Vincent Roy
Founder and editor, Quarterly1099. Independent founder of a small portfolio of personal-finance and self-employment-focused educational websites.
About
Quarterly1099 is built and maintained by Vincent Roy, an independent founder who runs a small portfolio of personal-finance and self-employment-focused educational websites. The site grew out of personal frustration: when filing 1099 income as a freelancer, none of the existing online calculators handled federal income tax, self-employment tax, state tax, and the QBI deduction together in a single integrated estimate. So this one was built to do exactly that.
Vincent is not a CPA, Enrolled Agent, or licensed tax preparer and is not licensed to provide personalized tax advice. All content on Quarterly1099 is educational, sourced directly from IRS publications and current US tax law — with citations to specific Revenue Procedures, IRS Forms, and Publications throughout. For decisions affecting your specific tax situation, consult a licensed CPA, Enrolled Agent, or your state's department of revenue.
Editorial standards
Every tax figure, threshold, bracket, and rule on this site cites a primary source: an IRS Revenue Procedure, IRS Form / Publication, Social Security Administration release, or state Department of Revenue notice. We never source from secondary outlets (other tax blogs, accounting marketing sites, AI-generated summaries) without verifying against the original document. See the full editorial policy for sourcing, update cadence, fact-checking, corrections, and AI-use practices.
Topics I write about
- Self-employment tax (SE tax) — Schedule SE math, Social Security wage base, half-SE-tax deduction
- 1099-NEC, 1099-MISC, 1099-K reporting thresholds and quarterly estimated taxes
- Schedule C deductions — home office, mileage, health insurance, retirement contributions
- QBI deduction (Section 199A), SSTB phase-outs, threshold mechanics
- Multi-state freelancer taxation, residency, and apportionment
- S-corp election timing and reasonable compensation for solo freelancers
- Solo 401(k), SEP-IRA, and Roth IRA decision frameworks for self-employed savers
- Marketplace health insurance, ACA premium tax credits, and HSA-eligible HDHPs
Methodology
The site's tax calculators are validated against IRS Schedule SE worksheet 1, IRS Form 1040 Line 16, and state-specific equivalents within $5 across the income bands tested. State tax math uses real progressive brackets from each state's Department of Revenue (CA, NY, NJ, OR, MN, HI, SC, DC, VT, WI, ME, RI, MD, KS, MO, MT, NE, NM, ND, OH, WV, CT) with flat-rate fallback for non-bracketed states. Multiple sample-input regression tests run before each deploy.
Contact
For factual corrections to bracket data or state rules, partnership inquiries, privacy and data requests, or DMCA / legal notices, reach me at info@quarterly1099.com. Responses within 5–7 business days (up to 10 during peak tax season).
Last reviewed: May 30, 2026.