Late Fees and Rent Payment Rules in California

California does not set a dollar figure or percentage for late fees. Instead, a late fee is analyzed as liquidated damages: it is enforceable only if, at the time the lease was signed, the amount was a reasonable attempt to estimate the actual harm late payment would cause. A fee designed to punish or to pressure the tenant is not enforceable.

Practically, that means the fee has to bear some relationship to real costs — staff time chasing the payment, bookkeeping, bank charges. Fees in the neighborhood of 5% of monthly rent are commonly used and rarely challenged; escalating daily fees and double-digit percentages routinely are.

California law does not require a grace period. Rent is due on the day the lease says it is due. Many leases include a short grace period as a matter of practice, and once written into the lease it is binding on the landlord.

A separate and frequently-missed point: late fees cannot be included in a 3-day notice to pay rent or quit. That notice may demand rent only. Adding late fees or utility charges overstates the amount due and is one of the most common reasons an unlawful detainer case is thrown out.

A landlord must allow at least one form of payment that is neither cash nor electronic funds transfer — in practice, a check or money order. A landlord may only require cash-only payment for a limited period, generally up to three months, after a tenant's check has been dishonored, and the requirement must be delivered in writing with a copy of the dishonored instrument.

Landlords may offer online payment, and most do, but cannot make electronic payment the only option.

Owners of assisted housing properties of a certain size must offer tenants the option of having their positive rent payments reported to a credit bureau. Where the offer is required, it must be made in writing at lease signing and at least once annually, and the tenant may opt in or out at any time.