Managing all of this takes time and brain power. You’re contacting the employee, looking up policy details, doing unconfident math, and trying to figure out payroll work-arounds. The lost productivity cancels out the amount you’re saving by relying on these outside subsidies. Meanwhile, the new parent thinks it’s all your fault and blames you for the terrible experience you’re putting them through.

Before you start planning how you’ll spend that “free” paycheck before your finance department re-balances the budget for 2026 you need to know that your payroll provider is probably smart enough to anticipate this. There are two methods that payroll providers use to solve the 27-paycheck problem: Pro rata and pay as usual.

These days, it seems obvious that workers should be able to demand an accurate accounting for their time. But it wasn’t always that way. 

Here are five examples of mundane breakdowns that I’ve seen lead to payroll errors:

Except that something didn’t add up. They didn’t even have employees for half that time, and one of the people they were assessing violations on wasn’t even in the state. 

Letters from government agencies can be real scary sometimes. Especially when they contain words like "Warrant" and penalties with commas in them. By all means, take these letters seriously. But don't let them scare you.

If more people could see the data, maybe they’d want to renegotiate. But they might also have a better understanding of how their value is measured, and therefore find ways to bring more value to the company.

The many layers of humans and technology that go into insurance deductions can make it hard to track down where the problem is. And because of the old school systems insurance companies still use, it can be like traveling back in time. 

You run a draft payroll the regular way to get the numbers, enter the gross pay into an off-cycle payroll, and it spits out a number that’s off by 17¢ from what regular payroll said.  Why? Whyyyyy?

He was quite confident that people always know when their paycheck is wrong. I wish that were always true. Payroll is complex, and you don’t know what you don’t know. I see a ton of these kinds of silent errors with 401(k)s.