Disclaimer
The content on Quarterly1099 — including all calculators, articles, state pages, deadline guides, embedded widgets, and reference materials — is provided for general educational and informational purposes only. It is not tax advice, legal advice, accounting advice, or financial advice, and should not be relied upon as a substitute for professional consultation.
1. Estimates only — not for filing
Our quarterly tax calculator, state comparison tools, self-employment tax estimators, and all other interactive tools on this site produce estimates. Real tax liability depends on dozens of factors we cannot know about your individual situation, including but not limited to:
- Prior-year safe harbor calculations and quarterly payment history
- The exact timing of income and deductible expenses across the calendar year
- Business expenses, depreciation schedules, and Section 179 elections you may not have entered
- Retirement contributions (Solo 401(k), SEP-IRA, traditional IRA, HSA)
- Self-employed health insurance deductions and ACA premium tax credit interactions
- Alternative Minimum Tax (AMT), Additional Medicare Tax (0.9%), and Net Investment Income Tax (3.8%)
- State tax credits, local taxes, and municipal income taxes (NYC, Philadelphia, San Francisco, etc.)
- Estimated payment penalties and underpayment interest charges
- Carryforward losses, NOLs, and other multi-year adjustments
Do not file your actual tax return using only the numbers our tools produce. Use our estimates to plan, budget, and set aside funds for quarterly estimated payments — then file using complete tax preparation software (TurboTax, H&R Block, FreeTaxUSA, TaxAct) or with a licensed tax professional.
2. No professional advisory relationship
Reading articles on this site, using our calculators, subscribing to deadline reminders, contacting us via email, or any other interaction with Quarterly1099 does not create a CPA-client, attorney-client, fiduciary, or any other professional advisory relationship between you and Quarterly1099, Zoom Lifestyle LLC, or any author or contributor to this site.
We are not licensed in any U.S. state or jurisdiction to provide personalized tax, legal, accounting, or financial advice. We do not represent taxpayers before the IRS or any state taxing authority.
3. Accuracy, updates, and currency of data
We make every reasonable effort to keep tax brackets, standard deduction amounts, Social Security wage bases, mileage rates, state tax rates, and quarterly deadlines current and accurate. Source materials include IRS publications and revenue procedures, state Departments of Revenue, and Social Security Administration releases.
However, tax law changes frequently — sometimes mid-year. Recent examples include Inflation Reduction Act energy credits, OBBBA-class tax changes, state-level rate cuts (Georgia HB 463), HSA limit revisions, and IRS quarterly interest rate adjustments. We update annually in November when the IRS publishes inflation-adjusted figures for the following tax year, with mid-year updates for material changes.
Before relying on any specific number you see on this site, verify it against the official source cited on the same page. The IRS website (irs.gov) and your state's Department of Revenue are the authoritative sources.
4. State-specific limitations
Our state pages and state comparison tools use real bracket math for the eight progressive-income-tax jurisdictions where progressive brackets materially affect the result: California, New York, New Jersey, Oregon, Minnesota, Hawaii, South Carolina, and the District of Columbia. For other states with progressive brackets, we use a flat effective-rate fallback that approximates the typical taxpayer's effective rate.
Local taxes, county taxes, city taxes, school district taxes, and special assessments are not included in our estimates. If you live or work in a jurisdiction with a local income tax (New York City, San Francisco, Detroit, Philadelphia, Cleveland, Columbus, Kansas City, Wilmington, etc.) your actual total tax liability will be higher than our estimate.
Reciprocity agreements between states (e.g., Pennsylvania ↔ New Jersey, Maryland ↔ Virginia/West Virginia/Pennsylvania) are not modeled. If you live in one state and work in another, your actual filing situation may differ materially from our estimates.
5. Affiliate disclosure
Quarterly1099 participates in affiliate marketing programs. When you click a partner link on this site (Keeper Tax, Stride Health, Found, FreshBooks, QuickBooks Self-Employed, and others) and subsequently sign up for a paid product or service, we may receive a commission at no additional cost to you.
Affiliate relationships do not influence our editorial content. Calculator math, federal tax brackets, state tax rates, deadline data, and methodology are unaffected by any commercial relationship. Product recommendations are based on merit — features, user experience, pricing transparency, and how well the product serves the typical self-employed American — not on commission rates.
Where we link to a partner product, we will disclose the relationship on the page where the link appears. See our About page for a list of current partnerships.
6. Third-party content and links
Where we link to external resources (IRS publications, state DOR websites, professional licensing bodies, news outlets, software vendors, financial-services companies) we are not responsible for the content, availability, accuracy, or business practices of those external sites. Links are provided for reader convenience only.
Inclusion of an external link on this site is not an endorsement of the linked organization or its products and services.
7. No warranty
This site is provided on an "as is" and "as available" basis without warranties of any kind, either express or implied, including without limitation any implied warranties of merchantability, fitness for a particular purpose, accuracy, timeliness, or non-infringement. We do not warrant that the site will be uninterrupted, error-free, secure, or free from viruses or other harmful components, nor that any defects will be corrected.
8. Limitation of liability
To the fullest extent permitted by law, Quarterly1099, Zoom Lifestyle LLC, its owners, officers, employees, contractors, contributors, and affiliates shall not be liable for any direct, indirect, incidental, consequential, special, exemplary, or punitive damages arising out of or in connection with your use of this site or reliance on any content herein — including without limitation underpayment penalties, interest charges, audit costs, professional fees, or lost income incurred due to reliance on estimates produced by our tools or information provided in our articles.
If you are uncertain about a specific tax question, the cost of consulting a CPA or enrolled agent is typically small compared to the potential cost of an IRS penalty, interest charge, or audit. We strongly encourage professional consultation for any significant tax decision.
9. Forward-looking statements
Where our articles reference proposed legislation (federal or state) that has not yet been enacted, or anticipated tax changes that have not yet been formally announced by the IRS or relevant taxing authority, such references are clearly marked as proposals or projections. These should not be relied upon for tax planning until officially enacted.
10. Changes to this Disclaimer
We may update this Disclaimer from time to time as our site evolves or as the regulatory environment changes. The "Effective Date" at the top of this page reflects the most recent revision. Continued use of the site after material changes constitutes acceptance of the updated terms.
11. Questions
For questions about this Disclaimer, including its scope or specific limitations, contact us at info@quarterly1099.com. See also our Terms of Service, Privacy Policy, and Contact page.