Matching Wage Deductions to W-2

[alohaTy]

TT Business recommends making sure that the payroll tax forms match what is recorded as Wages in the tax return (under Deductions). What exactly am I looking at? If I'm looking at the W-2, is it Box 1? If so, that doesn't make sense to me, since our payroll provider subtracts from Box 1 the employee's contributions to their 401k, and I don't see why that wouldn't be a Employer deductible expense. There is a separate section in TT for Retirement Plan, which I assumed was only for Employer Matching/Contribution, not the Employee Contribution. Does Employee Contribution go there?

FYI, we're a 2-person S-Corp with both members as significant owners/shareholders and active employees.

[alohaTy]

Ok, I think I get it now, helped by this other TT post: https://ttlc.intuit.com/community/business-taxes/discussion/s-[product key removed]yee-with-new-401k...

Essentially, 401k contributions (whether it comes from employee paycheck or from the employer such as matching) are put under Retirement Contributions (line 17). Therefore, they are subtracted from Wages & Salaries (line 8 so they are not deducted twice, even though in my mind this was part of the employee wages regardless how much an employee diverted to a 401k. Roth employee contributions however remain under Wages & Salaries. The W-2s Box 1 should be used for Wages & Salaries and then any employer or employee 401k contributions be put under Retirement Contributions.