#tax-filing
Tax filing procedures, deadlines, and best practices
The IRS retires the FIRE e-filing system on December 31, 2026, requiring all 1099 and W-2 filers to switch to IRIS for tax year 2026 returns, and a new Transmitter Control Code alone can take 45 or more days to approve.
For tax year 2026, the 1099-NEC reporting threshold rises from $600 to $2,000 and the IRS replaces FIRE with the IRIS portal. A practical workflow for W-9 collection, TIN matching, backup withholding, e-filing, and avoiding per-form penalties that stack under §6721 and §6722.
Box 7 of Form 1099-R holds a one- or two-character code that decides whether a retirement distribution is taxable, penalty-free, or hit with a 10% early-withdrawal penalty. This guide explains every numeric and letter code, including the new Code Y for qualified charitable distributions, and the coding errors that overcharge taxpayers.
Form 1310 is the IRS form survivors use to claim a deceased taxpayer's refund. This guide explains who must file, the three Part I claimant boxes, the documents to attach (and the one to keep), and how to avoid the 6–12 month delays that trap most paper filers.
For the 2026 tax year the Form 1099-K threshold reverted to $20,000 and more than 200 transactions, but you must still report all income whether or not a form arrives. This guide explains who gets a 1099-K, how to reconcile Box 1a from gross to taxable income, and where the numbers go on Schedule C or Schedule 1.
A practical breakdown of Form 4506-T, Form 4506-C, Form 8821, and the five IRS transcript types — what mortgage and SBA lenders need before first disbursement, and how borrowers can avoid identity holds, name mismatches, and no-record errors that stall closings.
Form 8865 makes U.S. persons report controlled foreign partnerships, property contributions, and 10-percentage-point interest changes. Missing it triggers $10,000 per partnership per year, plus a 10% foreign tax credit haircut and stacking 30-day penalties up to $50,000.
The federal $7,500 clean vehicle credit ended September 30, 2025 under the OBBBA—seven years early. Section 30D's binding contract exception, dealer transfer recapture risk, Form 8936 filing for 2025 acquirers, state replacement programs, and what 2026 EV buyers should expect.
The AOTC is worth up to $2,500 per student with $1,000 refundable; the Lifetime Learning Credit caps at $2,000 per return. A 2026 walkthrough of Form 8863 and Form 1098-T covering when each credit wins, the Pell Grant election that unlocks the refundable AOTC, how to coordinate a 529 plan, and the four mistakes that can trigger a 2-to-10-year IRS ban.
Form 2290 funds federal highway maintenance through an annual excise tax on vehicles with a taxable gross weight of 55,000 pounds or more. Owner-operators and fleets owe up to $550 per truck and must file by August 31 — late filings trigger a 4.5% monthly penalty and DMV registration suspension.
How non-willful US taxpayers use the IRS Streamlined Filing Compliance Procedures to catch up on FBAR, Form 8938, and three years of late returns—zero penalty under SFOP for taxpayers abroad, a one-time 5% miscellaneous offshore penalty under SDOP for domestic filers, plus what the non-willfulness certification must demonstrate.
Nonprofits with gross receipts of $50,000 or less file Form 990-N; those under $200,000 receipts and $500,000 assets file 990-EZ; everyone else files the full 990. This guide covers thresholds, deadlines, late penalties up to $120 per day, and the three-year automatic revocation rule that quietly strips exempt status.
