Last year’s total sets the payment calendar.
The $18,000 lookback over the year to June 30 decides whether withholding leaves the account twice a week or once a quarter, so a growing payroll can move a business to semiweekly payments, and the cash forecast has to follow.
Set by Maine Revised Statutes, Title 36; MRS Rule 803; Withholding Tables for 2026 Individual Income Tax (revised August 2026) Employers withhold Maine income tax with the 2026 tables or percentage method, at 5.80%, 6.75%, and 7.15%; for single filers the top rate starts at $64,850 of annualized income. From 2026, a 2% surcharge applies above $1 million ($1.5 million for joint filers). Supplemental wages paid separately may be withheld at a flat 5%. Employers that withheld $18,000 or more from July 2024 to June 2025 pay semiweekly; others pay by the quarterly Form 941ME, due the last day of the month after each quarter.
Maine Revised Statutes, Title 36; MRS Rule 803; Withholding Tables for 2026 Individual Income Tax (revised August 2026); 2026 withholding tables, revised August 2026; surcharge for tax years beginning on or after January 1, 2026. Source Maine Revenue Services: Withholding Tables for 2026 Individual Income Tax (revised August 2026) ↗