Happy Young Hispanic Boy with Backpack Ready for School.If you have DACA (Deferred Action for Childhood Arrivals) status in the U.S., which lasts for two years at a time, you may have heard that renewals are now possible — and encouraged, if you don’t want to lose your work permit and start accruing “unlawful status.”

For details on how to renew, see Nolo’s update, “DACA Program Now Open for Renewals; Plus New Form I-821D.”

Timing is crucial. If you apply more than 150 days before your status expires, U.S. Citizenship and Immigration Services (USCIS) will reject and return the application to you. But if apply fewer than 120 days before your status expires, USCIS may not have time to process and make a decision on your application, and you could lose your job and end up with a gap in status (assuming you’re eventually approved).

Have you ever tried counting out days on a calendar? It’s a pain. That’s why applicants might be grateful to see that the National Immigration Law Center (NILC) has come up with a handy calculator that figures out exactly the best window of time in which to apply. Just click the “THIS TOOL” link, enter the expiration date on your work permit (EAD), and the appropriate dates will pop up.