Setting Up Multi-State Payroll for an Architecture Firm, Step by Step

Before touching either platform, list every licensed architect, project manager, and drafter, and note their actual physical work location, not their titled office assignment. A firm that opened a satellite office for one project and staffed it with two people working remotely from a third state has a more complex footprint than the office location alone suggests. This step is the same regardless of which platform you choose, and skipping it is the most common reason multi-state setup goes wrong later.

Each state on your list from step one needs a withholding account and typically an unemployment insurance account opened before that state's first paycheck runs. This is where the two platforms diverge most clearly: Rippling generally handles new-state registration faster and with less manual document gathering on your end, while Gusto's process tends to take longer but is manageable if you are not opening states on a tight project timeline.

Licensed architects performing architectural work are generally exempt from overtime under the professional exemption, but junior drafters, interns, and administrative staff are not automatically exempt just because they work at a design studio, and exemption tests vary somewhat by state. Review every non-licensed role against the actual exemption criteria, not job title, since this is a common gap in firms that have grown quickly and added junior staff without revisiting the original classification.

Architecture firms typically bill projects on a percentage-of-construction-cost or fixed-fee basis, which makes it easy to lose sight of whether a given project is actually profitable once staff time is fully loaded against it. If your platform supports labor tagging by project or client, set it up now rather than after the fact, since reconstructing historical labor allocation from memory is far harder than tagging it as it happens.

Whichever platform you land on, run at least one complete pay cycle in parallel with your current system before fully switching over, checking that every state's withholding calculated correctly, that exempt and nonexempt staff are both handled properly, and that project labor tagging, if you are using it, matches what project managers report as actual time spent. A parallel run catches setup errors while you can still fix them without an employee's paycheck being wrong.

Multi-state payroll setup is not a one-time task for a firm that regularly bids on out-of-market work. Build a habit of running through steps one and two again whenever a new project is likely to bring staff into a state you have not operated in before, ideally as part of project kickoff rather than after someone has already started working there.

A common mistake is registering a new state only after an employee's first paycheck has already been processed incorrectly, rather than before their start date, which then requires correcting withholding retroactively and sometimes filing amended returns. Another common mistake is assuming a remote hire's home address is automatically the correct withholding state without confirming they aren't working from a different location part of the year, which can happen with staff who split time between a home office and client sites. A third is letting project labor tagging lapse once the initial project that motivated setting it up wraps, so the next project starts without it and the firm loses the profitability visibility it built the system for in the first place. Each of these is avoidable with the same discipline: treat every new hire, every relocation, and every new project as a trigger to run through the setup steps again, rather than a one-time process completed when the firm first adopted whichever platform it chose. None of these mistakes are hard to fix once caught, but catching them after the fact always costs more staff time than building the habit would have in the first place. Build the habit into whatever project kickoff checklist your firm already uses, so it rides along with steps the team is doing anyway instead of becoming one more separate process to remember.

Avoid these common setup mistakes:

• Registering a new state only after an employee's first paycheck has processed incorrectly, which forces retroactive corrections and sometimes amended returns.
• Assuming a remote hire's home address is automatically the correct withholding state without confirming where they actually work.
• Treating junior drafters, interns and administrative staff as exempt from overtime based on job title instead of actual duties.
• Going live without a full parallel pay cycle to check every state's withholding.