In certain circumstances, you (or your survivors) may be able to obtain a reimbursement of money deducted from your pay for the Montgomery GI Bill - Active Duty (MGIB-AD).
If $1,200 was deducted from your pay for this purpose and you end up relinquishing your MGIB-AD benefit in favor of the new (Post-9/11) GI Bill, you can be reimbursed for those deductions when you’re using the last month of your 36-month GI Bill entitlement.
The same is true for
Reservists who became eligible for the MGIB-AD and paid $1,200 by any means,
then became eligible for the new GI Bill and relinquished MGIB-AD benefits
for the new GI Bill.
Also, if you die while on active duty any money deducted for the MGIB-AD (even if the full $1,200 was never deducted) can be refunded. The beneficiaries are whomever you named as SGLI beneficiaries, in the same proportions.
The request for this refund is normally handled by the Decedent Affairs Officer (DAO) or Casualty Assistance Calls Officer (CACO). But if this deductions were made, you should make sure this fact is noted somewhere that’s readily accessible to your survivors (e.g., a letter of last instructions) and that you tell your survivor where to find the information. Also, survivors should be sure to mention to the DAO or CACO that money was deducted from their deceased loved one’s pay for the MGIB-AD.