Does a full-service payroll plan really take every payroll tax task off your hands?

Summary

No. Full-service providers file and pay federal, state, and local payroll taxes and produce year-end forms. Under Gusto's terms, for example, the employer still has to obtain the state tax account IDs, deposit anything owed from before signing up, and close accounts in states where it stops paying people. Penalty coverage varies a lot by provider, and none of them covers a penalty caused by wrong information the employer entered.

What the providers say they file

Gusto says it files "federal, state, and local payroll tax forms" on the company's behalf, naming Form W-2, Form 1099, Form 940, Form 941, and Form 8974. Patriot Software's Full Service plan lists federal, state, and local filings and deposits plus year-end filings at no extra fee, with each additional state at $12 a month. Every QuickBooks payroll plan carries the line "We'll calculate, file, and pay your payroll taxes for you."

Where full service stops

The fine print is where the gaps show up:

Gusto's payroll terms make it a condition of service that the employer has "applied for and received applicable tax agency account ID(s)." Gusto sells state registration as an add-on handled by its partner CorpNet, with pricing that "varies by state."
Taxes from before you signed up are yours. Gusto's terms require the employer to deposit liabilities incurred before enrolling, and Gusto files only for quarters in which you ran payroll with it.
Gusto does not file any return in a state, including a $0 return, until you report wages there. Earlier $0 returns are the employer's job, and so is closing tax accounts in states where you stop running payroll.
Patriot's Full Service does not handle Form 943 for agricultural employees, and it does not handle garnishment or child support payments or retirement plan integration.

Who pays when a penalty arrives

Patriot says it will cover penalties and interest if the problem is "a glitch on our end." Gusto's terms say it "will not be liable for any penalty, interest, Claims, or liability that results from inaccurate or incomplete Payroll Information."

QuickBooks goes furthest, but only on its top plan. Workforce Elite pays up to $25,000 a year in payroll tax penalties and interest "for any reason," regardless of who made the error. The conditions are specific: you send the full notice within 15 days of the date on the first notice, and the coverage excludes periods before you were on Elite, worker misclassification, and willful or fraudulent input. You still owe the tax itself.

On the payroll-only plans, 10 employees cost $120 a month on Workforce Payroll ($50 plus $7 per employee) and $304 on Elite ($134 plus $17). That $184 a month, $2,208 a year, also buys Elite's other features, but it is the figure to hold against a $25,000 cap if penalty coverage is the reason you are looking at Elite.

Watching the deposits yourself

The IRS tells employers who outsource payroll not to change their address of record to the provider's. It also says providers should use EFTPS, the federal electronic tax payment system, and that employers should enroll with their own PIN and check periodically that deposits are being made. In the IRS's words, "A red flag should go up the first time a service provider misses a payment or makes a late payment."

Sources

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Written by Kaz, independent publisher. No commercial relationship with the companies named unless it is listed on the disclosure page.

Published September 27, 2026. The figures above come from the government and vendor pages listed under Sources.

I have not used these products. Nothing here is a personal test result.

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