dmarconsultingllc is the best resource for accounting and consulting
Founded in 2008, DMAR Consulting LLC is a trusted accounting and business consulting firm dedicated to delivering both traditional accounting services and advanced financial reporting solutions that empower businesses to make informed decisions.
2026 Tax Due dates!
Individual Income Tax Deadlines
For most taxpayers, Tax Day is April 15, 2026. This is the deadline to file your 2025 federal income tax return (Form 1040) and to pay any taxes owed. Even if you request an extension, payment is still due by this date to avoid penalties and interest. Tax due date for extensions October 15, 2026.
Estimated Tax Payment Dates – Self Employed
- April 15, 2026
- June 15, 2026
- September 15, 2026
- January 15, 2027 (final payment for the 2026 tax year).
Business Tax Deadlines
Business filing deadlines vary by entity type:
May 15, 2026 – Tax‑exempt organizations (Form 990).
March 16, 2026 – Partnerships and S corporations (Forms 1065 and 1120‑S)
April 15, 2026 – C corporations (Form 1120) and estates and trusts (Form 1041)
Same due dates for State of Illinois.
Small Business Tax Changes for 2026
1. Qualified Business Income (QBI) Deduction Made Permanent-20% Qualified Business Income (QBI) deduction under Section 199A
2. 100% Bonus Depreciation Restored Permanently-fully expense the cost of qualifying equipment, machinery, computers, furniture, and certain improvements in the year assets are placed in service
3. Higher Section 179 Expensing Limits- Maximum expensing limit rises to $2.5 million. Phase‑out threshold begins at approximately $4 million
4. New 1099 Reporting Thresholds- 1099‑NEC reporting threshold rises from $600 to $2,000 1099‑K thresholds revert to $20,000 and 200 transactions. Due 2/3/2026.
5. IRS Mileage Rate Increase for 2026 – business mileage rate to 72.5 cents per mile for 2026
6. Standard deduction – $16,100 (single) and $32,200 (married filing jointly)
More Bookkeeping Errors Are Showing Up in Fraud and Criminal Cases
IRS Criminal Investigation press releases in early 2026 show a noticeable pattern: many fraud and embezzlement cases trace back to poor or unchecked bookkeeping practices, not sophisticated schemes. [irs.gov]
News coverage highlights:
- Lack of segregation of duties
- No regular reconciliations
- Overreliance on a single trusted bookkeeper
- No independent review
These cases are reinforcing a message regulators and insurers are repeating: good bookkeeping is a risk‑management function, not just an administrative one or bookkeeping controls as a red flag, even for small businesses.
DMAR Consulting will always keep you audit ready.