* 3 months in advance: This will give you plenty of time to study and prepare for the exam.
* 1 month in advance: This is the absolute minimum amount of time you should give yourself to register for the GRE. However, it is not recommended to wait this long, as you may not be able to get your desired test date or time.
TOEFL:
* 6 months in advance: This will give you plenty of time to study and prepare for the exam.
* 1 month in advance: This is the absolute minimum amount of time you should give yourself to register for the TOEFL. However, it is not recommended to wait this long, as you may not be able to get your desired test date or time.
Additional considerations:
* If you are applying to graduate school, you should check the deadlines for the programs you are interested in. Some programs have early deadlines, so you will need to register for the GRE or TOEFL well in advance.
* If you are taking the GRE or TOEFL for the first time, you should consider taking a practice test to get an idea of what the exam is like. This will help you to better prepare for the actual exam.
* If you have any questions about registering for the GRE or TOEFL, you should contact the Educational Testing Service (ETS).