Certified payroll with ADP: from your payroll register to a WH-347

If your company runs payroll in ADP and has just picked up a Davis-Bacon or prevailing-wage job, you will soon find that the payroll itself is the easy part. Every week you also owe a certified payroll for each covered project, usually on DOL's form WH-347, and it needs numbers your payroll run does not organize the way the form does.

This guide explains which of those numbers ADP already gives you, what is missing, your options for producing the report, and a weekly routine that keeps it from eating your Monday.

What the WH-347 needs, and what ADP already has

The WH-347 has two halves. The right side is pay for the week. The left side is the work: who, in which classification, for how many hours on this project each day.

So the register covers the pay columns, and the gaps are hours by project, classifications and fringes. That is where the weekly work goes.

Your options

1. Check what your ADP plan includes

ADP offers several payroll products, and what is included varies by product and plan. Ask your ADP representative whether your plan has a certified payroll or prevailing wage report, and whether it covers the agency formats your jobs require.

2. A certified payroll app from ADP Marketplace

ADP Marketplace lists third-party apps that read your ADP data and build certified payroll reports. As one example, the Points North certified payroll app for RUN listed a $175 monthly base plus $7.50 per report, with a $995 setup fee for its Basic edition (federal WH-347 only, 1-25 employees) and $1,495 for Deluxe, which adds state and municipal reports (as listed in October 2026). Check the current listing; prices and editions change.

3. Build it from the register yourself

Many small subcontractors run the register report each week, export it to Excel or CSV, and copy the numbers into a WH-347 alongside the timesheet hours. It works, and it costs nothing but time. It is also where most errors come from: a transposed rate, an overtime hour on the wrong day, a worker left off.

4. An export-based tool

A tool can read the same register export and timesheet file you would copy from, do the matching and arithmetic, and produce the WH-347. That keeps ADP as your payroll system with no integration or setup project.

Getting the export out of ADP

Run your payroll register (or payroll summary) for the pay date that covers the workweek, at the employee level, and export it to Excel or CSV rather than PDF. You want one row per employee with at least:

• Employee name and employee ID
• Regular and overtime hours, and rates if the report has them
• Gross pay
• Federal and state withholding
• Social Security and Medicare (FICA)
• Each other deduction, such as benefits or garnishments
• Net pay

Report names and column choices differ between ADP products and change over time, so look for the register or payroll summary in your reports area and save a custom version with these columns once you find it. A PDF register can be read, but numbers copied from PDFs are where errors creep in.

Hours by project: the part ADP may not hold

The WH-347 is per project, so you need each worker's hours split by job and by day. If your crew records hours in ADP's time tracking with a job or department code, export that. If not, the hours live on timecards, a separate time app, or the foreman's sheet.

Two rules to keep in mind while splitting hours:

• Overtime counts all the work. On contracts covered by the Contract Work Hours and Safety Standards Act, DOL's instructions say hours on the project past 40 total in the week are shown as overtime, counting hours worked on and off the covered site. A worker with 24 hours on a private job and 24 on your federal job has worked 48, so 8 of them are overtime.
• Payroll and timesheet totals should agree. If ADP paid 44 hours and the timesheets add up to 42, fix that before the WH-347 is built.

A weekly routine

1. After payroll is processed, export the register for the week.
2. Export or collect hours by project and day for the same workweek.
3. Match workers between the two files by employee ID or name.
4. Set each worker's classification on each project from the wage determination.
5. Fill the WH-347 for each covered project, using the next payroll number.
6. Check it: rates at or above the wage determination, overtime at 1.5x, 7B minus deductions equal to net pay.
7. Sign page 2, send it the way the agency or prime asks, and keep a copy.

The WH-347 instructions explain each column in detail.

How Cert Pay Weekly works with ADP

Cert Pay Weekly is the export-based option. You upload your ADP RUN payroll register as a CSV or XLSX file (a PDF register is accepted as a fallback), plus hours by project from your timesheet export or a weekly grid. You confirm which column holds what the first time, and it remembers the layout. It produces one WH-347 per prevailing-wage project, flags missing classifications and pay below your wage determination's rates before you sign, and emails reminders until you mark each report submitted. It produces the federal WH-347 PDF; it does not file to LCPtracker or state portals today.