Panama Self-Employed ISR — Declaración Jurada de Rentas

Confirm the client is a Panama tax resident and that their income is Panama-source before any computation begins. Panama taxes on a strictly territorial basis — foreign-source income is fully exempt — so misclassifying residency or income source invalidates the entire return. Also confirm worker classification (self-employed/independent vs employee on a planilla), as this drives the CSS rate and filing obligation.

Under Law 462 of 18 March 2025, self-employed workers must now register with the Caja de Seguro Social (CSS) for the mandatory IVM (disability, old-age, death) contribution at 9.36% of taxable income. Optionally, the client may opt into the health & maternity program at an additional 8.5% on a declared base of at least USD 800/month. Verify registration status and compute the annual CSS liability before building the income-tax workpaper, since CSS contributions feed into the cost structure.

Classify every transaction in the client's Panamanian bank statements (Banco General, Banistmo, BNP, BAC Credomatic, Multibank) against DGI territorial rules: Panama-source professional fees and honorarios as taxable income; ordinary and necessary business expenses (office rent, accountancy fees, software subscriptions, marketing) as deductible; personal expenses, entertainment, fines, and ISR payments as non-deductible. Build the Section 7 working paper with totals for gross income, allowable business expenses, and net taxable income.

Apply allowable personal deductions with their statutory caps: personal exemption USD 800 (married only), mortgage interest up to USD 15,000, pension/retirement fund contributions up to USD 15,000, education up to USD 3,600 per student, medical expenses incurred in Panama (documented, no stated cap), charitable donations up to USD 50,000. Then apply the three-bracket progressive ISR table to arrive at gross ISR liability.

Credit the three estimated-tax instalments (cuotas estimadas) already paid on 30 June, 30 September, and 31 December against the gross ISR liability to determine the balance due or refund. Confirm all instalment payment receipts are on file, as DGI e-Tax 2.0 requires these references when filing the final return.

Compile the finalised working paper into the Declaración Jurada de Rentas for natural persons and file through DGI's e-Tax 2.0 portal by 15 March (or by 15 April if a one-month extension was requested before the deadline). Confirm the RUC is active, the Aviso de Operación is current, and all supporting documents are archived. After submission, retain the DGI acknowledgement receipt and schedule the next year's three estimated-tax instalment dates.