After you file

@berkayakyurt The status of the federal tax refund will be shown on the IRS website - https://www.irs.gov/refunds

 

After the tax return has been Accepted by the IRS (meaning only that they received the return) it will be in the Processing mode until the tax refund has been Approved and then an Issue Date will be available on the IRS website.
See this IRS website for federal tax refund FAQ's - https://www.irs.gov/refunds/tax-season-refund-frequently-asked-questions

 

If you are outside the US and want to speak with an IRS agent concerning your tax return and tax refund then call Monday-Friday, 6 a.m. to 11 p.m. (Eastern time, U.S. and Canada)