Partial benefit (also called proportionate benefit) provisions pay a reduced monthly amount when you have returned to work but at reduced capacity or earnings, supporting graduated return to work without losing all insurance benefits at once. The standard calculation is: (Pre-disability income minus current actual income) divided by pre-disability income, multiplied by your full monthly benefit. For example, if your pre-disability income was $10,000 per month and you have returned to work earning $4,000 per month, you have lost 60% of your income. If your full monthly benefit is $7,000, the partial benefit would pay 60% × $7,000 = $4,200 per month. The actual formulae and minimum income-loss threshold (some policies require a 20% or 25% loss before partial benefits engage) vary by insurer. Most policies include partial benefits as standard, but the exact wording matters — some pay until you return to full capacity, some cap partial benefits at a defined number of months, some require ongoing medical certification of partial disability. Partial benefits are particularly valuable for conditions with gradual recovery (mental health, post-cancer rehabilitation, chronic pain) where a sudden return to full work is unrealistic. Ask your treating doctor to specifically document partial work capacity and limitations when supporting an ongoing claim.