle. Dispensaries and delivery services provide child-resistant, sealed packaging for exactly this reason.

The safest place for cannabis in a vehicle is the trunk.

Keeping it in the glove compartment or centre console alongside the driver is technically legal in a sealed container, but the trunk removes any ambiguity.

You cannot consume cannabis in a vehicle.

This applies to drivers and passengers equally. Smoking, vaping, or eating cannabis in a moving or parked vehicle on a public road is illegal.

You cannot drive while impaired.

California has no per se THC blood limit the way alcohol has the 0.08% BAC standard. Law enforcement uses field sobriety testing and Drug Recognition Evaluators to assess impairment. The practical guidance is straightforward: do not drive after consuming cannabis.

Public Consumption Rules

Being in possession is legal. Consuming in public is not. California prohibits cannabis consumption in any public place, on federal land, within 1,000 feet of a school or daycare (while children are present), or anywhere tobacco smoking is prohibited. This means sidewalks, parks, beaches, concert venues, and most outdoor public spaces are off-limits for consumption.
Private residences remain the primary legal consumption space for most California adults. Some local jurisdictions have licensed cannabis lounges or consumption spaces Oakland, Los Angeles, and San Francisco have seen active licensing in this category but these are venue-specific and limited.

Medical Cannabis Patients: Different Limits Apply

Qualified medical cannabis patients in California may possess significantly more than recreational limits allow. A person with a valid physician's recommendation or Medical Marijuana Identification Card (MMIC) can possess the amount their physician recommends, which the state interprets as an amount reasonably related to their medical needs.
In practice, this can mean well above the 28.5-gram recreational limit. Medical patients are also subject to reduced tax rates in some cases they pay the standard sales tax but may qualify for exemptions on certain local taxes depending on the jurisdiction.
If you hold a valid medical recommendation and are purchasing from a licensed California delivery service, it is worth asking about medical pricing. Some retailers adjust pricing for medical patients on qualifying purchases.

California Cannabis Tax in 2026

Understanding what you can legally possess is one part of the picture. Understanding what you pay in tax helps explain the cost.
California applies multiple layers of tax to cannabis purchases:

State excise tax: 19%

California's cannabis excise tax increased from 15% to 19% in 2026. This applies to all licensed cannabis retail sales, including delivery. It is calculated on the retail selling price.

State sales tax: 7.25%

Standard California sales tax applies to cannabis purchases in the same way it applies to most consumer goods.

Local business tax: up to 15%

Individual cities and counties may add their own business tax on top of state taxes. Oakland, San Francisco, and Sacramento all levy local cannabis taxes. The combined tax burden varies by city Bay Area consumers generally pay somewhere between 30% and 40% in combined taxes depending on location.

What this means in practice:

A $49 ounce of flower before tax becomes roughly $63–$68 after the combined California and local tax stack in the Bay Area. This is not the retailer's margin it is the regulatory cost of the licensed market.
This tax difference is part of why unlicensed sources can undercut licensed prices significantly. The trade-off is that licensed cannabis comes with mandatory third-party lab testing, standardised packaging, and no legal risk to the buyer. Purchasing from an unlicensed source carries criminal risk for both buyer and seller in certain quantities.

What Happens If You Exceed the Limits

California treats cannabis possession offences differently based on amount and circumstance.

Possession over 28.5 grams (recreational, no licence)

Classified as an infraction for adults roughly equivalent to a traffic ticket. Maximum fine of $100. No jail time for a first offence involving personal possession amounts.

Possession with intent to sell (unlicensed)

A much more serious matter. Unlicensed sale of cannabis remains a criminal offence in California and is prosecuted regardless of Proposition 64's personal possession protections.

Possession on federal property

Federal land national parks, military bases, federal buildings is not covered by California's legalisation. Possession on federal property remains a federal offence regardless of state law.

Minors

Cannabis possession by anyone under 21 carries separate penalties. Sale to minors is a criminal offence.

Delivery and Possession How It Works

One practical consequence of California's possession limits is that delivery orders are structured to comply with them automatically.

• Licensed California cannabis delivery services can only sell up to the legal recreational purchase limit per transaction 28.5 grams of flower and 8 grams of concentrate. Your delivery arrives in sealed, BCC-compliant packaging, which satisfies the vehicle open container requirement from the driver's end.
• When you receive a delivery at your home, you are accepting possession of the product at your residence which is both the legally compliant location for receipt and the safest place under California law to store your purchase.
• Browse Smoakland's full delivery menu with lab-tested flower, concentrates, and edibles at Smoakland. Same-day delivery across the Bay Area and Sacramento, with orders confirmed to stay within California's legal purchase limits. See current delivery coverage at the Smoakland delivery locations page.

Frequently Asked Questions

How much weed can you legally have in California?

Adults 21 and older can legally possess up to 28.5 grams (approximately one ounce) of cannabis flower and up to 8 grams of cannabis concentrate at any one time. At your primary residence, you may also cultivate up to 6 live cannabis plants.

Can you have weed in your car in California?

Yes, as long as it is in a sealed, unopened container. Opened containers in a vehicle are treated as open containers under California law. The trunk is the safest location. Consuming cannabis in a vehicle driver or passenger is illegal, as is driving while impaired by cannabis.

Can you smoke weed in public in California?

No. Public consumption is prohibited in California, including on streets, in parks, at beaches, and in any location where tobacco smoking is prohibited. Legal consumption is largely limited to private residences.

What is California's cannabis tax in 2026?

California charges a 19% state excise tax (increased from 15% in 2026) plus standard 7.25% state sales tax. Local jurisdictions can add a further business tax of up to 15%. Combined, most Bay Area consumers pay between 30% and 40% in total cannabis taxes on each purchase.

Can medical patients have more cannabis than recreational users?

Yes. Qualified medical cannabis patients with a physician's recommendation can possess an amount consistent with their medical needs, which may exceed the standard 28.5-gram recreational limit. Medical patients may also qualify for tax reductions in some jurisdictions.

Is there a legal limit on how much weed you can buy at once in California?

Yes. Licensed California retailers including delivery services can only sell up to 28.5 grams of flower and 8 grams of concentrate per transaction to recreational consumers. Multiple same-day purchases from different retailers technically remain subject to your total possession limit.

What happens if you have more than a legal ounce in California?

For adults, possession of more than 28.5 grams without a medical designation is an infraction similar to a traffic violation with a maximum fine of $100. Possession with intent to distribute is treated as a criminal matter, as is any possession on federal property.

This article is for general informational purposes only and does not constitute legal advice. Cannabis laws can change. For specific legal questions, consult a qualified California attorney. Cannabis possession and use remain illegal under federal law regardless of state regulations. Must be 21+ to purchase cannabis in California. Smoakland complies with all applicable California cannabis regulations. License #C9-0000075-LIC, C9-0000655-LIC, C9-0000174-LIC.