Making Tax Digital - VAT - Bridge
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Reverse chronological order of updates and releases to the service.

Administrative Updates
Some new code, configuration and document pages were uploaded to the server today. Any problems, please feel free to hit the contact form or telephone.
HMRC May have issued letters incorrectly
We received the following from HMRC. We are not aware of any issues affecting our customers but if you have a letter you may need to check.
We have been advised that some 'VAT notice of assessment of tax' letters recently sent to Making Tax Digital customers, were issued in error.
If the business has already submitted the VAT return in question and paid the tax due/received its repayment, they can ignore this letter. Customers can check their position using 'HMRC online services', and agents can check this on their clients' behalf by using the 'Manage your client's details' service.
Apologies for any inconvenience this may have caused. The live service issues page will be updated to include this information.
Failure to Brexit means no update to service
API changes expected and planned for in the event of Brexit on 31st October 2019 have been delayed. We are still awaiting confirmation of the changes that we will need to make in the event of any form of Brexit. When we know what is happening we will update this news channel.
HMRC Re-enable older versions of TLS...
Today we got this:-
"We have temporarily re-enabled support for TLS version 1.0 and 1.1 in our Developer Sandbox due to unexpected network behaviour"
from HMRC. It won't affect running of the site.
New Documentation Added
Some sample spreadsheets to the 'How To Use Menu' . It may be easier to look at those than make sense of the other documentation.
Jump directly to the Sample Page
HMRC Remove TLS < 1.2 from Sandbox
"Further to our mail dated 2/10/19 we are pleased to confirm that support for TLS 1.0 and 1.1 has been withdrawn from our Developer Sandbox at . All submissions to the Sandbox must now use TLS 1.2 or higher.". is compatible with the change and continues to work.
HMRC will provide details of the date this change will be made to the live service in the near future.
HMRC VAT Number Check - Post Brexit
HMRC sent details of new API how to check a VAT number. This is new code - currently HMRC DO NOT provide the means to check a VAT number. uses VIES which is a European system. Better late than never .... More coding coming up :-(
Short Outage of
The site was down for maintenance 21:00-21:30 on 10th October - so we increase database space.
No Deal Brexit & MTD VAT
HMRC Released a memo to MTD VAT developers explaining that in the event of a no deal Brexit there will have to be changes to the API and the VAT100 forms. It seems as if we have a moving target... News will be updated as more details become available.
HMRC MTD VAT API Unavailability This Weekend
HMRC's MTD VAT API will be offline 00:00 to 08:00 on Sunday 13th October 2019. Users will not be able to upload VAT returns or query liabilities etc. This is an HMRC issue and affects all HMRC users not just
Minor Site Update and New Features rolled out.
Added code to timeout idle sessions, cleaned up some untidy modules and modified some modules to use HMRC API calls rather than cached data.
MTDVAT API Service Resumed
HMRC have restored the MTD VAT API Service. should all be working fine now.
MTDVAT API Currently unavailable
The 'organisations/vat' API is currently unavailable. This is an error with HMRC's systems and beyopnd our control. We have received a communication saying the problem is being investigated but as yet we have no indication of when a fix will be in place.
2019-08-06 Passes HMRC's Validation Process

HMRC validated the system and gave the go ahead to use the live API.

The system is currently undergoing a release process to the public facing servers.