Managed Payroll · 100 employees

At 100 employees, payroll is a department, and the only question is whether it is yours.

A hundred people means multi-state exposure is likely, benefits administration is continuous rather than annual, and payroll has enough moving parts that one person doing it part-time is a risk rather than a plan. The realistic internal build is a payroll manager, often with administrative support, at $110,000 to $160,000 loaded. BEG manages the function for $2,500 to $4,500 a month, all-inclusive.

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Managed payroll for a company with 100 employees
$2,500 to $4,500All-inclusive, at 100 employees
All 50States registered and filed
3-5 DaysTo live managed payroll

TL;DR

At 100 employees BEG runs $2,500 to $4,500 a month, all-inclusive. The internal equivalent is a payroll manager at $85,000 to $110,000 base, $110,000 to $160,000 loaded, which is $9,200 to $13,300 a month, and one person is still a single point of failure. This is the headcount where the outsourcing case stops being about cost and starts being about continuity.

What Changes At This Size

What payroll looks like at 100 employees

Companies at this size usually already have someone doing payroll and are deciding whether to promote them, backfill them, add a second person, or hand the function out entirely.

Continuity
One payroll manager is one resignation away from a crisis
At 100 employees payroll cannot pause. If the person who knows your deduction codes, your state registrations, and your benefit carrier feeds gives notice, you have roughly two weeks to transfer years of undocumented process. A managed service is a team with documented procedure, which means the function does not depend on any single person staying.
Multi-state
By 100 employees, most companies are filing in states they did not plan to
Remote hires, a satellite office, or a single relocated employee each create a withholding obligation. Registration has to happen before the first filing is due, thresholds and reciprocity rules differ, and the penalty for missing one is a state notice that arrives months later with interest attached. Tracking that is continuous work, not a one-time setup.
Benefits load
Deduction accuracy stops being simple once benefits are real
Section 125 pre-tax treatment, mid-year qualifying events, 401(k) deferral changes, COBRA triggers, and carrier feed reconciliation all land on payroll. At 100 employees these are weekly occurrences, not annual ones, and each one is a place where a wrong code becomes a W-2 correction eleven months later.

The Numbers

What each option actually costs at 100 employees

Published figures where they exist, and our own rate stated plainly. Payroll software is genuinely cheaper on the invoice. The comparison only becomes useful once the work it leaves behind is priced too.

OptionBEG managed payrollThe alternative
Monthly cost$2,500-$4,500 all-inSee each alternative
Payroll manager (loaded)$9,200-$13,300 per month
Payroll software alone$540-$1,350, work stays with you
Coverage during absenceContinuousGap unless you staff two
Multi-state registrationIncluded, all 50 statesYour team tracks it
Process documentationMaintained by BEGUsually in one person head

BEG at 100 employees: $2,500 to $4,500 per month, $25 to $45 PEPM, the published band. Payroll software at this size runs roughly $540 to $1,350 per month. The internal alternative is a payroll manager at $85,000 to $110,000 base, often plus part-time support, at $110,000 to $160,000 fully loaded, roughly $9,200 to $13,300 a month.

What Is Included

Everything in the rate, with no per-filing add-ons

  • Payroll processing on your schedule
  • Federal, state, and local tax filing
  • Multi-state registration and filing
  • Direct deposit and pay stub delivery
  • New hire reporting
  • Garnishment processing
  • Benefit and voluntary deduction handling
  • PTO accrual tracking
  • W-2 and 1099 preparation and filing
  • Year-end close
  • Tax notices answered by BEG
  • A named specialist who knows your account

$25 per employee per month inside your existing platform, or $45 on BEG isolved. A $500 monthly minimum applies.

How It Works

Three steps to fully managed payroll

01
Scope review
Fifteen minutes on your headcount, states, pay types, benefit deductions, and current platform. You get a firm number and a straight answer on whether this is a fit at 100 employees.
02
Setup and parallel run
We configure inside your existing platform or on isolved, load employee records and YTD balances, confirm state registrations, and run one cycle in parallel so nothing lands wrong on the first live run.
03
Live in 3 to 5 business days
From signing to live managed payroll. After that, nobody at your company runs payroll. You approve, we do the rest, and your specialist handles the questions that used to land on a manager.

Get The Number For Your Headcount

This page uses 100 employees as the example. Your actual rate depends on states, pay types, and platform. A fifteen minute scope review gets you a firm number, and if managed payroll is the wrong call at your size we will say so rather than quote you anyway.

FAQ

Common questions at 100 employees

How much does payroll cost for 100 employees?

With BEG, $2,500 to $4,500 a month at the $25 to $45 PEPM band, all-inclusive. That covers processing, multi-state tax filings, W-2s, garnishments, compliance monitoring, and year-end close with no per-filing add-ons.

Should a 100-person company hire a payroll manager?

On cost alone, no. A payroll manager runs $110,000 to $160,000 loaded, roughly $9,200 to $13,300 a month, against $2,500 to $4,500 for managed payroll. Hiring makes sense if the role also owns HR generalist work, benefits strategy, or HRIS administration that you need internally anyway.

Can BEG handle multi-state payroll for 100 employees?

Yes. BEG maintains registrations across all 50 states and allocates wages by work location, which is the specific mechanic most companies get wrong when remote hiring outpaces their registration footprint.

What happens to our current payroll person if we outsource?

In most cases they move to higher-value HR work rather than leaving. Companies at this size rarely have a shortage of HR work, they have a shortage of time, because payroll processing consumes the person who should be handling recruiting, onboarding, and retention.

Related pages

See full managed payroll pricing, or all managed payroll services.

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