Tax Write-Off: A Guide for Individuals and Small Businesses

One of the most powerful tools available to individuals and businesses to legally reduce their taxable income is the tax write-off.

Often misunderstood or underutilized, tax write-offs, also called deductions, can significantly impact how much you pay the government each year.

At its core, a tax write-off is an expense or amount you can subtract from your total income before calculating the taxes you owe. The lower your taxable income, the lower your tax liability. For individuals, that might include mortgage interest, student loan payments, or charitable donations. For business owners, it could be office rent, equipment, travel, or even a portion of your phone bill, if it’s used for business purposes.

In this guide, we break down what tax write-offs really are, how they work, and why they matter.

What Is a Tax Write-Off?

A tax write-off is an expense that you can legally subtract from your total income to reduce how much of that income is subject to tax.

In simpler words, it lowers your taxable income, which in turn reduces the amount of taxes you owe.

These are often referred to as tax deductions, and they’re one of the most common ways individuals and businesses reduce their overall tax burden.

According to the IRS, tax deductions (write-offs) are amounts that taxpayers can subtract from gross income in order to arrive at the amount of income that is actually taxable. By reducing taxable income, deductions help lower the total tax liability.

Difference Between Tax Deductions, Credits, and Write-Offs

While the terms are often used interchangeably, there’s a key difference between write-offs (deductions) and tax credits:

A tax deduction (or write-off) reduces your taxable income. For example, if you earn $60,000 and claim $10,000 in deductions, you’re only taxed on $50,000.

A tax credit, on the other hand, directly reduces the amount of tax you owe. So if your total tax due is $3,000 and you have a $500 credit, you only pay $2,500.

Examples of Tax Write-Offs

Tax write-offs come in many forms and can apply to both individuals and businesses.

For individuals, it can mean:

• Homeowners can deduct interest paid on qualifying home loans, reducing taxable income.
• Up to $2,500 of interest paid on student loans can be deducted, subject to income limits.
• Donations to qualifying charities can be written off if you itemize deductions.
• Out-of-pocket medical expenses that exceed a certain percentage of your income may be deductible.
• Up to $10,000 in combined state and local income, property, and sales taxes can be deducted.

For businesses, it can mean:

• If you’re renting a space for your business, those expenses are deductible.
• Flights, hotels, and 50% of qualifying meal costs can be written off when related to business.
• If you use a portion of your home exclusively for business, a percentage of your home expenses (like internet, electricity, rent/mortgage interest) may be deducted.
• Subscriptions, apps, and digital services essential to your business can qualify.
• Fees paid to accountants, consultants, or attorneys are deductible as business expenses.

Types of Tax Write-Offs 

Some are designed to reduce your taxable income as an individual, while others are available to business owners to reflect the costs of running a company.

Common Tax Write-Offs for Individuals

As an individual taxpayer, you typically have two options when it comes to deductions:

A. Standard Deduction

A fixed amount that reduces your taxable income. For 2024, it’s $14,600 for single filers, $29,200 for married couples filing jointly, and $21,900 for heads of household. You don’t need to list individual expenses to claim this.

B. Itemized Deductions

A list of eligible expenses you can claim instead of the standard deduction, but only if their total exceeds the standard deduction amount.

1. Mortgage Interest

If you itemize, you can deduct interest paid on up to $750,000 of mortgage debt ($1 million if the mortgage originated before Dec 15, 2017). This is one of the most valuable deductions for homeowners.

2. Medical and Dental Expenses

You can deduct unreimbursed medical expenses that exceed 7.5% of your adjusted gross income (AGI). This includes surgeries, dental treatments, mental health care, and some travel for medical care.

3. State and Local Taxes (SALT)

You can deduct up to $10,000 in a combination of state income taxes or sales taxes, and property taxes. This cap applies whether you’re single or married.

4. Charitable Contributions

Cash donations to qualified nonprofits are deductible, as are donations of goods, but proper documentation is required. The limit is generally 60% of your AGI for cash gifts.

5. Student Loan Interest

You can deduct up to $2,500 in interest on qualified student loans, even if you don’t itemize, subject to income limitations.

Common Tax Write-Offs for Small Businesses

1. Car and Truck Expenses

• If you use a vehicle for business purposes, you can deduct either the actual expenses (gas, maintenance, insurance) or use the standard mileage rate (67 cents per mile for 2024).

2. Home Office Deduction

• If you use part of your home exclusively and regularly for business, you may deduct a portion of your rent or mortgage, utilities, and maintenance.
• You can use either the simplified method or the actual expense method.

3. Contract Labor

• Payments made to freelancers, consultants, or independent contractors are fully deductible.
• Just make sure you issue Form 1099-NEC if you pay $600 or more to a contractor in a year.

4. Business Meals

• You can deduct 50% of the cost of business-related meals with clients, prospects, or employees, as long as the meal isn’t lavish and is directly related to your business activities.

5. Business Insurance Premiums

• Insurance for liability, property, workers’ comp, and even cyber liability is deductible as a necessary business expense.

6. Office Supplies and Equipment

• Paper, pens, software, computers, printers, all of it qualifies as a deductible expense if used for business. Larger items may need to be depreciated over time.

7. Advertising and Marketing

• From Facebook ads to printed flyers to your website domain, if it helps promote your business, it’s likely deductible.

8. Rent or Lease Payments

• If you lease a business space, office, or equipment, those payments are deductible in full.

9. Salaries and Wages

• The wages you pay to employees, including bonuses, are deductible, as long as they’re reasonable and for actual work performed.

10. Utilities

• Electricity, water, phone, and internet services used for business purposes are all valid deductions.

How Do Tax Write-Offs Work?

When you earn money, the government doesn’t tax your entire income. Instead, you’re allowed to subtract certain qualifying expenses, called deductions or write-offs, from your total income. The result is your taxable income.

Once your taxable income is calculated, the tax authority applies the applicable tax rates to it. The lower your taxable income, the lower your tax liability.

Let’s say you’re a freelance graphic designer who made $80,000 this year. You kept good records and claimed these business deductions:

And that’s just the federal impact. State tax savings could add more.

For businesses, write-offs can mean the difference between reinvesting profits or handing them over in taxes. For individuals, it might mean qualifying for a lower tax bracket or a bigger refund.

How to Claim Tax Write-Offs

The IRS expects you to keep thorough records and backup every deduction you claim. If done correctly, write-offs can significantly reduce your tax liability without causing compliance issues.

1. Documentation and Record-Keeping Essentials

According to IRS Publication 463 (Pages 36–42), proper recordkeeping is not optional; it’s required. The IRS recommends keeping records that show:

• What you bought or paid for
• When the expense occurred
• Why was the expense business-related
• Who was involved (if applicable)
• Proof of payment (like receipts, canceled checks, or credit card statements)

Keep track of the following diligently:

The IRS generally recommends keeping tax-related records for at least three years, but some situations (like claiming depreciation) may require up to seven years.

2. IRS Forms and Schedules to Use

The right form depends on your filing status and whether you’re claiming personal or business deductions.

For Individuals

• Form 1040 – The main individual income tax form.
• Schedule A – Used to itemize deductions like mortgage interest, state taxes, medical expenses, and charitable contributions.
• Schedule 1 – Reports adjustments to income (like student loan interest or educator expenses).

For Freelancers/Self-Employed

• Schedule C (Form 1040) – Used to report income and deductible business expenses for sole proprietors and freelancers.
• Schedule SE – Used to calculate and report self-employment taxes (Social Security and Medicare).

For Employers/Businesses

• Form 1120 (Corporations) or Form 1065 (Partnerships) – For reporting business income and deductions.
• Form 4562 – For reporting depreciation and amortization of equipment, property, or large assets.
• Form 1099-NEC – For reporting payments made to independent contractors.

Bonus Tips

• Use apps like Keka, Expensify,, or Zoho Expense to scan and categorize expenses.
• Keep a separate bank account for business transactions to avoid mixing personal and business finances.
• Update your records monthly, not just during tax season. It saves time and reduces stress.
• Use tools like QuickBooks, FreshBooks, or Wave can auto-track expenses, organize receipts, and generate reports needed at tax time.

What Doesn’t Count as a Tax Write-Off?

While many expenses can help reduce your tax bill, not everything you spend money on qualifies as a deduction.

The IRS has strict guidelines, and deducting an ineligible expense can trigger audits, interest, and penalties.

Just because a cost feels business-related doesn’t mean it’s tax-deductible.

List of Non-Deductible Expenses

Manage Your Write-offs Like a Pro With Keka

As an employer, knowing which expenses qualify and how to document them properly can save your company thousands of dollars, while also keeping you on the right side of tax regulations.

But managing payroll, deductions, reimbursements, and compliance, all while running a business, is no easy feat.

That’s where Keka comes in.

Keka simplifies your financial back-office by:

• Auto-tracking payroll components tied to tax deductions
• Managing employee reimbursements and taxable benefits
• Offering detailed reports, you can hand off to your accountant or tax consultant
• Seamlessly integrating with your accounting software
• Keeping you compliant with ever-changing tax rules and deadlines