Alabama caps the deposit at one month's rent, which is among the tightest in the country, and then carves out specific exceptions. Those exceptions are where Birmingham portfolios get their compliance wrong.

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Alabama rules that apply here
The base cap under 35-9A-201 is one month's periodic rent, but additional amounts may be taken for pets, for changes to the premises, and for increased liability risks. Those are separate permitted charges with their own justification, not headroom on the base deposit. A portfolio that collects one and a half months and calls the whole thing a security deposit has exceeded the cap even where the extra amount would have been perfectly permissible if it had been characterised and documented correctly.
So characterisation is the compliance act. A pet deposit is a pet deposit on the ledger and in the lease, tied to the pet; an additional amount for premises changes is tied to the change. We record each component against its basis rather than summing them into one figure, because the sum is what looks like a violation.
Alabama's timeline is unusually generous at 60 days for the itemised written notice, and the penalty for missing it is severe: the landlord pays the tenant DOUBLE the original deposit. Sixty days is long enough that portfolios stop treating it as urgent, which is precisely why it gets missed.
Alabama 35-9A-201 caps the deposit at ONE month's periodic rent, among the tightest in the country, with separate permitted amounts for pets, changes to the premises and increased liability risks. Those exceptions are separately justified charges, not headroom on the base deposit. The itemised written notice is due within 60 days of termination and delivery of possession, and missing it means paying the tenant DOUBLE THE ORIGINAL DEPOSIT, not double the amount withheld.
Because the penalty is a multiple of the whole deposit rather than of the disputed sum, TIMING dominates accuracy as the risk. Reasonable charges delivered late cost more than aggressive charges delivered on time. The cap exceptions also make characterisation the compliance act: a pet amount must be recorded as a pet amount tied to the pet, not summed into a single deposit figure, because the sum is what reads as a violation.
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Only through the specific exceptions: pets, changes to the premises, and increased liability risks. Those are separately justified charges, not extra headroom on the base deposit, and they have to be characterised as such on the ledger and in the lease.
You have likely exceeded the one-month cap even where the additional amount would have been permissible if properly characterised. The sum is what reads as the violation.
Sixty days for the itemised written notice, which is generous enough that people stop treating it as urgent. Missing it means paying the tenant double the original deposit.
Other Alabama markets, the platforms we work in, and the functions available on their own.
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