A

Accounting method

Accrual, Accrual Method

Cash, Cash Method

Change in, Change in Accounting Method

Combination, Combination Method

Special, Special Methods

Accounting method:

Accrual, Accrual method.

Cash, Cash method.

Accounting periods, Accounting Periods

Accrual method of accounting, Accrual Method

Expenses, Expenses

Income — general rule, Income—General Rule

Income — special rules, Income—Special Rules

Related persons, special rule, Special rule for related persons.

Adjusted basis of property, Adjusted basis.

Alcohol fuels credit, Credit for alcohol used as a fuel (Form 6478).

Alternative minimum tax, Alternative minimum tax (AMT).

Appeal rights, Appeals.

Assistance (see Tax help)

Audits, Examinations (audits).

B

Bad debt, Bad Debts

Barter income, Bartering for Property or Services

Basis of property, Basis.

Biodiesel fuels credit, Biodiesel fuels credit (Form 8864)

Business credits, Business Credits

Business expenses, 8. Business Expenses

Business income, 5. Business Income

C

Calendar tax year defined, Calendar tax year.

Canceled debt, Canceled Debt, Cancellation of qualified real property business debt.

Capital gain or loss, Is My Gain or Loss Ordinary or Capital?

Car expenses, Car and Truck Expenses, Methods for Deducting Car and Truck Expenses

Cash discount, Cash discounts., Cash discounts.

Cash method of accounting, Cash Method

Expenses, Expenses

Income, Income

Change, accounting method, Automatic change procedures.

Changing methods, Changing methods.

Claim for refund, Refunds.

Clean-fuel vehicle credit, Car and Truck Expenses

Collection of tax, Collections.

Combination method of accounting, Combination Method

Comments on publication, Comments and suggestions.

Condemned property, Condemned property.

Consignments, Consignments.

Construction allowances, Construction allowances.

Contributions to selected community development corporations, credit for, Credit for contributions to selected community development corporations (Form 8847).

Cost of goods sold, 6. How To Figure Cost of Goods Sold

Credit:

Alcohol fuels, Credit for alcohol used as a fuel (Form 6478).

Biodiesel fuels, Biodiesel fuels credit (Form 8864)

Clean-fuel vehicle, Car and Truck Expenses

Contributions to selected community development corporations, Credit for contributions to selected community development corporations (Form 8847).

Disabled access, Disabled access credit (Form 8826).

Electric vehicle, Car and Truck Expenses

Empowerment zone employment, Empowerment zone and renewal community employment credit (Form 8844).

Energy, Energy credit.

Enhanced oil recovery, Enhanced oil recovery credit (Form 8830).

General business, 4. General Business Credit

How to claim, How To Claim the Credit

Indian employment, Indian employment credit (Form 8845).

Investment, Investment credit (Form 3468).

Liberty zone business employee, New York Liberty Zone business employee credit (Form 8884).

Low sulfur diesel fuel production, Low sulfur diesel fuel production credit (Form 8896).

Low-income housing, Low-income housing credit (Form 8586).

Orphan drug, Orphan drug credit (Form 8820).

Reforestation, Reforestation credit.

Rehabilitation, Rehabilitation credit.

Renewable electricity and refined coal production, Renewable electricity and refined coal production credit (Form 8835).

Research, Credit for increasing research activities (Form 6765).

Taxes paid on certain employee tips, Credit for employee social security and medicare taxes paid on certain employee tips (Form 8846).

Welfare-to-work, Welfare-to-work credit (Form 8861).

Work opportunity, Work opportunity credit (Form 5884).

D

Damages as income, Damages.

Debt:

Bad, Bad Debts

Canceled, Canceled Debt

Qualified real property business, Qualified real property business debt.

Debts:

Refund offset against, Offset against debts.

Definitions:

Accounting method, Accounting Methods

Accounting periods, Accounting Periods

Bartering, Bartering for Property or Services

Basis, Basis.

Business bad debt, Business bad debt.

Cash discount, Cash discounts., Cash discounts.

Dispositions of property, What Is a Disposition of Property?

Drawing account, Merchandise withdrawn from sale.

Entertainment expenses, Entertainment expenses.

Fair market value, Fair market value.

Fringe benefit, Fringe benefits.

Local transportation expenses, Local transportation expenses.

Necessary expense, Introduction

Net operating loss, Net Operating Losses (NOLs)

Nonbusiness bad debt, Nonbusiness bad debts.

Ordinary expense, Introduction

Principal place of business, Principal place of business.

Qualified long-term real property, Qualified long-term real property.

Qualified real property business debt, Cancellation of qualified real property business debt.

Rent, Rent Expense

Restricted property, Other Income

Retail space, Retail space.

Self-employment tax, Self-Employment Tax

Sole proprietor, Introduction

Statutory employee, Introduction

Tax home, Local transportation expenses.

Tax year, Accounting Periods

Trade discount, Trade discounts., Cash discounts.

Travel expenses, Travel, Meals, and Entertainment

Depreciation:

Deduction, Depreciation

Listed property, Listed property.

Recapture, Recapture of depreciation.

Special allowance, Special depreciation allowance.

Disabled access credit, Disabled access credit (Form 8826).

Disposition of property:

Business property, Introduction

Installment sale, Installment sales., Installment sales.

Like-kind exchange, Like-kind exchanges., Like-kind exchanges., Exchange of like-kind property.

Nontaxable exchange, Nontaxable exchanges.

Sale of a business, Sale of a business.

Dividend income, Interest and Dividend Income

Donation of inventory, Donation of inventory.

Drawing account, Merchandise withdrawn from sale.

E

e-file, IRS e-file (Electronic Filing)

EFTPS, EFTPS

Electric vehicle credit, Car and Truck Expenses

Electronic filing, IRS e-file (Electronic Filing)

Employee benefit programs, Fringe benefits.

Employees' pay, Employees' Pay

Employer identification number (EIN), Employer identification number (EIN).

Employment taxes:

About, Employment Taxes

Deduction for, Employment taxes.

Empowerment zone employment credit, Empowerment zone and renewal community employment credit (Form 8844).

Energy credit, Energy credit.

Enhanced oil recovery credit, Enhanced oil recovery credit (Form 8830).

Entertainment expenses, Entertainment expenses.

Escrow, payments placed in, Payment placed in escrow.

Estimated tax, How Do I Pay Income Tax?

Examinations (audits), Examinations (audits).

Excise taxes:

About, Excise Taxes

Deduction for, Excise taxes.

Expenses, 8. Business Expenses

F

Fair market value defined, Fair market value.

Filing business taxes, 1. Filing and Paying Business Taxes

Fiscal tax year defined, Fiscal tax year.

Form

4797, Listed property.

Form:

1040, How Do I File?

1040-ES, How Do I Pay Income Tax?

1040-V, Balance due.

1040–V, Line 74.

1099-B, Information returns.

1099-MISC, Form 1099-MISC., Information returns.

1128, Change in tax year.

2210, Penalty for underpayment of tax.

2290, Form 2290.

3115, Change in Accounting Method

3468, Investment credit (Form 3468).

3800, How To Claim the Credit

4562, Form 4562.

4684, Casualties and thefts.

4797, Dispositions of business property and depreciable property., Condemned property.

4868, When Is My Tax Return Due?

5884, Work opportunity credit (Form 5884).

6251, Alternative minimum tax (AMT).

6252, Installment sales.

6478, Credit for alcohol used as a fuel (Form 6478).

6765, Credit for increasing research activities (Form 6765).

720, Form 720.

8300, Form 8300.

8586, Low-income housing credit (Form 8586).

8594, Sale of a business.

8820, Orphan drug credit (Form 8820).

8824, Like-kind exchanges., Like-kind exchanges.

8826, Disabled access credit (Form 8826).

8829, Deduction limit.

8830, Enhanced oil recovery credit (Form 8830).

8835, Renewable electricity and refined coal production credit (Form 8835).

8844, Empowerment zone and renewal community employment credit (Form 8844).

8845, Indian employment credit (Form 8845).

8846, Credit for employee social security and medicare taxes paid on certain employee tips (Form 8846).

8847, Credit for contributions to selected community development corporations (Form 8847).

8857, Innocent spouse relief.

8861, Welfare-to-work credit (Form 8861).

8864, Biodiesel fuels credit (Form 8864)

8884, New York Liberty Zone business employee credit (Form 8884).

8896, Low sulfur diesel fuel production credit (Form 8896).

982, Exclusions

Schedule C, How Do I File?

Schedule C-EZ, How Do I File?

SS-4, Employer identification number (EIN).

SS-5, Social security number (SSN).

W-2, Form W-2.

W-7, Individual taxpayer identification number (ITIN).

W-9, Other payee.

Fringe benefits, Fringe benefits.

Fuel taxes, Fuel taxes.

G

General business credit, 4. General Business Credit

Gross profit:

Accuracy, Testing Gross Profit Accuracy

Additions to, Additions to Gross Profit

H

Health insurance, deduction for self-employed, Self-employed health insurance deduction.

Help (see Tax help)

Help from Small Business Administration, Small Business Administration

Home, business use of, Business Use of Your Home

Husband and wife business, Husband and wife business.

I

Identification numbers, Identification Numbers

Income tax return, who must file, Do I Have To File an Income Tax Return?

Income tax:

About, Income Tax

Deduction for, Income taxes.

How to pay, How Do I Pay Income Tax?

Underpayment penalty, Penalty for underpayment of tax.

Income:

Barter, Bartering for Property or Services

Bonus, Lease bonus.

Canceled lease payments, Lease cancellation payments.

Dividend, Dividends.

How to account for, Accounting for Your Income

Other types, Other Income

Paid to a third party, Payments to third parties., Income paid to a third party.

Prepaid rent, Prepaid rent.

Rental, Real Estate Rents, Personal Property Rents

Independent contractor, Employment Taxes

Indian employment credit, Indian employment credit (Form 8845).

Individual taxpayer identification number (ITIN), Individual taxpayer identification number (ITIN).

Information returns, Information Returns

Innocent spouse relief, Innocent spouse relief.

Installment sales, Installment sales.

Insurance:

Expense, Insurance

Proceeds, Insurance proceeds.

Interest:

Expense, Interest

Income, Interest and Dividend Income

Inventories, Inventories

Investment credit, Investment credit (Form 3468).

IRS mission, IRS mission.

K

Kickbacks, Kickbacks., Expenses You Cannot Deduct

L

Legal fees, Legal and Professional Fees

Like-kind exchanges, Like-kind exchanges., Exchange of like-kind property.

Local transportation expenses, Local transportation expenses.

Lodging, Meals and lodging.

Long-term capital gain or loss, Is My Capital Gain or Loss Short Term or Long Term?

Lost income, Lost income payments.

Low sulfur diesel fuel production credit, Low sulfur diesel fuel production credit (Form 8896).

Low-income housing credit, Low-income housing credit (Form 8586).

M

Meals, Meals and lodging.

Mileage rate for vehicles, Standard mileage rate.

More information (see Tax help)

N

Net operating losses, Net Operating Losses (NOLs)

Net profit or loss, Introduction

New York Liberty Zone business employee credit, New York Liberty Zone business employee credit (Form 8884).

Nonbusiness bad debt, Nonbusiness bad debts.

Nondeductible insurance premiums, Nondeductible premiums.

Nonemployee compensation, Introduction

Nontaxable exchanges, Nontaxable exchanges.

Not-for-profit activities, Not-for-Profit Activities

O

Ordinary gain or loss, Is My Gain or Loss Ordinary or Capital?

Orphan drug credit, Orphan drug credit (Form 8820).

Other deductible expenses, Other Expenses You Can Deduct

Other nondeductible expenses, Expenses You Cannot Deduct

P

Parking fees, Parking fees and tolls.

Partners, husband and wife, Husband and wife business.

Pay, different kinds of, Kinds of pay.

Paying:

Business taxes, 1. Filing and Paying Business Taxes

Income tax, How Do I Pay Income Tax?

Penalty:

Failure to file information returns, Penalties.

Failure to furnish correct payee statements, Penalties.

Underpayment of tax, Penalty for underpayment of tax.

Pension plans, Pension Plans

Personal property tax, Personal property tax.

Prepaid expense:

Extends useful life, Prepayment.

Rent, Rent paid in advance.

Professional fees, Legal and Professional Fees

Promissory notes, Promissory notes.

Publications (see Tax help)

Q

Qualified real property business debt, Qualified real property business debt.

R

Real estate rents, Real Estate Rents

Real estate taxes, Real estate taxes.

Recovery of deductions, Recovery of items previously deducted.

Reforestation credit, Reforestation credit.

Refund:

Offset against debts, Offset against debts.

Rehabilitation credit, Rehabilitation credit.

Related persons:

Special rule, Special rule for related persons.

Unreasonable rent, Unreasonable rent.

Renewable electricity and refined coal production credit, Renewable electricity and refined coal production credit (Form 8835).

Rent expense, Rent Expense

Rental income, Real Estate Rents

Repayment of income, Repayment of income.

Research credit, Credit for increasing research activities (Form 6765).

Restricted property, Restricted property.

Retirement plans, Pension Plans

S

Salaries, Employees' Pay

Sale of a business, Sale of a business.

Sales of assets, Introduction

Sales tax, Sales tax.

Sample returns, 10. Sample Returns

Schedule C, How Do I File?

Schedule C-EZ, How Do I File?

Section 179 deduction, Section 179 deduction.

Self-employed health insurance deduction, Self-employed health insurance deduction.

Self-employment tax:

About, Self-Employment Tax

Deduction for, Self-employment tax.

Tax rate, SE tax rate.

Time limit for posting income, The Social Security Administration (SSA) time limit for posting self-employment income.

Short-term capital gain or loss, Is My Capital Gain or Loss Short Term or Long Term?

Small Business Administration, Small Business Administration

Social security coverage, Social security coverage.

Social security number (SSN), Social security number (SSN).

Sole proprietor, defined, Introduction

Sport utility vehicle, Section 179 deduction.

Standard mileage rate, Standard mileage rate.

Statutory employee, Introduction

Suggestions for publication, Comments and suggestions.

SUV, Section 179 deduction.

T

Tax help, Internal Revenue Service

Tax home, Local transportation expenses., Travel expenses.

Tax preparation fees, Tax preparation fees.

Tax refund:

Claim for, Refunds.

Offset against debts, Offset against debts.

Tax return:

How to file, How Do I File?

Who must file, Do I Have To File an Income Tax Return?

Tax year, Accounting Periods

Taxes:

Deduction for, Taxes

Employment, Employment Taxes, Employment taxes.

Excise, Excise Taxes, Excise taxes.

Fuel, Fuel taxes.

Income, Income Tax, Income taxes.

Paid on certain employee tips, Credit for employee social security and medicare taxes paid on certain employee tips (Form 8846).

Personal property, Personal property tax.

Real estate, Real estate taxes.

Sales, Sales tax.

Self-employment, Self-Employment Tax, Self-employment tax.

Taxpayer Advocate, Contacting your Taxpayer Advocate.

Taxpayer rights, Declaration of Taxpayer Rights

Tolls, Parking fees and tolls.

Trade discount, Trade discounts., Trade discounts.

Transportation expenses, Local transportation expenses.

Travel expenses, Travel expenses.

Truck expenses, Car and Truck Expenses, Methods for Deducting Car and Truck Expenses

TTY/TDD information, Internal Revenue Service

U

Underpayment of tax penalty, Penalty for underpayment of tax.

Uniform capitalization rules, Uniform Capitalization Rules

W

Wages, Employees' Pay

Welfare-to-work credit, Welfare-to-work credit (Form 8861).

Work opportunity credit, Work opportunity credit (Form 5884).