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#tax-deadlines

Tax Deadlines

Important tax filing deadlines and compliance dates to remember

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Filed Early and Found a Mistake? How a Superseding Return Replaces Your Original Before the Deadline

A superseding return is a complete second return filed before the deadline (including extensions) that legally replaces your original, unlike a Form 1040-X amendment filed after it. It preserves elections reserved for original returns and can stop interest and penalties — but when filed during an extension period it does not reset the three-year assessment or refund clocks, which run from the first valid return.

mike

taxtax-filingtax-deadlines

Indiana's 2026 Tax Amnesty Window Closes September 9: How to Clear Old Back Taxes Without Penalties or Interest

Indiana's Tax Amnesty 2026 runs July 15 through September 9, 2026 and waives all penalties, interest, and collection fees on DOR-administered taxes for periods ending before January 1, 2024, provided you pay in full or open a payment plan that is paid off by June 7, 2027. This guide covers the eligibility checklist (including the 2005/2015 prior-participant bar), the four-step INTIME process, five mistakes that void the waiver, and how to record the forgiven amounts in your books.

mike

taxtax-compliancetax-deadlines

SECURE 2.0 Auto-Portability and the December 31, 2026 401(k) Plan Amendment Deadline: What Small Business Sponsors Must Do Now

SECURE 2.0 Section 120 lets a departing employee's $1,000–$7,000 401(k) balance follow them into their next employer's plan through the Portability Services Network, and IRS Notice 2024-2 requires most calendar-year plans to adopt a consolidated SECURE 2.0 amendment by December 31, 2026. This guide covers how auto-portability interacts with force-out rules, what the amendment must memorialize, whether small employers should opt in, and the payroll, census and expense records to reconcile before year-end.

mike

retirement-plansemployee-benefitssmall-business

Form 4868 for Sole Proprietors in 2026: More Time to File, Not More Time to Pay

Form 4868 gives a sole proprietor an automatic six-month extension to file Form 1040 and Schedule C — moving the 2025 return deadline from April 15 to October 15, 2026 — but the tax itself was still due in April. How to estimate total liability including self-employment tax, request the extension electronically or through a designated payment, and limit the 5%-per-month failure-to-file penalty.

mike

tax-filingtax-deadlinessole-proprietorship

Pay As You Go: How Small Businesses Avoid the Estimated Tax Underpayment Penalty With Safe Harbor Rules for 2026

Hit one estimated-tax safe harbor and the IRS underpayment penalty disappears — pay 90% of this year's tax or 100% of last year's (110% if prior-year AGI topped $150,000) through timely quarterly payments. Covers the 2026 penalty rate (7% Q1/Q3, 6% Q2, compounded daily), the four due dates, and a bookkeeping system that keeps you penalty-free.

mike

taxtax-compliancetax-planning

Circular E in Plain English: What Publication 15 Tells Small Employers About Withholding, Deposits, and Forms 941 and W-2

IRS Publication 15 (Circular E) sets the rules small employers must follow on every paycheck — federal income tax withholding via the wage-bracket or percentage method, 6.2% Social Security to the annual wage base, 1.45% Medicare plus 0.9% above $200,000, EFTPS deposits on a monthly or semiweekly schedule set by the $50,000 lookback test, and Forms 941, 940, W-2 and W-3. This guide translates each rule into what to do, when it is due, and which ledger account to book it in — including the failure-to-deposit penalty ladder of 2%, 5%, 10% and 15%.

mike

payrolltax-compliancesmall-business
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