| Phone no. | opening times | ||
| 1 | HMRC Self Assessment helpline no. | 0300 200 3310 | 8am to 8pm Monday to Friday, 8am to 4pm Saturday, closed on Sunday |
| 2 | HMRC Employer helpline no. | 0300 200 3200 | 8am to 8pm Monday to Friday, 8am to 4pm Saturday, closed on Sunday |
| 3 | HMRC Employee helpline no. | 0300 200 3300 | 8am to 8pm Monday to Friday, 8am to 4pm Saturday, closed on Sunday |
| 4 | HMRC National Insurance helpline no. | 0300 200 3500 | 8am to 8pm Monday to Friday, 8am to 4pm Saturday, closed on Sunday |
| 5 | HMRC Tax credits helpline no. | 0345 300 3900 | 8am to 8pm Monday to Friday, 8am to 4pm Saturday, 9am to 5pm Sunday |
| 6 | HMRC Child benefit helpline no. | 0300 200 3100 | 8am to 8pm Monday to Friday, 8am to 4pm Saturday, closed on Sunday |
| 7 | HMRC VAT | 0300 200 3700 | 8am to 6pm Monday to Friday, Closed on Saturday and Sunday |
| 8 | HMRC Online Services Helpdesk | 0300 200 3600 | 8am to 8pm Monday to Friday, 8am to 4pm Saturday, 9am to 5pm Sunday |
