Filing the return is arithmetic — the risk is in determination: an EU sale zero-rated without a valid VAT number, a domestic rate where reverse charge applies, input VAT reclaimed on entertainment that isn’t deductible. Each one is what a tax audit pulls. This checks every line’s VAT treatment, flags the wrong ones with the correction, and builds the Danish moms return — output, input, EU acquisitions, net payable — reconciled to the GL.
Portfolio demo · illustrative synthetic data · Danish VAT (25% standard). A production version reads your sales/purchase ledgers and SAF-T.
Select a line to see the VAT rule, the correct treatment, the return impact, and who owns the fix.
SKAT audits target exactly these: zero-rating without a verified VAT number, missing reverse charge, and reclaimed input VAT on non-deductible costs. Catching them before filing avoids assessments, interest and penalties — and an amended return.