Short answer
Texas §92.108 generally bars a tenant from substituting the security deposit for the final month of rent, with a limited statutory exception.
What to do next
Keep rent and deposit ledgers separate and review the statutory exception before communicating a categorical answer.
Save the current lease, dated messages, receipts and any property-specific evidence together. A useful record shows what happened, when it happened and which document or rule you relied on.
Check the source
Rules may change and the right answer can depend on the home, city, lease and timing. Review the current official material before signing, charging a fee, sending a notice or making a legal decision.
Texas Property Code, Chapter 92 ↗
Put it into your workflow
A repeatable process turns a one-time answer into a reliable rental record. Capture the action in your property file, assign a follow-up date if needed and make sure any tenant communication matches the signed agreement.
Keep rent and deposit ledgers separate and review the statutory exception before communicating a categorical answer.
General information for U.S. landlords, with a Texas focus. This guide is not legal, tax or accounting advice. Consult a qualified professional for your situation.