Most freelancers know they need an emergency fund. Fewer realize their emergency fund might already be committed to another obligation before they ever draw on it. The quarterly tax trap is one of the most common and damaging financial mistakes freelancers make: storing their emergency fund and their self-employment tax reserve in the same account, without separating or tracking which is which. When a slow quarter arrives and they draw on "savings," they are drawing on money that belongs to the IRS. This creates a compounding problem that turns a manageable slow period into a debt event with penalties. How Self-Employment Tax Works When you work for an employer, they withhold income tax, Social Security, and Medicare from each paycheck. By the time the money reaches you, the obligations are already handled. As a freelancer, nothing is withheld. You receive your full gross payment and are responsible for estimating and remitting your own taxes on a quarterly schedule.…