The amount of disability benefits you qualify for with an arthritis disability depends on whether you receive them through SSI or SSDI. The amount of your monthly benefit payments through SSDI depends on your lifetime earnings record. The more money you earn while working, the more you’ll receive as monthly SSDI benefits.
SSI benefits are a set amount for all people who qualify. However, the amount can change each year depending on cost-of-living adjustments. You could receive less SSI benefits if you have countable income from other sources, such as a part-time job. Countable income reduces your monthly SSI payment.