The Montgomery GI Bill (MGIB) provides up to 36 months of education benefits to eligible service members and Veterans for programs such as: college, business, technical, or vocational school; apprenticeship / on-the-job training; correspondence courses; remedial, deficiency, and refresher training (in some cases); and flight training. You usually have 10 years to use your MGIB benefits, but the time limit can be fewer or more years depending on the situation.
You may qualify for additional entitlement under more than one education benefit
If you have two or more qualifying periods of active duty, you may now qualify for up to 48 months of entitlement. You must be eligible for benefits through the Post-9/11 GI Bill and either Montgomery GI Bill - Active Duty (MGIB-AD) or Montgomery GI Bill - Selected Reserve (MGIB-SR).
Note: Even if you gave up your right to use MGIB-AD or MGIB-SR benefits in the past (we call this “relinquishing” your benefits), you may now qualify to use some of that entitlement.
To find out if you can use more than one education benefit, please visit: https://www.va.gov/education/about-gi-bill-benefits/montgomery-active-duty/#what-if-im-eligible-for-more-t