The deadline for filing Oregon state taxes typically coincides with the federal tax filing deadline, which is usually April 15 each year. However, if that date falls on a weekend or holiday, the deadline may be extended to the next business day. It is important to note that Oregon residents may be eligible for an automatic extension to file, which can provide an additional six months. This extension allows individuals to submit their tax return by October 15, but it is crucial to remember that this extension does not apply to the payment of any taxes owed. Taxes must still be paid by the original deadline to avoid interest and penalties. For the most accurate and current information, individuals can check the Oregon Department of Revenue's website.