SuziVAT - Submit MTD VAT

This program is Bridging Software that allow you to upload VAT figures from an Excel Spreadsheet and submit them to HMRC as your VAT Return using the HMRC API. It is a Windows program (.NET 4.5)

It is only of use for small businesses or Sole Traders who have simple VAT recording needs. This is most of them.

It is limited to these four VAT figures

Sales VAT
Purchases VAT
Sales Turnover
Purchases Turnover

It only supports the two basic API endpoints which are

Get Outstanding Returns (Retrieve VAT obligations)
Submit a Return (Submit VAT return for period)

The program assumes that your VAT Periods end on the last day of the Month which is normally the case.

This program is free and is offered for you to use at your risk with no support.

To use

Download Zip File here
Un-Zip to a suitable location such as C:\VAT
Read the "Install and Run.txt" file
Edit the settings.json file to suit your needs

Revision History

Version	Notes	Release Date
v1.5	Updated Newtonsoft.Json to 13.0.3	27th June 2023
v1.4	Re-Compiled for .Net 4.8 Build and Git process improved	20th June 2023
v1.3	Fully compliant with the ever changing Fraud Frevention Headers	30th January 2021
v1.2	Sets TLS1.2 so this does not have to be done in Windows Fully compliant with the changed Fraud Frevention Headers	2nd November 2020
v1.1	Obligations List Box enlarged Company Year Calculation Fixed Obligations Listed in Ascending Order	19th July 2019
v1.0	Initial Release	13th July 2019

The Hashes for the latest version of the SuziVAT.exe program are ...

SHA256 32BEB49C5251EEC71C20A0C420CC27BE935C3F1092B71C524FC5984314D4A9D8
MD5 07831C78487DA622018708395A962B88

Before being able to use the program you will have to Register with HMRC to use their API Service. Requests take 72 hours to process.

Troubleshooting Hints

If you get no response at all when running the program, not even an entry in the log file, then try running it from a command prompt. Some errors happen before the loggng is working.
If when you click on "Get VAT Figures" you get an error this can be caused by not having the right name for the sheet within the Excel file. Check the setting "WorkSheetName".
The setting "VATReturnDateCell" should be set to a cell containing the date of the Return or else left blank. This is a useful cross-check against picking th wrong spreadsheet.

The Source Code for SuziVAT is on GitHub at https://github.com/Suzibandit/SuziVAT. This will likely be the current development code, you should come here for the current release.
To use the Source Code you will need to join the HMRC Developers network and register your version of the program so you can get your own ClientID and Client Secret. There are some hoops to jump through if you choose this course.

Peter Norris
Suzi Bandit Ltd.
27th June 2023