Arizona Pass-Through Entity Tax (PTET)
Arizona's PTET regime is one of the 37+ state workarounds to the federal SALT cap (IRC §164(b)(6)). The election is annual, statute-pinned below, and interacts with composite filing and §199A QBI in state-specific ways.
- State DOR portal
- https://azdor.gov/forms/corporate-tax-forms/corporate-and-pass-through-entity-estimated-tax-payment
- Election deadline
- [PLACEHOLDER: state DOR cite] — Pub 713 should be re-fetched to pin precise 2026 election deadline.
- Election form
- Form 165 PTE (Arizona Partnership Income Tax Return with PTE election); Form 120S for S corps
- Entity-level rate
- 2.50% — 2.5% for tax year 2025 (flat AZ individual rate per § 43-1011). 2026 rate assumed to remain 2.5% absent legislative change; verify with azdor.gov before publication.
- Eligible entities
- s-corp, partnership, llc-as-s, llc-as-partnership
- Owner credit
- refundable — [PLACEHOLDER: state DOR cite] — Form 355 (Credit for Entity-Level Income Tax Paid) referenced but credit type not pinned.
- Composite interaction
- stacks
- §199A QBI base reduction
- Yes — Reduces federal flow-through income (Notice 2020-75).
- Last verified
- 2026-05-11
Source: azdor.gov Pub 713 + 2025 120PTE-W instructions. Multiple specifics flagged as PLACEHOLDER pending deeper fetch.
Reference computation
For a Arizona pass-through entity with $500,000 of qualified net income allocated to this state, at a 37% federal marginal bracket, the entity-level PTET and federal-deduction math is:
At a 37% federal bracket, the entity-level deduction saves $4,625 in federal tax. Net of §199A QBI offset (~20% × bracket × entity tax = $925), aggregate benefit is approximately $3,700.
Election walkthrough
- Verify eligibility. Arizona accepts: s-corp, partnership, llc-as-s, llc-as-partnership.
- Check the deadline. [PLACEHOLDER: state DOR cite] — Pub 713 should be re-fetched to pin precise 2026 election deadline. Entities with prior-year AZ taxable income exceeding $150,000 must make estimated payments (Form 120/PTE-W).
- Compute the entity-level tax. Apply the 2.50% rate to qualified net income.
- Pay and file. Use Form 165 PTE (Arizona Partnership Income Tax Return with PTE election); Form 120S for S corps. Quarterly estimates may be required.
- Owners claim the state credit. refundable credit on the personal state return.
- Verify composite interaction. Composite interaction: stacks. See composite vs PTET.
- Run the federal §199A QBI math. PTET reduces the QBI base proportionally; net the federal SALT-arbitrage against the §199A offset.
Arizona PTET — common questions
State PTET law revises annually. Arizona's data was last verified on 2026-05-11. Re-confirm with the state DOR primary source before electing or filing. Last full-site review: 2026-05-12.