The amounts in Box 52 and 53 total Box 21 on the T3. 52 and 53 were actually for the new capital gains tax that is now defunct. Box 52 was the amount before the new tax and 53 was the amount after the new tax was to come into effect. If the two boxes total box 21 on the T3, then your refund is correct. The program would have been calculating your refund based on incorrect data input. Ours went down too but is correct.
