This may be due to a refund offset or if the IRS made a correction to your tax return, resulting in a lower than anticipated refund. You should soon receive a letter from the government explaining why you didn't get the entire refund. If you don’t get a notice, you’ll need to call:
- Bureau of Fiscal Services at 800-304-3107
- TDD at 866-297-0517
https://www.irs.gov/newsroom/tax-refund-offsets-pay-unpaid-debts
You can also contact the IRS for further assistance regarding this matter. Their phone number is 800-829-1040.
https://www.irs.gov/help/telephone-assistance