You can publish P60s in Sage HR Essentials as part of the Year End process within Sage Payroll. 

When you click Publish Online, you have the option to choose your publish date.

P60 corrections

If you made a correction before you published your P60's:

• Publish the P60 as normal

If you made a correction after you published your P60's, your P60 is automatically updated. To republish your P60's:

• Select Publish P60s for that completed year end