State Income Tax: The Invisible Half of Your 1099 Tax Bill

Most 1099 contractors focus on federal taxes — self-employment tax and federal income tax — and forget about state income tax until it's too late. Depending on where you live, state tax can add 2-15% to your effective tax rate. For contractors earning $100,000, the state tax difference between Texas (0%) and California (top bracket 14.7%) is over $14,000 annually. Here's what every 1099 worker needs to know for 2026.

Three Categories of States for 1099 Contractors

For tax purposes, states fall into three buckets that dramatically affect your 1099 bottom line:

Category 1: No Income Tax (9 states)

StateNotes for 1099 Contractors
AlaskaNo state tax, no sales tax on most goods. Very contractor-friendly.
FloridaNo income tax, 6% sales tax. Popular with remote contractors.
NevadaNo income tax, 87% of commerce has no sales tax. Minimal business fees.
New HampshireOnly taxes interest and dividends. Business profits may be subject to BPT if $100K+.
South DakotaNo income tax, no state estate tax. Very simple filing.
TennesseeNo wage or business income tax. Sales tax is 7-9.75%.
TexasNo income tax. Franchise tax applies to LLCs/corps with revenue over $1.2M.
WashingtonNo income tax. Business & occupation (B&O) tax applies to gross receipts for some structures.
WyomingNo income tax, no state estate tax. No annual report fees for sole props.

Category 2: Flat Tax (2 states)

  • Colorado: 4.4% flat on all income over $87,000 (2026) for single, $174,000 for married
  • Arizona: 2.5% flat on all taxable income (reduced from 4.5% in 2023, phased down by 0.5% each year until reaching 2.5%)

Category 3: Progressive Tax (39 states + DC)

These states have multiple tax brackets with rising rates. The top rates range from 3.0% (Pennsylvania) to 14.7% (California). For 1099 contractors, the important number is the rate at your income level, not just the top bracket.

Top 5 Highest-Tax States for 1099 Contractors

If you're a 1099 contractor earning $100,000 net profit, here's what state tax alone looks like in the five highest-tax states for 2026:

  • California: Approximately $6,878 in state tax (effective rate ~6.9%)
  • New York: Approximately $6,100 in state tax (effective rate ~6.1%)
  • Oregon: Approximately $5,760 in state tax (effective rate ~5.8%)
  • Minnesota: Approximately $5,560 in state tax (effective rate ~5.6%)
  • Hawaii: Approximately $5,400 in state tax (effective rate ~5.4%)

Compare this to Texas, where the state tax on $100,000 is $0. That's a $6,000+ annual difference that compounds over a career.

IRS Warning: California requires 1099 contractors to make quarterly state estimated tax payments if they expect to owe $500 or more. The deadlines match federal deadlines: April 15, June 15, September 15, and January 15 (for the prior tax year). Penalties for underpayment are 5% of the underpayment per month, up to 25%.

Key State Tax Rules Every 1099 Contractor Should Know

State Standard Deductions Vary Widely: For 2026, California's standard deduction is $5,636 for single, $11,272 for married. New York's is $8,000 for single, $16,000 for married. These are much lower than the federal standard deduction of $15,750 / $31,500, meaning more of your income is subject to state tax than federal tax.

Nexus Rules for Remote Workers: If you live in a state with income tax but work remotely for clients in other states, you generally only pay tax to your resident state. The key exception: if you physically work in another state for more than the state's threshold (typically 14-183 days), you may owe tax to that state as well. For 2026, the temporary relief for remote workers established during COVID has expired in most states.

State Business Registration: Many states require you to register your 1099 business if you're operating under a name other than your own (DBA) or if you form an LLC. Registration fees range from $10 (Texas) to $800 (California for LLCs).

Pro Tip: If you're considering a move for tax purposes, look at more than just the income tax rate. Washington has no income tax but imposes a Business & Occupation (B&O) tax on gross receipts for certain business structures. Texas has no income tax but requires LLCs to pay a minimum franchise tax of $0 (if revenue under $1.2M) or up to several hundred dollars. Use our 1099 tax estimator with different state settings to compare your after-tax income across states.

State Tax Filing Deadlines for 2026

Most states align their tax filing deadlines with the federal deadline (April 15). However, some states have different dates:

  • Iowa: May 1 (or next business day if May 1 falls on a weekend)
  • Louisiana: May 15
  • Virginia: May 1 (extended to November 1 if disaster relief applies)

Always verify your state's specific deadline — late filing penalties can be as high as 25% of the tax owed.

For a complete picture of your combined federal and state tax liability, use our 1099 tax estimator. It includes state tax calculations for all 50 states with verified 2026 rates and brackets.