Quarterly estimated taxes are due in 12 days — self-employed and gig workers who underpay by June 15 get hit with an 8% IRS penalty plus daily interest
Self-employed workers, freelancers, and gig-economy earners face a fast-approaching deadline: the second-quarter estimated tax installment is due June 15, 2026. Those who underpay or skip the payment entirely risk an addition to tax that is calculated as an annualized percentage of the shortfall, plus interest that begins accruing the day after the deadline and does…