Overview

Commuters who live in one state and work in another often face overlapping state-tax rules. A state reciprocity agreement (also called a reciprocity or nonresident withholding agreement) prevents double taxation on wages by allowing your home state to tax your paycheck instead of the state where you work. That simplifies payroll withholding and annual filings — but only if both states have an agreement and you follow the required steps.

How reciprocity typically works

  • Employee certification: To get reciprocal treatment, employees usually complete a certificate or withholding exemption form for the employer in the work state (often called a Certificate of Nonresidency or similar). Once the employer has the certificate, they generally stop withholding the work state’s income tax.
  • Employer role: Employers must accept valid certificates and update payroll withholding. If they don’t, you may have state tax withheld and will need to claim a refund or credit.
  • Home-state reporting: Even with reciprocity, you must report all wages to your state of residence and pay that state any tax due. Reciprocity does not change your federal filing responsibilities.

Common examples and caveats

  • Well-known reciprocity pairs include Maryland–Virginia, Illinois–Indiana, and Ohio–Kentucky. Some neighboring states (for example, New Jersey and Pennsylvania) also have arrangements in some cases — but these vary and change. Always confirm with your state revenue office.
  • Remote work and telecommuting: Rules tightened after 2020 as more people worked from home. Some states apply withholding based on where the work physically occurs, not the employer’s location, which can affect reciprocity. Check state guidance for remote or hybrid work.

Check before you rely on reciprocity

  1. Confirm both states: Visit your home state and work state revenue departments to verify whether a reciprocity agreement exists and what forms are required. (See Tax Foundation for summaries of state differences and links to state pages.)
  2. Ask payroll early: Provide the required certificate to your employer as soon as you start the job or as soon as your residency or work location changes.
  3. Keep copies: Save submitted forms and paystubs showing withholding; they’re valuable if you need a refund or if an audit arises.

Steps if you had withholding in both states

  • File a nonresident return in the work state to claim a refund if withholding occurred there and reciprocity should have applied.
  • Report the full wage amount on your resident return and claim any credit your state allows for taxes paid to other jurisdictions if no reciprocity exists.
  • If you’re uncertain or the amounts are large, contact a CPA or state tax office for help.

Practical tips for commuters

  • File the certificate promptly: Delays mean unnecessary withholding.
  • Watch for state-specific deadlines and renewal requirements; some states require periodic re-certification.
  • Document remote days: If you telecommute from your home state, keep a log of work days in each state to support your withholding position.

Common mistakes

  • Assuming reciprocity exists just because two states are neighbors.
  • Forgetting to file required certificates with employers, which leads to withholding by the work state.
  • Ignoring telework rules that may change withholding even with a reciprocity agreement.

Helpful resources and internal links

Authoritative sources

  • Tax Foundation — state tax research and summaries (taxfoundation.org)
  • Your state revenue department’s website — for current forms and procedures
  • IRS — for federal filing rules (irs.gov)

Professional disclaimer

This article is educational and does not constitute personalized tax advice. State rules change; consult a CPA or your state revenue department for guidance on your specific situation.