The paperwork matters: a till receipt or a simplified invoice without your tax details gives no right to deduct, and mixed-use expenses (car, home office) follow special rules. kontora classifies your expenses, separates the deductible input VAT and prepares the modelo 303 draft; filing it remains up to you or your advisor.
Rather have this calculated for you?
kontora generates your tax forms box by box, tells you how much to set aside and reminds you before every deadline.