Hopefully most sage operators would have performed this over the weekend , but here is how to change the Sage VAT Rate in the UK for the new rate of 15% from the 1st December for a couple of years! Sage Version 8 Click on : Settings then go to Tax Codes Click on T1 – Edit Rate – change to 15.0 – ok The VAT code should now be 15% Sage Version 10, 11, 12, 13, 14 (2008), 15 (2009) Click on : Settings then go to Configuration Tax Codes – Click on T1 – Edit Rate – change to 15.0 Ok – Apply – Save – type in 15% – Save From 1st December 08 should be at 15% as well as any purchase invoices dated from the 1st, however any purchase invoices received up to 30th November will be at 17.5% so you will have to make sure that the “Net” and the “VAT” amounts on Sage are correct as Sage will be calculating it at 15% and not 17.5%. More details here from Sage