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Individual Tax Preparation

Individual Tax Returns

Comprehensive tax filing for W-2 earners, self-employed professionals, investors, and crypto traders. We handle complex income sources and maximize your deductions.

A guide by Taxstra Tax & Accounting — CPA-led tax strategy for business owners

📅 Last updated: April 2026 · Written by Bryan Martin, CPA

Income Sources & Form 1040

Understanding all types of income that must be reported

Form 1040 (U.S. Individual Income Tax Return) is the universal tax return for U.S. citizens and residents. Whether you earn W-2 wages, self-employment income, investment income, or cryptocurrency gains, Form 1040 reports all income and calculates your total tax liability.

Form 1040 has dramatically simplified in recent years. The form itself is now one page, with additional schedules (Schedule A, Schedule B, Schedule C, Schedule D) used for detailed income and deduction reporting. Most taxpayers file 1040 + Schedule A (itemized deductions) and Schedule 1 (other income).

Key Insight
All Income Must Be Reported: The IRS receives information documents (W-2s, 1099s, K-1s, 1099-DIV, 1099-INT) directly from payers. If you do not report income that appears on these forms, the IRS automatically sends a notice. The best practice is to report all income proactively, even before receiving forms. This demonstrates good faith and minimizes audit risk.

Form 1040 reports income in several categories:

  • W-2 wages: Reported on lines 1-7 of Form 1040. This is straightforward—your employer withheld taxes and issued a W-2.
  • Interest and dividend income: Reported on Schedule B. You receive 1099-INT and 1099-DIV forms from brokers and banks.
  • Capital gains/losses: Reported on Schedule D. Long-term gains (assets held 12+ months) receive preferential tax rates.
  • Qualified business income (QBI): Pass-through income from S-Corps, partnerships, LLCs, sole proprietorships. Generates a 20% deduction on Form 8949.
  • Passive activity income/losses: Rental income from real estate or passive partnership interests. Subject to passive activity loss limitations.
  • Other income: Gambling winnings, alimony received, unemployment compensation, prizes. Reported on Schedule 1.
Watch Out
Form 1040 requires reporting gross income, even before deducting expenses. Many self-employed individuals incorrectly report only "net" income on Form 1040. Correct reporting shows gross business income on Schedule C, then deducts expenses to calculate net income.

After reporting all income and applying deductions, Form 1040 calculates your tax liability using IRS tax tables. Your employer's withholding and quarterly estimated taxes are credited. If withholding exceeds tax, you receive a refund. If tax exceeds withholding, you owe the difference.

W-2 vs. 1099 Income

Key differences in taxation and reporting

The distinction between W-2 (employment) and 1099 (self-employment) income is foundational to tax planning. W-2 income is earned through employment relationships where an employer withholds taxes. 1099 income is earned through independent contractor relationships where you manage your own taxes.

W-2 Income is reported on your employer's Form W-2. Your employer withholds federal income tax, Social Security tax (6.2% to a $168,600 cap), and Medicare tax (1.45%, plus 0.9% above $200,000). These withholdings are credited against your final tax liability. If withholding is insufficient, you may owe at tax time. If excessive, you receive a refund.

The advantage of W-2 income is automatic withholding eliminates surprise tax bills. The disadvantage is you cannot deduct business expenses. If you spend $20,000 on professional development, equipment, or home office, you cannot deduct these amounts if you are a W-2 employee.

Key Insight
W-2 Wage Earners with High Deductions: If you are a W-2 employee with significant education expenses, professional licensing, or business supplies, itemizing deductions (Schedule A) may exceed the standard deduction ($14,600 single, $29,200 married in 2026). Itemize if mortgage interest + state/local taxes + charitable contributions + business-related expenses exceed standard deduction.

1099 Self-Employment Income is reported on Schedule C (Profit or Loss from Business) attached to Form 1040. Unlike W-2 income, you deduct all business expenses: office supplies, equipment, travel, professional services, vehicle expenses, home office depreciation, and more. After deducting expenses, your "net profit" is reported on Form 1040.

The critical difference: 1099 income subjects you to self-employment tax (~15.3%) on net profits. This tax funds Social Security and Medicare and is your responsibility alone—no employer contribution. For a $100,000 net profit, self-employment tax is approximately $14,130. W-2 employees at the same income pay Social Security tax only up to $168,600 ($10,449 maximum).

Watch Out
Self-employed individuals must pay quarterly estimated taxes (April 15, June 15, Sept 15, Jan 15) if expected annual tax exceeds $1,000. Failing to pay estimated taxes triggers IRS penalties and interest, compounded quarterly. We calculate and track quarterly estimates for all 1099 income earners.

Additionally, 1099 self-employed individuals can establish solo 401(k)s or SEP IRAs, contributing up to $69,000 (2024) in pre-tax dollars, compared to W-2 employee limits of $23,500. This deferred compensation strategy is critical for high-income self-employed individuals.

Taxstra CPA Tip
If you are a consultant or freelancer earning 1099 income, establish a separate business entity (LLC or S-Corp) and maintain meticulous expense records. We help all 1099 clients implement accounting systems and quarterly tax planning to maximize deductions while minimizing audit risk.

Investment Income & Cryptocurrency

Navigating complex capital gains and digital assets

Investment income includes dividends, interest, and capital gains from buying and selling stocks, bonds, mutual funds, real estate, and other assets. The tax treatment depends on whether gains are short-term (taxed as ordinary income) or long-term (taxed at preferential rates).

Capital Gains Basics: Capital gain is the difference between your "basis" (what you paid) and "proceeds" (what you received). If you purchase a stock for $10,000 and sell for $15,000, your capital gain is $5,000. This $5,000 is subject to tax. If you sell for $8,000, your capital loss is $2,000, which offsets other gains or up to $3,000 of ordinary income.

Income TypeForm/ScheduleTax RateSelf-Employment TaxWithholding Available
W-2 WagesForm 1040 + W-2Ordinary (10%-37%)No (withheld by employer)Yes, automatic
1099 Self-EmploymentForm 1040 + Schedule COrdinary (10%-37%)Yes (~15.3%)No (quarterly estimates)
Dividend IncomeForm 1040 + Schedule BQualified (0%-20%)NoNo (reported after receipt)
Long-Term Capital GainsForm 1040 + Schedule DLong-term (0%-20%)NoNo
Cryptocurrency GainsForm 8949 + Schedule DOrdinary or Long-termNoNo (1099-K if applicable)
Key Insight
Long-Term vs. Short-Term: The 12-Month Rule: Hold investments 12+ months (technically, from acquisition to sale date) to qualify as long-term capital gains. Long-term gains are taxed at preferential rates: 0% (if ordinary income is under $47,025), 15% ($47,025-$518,900), or 20% (above $518,900). Short-term gains are taxed as ordinary income (up to 37%). For a $100,000 gain, long-term taxation saves approximately $17,000-$37,000 compared to short-term.

Cryptocurrency & NFTs: The IRS treats cryptocurrency as property, not currency. Each sale, trade, or disposition (including converting to stablecoins) triggers capital gains tax. Even if you never convert to U.S. dollars, trading one crypto for another (ETH for BTC, for example) triggers taxable events.

Cryptocurrency reporting is complex because:

  • Most exchanges do not issue 1099-B forms (though this is changing)
  • Transfers between personal wallets and exchanges create tracking challenges
  • Airdrops, staking rewards, and mining income are taxable at fair market value on receipt date
  • Wash sale rules may apply to crypto trading (you cannot offset losses with repurchases within 30 days)
  • DeFi protocols and yield farming create complex income and gain/loss calculations
Watch Out
Cryptocurrency income is a common audit trigger. The IRS has prioritized crypto enforcement and cross-referenced crypto exchange records with filed tax returns. If you have crypto activity without reporting, the IRS will send notices. We recommend proactive reporting of all crypto transactions, even if incomplete records exist. Voluntary disclosure is far better than awaiting an audit notice.

We use specialized crypto tax software to track all transactions, calculate gains/losses by transaction, and generate IRS-compliant reports. We generate Form 8949 and Schedule D showing each transaction. This documentation is critical if audited.

Taxstra CPA Tip
If you are a serious crypto trader, consider electing "trader status" for tax purposes. This allows deducting trading losses against ordinary income (rather than being limited to $3,000 per year) and potentially using mark-to-market accounting. However, trader status triggers self-employment tax on trading income. We evaluate this election for active traders.

Stock Options & RSUs

Maximizing compensation from tech and startup equity

Stock options and restricted stock units (RSUs) are common equity compensation used by tech companies, startups, and established corporations. Understanding the tax treatment is critical to maximizing after-tax wealth.

Restricted Stock Units (RSUs): RSUs are promises to grant shares when vesting conditions are met (typically 4-year vesting, 1-year cliff). When RSUs vest, you receive shares and recognize taxable income equal to the fair market value of shares on vesting date. This income is reported on your W-2 as wages and subject to withholding.

Example: You receive 1,000 RSU grant. Stock price is $100 at grant, $200 at vesting. Your income is $200,000 (1,000 shares × $200 FMV). You owe income tax on $200,000 (at your marginal rate, e.g., $60,000-$80,000 federal tax). Your employer withholds ~22-37% ($44,000-$74,000) in taxes and remits to IRS. You receive net shares after withholding.

Key Insight
RSU Tax Timing Strategy: If RSUs vest when stock price is high, consider selling immediately to realize gains tax-efficiently. Alternatively, hold shares if you believe stock price will appreciate further. If stock appreciates after vesting, gains above vesting price are capital gains (taxed at preferential long-term rates if held 12+ months). Losses below vesting price can offset other capital gains.

Stock Options: Stock options come in two types: Incentive Stock Options (ISOs) and Non-Qualified Stock Options (NSOs). The tax treatment differs significantly.

NSOs (Non-Qualified Options): When you exercise NSOs, you recognize ordinary income equal to the spread (stock FMV minus exercise price) on exercise date. This income is reported on Form 3921 or 3922 (if available) and added to your W-2. When you later sell shares, you recognize capital gain/loss on the difference between exercise-adjusted basis and sale price.

ISOs (Incentive Stock Options): ISOs have preferential tax treatment IF you meet holding periods: (1) hold shares 2+ years from grant, (2) hold shares 1+ year from exercise. If you meet both, gains above exercise price are long-term capital gains (no ordinary income). If you sell before meeting holding periods, the spread on exercise is ordinary income (NSO treatment).

Watch Out
Alternative Minimum Tax (AMT) applies to ISOs. When you exercise ISOs, the spread (FMV minus exercise price) is included in AMT income, potentially triggering AMT tax if exercise spread is large. Understanding AMT is critical for high-income earners exercising significant ISO grants. We calculate AMT impact before exercising ISOs.

For both NSOs and ISOs, timing exercises and sales strategically minimizes tax. Exercise NSOs in years with lower income to reduce ordinary income impact. Hold ISOs to meet long-term capital gains treatment. If stock declines after exercise, consider holding to minimize losses or harvesting losses for capital loss offsets.

Taxstra CPA Tip
Mega-grants (e.g., $10M+ equity packages) create complex tax planning opportunities. Consider exercise timing across multiple years, election strategies, charitable donation strategies using appreciated shares, and 83(b) elections for restricted stock. We help all tech employees navigate equity compensation efficiently.

Deductions & Credits

Reducing your tax liability through legal strategies

Deductions reduce your taxable income, lowering your tax liability. The IRS allows either a "standard deduction" (one-time amount based on filing status) or "itemized deductions" (sum of qualified expenses). You choose whichever is greater.

Standard Deduction (2026):

  • Single: $14,600
  • Married Filing Jointly: $29,200
  • Head of Household: $21,900
  • Age 65+: Add $1,850 (or $2,300 if single/HOH)

Itemized Deductions exceed the standard deduction if your qualified expenses are substantial. Major itemized deductions include:

  • Mortgage Interest: Interest on mortgages up to $750,000 ($375,000 if married filing separately) is deductible. Interest on mortgages above $750,000 is not deductible.
  • State & Local Taxes (SALT): Combined state income tax, property tax, and sales tax are deductible up to $10,000 ($5,000 if married filing separately). This cap is the single largest limitation for high-income earners.
  • Charitable Contributions: Cash and appreciated asset donations to qualified charities are deductible up to 50% AGI (100% for certain donors post-2017). We help optimize timing and valuation of charitable gifts.
  • Medical Expenses: Unreimbursed medical expenses exceeding 7.5% AGI are deductible. For high-income earners, this rarely exceeds the standard deduction.
Key Insight
SALT Cap Strategy: The $10,000 SALT cap limits deductions for high-income earners in high-tax states (CA, NY, NJ, MA). Strategy: bunch SALT by pre-paying January property taxes in December, deducting 2 years of property tax in one year. This works 1 year every 2 years. We help clients time SALT deductions to maximize the annual $10,000 limit.

Tax Credits are dollar-for-dollar reductions in tax liability (unlike deductions, which reduce taxable income). Major credits include:

  • Child Tax Credit: $2,000 per child under 17. Phases out at high income levels.
  • Earned Income Tax Credit (EITC): Refundable credit for lower-income working families. Up to $3,733.
  • American Opportunity Credit: Up to $2,500 per student for higher education expenses (phased out at high income).
  • Adoption Credit: Up to $16,810 for qualified adoption expenses (2024).
  • Electric Vehicle Credit: Up to $7,500 for EV purchase (income limits and vehicle price caps apply).
Watch Out
Many credits are "refundable," meaning you can receive a refund even if you owe no tax. However, income thresholds apply—high-income earners often lose credits. Always verify eligibility before claiming credits.

Common Audit Triggers for Individuals

Know the red flags and maintain proper documentation

The IRS examines ~0.4% of individual returns, but certain characteristics increase audit risk. Understanding these triggers helps you maintain documentation and avoid aggressive positions.

High Audit Risk Categories:

  • High income: Returns with AGI exceeding $200,000 face 2-3x higher audit rates. Returns exceeding $1,000,000 face even higher rates.
  • Self-employment income: Schedule C filers are audited more frequently than W-2 employees.
  • Home office deduction: Claiming home office as business deduction (Schedule C) increases audit rates.
  • Large charitable deductions: Donations exceeding 25% of AGI are scrutinized. Non-cash donations (appreciated art, vehicles) face higher scrutiny.
  • Business loss: Reporting consecutive years of business losses without profit motive.
  • Hobby loss deduction: Claiming losses in activities that appear recreational (horse breeding, photography, real estate flipping).
  • Unreported foreign accounts: Failing to report FBAR or FATCA foreign account disclosures triggers criminal investigation.
  • Cryptocurrency/1099-K income: Unmatched crypto income (1099-K not matching reported amount) triggers matching notices.
Key Insight
The Audit Defense is Documentation: If you maintain contemporaneous records (receipts, invoices, credit card statements, mileage logs), you will win most audits. The IRS has limited authority to disallow claimed deductions if you can substantiate them. We help all clients establish documentation systems from day one, including separate bank accounts for business, receipt organization, and mileage tracking.

What Triggers an Audit Notice: You may receive IRS notices for mathematical errors, missing schedules, missing information, or lifestyle audits (IRS suspects you are underreporting income based on asset acquisition).

Taxstra CPA Tip
If you receive an audit notice, do not respond immediately without consulting a tax professional. Audit notices often contain errors that can be corrected without examination. We respond to all IRS notices on behalf of our clients, requesting supporting information or requesting Appeals conferences if disagreements exist.

Passive Activity Losses & Rental Income

Navigating limitations on real estate and passive investment losses

Passive Activity Loss (PAL) rules prevent deducting rental property losses and other passive losses against W-2 wages and active business income. This rule applies to most individuals. However, there are exceptions and strategic opportunities.

Passive Activity Definition: A passive activity is any business in which you do not materially participate. Rental real estate is presumed passive unless you are a real estate professional. Passive investment partnerships are passive.

PAL Limitation: Passive losses are only deductible against passive income. If you have $50,000 in rental losses and $20,000 in partnership passive income, you can deduct $20,000 of losses against passive income. The remaining $30,000 is suspended—carried forward indefinitely—until you have future passive income or exit the passive activity.

Key Insight
Real Estate Professional Exception: If you spend 50%+ of your working time in real estate activities and materially participate in rental properties, you can deduct all rental losses against ordinary income. This is powerful for real estate investors. We help clients document real estate professional status through time tracking and activity logs.

$25,000 Exception: Individuals with modified AGI under $100,000 can deduct up to $25,000 of passive losses against ordinary income (phased out $100k-$150k). This applies if you own rental property and have material participation (or qualify for the small investor exception).

Watch Out
Passive losses that are suspended carry forward indefinitely. When you sell the passive activity, all suspended losses are deductible in the year of sale. Plan real estate sales strategically to utilize suspended losses. We track PAL carryforwards annually and coordinate disposition timing to maximize loss deduction.

Rental income reporting includes:

  • Gross rental income (rent received, deposits, fees)
  • Deductible rental expenses (mortgage interest, property taxes, insurance, maintenance, HOA)
  • Depreciation (building, improvements, appliances)
  • Cost segregation studies (to accelerate depreciation)
Taxstra CPA Tip
If you own multiple rental properties, consider establishing a separate LLC for each property to track expenses and losses independently. This also provides liability protection. Additionally, if you employ family members as property managers, document their work and hours. We help clients structure rental properties for tax efficiency and liability protection.

Preparing Your Individual Return

Gather these documents for complete, accurate filing

To file your individual return efficiently, gather these documents before your meeting with your CPA. Complete documentation ensures accurate filing and minimizes amendments.

Wage & Income Documents:

  • All W-2s from employers (received by Jan 31)
  • All 1099-NEC or 1099-MISC for self-employment income
  • 1099-K from payment processors (Stripe, PayPal, Square, etc.)
  • K-1s from partnerships, S-Corps, or estates
  • Business P&L and balance sheet (if self-employed)

Investment Documents:

  • 1099-DIV (dividends) from brokers
  • 1099-INT (interest income) from banks and brokers
  • 1099-B (securities transactions) from brokers
  • 1099-LS (sales of partnership interests)
  • Cryptocurrency transaction reports or CSVs from exchanges
  • Stock option exercise confirmation and gain/loss statements
  • RSU vesting confirmation and withholding statements

Deduction & Credit Documents:

  • Mortgage statements (1098) showing interest paid
  • Property tax statements (for SALT deduction)
  • State income tax statements or receipts
  • Charitable donation receipts (cash and non-cash)
  • Medical expense receipts (if medical expenses exceed 7.5% AGI)
  • Education expense receipts (tuition, textbooks) for education credits
  • Dependent information (Social Security numbers, birth dates) for child tax credit

Rental Property Documents (if applicable):

  • Rental income summary (rent received)
  • Rental expense documentation (mortgage statements, insurance, maintenance, repairs)
  • Depreciation schedule from prior year
  • Property improvement documentation (capital improvements vs. repairs)
  • Days rented and days personal use summary
Watch Out
If you made large charitable donations (especially non-cash donations of art, vehicles, securities), obtain qualified appraisals and Form 8283 documentation. Non-cash donations exceeding $5,000 require qualified appraisals and Form 8283-B signed by appraiser and CPA. Improper valuation is a common audit trigger.

Once you file with Taxstra, we become your year-round tax partner. We provide:

  • Tax planning consultations for major income/life events
  • Quarterly tax estimates if you have 1099 income
  • Charitable giving strategy optimization
  • Investment income coordination and tax-loss harvesting guidance
  • Year-end tax projection and optimization

Frequently Asked Questions

W-2 (wages) are issued by employers for employees. The employer withholds income tax, Social Security, and Medicare taxes automatically. 1099 forms are issued by non-employers (clients, platforms) for independent contractor income. No taxes are withheld from 1099 income—you are responsible for paying quarterly estimated taxes yourself. 1099 income also subjects you to self-employment tax (~15.3%), while W-2 income does not.

Let's File Your Individual Return

Whether you're a W-2 earner, self-employed, crypto trader, or investor, we'll ensure accurate filing and maximize your refund or minimize what you owe.

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