Studio PonchioSTPStudio Ponchio · Tools
Useful tools: calculators and tables, always up to date.
Calculators and reference tables for clients and businesses: updated regularly by the Studio, free, no registration. For concrete cases, we move together from the number to the professional judgement.
Flat-rate regime calculator 2026Substitute tax, contributions and net income in five steps, with the figures of section LM. You can start from your XML e-invoices, which never leave your device.Canone concordato lease: guided drafting (Ferrara and Milan)Fill in the model contract, calculate the rent allowed by the accordi territoriali of Ferrara and Milan, and download Word and PDF free of charge with the schedule for the attestazione di rispondenza. The guided form is in Italian.Regime forfettario or regime ordinario: which is better?A guided five-step comparison of the estimated net income under the two schemes, on the same revenues and the same real costs.Monthly tax deadlinesThe dates that matter this month in Italy: payments, extensions and suspensions, in plain words.Voluntary correction calculatorWhat a missed payment costs to regularise: reduced penalty and statutory interest, in real time.ISTAT FOI indexThe variations for updating lease rents and revalued amounts, with a worked example.Depreciation coefficientsThe most common Italian tax values for business assets, with the practical rules to remember.EU VAT ratesStandard rates of the 27 Member States for intra-EU trade and e-commerce.The firm’s guidesFlat-rate regime or a limited company, forming a company, tax audits: clear guides to help you decide, also available as PDF.Essential formsPowers of attorney, self-declarations and document checklists: templates ready to copy and sign.The Observatory by topicThe archive of tax updates organised by topic: assessments, companies, accounts, EU.
The Studio’s AI tax assistant answers 24/7 and, when needed, hands the case to the professional: online quote in 2 minutes.