deductable

deduct +‎ -able

• (UK) IPA^(key): [dɪˈdʌktəbəɫ], [dɪˈdʊktəbəɫ]

deductable

1. Alternative spelling of deductible
   • 1903, Encyclopædia of Accounting, volume 3, page 329:

     The two amounts of tax so found would give the total tax deductable from a yearly payment falling due at 15th May 1902.

   • 1980, Kenya National Assembly Official Record (Hansard), Jun 19 - Nov 13, page 421,

     One very important point which has arisen is the whole question of the credits; the allowances; marriage allowance and child allowance which are deductable from income before one is taxed.

   • 1993, J. P. Makeham, L. R. Malcolm, The Farming Game Now, page 106:

     Farmers′ wages and personal costs are taxable not deductable. Deductable depreciation costs include costs of plant, equipment and structures which gradually wear out.

• deduct
• deductible