0. 140291. 170548. 30257. 30257. 30257. Business Tax Credit Computation 1. If the amount on page 1. line 17. is S3,400 or less, your credit on Ste 18 is the entire amount of tax on line 17. (NO TAX WILL BE DUE) 2. If the amount on page 1. line 17, is $5.400 or over. no credit is allowed. Enter '0"