Doing payroll yourself is possible. Whether it’s worth your time and the risk is a different question.

DIY payroll means calculating federal income tax withholding, Social Security, and Medicare for every pay period. In New Mexico, you’re also calculating state income tax withholding. Then you have to deposit those taxes on time. The deposit schedule depends on your liability level and missing deadlines triggers penalties. Every quarter you file Form 941 with the IRS and CRS-1 with the state. At year end, you produce W-2s for employees and file them with the Social Security Administration.

Get any of this wrong and the penalties add up fast. The IRS charges penalties for late deposits, late filings, and incorrect returns. New Mexico does too. A single missed quarterly filing can cost more than a full year of payroll service fees.

For one or two employees with straightforward hourly or salary wages, DIY payroll can work if you’re detail-oriented and committed to staying on top of the compliance calendar. You’ll need payroll software that handles the calculations and produces the forms. You’ll also need to keep up with tax rate changes every year and adjust your withholding accordingly.

For most small businesses, a payroll service is worth the cost. Services like Gusto, QuickBooks Payroll, or ADP handle the calculations, tax deposits, and filings automatically. They stay current on federal and state tax law changes. They produce W-2s at year end. Monthly cost for a handful of employees typically runs $40-100 depending on features and employee count.

The real question is what your time is worth and what happens when something goes wrong. A $50 monthly service that prevents a $500 penalty and saves you several hours each month is a good trade. Most business owners I talk to started doing payroll themselves, eventually made a mistake or missed a filing, paid the penalty, and switched to a service.

If you decide to use a service but aren’t sure how to set it up correctly, payroll system setup gets you started right. The initial configuration matters because getting employees, tax accounts, and withholding settings entered correctly prevents problems later.

The broader point is that payroll is one of those things where the cost of mistakes exceeds the cost of doing it right. A payroll service or working with virtual bookkeepers in New Mexico who understand the compliance requirements keeps you out of penalty territory and lets you focus on running your business instead of tracking filing deadlines.