Minnesota Employer Payroll — MN Withholding, UI, ESST & Paid Leave

Confirm the employer is properly registered with both the Minnesota DOR (7-digit Minnesota Tax ID for withholding) and DEED (UI account number at uimn.org). Identify industry (critical for the construction-industry classification regime and new-employer UI rate), employee headcount, and whether the employer is monthly or quarterly deposit frequency. Establish whether any employees live in North Dakota (Form MWR reciprocity) or are exempt claimants who need a W-4MN submitted to DOR.

Collect and validate Form W-4MN for every Minnesota employee. Since the IRS redesigned federal Form W-4 in 2020 (removing the allowance concept), a separate W-4MN is mandatory for all employees in order to apply Minnesota's allowance-based withholding tables. Identify any employees claiming more than 10 allowances or exempt status earning over $200/week — those W-4MNs must be submitted to the DOR within 30 days. Flag February 15 expiration of exempt claims.

Run each payroll period applying Minnesota's four-bracket graduated withholding tables (5.35% / 6.80% / 7.85% / 9.85%) from the annual DOR Minnesota Withholding Tax Tables booklet, or the flat 6.25% supplemental rate for separately-identified supplemental wages. Verify every pay statement satisfies the Minnesota Wage Theft Prevention Act (§181.032): hours worked, itemized deductions, ESST hours accrued/used/balance, and employer contact information. Issue compliant written notice at hire.

Maintain Earned Sick and Safe Time records per §181.9445–§181.9448 (effective January 1, 2024). Every employee accrues 1 hour of ESST per 30 hours worked, capped at 48 hours accrued per year and 80 hours total balance, with carryover. Employers using unlimited-PTO arrangements must retrofit a separate ESST tracking bucket. Employers in Minneapolis or Saint Paul must layer local-ordinance compliance on top of the state floor. Records must be retained three years and be available for DLI inspection.

File the quarterly Minnesota withholding reconciliation return through DOR e-Services and the DEED UI quarterly return (with employee-level wage detail including hours worked) through the DEED UI portal. Both are due April 30 / July 31 / October 31 / January 31. UI taxable wages are capped at $43,000 per employee; Paid Leave premium (starting Q1 2026, 0.88% of wages up to the Social Security wage base) is also remitted quarterly through the DEED portal. A nil-quarter withholding return is required even when no wages were paid.

Prepare and file W-2s and the Minnesota W-3M annual reconciliation through DOR e-Services by January 31. Run the three-way reconciliation worksheet: (a) sum of four quarterly MWR returns = (b) W-3M total = (c) sum of box 17 across all W-2s. A variance of even $1 triggers an automated DOR notice and credit-hold. E-filing is mandatory for employers issuing 10 or more information returns. Also capture any 1099-NEC / 1099-R that report Minnesota withholding in box 17.

For any worker paid on a 1099 basis, apply Minnesota's general nine-factor test (UI / withholding) or, for construction industry engagements, the stricter §181.723 multi-element test. Construction-industry independent contractors must hold a current DLI registration — verify this before engagement. Document classification findings in the engagement file. Misclassification exposes the employer to retroactive UI contributions (4-year lookback at up to 9.0% × $43,000 wage base), retroactive withholding liability, §181.722 penalties, and — in construction — treble damages.