Tax Report Sales and Income [BOX 5] Total sales and income for the period(including GST and zero-rated Supplies) BOX 5 NZBOX5 [BOX 6] Zero-rated supplies in Box 5 BOX 6 NZBOX6 [BOX 7] The amount in Box 6 is subracted from Box 5 NZBOX7 NZBOX5 - NZBOX6 [BOX 8] Multiply the amount in Box 7 by 3 and then divide by 23 NZBOX8 (NZBOX7 * 3)/23 [BOX 9] Enter any adjustments from your calculation sheet BOX 9 NZBOX9 [BOX 10] Total GST collected on sales and income NZBOX10 NZBOX8 + NZBOX9 Purchases and Expenses [BOX 11] Total purchases and expenses(including GST) for which tax invoicing requirements have been met BOX 11 NZBOX11 [BOX 12] Multiply BOX11 by 3 and then divide by 23 NZBOX12 (NZBOX11 * 3)/23 [BOX 13] Credit adjustments from your calculation sheet NZBOX13 [BOX 14] Total GST credit for purchases and expenses NZBOX14 NZBOX12 + NZBOX13 [BOX 15] Difference between BOX10 and BOX14 NZBOX10 - NZBOX14