Tax Resources

Essential tax tools, reference materials, and resources to help you stay organized and informed throughout the year.

Tax Rates

Tax Rates

2025 Federal Income Tax Brackets (Single Filers)

Tax Rate Taxable Income
10%Up to $11,925
12%$11,926 – $48,475
22%$48,476 – $103,350
24%$103,351 – $197,300
32%$197,301 – $250,525
35%$250,526 – $626,350
37%Over $626,350

2025 Federal Income Tax Brackets (Married Filing Jointly)

Tax Rate Taxable Income
10%Up to $23,850
12%$23,851 – $96,950
22%$96,951 – $206,700
24%$206,701 – $394,600
32%$394,601 – $501,050
35%$501,051 – $751,600
37%Over $751,600

Other Key Rates

  • Standard Deduction (2025): $15,000 (Single), $30,000 (Married Filing Jointly)
  • Capital Gains: 0%, 15%, or 20% depending on income level
  • Corporate Tax Rate: 21% (flat rate)
  • Self-Employment Tax: 15.3% (12.4% Social Security + 2.9% Medicare)
  • Colorado State Income Tax: 4.4% flat rate

Tax rates are subject to change. Contact us for the most current information for your situation.

Important Tax Due Dates

Individual Tax Dates

  • January 15 — Q4 estimated tax payment due
  • April 15 — Individual tax returns due (Form 1040); Q1 estimated payment due
  • June 15 — Q2 estimated tax payment due
  • September 15 — Q3 estimated tax payment due
  • October 15 — Extended individual returns due

Business Tax Dates

  • January 31 — W-2s and 1099s due to recipients
  • March 15 — S-Corp (1120-S) and Partnership (1065) returns due
  • April 15 — C-Corp (1120) returns due; Q1 estimated payment
  • September 15 — Extended S-Corp and Partnership returns due
  • October 15 — Extended C-Corp returns due

Other Important Dates

  • March 31 — Electronic filing deadline for 1099s and W-2s to IRS/SSA
  • April 1 — Required beginning date for first RMD (for those turning 73)
  • April 15 — Last day for prior-year IRA contributions
  • December 31 — Deadline for RMDs, charitable contributions, and tax-loss harvesting for the current year

When a due date falls on a weekend or holiday, the deadline moves to the next business day.

IRS Forms

IRS Forms & Publications

Access commonly used IRS forms and publications directly from the IRS website.

Individual Forms

  • Form 1040 — U.S. Individual Income Tax Return
  • Schedule A — Itemized Deductions
  • Schedule C — Profit or Loss from Business
  • Schedule D — Capital Gains and Losses
  • Schedule E — Supplemental Income (Rental, Royalty, S-Corp, Partnership)
  • Form 1040-ES — Estimated Tax for Individuals
  • Form 4868 — Application for Extension of Time to File

Business Forms

  • Form 1120 — U.S. Corporation Income Tax Return
  • Form 1120-S — U.S. S-Corporation Income Tax Return
  • Form 1065 — U.S. Partnership Return of Income
  • Form 940 — Employer's Annual Federal Unemployment Tax
  • Form 941 — Employer's Quarterly Federal Tax Return
  • Form W-9 — Request for Taxpayer Identification Number
  • Form 1099-NEC — Nonemployee Compensation

Need help determining which forms apply to your situation? Contact us for guidance.

Document Retention Guide

Knowing how long to keep financial and tax records is essential. Here are general guidelines for record retention.

Document Type Retention Period
Tax returns and supporting documents7 years
W-2s and 1099s7 years
Bank and brokerage statements7 years
Receipts for tax deductions7 years
Home purchase/improvement recordsAs long as you own the property + 7 years
Investment purchase recordsAs long as you own the investment + 7 years
Retirement account statementsPermanent (annual summaries)
Insurance policiesLife of policy + 3 years
Loan documentsLife of loan + 7 years
Business entity documentsPermanent
Employment tax records4 years after tax is due or paid
Pay stubsUntil reconciled with W-2

These are general guidelines. Specific situations may require longer retention periods. Consult with us for personalized advice.

Financial Tools

Financial Tools

Use these tools and calculators to help with your financial planning.

Tax Withholding Estimator

Check if you are having the right amount of tax withheld from your paycheck using the IRS withholding estimator.

Retirement Savings Calculator

Estimate how much you need to save for retirement based on your current savings, contributions, and expected returns.

Loan Amortization Calculator

Calculate monthly payments and see the full amortization schedule for business or personal loans.

Self-Employment Tax Calculator

Estimate your self-employment tax obligation including both Social Security and Medicare portions.

For personalized financial analysis and projections, contact our team. We provide detailed financial projections and forecasts tailored to your specific situation.

Frequently Asked Questions

What should I bring to my tax appointment?

Bring all W-2s, 1099s, records of other income, receipts for deductions, last year's tax return, Social Security numbers for all family members, and any correspondence from the IRS or state tax agencies.

How do I know if I need to file quarterly estimated taxes?

Generally, you must make estimated tax payments if you expect to owe $1,000 or more when you file your return and your withholding and credits will be less than 90% of your tax liability. This is common for self-employed individuals, landlords, and investors.

Should my business be an LLC, S-Corp, or C-Corp?

The best entity type depends on your specific situation, including revenue, number of owners, liability concerns, and tax implications. We analyze your circumstances to recommend the most advantageous structure.

What is the difference between a tax deduction and a tax credit?

A tax deduction reduces your taxable income (saving you money at your marginal tax rate), while a tax credit directly reduces your tax liability dollar-for-dollar. Credits are generally more valuable than deductions of the same amount.

How long does the tax preparation process take?

Simple individual returns can often be completed within a week of receiving all documents. More complex business or multi-entity returns may take 2-3 weeks. We work to balance thoroughness with timeliness.

Can you help if I receive an IRS notice?

Yes. We provide IRS representation services and can help you respond to notices, handle audits, and resolve tax disputes. Do not ignore IRS correspondence — contact us promptly so we can assist.

Financial & Tax Glossary

Adjusted Gross Income (AGI)

Your total gross income minus specific deductions (above-the-line deductions). AGI determines eligibility for many tax benefits.

Amortization

The process of spreading the cost of an intangible asset over its useful life, or paying off a loan through regular installments.

Capital Gains

The profit from the sale of an asset (stocks, real estate, etc.). Long-term gains (held over one year) are taxed at lower rates.

Depreciation

A tax deduction that allows businesses to recover the cost of certain property over time as it wears out or becomes obsolete.

FICA

Federal Insurance Contributions Act — the payroll tax that funds Social Security and Medicare (7.65% for employees, matched by employers).

Pass-Through Entity

A business structure (S-Corp, LLC, Partnership) where income passes through to the owners' individual tax returns rather than being taxed at the entity level.

Basis

The original cost of an asset for tax purposes, used to calculate capital gains or losses when the asset is sold or exchanged.

Withholding

The portion of an employee's wages that an employer deducts and sends directly to the government as prepayment of income tax.

Ready to Work With a CPA Who Knows Your Name?

Schedule a consultation with Steve Tannenbaum to discuss your tax, accounting, or advisory needs.

Schedule a Consultation or call (303) 756-5216

Contact Us

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Denver, CO 80222

(303) 756-5216
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