Year-end payroll compliance in Dayforce is where configuration debt comes due. Tax table updates that weren't applied, W-2 box mappings that haven't been verified, ACA measurement periods that weren't set up correctly — all of it surfaces in November and December when there's the least room for error. This Dayforce year-end payroll compliance checklist covers the tasks mid-market HR and payroll teams need to work through before the calendar flips, organized by the order they need to happen.
This checklist assumes you're running payroll in Dayforce and managing your own W-2 and ACA reporting — the most common setup for mid-market companies that went live on Dayforce in the last two to four years. If you're using a third-party payroll bureau for tax filing, the configuration and verification steps still apply; you'll just coordinate the output file delivery instead of filing directly from Dayforce.
Dayforce year-end compliance: start in October, not December
The single most preventable year-end failure is starting too late. By the time December arrives, you're in a parallel payroll run window and making changes to live payroll data under time pressure. The configuration verification and correction work should happen in October — before you're in the operational crunch.
Here's the sequencing that works:
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October: Tax table verification, W-2 box mapping audit, ACA measurement period review, balance verification sweep
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November: Test W-2 and ACA extracts against prior year, identify discrepancies, correct data issues
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December: Final payroll runs, year-end tax filing configuration locked, employee communication about W-2 delivery
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January: W-2s distributed (by January 31 deadline), ACA 1095-C forms prepared, IRS filing
What follows is the specific configuration and verification work within that framework.
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Talk to our team →Tax table and rate verification
Dayforce releases annual tax updates, but they require activation — they don't apply automatically to your tenant. Before year-end, verify that:
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The current-year federal and state tax tables are active in Dayforce HCM → Payroll → Tax Tables
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State unemployment insurance (SUI) rates for each state where you have employees have been updated to reflect any rate changes from your state's annual notice
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Local tax rates (if applicable) are current — these are the most commonly missed updates because they often arrive as separate notices rather than part of a standard Dayforce release
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FICA limits for the current year reflect the updated Social Security wage base (announced each October for the following year)
SUI rate updates are the most common gap. States issue updated rates in late Q3 or Q4, and they require a manual update in Dayforce — they're not pulled from a centralized tax service automatically. If you have employees in multiple states, run the SUI rate audit first.
W-2 box mapping audit
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