VAT Return Report calculates VAT due at FR % using total turnover during period set. This results in FR% of total turnover, which is not VAT due during quarter.
If your quarter was £10,000 turnover and a FR of 10% the VAT Return Report would say £1000 to be paid. There would only be £833 to be paid to customs.
Box 1 on the VAT Return (“VAT due on sales and other outputs”), is being calculated using the total turnover for that period rather than the total VAT-able turnover.
Is that correct? Or is it more of the flat rate turnover in box 6?
Under the FRS sales VAT is calculated on the total turnover, so the report is correct.
I can see where you’re getting £833.33 from (using the ‘VAT fraction’ the VAT within £10k would be £1666.67 (at 20%) so reducing that by half to get to 10% would give you £833.33), but the correct amount of VAT payable under FRS on £10k gross turnover is definitely £1,000.