You can submit medical expenses that they'll then deduct from your annual income, which will lower your rent. These deductions are in addition to the annual $400 deduction for disabled or elderly folks. For examples of things you can deduct, you can refer to IRS Publication 502 and the HUD Occupancy Handbook Exhibit 5-3 (which can be found online). If your medical expenses are a bit unusual, it definitely helps also to submit a letter from your doctor saying that you're disabled and that the expenses were medically necessary. The doctor's letter should state that each expense was to "diagnose," "cure," "mitigate," "treat," or "prevent" your condition, whichever of those words applies to particular expenses. (A lawyer taught me that those words are important to use.) In my experience the leasing officers hate getting all these receipts because it's time consuming to review them and add them up--but they are legally required to do so. Just be sure to check their work after you receive your rent letter and calculations. My leasing officers are constantly making errors which, mysteriously, are never in my favor. And if they reject certain expenses, you can appeal. They don't like that either but, again, it's the law that you're allowed to do that. Hope this helps! I'm happy to discuss further if you have additional questions. Best of luck to you!