Taxation 1,513 Income tax 1,337 Tax returns 451 Tax administration and procedure 408 Law and legislation 173 Tax credits 139 Business enterprises 122 more ... Corporations 117 Withholding tax 114 Electronic filing of tax returns 111 Tax exemption 107 Trusts and trustees 97 Volunteer workers in income tax return preparation 86 Employee fringe benefits 83 Individual retirement accounts 80 Periodicals 73 Pensions 72 Earned income tax credit 70 Income tax deductions for losses 69 Inheritance and transfer tax 66 Foreign income 64 Income tax deductions 63 Noncitizens 62 Small business 62 Partnership 58 Impôts 56 Déclarations d'impôt 55 Tax collection 55 Payroll tax 48 Nonprofit organizations 47 less ...