How to Switch Your Contracting Business From Manual Payroll to Payroll Software

To move payroll from a spreadsheet or manual process into payroll software, start by choosing a system that fits how you pay your crew. For a contracting business, that can mean accounting for different pay rates, employees, independent contractors, and subs, hours coming in from job sites, and payroll you've already run this year.

Before your first payroll software run, you'll need complete worker and year-to-date payroll information in the new system and a way to check that the first payroll run reflects what you intended to pay.

If you're moving during the year, SurePayroll® By Paychex can help bring your prior payroll information into the system during setup.

Signs your contracting business has outgrown manual payroll

You've outgrown manual payroll when the method that worked for a smaller crew no longer keeps pace with the people, jobs and pay arrangements you've added.

You'll see it in how payroll fits into your week. Collecting hours from several job sites takes longer, and more of your payroll processing lands after the workday. Every new rate, independent contractor, sub or job adds another figure to calculate, another record to keep and another line in your job costing, and a correction means tracing it back through the spreadsheet by hand. More people also ask for payroll information: a general contractor wants records for a job, or your accountant needs year-to-date totals.

Manual back-office work is still common among businesses like yours. In a 2026 survey of 417 small and midsized vendors, 26.1% reported using pen, paper, or spreadsheets for accounting and payment tasks. Construction and contracting businesses made up 71.9% of respondents.

What payroll software needs to handle for your crew

Look for payroll software that supports the way your crew works and gets paid.

A business that pays everyone one hourly rate needs less from payroll software than one that pays the same carpenter one rate for framing and another for finish work.

For how pay structures, overtime and crews working across state lines affect payroll, see what you need to know about payroll for your small construction business.

Decide early how much payroll tax work you want the service to take on. Some payroll services cover payroll processing only; others also make tax deposits and file payroll tax returns. Confirm exactly which tasks are included before you choose.

General small business payroll software can fit many private-sector contracting businesses. If you perform covered public works projects, you may also need certified payroll and prevailing wage capabilities. Not all payroll software produces certified payroll reports, so check the contract requirements before choosing software.

When to switch from manual payroll to payroll software

Choose your first software payday, ask the provider how much setup time it needs, and work backward to set your start date and final manual payroll.

You can change systems at any point in the year. Starting with a new quarter or year can mean fewer year-to-date totals to enter. If your business has a slower season, that can also give you more room to check the first few payroll runs. For more on timing a change in payroll systems, see how to switch payroll providers mid-year.

Once you've picked the first payday, gather the records you'll enter during setup.

What to prepare before switching to payroll software

Before setup, gather your business tax accounts, worker information and year-to-date payroll records.

• Business and state accounts. Your federal employer identification number (EIN), plus withholding and unemployment account numbers for each state where you're required to withhold income tax or pay unemployment tax. A state your crew worked in briefly isn't automatically one where you register, so check that state's rules. You register these accounts and enter the unemployment tax rate each state assigns you.
• Each worker's setup. For employees, gather Form W-4, Employee's Withholding Certificate, any state withholding forms, every rate the person is paid, deductions and direct deposit details. For independent contractors and subs, gather Form W-9, Request for Taxpayer Identification Number and Certification. Before you set anyone up, confirm whether they're an employee or an independent contractor. That depends on the working relationship, not a title or an invoice, and the difference between an independent contractor and an employee explains how to tell.
• Year-to-date payroll, by quarter. Gather wages and withholding for everyone you've paid this year, including people who've left, plus what you've paid each independent contractor and sub, the Forms 941 you've filed and the payroll tax deposits you've made.

Easy as 1.2.3... Quick and easy set up. Ready to go in no time. Our sales rep was on top of making this a painless transition for us. Glad we made the switch!

— Kim H, Better Business Bureau review

Include any wages you paid in cash. Per the IRS, cash wages are wages, and they belong in the year-to-date totals for the quarter you paid them. Two weeks of cash wages paid earlier in the quarter, for example, belong in that quarter's totals.

Before setup, reconcile your payroll records. Your pay records, the Forms 941 you've filed and your deposit records should agree, and where they don't, trace the difference back to the underlying wages and withholding before you enter any totals. How to move from manual payroll to payroll software walks through that reconciliation step by step.

With your records reconciled, you're ready to set up the software.

SurePayroll includes data migration and setup support as you prepare for your first software payroll run.

How to move your payroll into the new software

A move from manual payroll to software usually includes a few key checkpoints: your last manual payroll, setup, any required authorization, a setup check and your first software payroll. The exact setup order varies by provider.

Each checkpoint has something to confirm:

If the payroll provider will deposit and file payroll taxes for you, you'll generally sign Form 8655, Reporting Agent Authorization. It lets the provider file returns and make deposits starting with the tax period you list. You remain responsible for your employment taxes. How to move from manual payroll to payroll software covers the authorization in more detail.

Verify the setup before or during your first live payroll run. One way to verify the setup is to calculate the same pay period in the software and compare the results with your manual records.

Start with the employee whose week was hardest to calculate, such as someone who worked at two rates and picked up overtime. If the software's figure differs from your spreadsheet, investigate the inputs on both sides, such as hours, pay rates, Form W-4 entries and deductions. Small differences may be due to rounding, but trace larger differences before you approve payroll.

SurePayroll was excellent helping me get set up. I've never done any payroll system, so I was nervous I was going to mess something up, but [my rep] was always available for calls and he was helpful every step of the way!

— Belinda L, Better Business Bureau review

Payroll tax deposits and filings during the switch

Payroll tax responsibilities during the transition depend on what your provider is authorized and contracted to do. With pay-only software, you continue making deposits and filing returns. If your provider handles taxes, confirm which deposits and returns it will make and file, and starting with which period. You remain responsible for your payroll taxes either way.

• Deposits due around the switch. Payroll tax deposits follow your assigned deposit schedule, which is separate from your payroll schedule. A deposit for wages paid before moving to a new payroll system can come due after it, so confirm whether you or the provider makes that deposit.
• Returns for periods that ended before the switch. Confirm whether returns for a quarter that ended before the provider's authorization took effect, such as that quarter's Form 941, remain yours to file. If you change at the start of a year, ask the same about the prior year's Forms W-2, W-3, 940 and 1099-NEC.
• The transition quarter. IRS Form 941, Employer's Quarterly Federal Tax Return, is filed for the quarter and reports all of that quarter's wages, including payrolls before the transition. Confirm who files it and how the provider uses the prior payroll data you entered. Ask the same about your state unemployment wage reports.
• Year-end forms. Forms W-2 report the full year's wages. Confirm who prepares them and that they include wages paid before the move.

Write down who makes each deposit and files each return for the transition quarter. Clear ownership can help prevent a deposit or return from being missed or submitted twice. A late deposit carries the IRS failure-to-deposit penalty, which ranges from 2% to 15% of the unpaid deposit, depending on how many days late it is and whether the IRS has sent a notice.

Run your contracting business payroll with SurePayroll

When you're ready to move payroll out of spreadsheets, you can pay employees and independent contractors from one account with SurePayroll.

SurePayroll makes payroll tax deposits on your assigned schedule and files your payroll tax returns, and you review and approve payroll before it's submitted.

‍See plans and pricing.