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Payroll's Single Point of Failure: What Happens When That One Person Is Out?

Every agency has one person who runs payroll. When they're sick, on vacation, or quit — payroll stops. Here's how to build redundancy without adding headcount.

It's Wednesday 10am. Payroll runs Friday.

The only person who knows how to process it in Gusto/ADP/Rippling is at a dentist appointment. Then they get sick. Then they quit.

Now you're calling support at 4pm Friday, explaining you don't know your own EIN, trying to get a one-time code to run payroll for 22 people who have rent due Monday.

This is the #4 finding in our audits. Every agency has it. Zero agencies plan for it.

The Bus Factor Test

Right now, without looking: Who runs payroll? What's the login? What's the cutoff? Where are the tax IDs?

If you can't answer all four in 30 seconds, you have a single point of failure.

The Redundancy Protocol (No New Hires)

1. Document the Runbook (2 hours once)

Create a Notion page: Payroll Runbook. Sections:

| Section | What to Include | |---------|-----------------| | System Access | Platform (Gusto/ADP/Rippling), login URL, 2FA method, backup codes location | | Schedule | Pay periods, cutoff dates, submission deadlines, pay dates for 12 months | | Step-by-Step | Screenshots: login → run payroll → review → submit → confirm | | Inputs Required | Hours/timesheets source, bonus/commission approvals, contractor payments, expense reimbursements | | Approvals | Who approves before submit (founder? COO?), how they approve (email, Slack, in-system) | | Tax/Compliance | EIN, state tax IDs, SUTA rates, filing calendar (quarterly, annual) | | Edge Cases | Terminations mid-cycle, garnishments, 401k matching, multi-state employees | | Support Contacts | Platform support phone/email, account manager, CPA firm |

2. Designate a Backup (This Week)

Criteria:

  • Not the primary payroll person
  • Trusted with sensitive data (SSNs, bank accounts, compensation)
  • Available during payroll weeks
  • Willing to do a dry run

Candidates: COO, Ops Lead, Founder (if not primary), fractional CFO, senior PM with finance exposure.

3. Quarterly Dry Run (30 minutes)

Next payroll cycle:

  1. Primary walks backup through the runbook live
  2. Backup runs next payroll with primary shadowing
  3. Swap roles next cycle

Quarterly thereafter: Backup runs one full cycle solo. Primary verifies.

4. Access Redundancy

  • Password manager: 1Password/Bitwarden shared vault. Both have access.
  • 2FA: Authenticator app on both phones (or hardware keys for both).
  • Backup codes: Printed, sealed, in fire safe. Both know location.
  • Platform permissions: Both have "Admin" or "Full Access" role in payroll system.

The Vacation/Illness Protocol

Planned absence (vacation):

  • 2 weeks notice → backup runs that cycle
  • Primary available by phone for questions (not doing the work)

Unplanned absence (illness/emergency):

  • Backup has full access today
  • Runbook is current (quarterly review)
  • Escalation: CPA firm has standing authorization to run payroll if both unavailable

The Departure Protocol

When the primary gives notice:

Week 1: Backup runs payroll with primary shadowing (reverse of dry run) Week 2: Backup runs solo, primary available by phone Week 3: Backup runs solo, no contact Week 4: Primary gone. Backup is now primary. New backup designated.

Quick Win This Week

  1. Ask your payroll person: "If you got hit by a bus tomorrow, could [X] run payroll Friday?"
  2. If no: Schedule 2 hours this week to build the runbook together
  3. Add quarterly dry run to both calendars (recurring, forever)

The Real Cost

If it breaks: Late payroll = state penalties, employee trust destroyed, potential lawsuits, "best place to work" reputation gone.

If it works: 30 minutes/quarter. One Notion page. Two people who know the login.

Your call.


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